Analysis

  • max time kernel
    130s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-11-2024 10:46

General

  • Target

    denizbank25.11.2024E80aspc.exe

  • Size

    737KB

  • MD5

    99334c137b21036493a00305cd3189da

  • SHA1

    3f4e22efc054a79fe7f1644b564f7a78d438f497

  • SHA256

    4e3703fac7cd57231af4066573369bddffd7d7c0f8d0c4b2d0fc006c42b87dcc

  • SHA512

    b734366e0678853abdf0e4704abeb88a545156b210d2243f9019e2506f40e6ba640f74b069e1753305245bd1a7376ff9dff462661419a52100e0d1901c976406

  • SSDEEP

    12288:h15vH3RbeXyL05XULmZtHnZW11dSduUmDAqpNjm8M4FK/e3LsNejj1x9/:hnvH35eXNYulnZ6dSTmDQ8LE/APj1n

Malware Config

Extracted

Family

vipkeylogger

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 1 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 11 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\denizbank25.11.2024E80aspc.exe
    "C:\Users\Admin\AppData\Local\Temp\denizbank25.11.2024E80aspc.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3448
    • 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\denizbank25.11.2024E80aspc.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2880
    • C:\Users\Admin\AppData\Local\Temp\denizbank25.11.2024E80aspc.exe
      "C:\Users\Admin\AppData\Local\Temp\denizbank25.11.2024E80aspc.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:1376

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\denizbank25.11.2024E80aspc.exe.log

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_x4voveom.rsc.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/1376-11-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/1376-66-0x0000000074B30000-0x00000000752E0000-memory.dmp

    Filesize

    7.7MB

  • memory/1376-65-0x0000000074B30000-0x00000000752E0000-memory.dmp

    Filesize

    7.7MB

  • memory/1376-64-0x0000000006D30000-0x000000000725C000-memory.dmp

    Filesize

    5.2MB

  • memory/1376-63-0x00000000064C0000-0x0000000006510000-memory.dmp

    Filesize

    320KB

  • memory/1376-62-0x0000000006630000-0x00000000067F2000-memory.dmp

    Filesize

    1.8MB

  • memory/1376-34-0x0000000074B30000-0x00000000752E0000-memory.dmp

    Filesize

    7.7MB

  • memory/1376-14-0x0000000074B30000-0x00000000752E0000-memory.dmp

    Filesize

    7.7MB

  • memory/2880-32-0x0000000005E90000-0x00000000061E4000-memory.dmp

    Filesize

    3.3MB

  • memory/2880-38-0x0000000070560000-0x00000000705AC000-memory.dmp

    Filesize

    304KB

  • memory/2880-61-0x0000000074B30000-0x00000000752E0000-memory.dmp

    Filesize

    7.7MB

  • memory/2880-58-0x0000000007BC0000-0x0000000007BC8000-memory.dmp

    Filesize

    32KB

  • memory/2880-57-0x0000000007BE0000-0x0000000007BFA000-memory.dmp

    Filesize

    104KB

  • memory/2880-16-0x0000000002BF0000-0x0000000002C26000-memory.dmp

    Filesize

    216KB

  • memory/2880-17-0x0000000074B30000-0x00000000752E0000-memory.dmp

    Filesize

    7.7MB

  • memory/2880-18-0x0000000005650000-0x0000000005C78000-memory.dmp

    Filesize

    6.2MB

  • memory/2880-21-0x0000000005530000-0x0000000005596000-memory.dmp

    Filesize

    408KB

  • memory/2880-20-0x00000000054C0000-0x0000000005526000-memory.dmp

    Filesize

    408KB

  • memory/2880-19-0x0000000005420000-0x0000000005442000-memory.dmp

    Filesize

    136KB

  • memory/2880-56-0x0000000007AE0000-0x0000000007AF4000-memory.dmp

    Filesize

    80KB

  • memory/2880-55-0x0000000007AD0000-0x0000000007ADE000-memory.dmp

    Filesize

    56KB

  • memory/2880-31-0x0000000074B30000-0x00000000752E0000-memory.dmp

    Filesize

    7.7MB

  • memory/2880-33-0x0000000074B30000-0x00000000752E0000-memory.dmp

    Filesize

    7.7MB

  • memory/2880-54-0x0000000007AA0000-0x0000000007AB1000-memory.dmp

    Filesize

    68KB

  • memory/2880-35-0x00000000064E0000-0x00000000064FE000-memory.dmp

    Filesize

    120KB

  • memory/2880-36-0x0000000006500000-0x000000000654C000-memory.dmp

    Filesize

    304KB

  • memory/2880-37-0x0000000007500000-0x0000000007532000-memory.dmp

    Filesize

    200KB

  • memory/2880-53-0x0000000007B20000-0x0000000007BB6000-memory.dmp

    Filesize

    600KB

  • memory/2880-48-0x0000000007540000-0x000000000755E000-memory.dmp

    Filesize

    120KB

  • memory/2880-49-0x0000000007770000-0x0000000007813000-memory.dmp

    Filesize

    652KB

  • memory/2880-50-0x0000000007EE0000-0x000000000855A000-memory.dmp

    Filesize

    6.5MB

  • memory/2880-51-0x00000000078A0000-0x00000000078BA000-memory.dmp

    Filesize

    104KB

  • memory/2880-52-0x0000000007910000-0x000000000791A000-memory.dmp

    Filesize

    40KB

  • memory/3448-10-0x0000000006660000-0x00000000066EE000-memory.dmp

    Filesize

    568KB

  • memory/3448-6-0x0000000005200000-0x000000000529C000-memory.dmp

    Filesize

    624KB

  • memory/3448-0-0x0000000074B3E000-0x0000000074B3F000-memory.dmp

    Filesize

    4KB

  • memory/3448-7-0x00000000051D0000-0x00000000051EC000-memory.dmp

    Filesize

    112KB

  • memory/3448-15-0x0000000074B30000-0x00000000752E0000-memory.dmp

    Filesize

    7.7MB

  • memory/3448-8-0x0000000074B3E000-0x0000000074B3F000-memory.dmp

    Filesize

    4KB

  • memory/3448-9-0x0000000074B30000-0x00000000752E0000-memory.dmp

    Filesize

    7.7MB

  • memory/3448-5-0x0000000004F20000-0x0000000004F2A000-memory.dmp

    Filesize

    40KB

  • memory/3448-4-0x0000000074B30000-0x00000000752E0000-memory.dmp

    Filesize

    7.7MB

  • memory/3448-3-0x0000000004F70000-0x0000000005002000-memory.dmp

    Filesize

    584KB

  • memory/3448-2-0x0000000005520000-0x0000000005AC4000-memory.dmp

    Filesize

    5.6MB

  • memory/3448-1-0x0000000000460000-0x000000000051E000-memory.dmp

    Filesize

    760KB