Ac exe Trojan Startpage File Malware Analysis: c87ef2f5f6dbb8d134bae77333d6412b
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Ac.exe Trojan Startpage Analysis

Technical Analysis

File Name ac.exe
File Type
PE32 executable (GUI) Intel 80386, for MS Windows
Scanner Version 1.0.154.174
Database Version 2024-01-08 19:01:53 UTC

Trojan.Win32.Startpage.vb!s11

Malware family: Startpage

N/A
Detection Rate
4,346,368
File Size (bytes)
2024-01-08
Analysis Date

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File Identification

Hash Type Value Action
MD5
c87ef2f5f6dbb8d134bae77333d6412b
SHA1
5ca4b1e57a604b639e69e46f4d25173e4d35b73f
SHA256
55ae8628f6406f16f47f1cfccde53e6bd76a5c170c6fcd0f1e0ea03a195c6cf4
SHA512
717e3d8ac9030c05fd3f3a716e1d9e7c3536a13bc17f6c98708719dd1cd05544a02f677e92144b4c21b704f520e1d3e00e02af575bc9e865664bbd7d9818834c
ImpHash
7ba4c6ba41968785a895443feed60b9c

PE Analysis

Basic Information

Icon
Hash: 443604528203dbe7949739487c589f02
Fuzzy: 47a69eecb9b4b9264c72b270e10e2b72
dHash: dce0e0f0f0f0c4dc
Image Base 0x00400000
Entry Point 0x00d1b1db
Compilation Time 2015-09-15 13:49:49
Checksum 0x00000000 (Actual: 0x0042a59d)
OS Version 5.0
PEiD Signatures PE32 executable (GUI) Intel 80386, for MS Windows
Digital Signature The PE file does not contain a certificate table.
Imports 11 libraries
Exports 1 functions
Resources 4 Resources
Sections 13 Sections

Version Information

FileVersion 1.0.0.0
ProductVersion 1.0.0.0
Translation 0x0409 0x04e4

PE Sections

Name Virtual Address Virtual Size Raw Size Entropy Characteristics MD5
.text 0x00001000 2,904,304 bytes 0 bytes 0.00 (Normal) IMAGE_SCN_CNT_CODE|IMAGE_SCN_MEM_EXECUTE|IMAGE_SCN_MEM_READ D41D8CD98F00B204E9800998ECF8427E
.itext 0x002c7000 8,608 bytes 0 bytes 0.00 (Normal) IMAGE_SCN_CNT_CODE|IMAGE_SCN_MEM_EXECUTE|IMAGE_SCN_MEM_READ D41D8CD98F00B204E9800998ECF8427E
.data 0x002ca000 128,220 bytes 0 bytes 0.00 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE D41D8CD98F00B204E9800998ECF8427E
.bss 0x002ea000 24,424 bytes 0 bytes 0.00 (Normal) IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE D41D8CD98F00B204E9800998ECF8427E
.idata 0x002f0000 15,282 bytes 0 bytes 0.00 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE D41D8CD98F00B204E9800998ECF8427E
.didata 0x002f4000 2,668 bytes 0 bytes 0.00 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE D41D8CD98F00B204E9800998ECF8427E
.edata 0x002f5000 102 bytes 0 bytes 0.00 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ D41D8CD98F00B204E9800998ECF8427E
.tls 0x002f6000 64 bytes 0 bytes 0.00 (Normal) IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE D41D8CD98F00B204E9800998ECF8427E
.rdata 0x002f7000 93 bytes 0 bytes 0.00 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ D41D8CD98F00B204E9800998ECF8427E
.vmp0 0x002f8000 3,189,464 bytes 0 bytes 0.00 (Normal) IMAGE_SCN_CNT_CODE|IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_EXECUTE|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE D41D8CD98F00B204E9800998ECF8427E
.vmp1 0x00603000 4,332,068 bytes 4,332,544 bytes 7.89 (Packed/Encrypted) IMAGE_SCN_CNT_CODE|IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_EXECUTE|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE 1C8B077CC1DB7DC33D1DA680220F0E5E
.reloc 0x00a25000 412 bytes 512 bytes 4.29 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ CA6F935DFA6586EBB7A08DC170712235
.rsrc 0x00a26000 12,152 bytes 12,288 bytes 4.76 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ 2F1EC950ABB377B5150D83C6E8F30BEF
Entropy Analysis Alert

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

Resource Analysis

Total Resources: 4 (11,828 bytes)
Resource Type Count Total Size Percentage
RT_ICON 1 9,640 bytes
81.5%
RT_GROUP_ICON 1 20 bytes
0.2%
RT_VERSION 1 320 bytes
2.7%
RT_MANIFEST 1 1,848 bytes
15.6%

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

The PE file does not contain a certificate table.

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

Trojan.Win32.Startpage.vb!s11 Removal

Gridinsoft has the capability to identify and eliminate Trojan.Win32.Startpage.vb!s11 without requiring further user intervention.

Download Anti-Malware

Removal Instructions

Follow these steps to completely remove the threat from your system

  1. Start by downloading Gridinsoft Anti-Malware to your computer.
  2. Double-click on the gsam-en-install.exe file and follow the on-screen instructions to install the program.
  3. Once the installation of Gridinsoft Anti-Malware is complete, the program will open on the Scan screen.
  4. Click on the "Standard Scan" button to begin scanning your computer for threats.
  5. After the scanning process is finished, click on "Clean Now" to remove any detected threats.
  6. If prompted, restart your system to complete the removal process and ensure all threats are eliminated.
Important: Before You Start
Disconnect from the internet to prevent the malware from spreading or downloading additional threats. Run the scan in Safe Mode for better detection and removal of persistent threats.

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