Analysis

  • max time kernel
    69s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    01-11-2024 04:48

General

  • Target

    a1777be6284799cc06a9d9072f4f3d2181287fb7770cbd7dbfb5bbd7d031dc30.exe

  • Size

    603KB

  • MD5

    adf22eb2587ab26a966c2c9673580a73

  • SHA1

    a846d4a58ae7b294c1958cc538b5ed103e7445fb

  • SHA256

    a1777be6284799cc06a9d9072f4f3d2181287fb7770cbd7dbfb5bbd7d031dc30

  • SHA512

    bde338b7d5d338dba1e8aeb0bcd5e5e390025aec48e4fffe518b194a22fe6aee4cd1db0480e682e85d9d4ac20cc2ab1c4da9fb8fc03b57344145d94390a6ff34

  • 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 5 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.

  • 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 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a1777be6284799cc06a9d9072f4f3d2181287fb7770cbd7dbfb5bbd7d031dc30.exe
    "C:\Users\Admin\AppData\Local\Temp\a1777be6284799cc06a9d9072f4f3d2181287fb7770cbd7dbfb5bbd7d031dc30.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2552
    • 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:2820
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\RePUtenbQjvc" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7742.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2912
    • C:\Users\Admin\AppData\Local\Temp\a1777be6284799cc06a9d9072f4f3d2181287fb7770cbd7dbfb5bbd7d031dc30.exe
      "C:\Users\Admin\AppData\Local\Temp\a1777be6284799cc06a9d9072f4f3d2181287fb7770cbd7dbfb5bbd7d031dc30.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:2928

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp7742.tmp

    Filesize

    1KB

    MD5

    431eeb2f8dd10322999a808a9c224647

    SHA1

    856152b4fbbe6a5bb743d7105f2ce850ce0f642b

    SHA256

    de8f87c2f1382871fb710a7169d7ec221f0e62d4c3a30e1c8b4abe6e1cd810cd

    SHA512

    4fb2f757d62d6cf0c6d7f117a4d754a9eac01d72997b976897617b2d7fb17730403336b8aa35f7bd9980eec71965c79a6a7ca02d0f45ad7c9544bd0e4604c297

  • memory/2552-26-0x0000000074560000-0x0000000074C4E000-memory.dmp

    Filesize

    6.9MB

  • memory/2552-1-0x00000000013C0000-0x000000000145C000-memory.dmp

    Filesize

    624KB

  • memory/2552-2-0x0000000074560000-0x0000000074C4E000-memory.dmp

    Filesize

    6.9MB

  • memory/2552-3-0x0000000000570000-0x000000000058E000-memory.dmp

    Filesize

    120KB

  • memory/2552-4-0x000000007456E000-0x000000007456F000-memory.dmp

    Filesize

    4KB

  • memory/2552-5-0x0000000074560000-0x0000000074C4E000-memory.dmp

    Filesize

    6.9MB

  • memory/2552-6-0x0000000000370000-0x00000000003D8000-memory.dmp

    Filesize

    416KB

  • memory/2552-0-0x000000007456E000-0x000000007456F000-memory.dmp

    Filesize

    4KB

  • memory/2928-14-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/2928-25-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/2928-24-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/2928-23-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/2928-22-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2928-20-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/2928-16-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/2928-18-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB