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Server1.exe Trojan Banker Analysis

Updated 2 months ago
Checked by Malware Check
Server1.exe

Technical Analysis

File Name Server1.exe
File Type
PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed
Scanner Version 1.0.227.174
Database Version 2025-10-12 14:00:16 UTC
⚠

Trojan.Win32.Banker.oa!s2

Malware family: Banker

Banking Trojans specifically target online banking and financial services to steal credentials, account information, and personal identification data. These threats focus on financial fraud, unauthorized transactions, and identity theft through specialized techniques designed to bypass banking security measures.
N/A
Detection Rate
35,160
File Size (bytes)
2025-10-12
Analysis Date

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File Identification

Hash Type Value Action
MD5
40561573e51d52e1580bf85f6018c341
SHA1
11e7863703ece15d261a17b2c55f9334c48e1296
SHA256
486de759c7340c5d26306456ba3b23bc2f4fe4d07b5cfa1becb2770ff0930d3a
SHA512
6d7d3f21cd58da235e0d5c520a63f96932ef32208c345a4bb0221e6ceb542eae2c1b38f7e21dae0d37e7ae90ad349a76e0d08aa505269383d17f8ac7d0254dcc
ImpHash
6c5b3a3376d8e198f78d7c136b92a079

PE Analysis

Basic Information

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Icon
Hash: 9c1a5880f5e9239b8ae54d21af80a02b
Fuzzy: b1b0b2187a400d1addbb86041096fad1
dHash: 008aa2ecd18183aa
Image Base 0x00400000
Entry Point 0x0041c200
Compilation Time 2019-05-03 18:06:47
Checksum 0x00000000 (Actual: 0x00008c09)
OS Version 5.0
PEiD Signatures PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed
Digital Signature No valid SignedData structure was found.
Imports 6 libraries
advapi32, KERNEL32, oleaut32, user32, ws2_32, wsock32
Exports 0 functions
Resources 6 Resources
Sections 3 Sections

Version Information

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CompanyName Microsoft Corporation
FileDescription Microsoft Windows Spooler
FileVersion 4.0.0.0
InternalName Server
LegalCopyright © Microsoft Corporation. All rights reserved.
OriginalFilename Server
ProductVersion 4.0.0
Translation 0x0409 0x04e4

PE Sections

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Name Virtual Address Virtual Size Raw Size Entropy Characteristics MD5
UPX0 0x00001000 86,016 bytes 0 bytes 0.00 (Normal) IMAGE_SCN_CNT_UNINITIALIZED_DATA|IMAGE_SCN_MEM_EXECUTE|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE D41D8CD98F00B204E9800998ECF8427E
UPX1 0x00016000 28,672 bytes 25,600 bytes 7.89 (Packed/Encrypted) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_EXECUTE|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE 724EF634D8D1145A4CA91130BF75606B
.rsrc 0x0001d000 8,192 bytes 6,144 bytes 4.53 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE 7C08DE8CC1978816DD5F6C840102B0FD
Entropy Analysis Alert

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

Resource Analysis

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Total Resources: 6 (5,170 bytes)
Resource Type Count Total Size Percentage
RT_ICON 1 4,264 bytes
82.5%
RT_RCDATA 3 170 bytes
3.3%
RT_GROUP_ICON 1 20 bytes
0.4%
RT_VERSION 1 716 bytes
13.8%

Certificate Chain Analysis

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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.Banker.oa!s2 Removal

Gridinsoft has the capability to identify and eliminate Trojan.Win32.Banker.oa!s2 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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