Analysis

  • max time kernel
    122s
  • max time network
    132s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250217-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/02/2025, 07:47

General

  • Target

    Bank Transfer Form.exe

  • Size

    1.0MB

  • MD5

    2f8a0052d88d31c435d71cd69f930f02

  • SHA1

    993258bc6b7f24bf6cddb3c2576d2f5e2d113df2

  • SHA256

    3c00e14ee895971b1e91ad04aebc4970b9526b79ee8413c900acbb9b4ae702b8

  • SHA512

    272c5567178a68e7b5c974318d248d75149908b98434ca6ea3f943b05bb6724bde012343728b0d58e994303dfd736fed1d12be5188a930c63bef248dc4e17899

  • SSDEEP

    12288:NuJeZjC/WM6HHmtLgXcyMhiHig8fAigjPUxPiu2hqdb8ilACux5:wJeM/WTHGJgXug86PU9iFhqdb8iyz

Malware Config

Extracted

Family

vipkeylogger

Credentials

Signatures

  • VIPKeylogger

    VIPKeylogger is a keylogger and infostealer written in C# and it resembles SnakeKeylogger that was found in 2020.

  • Vipkeylogger family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Looks up external IP address via web service 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Bank Transfer Form.exe
    "C:\Users\Admin\AppData\Local\Temp\Bank Transfer Form.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:896
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\Bank Transfer Form.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4684
    • C:\Users\Admin\AppData\Local\Temp\Bank Transfer Form.exe
      "C:\Users\Admin\AppData\Local\Temp\Bank Transfer Form.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:3824

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Bank Transfer Form.exe.log

    Filesize

    1KB

    MD5

    de3d9ab4d240ea92574fb9f15d887599

    SHA1

    a34a302862495c59af59e2b3ab15e23625de2f77

    SHA256

    d6eeab29d2390946ef726c2bb234f820296afad15aa8c9b34078150d63c3eb63

    SHA512

    1f5a46df6ff38e6dbc415e405d5d3f07d840a219f0e0c5027aac9bfc5e51badbfb4c6ce96e6ee0f2d5ebd59d46902d087cc572fe21bc0cd849653df627b49492

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_uidieoa3.wzt.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/896-6-0x0000000004EC0000-0x0000000004ECA000-memory.dmp

    Filesize

    40KB

  • memory/896-3-0x0000000004990000-0x0000000004A22000-memory.dmp

    Filesize

    584KB

  • memory/896-4-0x0000000004A40000-0x0000000004D94000-memory.dmp

    Filesize

    3.3MB

  • memory/896-5-0x0000000074D30000-0x00000000754E0000-memory.dmp

    Filesize

    7.7MB

  • memory/896-16-0x0000000074D30000-0x00000000754E0000-memory.dmp

    Filesize

    7.7MB

  • memory/896-7-0x0000000006360000-0x000000000637E000-memory.dmp

    Filesize

    120KB

  • memory/896-8-0x0000000074D3E000-0x0000000074D3F000-memory.dmp

    Filesize

    4KB

  • memory/896-9-0x0000000074D30000-0x00000000754E0000-memory.dmp

    Filesize

    7.7MB

  • memory/896-10-0x0000000004400000-0x000000000448E000-memory.dmp

    Filesize

    568KB

  • memory/896-11-0x000000000C110000-0x000000000C1AC000-memory.dmp

    Filesize

    624KB

  • memory/896-0-0x0000000074D3E000-0x0000000074D3F000-memory.dmp

    Filesize

    4KB

  • memory/896-2-0x0000000004FF0000-0x0000000005594000-memory.dmp

    Filesize

    5.6MB

  • memory/896-1-0x0000000000040000-0x000000000014E000-memory.dmp

    Filesize

    1.1MB

  • memory/3824-54-0x0000000006870000-0x00000000068C0000-memory.dmp

    Filesize

    320KB

  • memory/3824-15-0x0000000074D30000-0x00000000754E0000-memory.dmp

    Filesize

    7.7MB

  • memory/3824-67-0x0000000074D30000-0x00000000754E0000-memory.dmp

    Filesize

    7.7MB

  • memory/3824-58-0x0000000074D30000-0x00000000754E0000-memory.dmp

    Filesize

    7.7MB

  • memory/3824-12-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/3824-53-0x00000000069D0000-0x0000000006B92000-memory.dmp

    Filesize

    1.8MB

  • memory/3824-22-0x0000000074D30000-0x00000000754E0000-memory.dmp

    Filesize

    7.7MB

  • memory/4684-25-0x00000000060D0000-0x0000000006136000-memory.dmp

    Filesize

    408KB

  • memory/4684-21-0x0000000074D30000-0x00000000754E0000-memory.dmp

    Filesize

    7.7MB

  • memory/4684-17-0x0000000074D30000-0x00000000754E0000-memory.dmp

    Filesize

    7.7MB

  • memory/4684-23-0x0000000005F50000-0x0000000005F72000-memory.dmp

    Filesize

    136KB

  • memory/4684-35-0x0000000006310000-0x0000000006664000-memory.dmp

    Filesize

    3.3MB

  • memory/4684-36-0x00000000066F0000-0x000000000670E000-memory.dmp

    Filesize

    120KB

  • memory/4684-37-0x0000000006720000-0x000000000676C000-memory.dmp

    Filesize

    304KB

  • memory/4684-38-0x0000000006CC0000-0x0000000006CF2000-memory.dmp

    Filesize

    200KB

  • memory/4684-39-0x0000000070610000-0x000000007065C000-memory.dmp

    Filesize

    304KB

  • memory/4684-49-0x0000000006C80000-0x0000000006C9E000-memory.dmp

    Filesize

    120KB

  • memory/4684-50-0x00000000078D0000-0x0000000007973000-memory.dmp

    Filesize

    652KB

  • memory/4684-51-0x0000000008050000-0x00000000086CA000-memory.dmp

    Filesize

    6.5MB

  • memory/4684-52-0x0000000007A10000-0x0000000007A2A000-memory.dmp

    Filesize

    104KB

  • memory/4684-24-0x0000000005FF0000-0x0000000006056000-memory.dmp

    Filesize

    408KB

  • memory/4684-20-0x0000000074D30000-0x00000000754E0000-memory.dmp

    Filesize

    7.7MB

  • memory/4684-55-0x0000000007AA0000-0x0000000007AAA000-memory.dmp

    Filesize

    40KB

  • memory/4684-56-0x0000000007CB0000-0x0000000007D46000-memory.dmp

    Filesize

    600KB

  • memory/4684-57-0x0000000007C30000-0x0000000007C41000-memory.dmp

    Filesize

    68KB

  • memory/4684-19-0x00000000057D0000-0x0000000005DF8000-memory.dmp

    Filesize

    6.2MB

  • memory/4684-59-0x0000000074D30000-0x00000000754E0000-memory.dmp

    Filesize

    7.7MB

  • memory/4684-60-0x0000000007C60000-0x0000000007C6E000-memory.dmp

    Filesize

    56KB

  • memory/4684-61-0x0000000007C70000-0x0000000007C84000-memory.dmp

    Filesize

    80KB

  • memory/4684-62-0x0000000007D70000-0x0000000007D8A000-memory.dmp

    Filesize

    104KB

  • memory/4684-63-0x0000000007D50000-0x0000000007D58000-memory.dmp

    Filesize

    32KB

  • memory/4684-66-0x0000000074D30000-0x00000000754E0000-memory.dmp

    Filesize

    7.7MB

  • memory/4684-18-0x0000000005110000-0x0000000005146000-memory.dmp

    Filesize

    216KB