Analysis

  • max time kernel
    147s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-06-2024 02:16

General

  • Target

    cd8c25669902d522e8cfb50cbd19d2080223e6d93c4e43d13ae13f1801d89214.exe

  • Size

    733KB

  • MD5

    1c36963334fc0e6bb41991b648bd1e35

  • SHA1

    2398864c898403fbd87a42e422200bd590468219

  • SHA256

    cd8c25669902d522e8cfb50cbd19d2080223e6d93c4e43d13ae13f1801d89214

  • SHA512

    a5e08e998768c9b83d4809a8148496ed8b5f6d0c3738e3916078ee68b670aeb554ed4cccb0c137d7b12b90fab20fd5caa98f5c0efe8f5792a2d61dde877ce818

  • SSDEEP

    12288:0X0pxyV36Di8BtLeX2BJ36912QcAo2o+vaLmW01MFoHxdehiooVa741jlDuVQeeg:CBFKlBJ3PQcF2SLmWAMFcbe2ubz

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • Detect packed .NET executables. Mostly AgentTeslaV4. 1 IoCs
  • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 1 IoCs
  • Detects executables referencing Windows vault credential objects. Observed in infostealers 1 IoCs
  • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 1 IoCs
  • Detects executables referencing many email and collaboration clients. Observed in information stealers 1 IoCs
  • Detects executables referencing many file transfer clients. Observed in information stealers 1 IoCs
  • 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.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • 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 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • 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).

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cd8c25669902d522e8cfb50cbd19d2080223e6d93c4e43d13ae13f1801d89214.exe
    "C:\Users\Admin\AppData\Local\Temp\cd8c25669902d522e8cfb50cbd19d2080223e6d93c4e43d13ae13f1801d89214.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1964
    • 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\cd8c25669902d522e8cfb50cbd19d2080223e6d93c4e43d13ae13f1801d89214.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2576
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\wRHmNgtLqfNjD.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2692
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\wRHmNgtLqfNjD" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9BA4.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1212
    • C:\Users\Admin\AppData\Local\Temp\cd8c25669902d522e8cfb50cbd19d2080223e6d93c4e43d13ae13f1801d89214.exe
      "C:\Users\Admin\AppData\Local\Temp\cd8c25669902d522e8cfb50cbd19d2080223e6d93c4e43d13ae13f1801d89214.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1076

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\cd8c25669902d522e8cfb50cbd19d2080223e6d93c4e43d13ae13f1801d89214.exe.log

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_tc5b2ern.xpr.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmp9BA4.tmp

    Filesize

    1KB

    MD5

    7363e2c7b50d1738ac8474fafee96b27

    SHA1

    f3a341f92ca9cee18c60aa01eec85c4d205e39e7

    SHA256

    b5b42624c9065a361ad67f5be14d297ba23d60c587e8d9823a4a548c560aeae9

    SHA512

    1b98bad7417306ceec71a019b4ff6703e95028fa746660a7411a2af1579c512f424922ddf7285fd5d4decfaeb62aa19badfb4bb8f0b197721a2163b575385668

  • memory/1076-86-0x00000000067D0000-0x0000000006820000-memory.dmp

    Filesize

    320KB

  • memory/1076-22-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/1964-4-0x0000000005820000-0x000000000582A000-memory.dmp

