Analysis

  • max time kernel
    136s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-11-2024 14:17

General

  • Target

    malw.exe

  • Size

    603KB

  • MD5

    39c7da67656e52cfe66f0fb0a223cdee

  • SHA1

    3dd0f07f64387e25ebba373ac9557cc7941ded55

  • SHA256

    a1b4af5ce8cb01ceddb2c9269dafbea2c5c9340e21a916a59b304158110aa4c5

  • SHA512

    b21d56b7ae71993d7d4456d1fa0f7ce4d90049aedd5d6685da709b8e213aa51388e3f8a7d21e5806d45bf579d96a9eab7a94f3ba2905c8e5f7059c1b5620a4c8

  • SSDEEP

    12288:woaDPw1Qk89Tmyy8e9vLr78Ly3KzgGUsB/gRZYHdh:gLw9gTFyXjvgy3Kz/UKWqd

Malware Config

Extracted

Credentials

  • Protocol:
    ftp
  • Host:
    50.31.176.103
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    HW=f09RQ-BL1

Extracted

Family

snakekeylogger

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://50.31.176.103/
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    HW=f09RQ-BL1

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 1 IoCs
  • Snakekeylogger 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
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 9 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\malw.exe
    "C:\Users\Admin\AppData\Local\Temp\malw.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:208
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\RePUtenbQjvc.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:924
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\RePUtenbQjvc" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF2DC.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2244
    • C:\Users\Admin\AppData\Local\Temp\malw.exe
      "C:\Users\Admin\AppData\Local\Temp\malw.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:2988

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ccexdbcx.033.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmpF2DC.tmp

    Filesize

    1KB

    MD5

    2ce9d67cd5d943075dffaa1f21eec932

    SHA1

    b536f22bf73fe1a3652fe08f325d25a636472f4a

    SHA256

    a81ed5aa1d9d0f1178a7814fd0d360b0057bc1540469aae2c20b094e14fe159d

    SHA512

    45556228e2c0719b1d31914732b67067a8a76895e0b9cf55a2401787156b3284a53b5a18ffefa7be5961c190104df35031caf58f5abac458759204c2be27767f

  • memory/208-6-0x0000000005010000-0x00000000050AC000-memory.dmp

    Filesize

    624KB

  • memory/208-3-0x0000000004D70000-0x0000000004E02000-memory.dmp

    Filesize

    584KB

  • memory/208-4-0x0000000074850000-0x0000000075000000-memory.dmp

    Filesize

    7.7MB

  • memory/208-5-0x0000000004D00000-0x0000000004D0A000-memory.dmp

    Filesize

    40KB

  • memory/208-2-0x0000000005320000-0x00000000058C4000-memory.dmp

    Filesize

    5.6MB

  • memory/208-7-0x0000000005FD0000-0x0000000005FEE000-memory.dmp

    Filesize

    120KB

  • memory/208-8-0x000000007485E000-0x000000007485F000-memory.dmp

    Filesize

    4KB

  • memory/208-9-0x0000000074850000-0x0000000075000000-memory.dmp

    Filesize

    7.7MB

  • memory/208-10-0x0000000004700000-0x0000000004768000-memory.dmp

    Filesize

    416KB

  • memory/208-0-0x000000007485E000-0x000000007485F000-memory.dmp

    Filesize

    4KB

  • memory/208-1-0x0000000000270000-0x000000000030C000-memory.dmp

    Filesize

    624KB

  • memory/208-24-0x0000000074850000-0x0000000075000000-memory.dmp

    Filesize

    7.7MB

  • memory/924-55-0x0000000007030000-0x000000000704A000-memory.dmp

    Filesize

    104KB

  • memory/924-58-0x0000000007230000-0x0000000007241000-memory.dmp

    Filesize

    68KB

  • memory/924-19-0x0000000074850000-0x0000000075000000-memory.dmp

    Filesize

    7.7MB

  • memory/924-21-0x0000000074850000-0x0000000075000000-memory.dmp

    Filesize

    7.7MB

  • memory/924-65-0x0000000074850000-0x0000000075000000-memory.dmp

    Filesize

    7.7MB

  • memory/924-15-0x0000000002410000-0x0000000002446000-memory.dmp

    Filesize

    216KB

  • memory/924-31-0x0000000004DD0000-0x0000000004E36000-memory.dmp

    Filesize

    408KB

  • memory/924-17-0x0000000004F30000-0x0000000005558000-memory.dmp

    Filesize

    6.2MB

  • memory/924-62-0x0000000007350000-0x0000000007358000-memory.dmp

    Filesize

    32KB

  • memory/924-32-0x0000000005560000-0x00000000055C6000-memory.dmp

    Filesize

    408KB

  • memory/924-25-0x0000000004D30000-0x0000000004D52000-memory.dmp

    Filesize

    136KB

  • memory/924-38-0x00000000056D0000-0x0000000005A24000-memory.dmp

    Filesize

    3.3MB

  • memory/924-39-0x0000000005D00000-0x0000000005D1E000-memory.dmp

    Filesize

    120KB

  • memory/924-40-0x0000000005DA0000-0x0000000005DEC000-memory.dmp

    Filesize

    304KB

  • memory/924-41-0x0000000006300000-0x0000000006332000-memory.dmp

    Filesize

    200KB

  • memory/924-42-0x0000000070570000-0x00000000705BC000-memory.dmp

    Filesize

    304KB

  • memory/924-52-0x00000000062B0000-0x00000000062CE000-memory.dmp

    Filesize

    120KB

  • memory/924-53-0x0000000006D00000-0x0000000006DA3000-memory.dmp

    Filesize

    652KB

  • memory/924-54-0x0000000007670000-0x0000000007CEA000-memory.dmp

    Filesize

    6.5MB

  • memory/924-16-0x0000000074850000-0x0000000075000000-memory.dmp

    Filesize

    7.7MB

  • memory/924-56-0x00000000070A0000-0x00000000070AA000-memory.dmp

    Filesize

    40KB

  • memory/924-57-0x00000000072B0000-0x0000000007346000-memory.dmp

    Filesize

    600KB

  • memory/924-61-0x0000000007370000-0x000000000738A000-memory.dmp

    Filesize

    104KB

  • memory/924-59-0x0000000007260000-0x000000000726E000-memory.dmp

    Filesize

    56KB

  • memory/924-60-0x0000000007270000-0x0000000007284000-memory.dmp

    Filesize

    80KB

  • memory/2988-20-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/2988-34-0x0000000074850000-0x0000000075000000-memory.dmp

    Filesize

    7.7MB

  • memory/2988-23-0x0000000074850000-0x0000000075000000-memory.dmp

    Filesize

    7.7MB

  • memory/2988-66-0x00000000066C0000-0x0000000006710000-memory.dmp

    Filesize

    320KB

  • memory/2988-67-0x00000000068E0000-0x0000000006AA2000-memory.dmp

    Filesize

    1.8MB

  • memory/2988-68-0x0000000074850000-0x0000000075000000-memory.dmp

    Filesize

    7.7MB

  • memory/2988-69-0x0000000074850000-0x0000000075000000-memory.dmp

    Filesize

    7.7MB