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[凯凯]Cookie账号管理器 V1.8.exe Trojan Downloader Analysis

Technical Analysis

File Name [凯凯]Cookie账号管理器 V1.8.exe
File Type
PE32 executable (GUI) Intel 80386, for MS Windows
Scanner Version 1.0.207.174
Database Version 2025-02-06 13:00:32 UTC

Trojan.Win32.Downloader.mz!n

Malware family: Downloader

Downloader Trojans specialize in retrieving and installing additional malware payloads. Unlike comprehensive malware, they focus specifically on payload delivery rather than direct system damage.
N/A
Detection Rate
10,329,600
File Size (bytes)
2025-02-06
Analysis Date

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File Identification

Hash Type Value Action
MD5
1860c35666630bf515c3a8997f17ef06
SHA1
261bcbe851fd4ffc2d3d8c7b30ead098cdc2a19f
SHA256
4f66f6f55bd0974a0bd29ab86137f8f5227d499eaedfcdef1f7d99fdc97a8abc
SHA512
7b0fc7a4eca51d3a033bf82e5f2dea4c69421fe25598f1f34e24fe8256179e9866bc01a1b3323020e2b994bda73b74557558e6e7b506cb7bb3b57deac39ebf31
ImpHash
332f7ce65ead0adfb3d35147033aabe9

PE Analysis

Basic Information

Icon
Hash: 82cda1b5a550ffcd6cb6b89153678dd7
Fuzzy: 3b5d3c7d207e37dceeedd301e35e2e58
dHash: 9633c3cc2cce2b9a
Image Base 0x00400000
Entry Point 0x0049ab80
Compilation Time 1992-06-19 22:22:17
Checksum 0x00000000 (Actual: 0x009e7f9e)
OS Version 4.0
PEiD Signatures PE32 executable (GUI) Intel 80386, for MS Windows
Digital Signature No valid SignedData structure was found.
Imports 12 libraries
Exports 0 functions
Resources 62 Resources
Sections 8 Sections

Version Information

CompanyName Synaptics
FileDescription Synaptics Pointing Device Driver
FileVersion 1.0.0.4
InternalName
LegalCopyright
LegalTrademarks
OriginalFilename
ProductName Synaptics Pointing Device Driver
ProductVersion 1.0.0.0
Comments
Translation 0x041f 0x04e6

PE Sections

Name Virtual Address Virtual Size Raw Size Entropy Characteristics MD5
CODE 0x00001000 629,740 bytes 629,760 bytes 6.57 (Compressed) IMAGE_SCN_CNT_CODE|IMAGE_SCN_MEM_EXECUTE|IMAGE_SCN_MEM_READ 33FBE30E8A64654287EDD1BF05AE7C8C
DATA 0x0009b000 11,860 bytes 12,288 bytes 4.85 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE 1F5E19E7D20C1D128443D738AC7BC610
BSS 0x0009e000 4,581 bytes 0 bytes 0.00 (Normal) IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE D41D8CD98F00B204E9800998ECF8427E
.idata 0x000a0000 10,818 bytes 11,264 bytes 4.92 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE 21FF53180B390DC06E3A1ADF0E57A073
.tls 0x000a3000 16 bytes 0 bytes 0.00 (Normal) IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE D41D8CD98F00B204E9800998ECF8427E
.rdata 0x000a4000 57 bytes 512 bytes 0.78 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_SHARED|IMAGE_SCN_MEM_READ A92CF494C617731A527994013429AD97
.reloc 0x000a5000 43,392 bytes 43,520 bytes 6.67 (Compressed) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_SHARED|IMAGE_SCN_MEM_READ DCD1B1C3F3D28D444920211170D1E8E6
.rsrc 0x000b0000 9,630,908 bytes 9,631,232 bytes 7.61 (Packed/Encrypted) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_SHARED|IMAGE_SCN_MEM_READ EEC7356320C1600274551E7F81DB0E6F
Entropy Analysis Alert

1 section(s) with high entropy (≥7.5) detected - possible packing/encryption

2 section(s) with elevated entropy (≥6.5) - possible compression

Resource Analysis

Total Resources: 62 (9,627,375 bytes)
Resource Type Count Total Size Percentage
RT_CURSOR 7 2,156 bytes
0%
RT_BITMAP 11 4,892 bytes
0.1%
RT_ICON 2 8,528 bytes
0.1%
RT_DIALOG 1 82 bytes
0%
RT_STRING 24 17,100 bytes
0.2%
RT_RCDATA 8 9,593,685 bytes
99.7%
RT_GROUP_CURSOR 7 140 bytes
0%
RT_GROUP_ICON 1 20 bytes
0%
RT_VERSION 1 772 bytes
0%

Certificate Chain Analysis

No Digital Signatures

This file is not digitally signed.

Security Implications:
  • Cannot verify the publisher's identity
  • Increased security risk when running this file
  • May trigger security warnings on some systems

⚠ This file either lacks a digital signature or the certificate chain could not be verified
Exercise caution when executing unsigned files from unknown sources

Certificate Verification Status

No valid SignedData structure was found.

Recommendation: Verify the file source and ensure it comes from a trusted publisher.

Trojan.Win32.Downloader.mz!n Removal

Gridinsoft has the capability to identify and eliminate Trojan.Win32.Downloader.mz!n without requiring further user intervention.

Download Anti-Malware

Removal Instructions

Follow these steps to completely remove the threat from your system

  1. 1
    Get Gridinsoft Anti-Malware — it's a quick 2 MB download that won't slow down your PC.
  2. 2
    Run the installer gsam-en-install.exe. The setup takes about 2 minutes and doesn't require a restart.
  3. 3
    The app launches right after installation. You'll see the main dashboard with the scan button front and center.
  4. 4
    Hit "Standard Scan" — this checks all the spots where malware typically hides: temp folders, browser data, startup programs, and system directories.
  5. 5
    Once the scan finds this threat, click "Clean Now". The removal usually happens instantly, though some stubborn infections may need a reboot.
  6. 6
    If you see a restart prompt, go ahead and reboot. This clears any malware that was running in memory and ensures your system starts fresh.
Important: Before You Start
Quick tip: unplug from the internet before scanning. Some malware phones home for instructions or downloads extra payloads when it senses trouble. If the infection is severe, boot into Safe Mode first — it limits what can run and makes cleanup easier.

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