Analysis

  • max time kernel
    121s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    22-10-2024 13:34

General

  • Target

    SecuriteInfo.com.BackDoor.AgentTeslaNET.20.5206.2075.exe

  • Size

    658KB

  • MD5

    b2b44061f8271ad0f7d3a4febeb07751

  • SHA1

    d312798b7737931cb492abb1b7bd870f44bd9677

  • SHA256

    bc5ee788c33389a426c9b5b10405a41a83f6875864bf09b0de6df15ab88cfbda

  • SHA512

    c83fcb92a4f175857b621f9b6b411477a8aeed38024a907515a7ec3218ff58a9d05de2d7d09ac5a18e38e400ad3d1f5263b9838df3565ac6fe55964021cf168a

  • SSDEEP

    12288:kgc3Vk+O7TL2S/2NuAigYNlU90z7rOICfPoTkZPg0:kgYk+m7AigylU90z7mFZX

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.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 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
  • 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 5 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BackDoor.AgentTeslaNET.20.5206.2075.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BackDoor.AgentTeslaNET.20.5206.2075.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1488
    • 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\SecuriteInfo.com.BackDoor.AgentTeslaNET.20.5206.2075.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2000
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\xRAvleeiuDbJ.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:276
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\xRAvleeiuDbJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF92E.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:1928
    • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BackDoor.AgentTeslaNET.20.5206.2075.exe
      "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BackDoor.AgentTeslaNET.20.5206.2075.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:2620

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpF92E.tmp

    Filesize

    1KB

    MD5

    b5ffeed14734de704b2bc53ae73d5342

    SHA1

    69c3c2ab6c16baf8db38c70e91d19787bcbdf428

    SHA256

    f0c92ac310bbfbdec783c0640a67815e5cc5db5990a8d041fe76bb709b492b07

    SHA512

    11dcfba87f9a845f853002e4cbbbd4bf01090ca087482963bd82f65527611d425acf5cdd41345dfcd9147c3f0d8fa18a362034bad2ab9677a4e99ddea97704fc

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

    Filesize

    7KB

    MD5

    2e5b2dd0208fb4a94d16b99d11a05fc0

    SHA1

    00dd8a3935a16fd1df1bca1366982950443b10c5

    SHA256

    7e8c2b3f5ea3753cc0f69db3d465d97f3ac20b2a81f4d04778f913dc747210d2

    SHA512

    32d21071a1228a3152ffccf76f0dbd6c91c83fd525cf975c308a43c3b97b64553357b49d9a758685c995f6b228111a6ba5c94ec3be9da263412261b5734068a0

  • memory/1488-4-0x00000000002C0000-0x00000000002CE000-memory.dmp

    Filesize

    56KB

  • memory/1488-33-0x0000000074310000-0x00000000749FE000-memory.dmp

    Filesize

    6.9MB

  • memory/1488-0-0x000000007431E000-0x000000007431F000-memory.dmp

    Filesize

    4KB

  • memory/1488-5-0x000000007431E000-0x000000007431F000-memory.dmp

    Filesize

    4KB

  • memory/1488-6-0x0000000074310000-0x00000000749FE000-memory.dmp

    Filesize

    6.9MB

  • memory/1488-7-0x00000000052A0000-0x000000000532C000-memory.dmp

    Filesize

    560KB

  • memory/1488-2-0x0000000074310000-0x00000000749FE000-memory.dmp

    Filesize

    6.9MB

  • memory/1488-1-0x0000000000940000-0x00000000009EA000-memory.dmp

    Filesize

    680KB

  • memory/1488-3-0x0000000004C20000-0x0000000004CBE000-memory.dmp

    Filesize

    632KB

  • memory/2620-20-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2620-32-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2620-30-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2620-29-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2620-28-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2620-26-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2620-24-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2620-22-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB