Analysis

  • max time kernel
    124s
  • max time network
    125s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-10-2024 03:59

General

  • Target

    Request for offer.exe

  • Size

    626KB

  • MD5

    bbc2241c8b26c710dba1bdb4686d6e54

  • SHA1

    b77585f70690e5055e29f6eef85f22045ec74082

  • SHA256

    e3311b58cd5550d55691f8a0cb956d49cd1d59ad10ae119a5e9b62452c652e68

  • SHA512

    a5ec6673174d4623afcbfe7c32d477daa86ad4921b7d1d8949a1cb88b46a368de5601c9cf4c7a09232d5e49fa743fe3a42cc501f4a798cb8290f3ca279239d85

  • SSDEEP

    12288:+5w+f0e7N9Jj0GxvtyIS7R3jmoXV8l4Ol00zVGq2dYAeM:+XZbj0GtwIgRzO4OTI5

Malware Config

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 1 IoCs
  • 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
  • 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 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Request for offer.exe
    "C:\Users\Admin\AppData\Local\Temp\Request for offer.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:224
    • 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\Request for offer.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3216
    • C:\Users\Admin\AppData\Local\Temp\Request for offer.exe
      "C:\Users\Admin\AppData\Local\Temp\Request for offer.exe"
      2⤵
        PID:3292
      • C:\Users\Admin\AppData\Local\Temp\Request for offer.exe
        "C:\Users\Admin\AppData\Local\Temp\Request for offer.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:3972

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Request for offer.exe.log

      Filesize

      2KB

      MD5

      5bc48002a3f5533ceb37c32fd38614cc

      SHA1

      9f0f8bc2b8ce5ff511d25d5221045dc657a762ba

      SHA256

      b4422dc9f7fde2154a582fb70d90e73408f8a394d979c704e5f4e13e928e7295

      SHA512

      2ee2102f4377b0098e350ed1276f8cf6f8ee6389c8fae27348fba65ce9fc09138821ac776e093028c23da93ca92566b43bb75328850776bdbe94f3cf69b42d04

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_gaosvibw.02b.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • memory/224-6-0x00000000743DE000-0x00000000743DF000-memory.dmp

      Filesize

      4KB

    • memory/224-3-0x0000000005C10000-0x00000000061B4000-memory.dmp

      Filesize

      5.6MB

    • memory/224-4-0x0000000005700000-0x0000000005792000-memory.dmp

      Filesize

      584KB

    • memory/224-5-0x0000000005960000-0x0000000005978000-memory.dmp

      Filesize

      96KB

    • memory/224-15-0x00000000743D0000-0x0000000074B80000-memory.dmp

      Filesize

      7.7MB

    • memory/224-7-0x00000000743D0000-0x0000000074B80000-memory.dmp

      Filesize

      7.7MB

    • memory/224-8-0x0000000006D20000-0x0000000006D88000-memory.dmp

      Filesize

      416KB

    • memory/224-9-0x0000000009480000-0x000000000951C000-memory.dmp

      Filesize

      624KB

    • memory/224-10-0x0000000004F80000-0x0000000004F8A000-memory.dmp

      Filesize

      40KB

    • memory/224-11-0x00000000743D0000-0x0000000074B80000-memory.dmp

      Filesize

      7.7MB

    • memory/224-2-0x00000000743D0000-0x0000000074B80000-memory.dmp

      Filesize

      7.7MB

    • memory/224-1-0x0000000000AB0000-0x0000000000B52000-memory.dmp

      Filesize

      648KB

    • memory/224-0-0x00000000743DE000-0x00000000743DF000-memory.dmp

      Filesize

      4KB

    • memory/3216-23-0x0000000004B10000-0x0000000004B76000-memory.dmp

      Filesize

      408KB

    • memory/3216-55-0x0000000006F50000-0x0000000006F61000-memory.dmp

      Filesize

      68KB

    • memory/3216-19-0x00000000743D0000-0x0000000074B80000-memory.dmp

      Filesize

      7.7MB

    • memory/3216-20-0x0000000004E50000-0x0000000005478000-memory.dmp

      Filesize

      6.2MB

    • memory/3216-21-0x00000000743D0000-0x0000000074B80000-memory.dmp

      Filesize

      7.7MB

    • memory/3216-18-0x00000000743D0000-0x0000000074B80000-memory.dmp

      Filesize

      7.7MB

    • memory/3216-24-0x0000000004B80000-0x0000000004BE6000-memory.dmp

      Filesize

      408KB

    • memory/3216-62-0x00000000743D0000-0x0000000074B80000-memory.dmp

      Filesize

      7.7MB

    • memory/3216-59-0x0000000007070000-0x0000000007078000-memory.dmp

      Filesize

      32KB

    • memory/3216-22-0x0000000004A60000-0x0000000004A82000-memory.dmp

      Filesize

      136KB

    • memory/3216-58-0x0000000007090000-0x00000000070AA000-memory.dmp

      Filesize

      104KB

    • memory/3216-35-0x0000000005480000-0x00000000057D4000-memory.dmp

      Filesize

      3.3MB

    • memory/3216-36-0x0000000005A20000-0x0000000005A3E000-memory.dmp

      Filesize

      120KB

    • memory/3216-37-0x0000000005A70000-0x0000000005ABC000-memory.dmp

      Filesize

      304KB

    • memory/3216-38-0x0000000006010000-0x0000000006042000-memory.dmp

      Filesize

      200KB

    • memory/3216-39-0x000000006FDE0000-0x000000006FE2C000-memory.dmp

      Filesize

      304KB

    • memory/3216-49-0x0000000005FF0000-0x000000000600E000-memory.dmp

      Filesize

      120KB

    • memory/3216-50-0x0000000006CE0000-0x0000000006D83000-memory.dmp

      Filesize

      652KB

    • memory/3216-51-0x0000000007410000-0x0000000007A8A000-memory.dmp

      Filesize

      6.5MB

    • memory/3216-52-0x0000000006100000-0x000000000611A000-memory.dmp

      Filesize

      104KB

    • memory/3216-53-0x0000000006DC0000-0x0000000006DCA000-memory.dmp

      Filesize

      40KB

    • memory/3216-54-0x0000000006FD0000-0x0000000007066000-memory.dmp

      Filesize

      600KB

    • memory/3216-17-0x0000000002140000-0x0000000002176000-memory.dmp

      Filesize

      216KB

    • memory/3216-56-0x0000000006F80000-0x0000000006F8E000-memory.dmp

      Filesize

      56KB

    • memory/3216-57-0x0000000006F90000-0x0000000006FA4000-memory.dmp

      Filesize

      80KB

    • memory/3972-12-0x0000000000400000-0x0000000000426000-memory.dmp

      Filesize

      152KB

    • memory/3972-25-0x00000000743D0000-0x0000000074B80000-memory.dmp

      Filesize

      7.7MB

    • memory/3972-16-0x00000000743D0000-0x0000000074B80000-memory.dmp

      Filesize

      7.7MB

    • memory/3972-63-0x00000000743D0000-0x0000000074B80000-memory.dmp

      Filesize

      7.7MB

    • memory/3972-64-0x00000000743D0000-0x0000000074B80000-memory.dmp

      Filesize

      7.7MB

    • memory/3972-65-0x0000000006C70000-0x0000000006CC0000-memory.dmp

      Filesize

      320KB

    • memory/3972-66-0x0000000006E90000-0x0000000007052000-memory.dmp

      Filesize

      1.8MB