    Filesize

    40KB

  • memory/1964-6-0x00000000070A0000-0x00000000070C2000-memory.dmp

    Filesize

    136KB

  • memory/1964-7-0x00000000030C0000-0x00000000030D0000-memory.dmp

    Filesize

    64KB

  • memory/1964-8-0x00000000098F0000-0x0000000009976000-memory.dmp

    Filesize

    536KB

  • memory/1964-9-0x000000000CA10000-0x000000000CAAC000-memory.dmp

    Filesize

    624KB

  • memory/1964-5-0x00000000743C0000-0x0000000074B70000-memory.dmp

    Filesize

    7.7MB

  • memory/1964-38-0x00000000743C0000-0x0000000074B70000-memory.dmp

    Filesize

    7.7MB

  • memory/1964-3-0x0000000005840000-0x00000000058D2000-memory.dmp

    Filesize

    584KB

  • memory/1964-2-0x0000000005DF0000-0x0000000006394000-memory.dmp

    Filesize

    5.6MB

  • memory/1964-0-0x00000000743CE000-0x00000000743CF000-memory.dmp

    Filesize

    4KB

  • memory/1964-1-0x0000000000D50000-0x0000000000E08000-memory.dmp

    Filesize

    736KB

  • memory/2576-37-0x0000000005440000-0x0000000005794000-memory.dmp

    Filesize

    3.3MB

  • memory/2576-78-0x0000000006F50000-0x0000000006F5E000-memory.dmp

    Filesize

    56KB

  • memory/2576-14-0x0000000000C40000-0x0000000000C76000-memory.dmp

    Filesize

    216KB

  • memory/2576-27-0x00000000053D0000-0x0000000005436000-memory.dmp

    Filesize

    408KB

  • memory/2576-26-0x0000000005360000-0x00000000053C6000-memory.dmp

    Filesize

    408KB

  • memory/2576-84-0x00000000743C0000-0x0000000074B70000-memory.dmp

    Filesize

    7.7MB

  • memory/2576-80-0x0000000007060000-0x000000000707A000-memory.dmp

    Filesize

    104KB

  • memory/2576-17-0x00000000743C0000-0x0000000074B70000-memory.dmp

    Filesize

    7.7MB

  • memory/2576-16-0x00000000743C0000-0x0000000074B70000-memory.dmp

    Filesize

    7.7MB

  • memory/2576-15-0x0000000004CC0000-0x00000000052E8000-memory.dmp

    Filesize

    6.2MB

  • memory/2576-48-0x00000000059F0000-0x0000000005A0E000-memory.dmp

    Filesize

    120KB

  • memory/2576-49-0x0000000005FA0000-0x0000000005FEC000-memory.dmp

    Filesize

    304KB

  • memory/2576-21-0x0000000004C20000-0x0000000004C42000-memory.dmp

    Filesize

    136KB

  • memory/2576-75-0x0000000006D90000-0x0000000006D9A000-memory.dmp

    Filesize

    40KB

  • memory/2576-74-0x0000000006D20000-0x0000000006D3A000-memory.dmp

    Filesize

    104KB

  • memory/2576-73-0x0000000007360000-0x00000000079DA000-memory.dmp

    Filesize

    6.5MB

  • memory/2576-63-0x0000000074C70000-0x0000000074CBC000-memory.dmp

    Filesize

    304KB

  • memory/2692-62-0x0000000007830000-0x00000000078D3000-memory.dmp

    Filesize

    652KB

  • memory/2692-50-0x00000000077D0000-0x0000000007802000-memory.dmp

    Filesize

    200KB

  • memory/2692-61-0x0000000007810000-0x000000000782E000-memory.dmp

    Filesize

    120KB

  • memory/2692-76-0x0000000007BE0000-0x0000000007C76000-memory.dmp

    Filesize

    600KB

  • memory/2692-77-0x0000000007B60000-0x0000000007B71000-memory.dmp

    Filesize

    68KB

  • memory/2692-51-0x0000000074C70000-0x0000000074CBC000-memory.dmp

    Filesize

    304KB

  • memory/2692-79-0x0000000007BA0000-0x0000000007BB4000-memory.dmp

    Filesize

    80KB

  • memory/2692-18-0x00000000743C0000-0x0000000074B70000-memory.dmp

    Filesize

    7.7MB

  • memory/2692-81-0x0000000007C80000-0x0000000007C88000-memory.dmp

    Filesize

    32KB

  • memory/2692-20-0x00000000743C0000-0x0000000074B70000-memory.dmp

    Filesize

    7.7MB

  • memory/2692-85-0x00000000743C0000-0x0000000074B70000-memory.dmp

    Filesize

    7.7MB

  • memory/2692-23-0x00000000743C0000-0x0000000074B70000-memory.dmp

    Filesize

    7.7MB