Analysis

  • max time kernel
    131s
  • max time network
    141s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    25-07-2024 01:15

General

  • Target

    13ae0240874eceb39e9dad22310e9a2539b602d12d570e80bce351cd36e10840.exe

  • Size

    1.2MB

  • MD5

    0c03d7dee077d930de9992b80d9a7e05

  • SHA1

    0a5132fb57ef3693456fce1b9fbf7f8e577de614

  • SHA256

    13ae0240874eceb39e9dad22310e9a2539b602d12d570e80bce351cd36e10840

  • SHA512

    d4a26767c13b5770617eed1d1e82f131383a24e92ee79d401e6b69e59adaf24f14f637581cc6915d580efa7da0e03bbdf702214f83abc841de1ae9d43f970c2b

  • SSDEEP

    24576:Am/4rEhEsy4u2ujupAlCna/4rZu3AssPjK1yCb4F5pHqLV3U:AmgAh44wjuu4agg+Pjky/Fbq

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot7390139954:AAFw-89dzufZnN9iQ-qMJ7xuGsXRrzvXAEI/

Signatures

  • AgentTesla

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

  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 2 IoCs
  • 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 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 10 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 20 IoCs
  • Suspicious use of AdjustPrivilegeToken 49 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 62 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\13ae0240874eceb39e9dad22310e9a2539b602d12d570e80bce351cd36e10840.exe
    "C:\Users\Admin\AppData\Local\Temp\13ae0240874eceb39e9dad22310e9a2539b602d12d570e80bce351cd36e10840.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2540
    • C:\Windows\system32\cmd.exe
      "cmd" /C wmic path win32_ComputerSystem get model
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2904
      • C:\Windows\System32\Wbem\WMIC.exe
        wmic path win32_ComputerSystem get model
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:628
    • C:\Users\Admin\AppData\Local\Temp\FjGyJuSuyI\file.exe
      "C:\Users\Admin\AppData\Local\Temp\FjGyJuSuyI\file.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2888
      • 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\FjGyJuSuyI\file.exe"
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2432
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\qsveNpVbKEJaZ.exe"
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2020
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\qsveNpVbKEJaZ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFEC9.tmp"
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2496
      • C:\Users\Admin\AppData\Local\Temp\FjGyJuSuyI\file.exe
        "C:\Users\Admin\AppData\Local\Temp\FjGyJuSuyI\file.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:1788
    • C:\Users\Admin\AppData\Local\Temp\kBvkuwqfixBp\System.exe
      "C:\Users\Admin\AppData\Local\Temp\kBvkuwqfixBp\System.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2748
      • 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\kBvkuwqfixBp\System.exe"
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1200
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\qunOOlTEYv.exe"
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2856
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\qunOOlTEYv" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE6A7.tmp"
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:1260
      • C:\Users\Admin\AppData\Local\Temp\kBvkuwqfixBp\System.exe
        "C:\Users\Admin\AppData\Local\Temp\kBvkuwqfixBp\System.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:2604
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /C TIMEOUT /T 3 && DEL /f "C:\Users\Admin\AppData\Local\Temp\13ae0240874eceb39e9dad22310e9a2539b602d12d570e80bce351cd36e10840.exe"
      2⤵
      • Deletes itself
      • Suspicious use of WriteProcessMemory
      PID:2364
      • C:\Windows\system32\timeout.exe
        TIMEOUT /T 3
        3⤵
        • Delays execution with timeout.exe
        PID:2128

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\FjGyJuSuyI\file.exe

    Filesize

    535KB

    MD5

    46a7e52b8d10eb83a8fec69f1fe7c4e8

    SHA1

    a422124f4147ce73ce256f21559ea78e81aabe02

    SHA256

    c00dfb151b814fa6b324455851deae1c67fa14625e8345cbcaf519a809e22027

    SHA512

    8accab80a407c0f0cb9f69b3cd72a445eab01898121e898532666a824fdb9000bc87eb36026c75c33d3c26b3215983ac07da79a5640cdd8a0dde1c55ffbcb9e8

  • C:\Users\Admin\AppData\Local\Temp\kBvkuwqfixBp\System.exe

    Filesize

    697KB

    MD5

    f74def3bfe7e320eaa41bc114a34c125

    SHA1

    460ccaf2f2f64ce3c851a384443f21adcd2b6880

    SHA256

    20593fe2c2402515d83befde3ee1521523f9cec459b39b014590299a713fe26d

    SHA512

    5721dfeaa8aa165591947c41f6f835de057b86e56ab7d057438b3e70fef7bd654bdc61fbae282da9d42e504ad2665ca6e48d87bda3ab80e8f30543808ea68929

  • C:\Users\Admin\AppData\Local\Temp\tmpE6A7.tmp

    Filesize

    1KB

    MD5

    5a63a90acf8319bdf20a2eec5ba14e3d

    SHA1

    64633dc24a023e3105eafe6f0051dd73e91e3275

    SHA256

    cb5944b17238c73ebfae6e09833cb0c48f49f6e8bc7b3716d90078623952bc97

    SHA512

    7a6d03a6a1f0b1a05283dd35450ebaf604f0f145228c44673f55ac1818e6c5e232acb88bf04704617813f5ed0ada5a3964d23ee1ee47b1983265d8dd6d5196f4

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

    Filesize

    7KB

    MD5

    aa46bcd8c221564c59b5888fcf8247d6

    SHA1

    d34ed44245b0ac5d9c035cbfceb9ee2615817b75

    SHA256

    a60fb9b9fdb21a403c70945e3a51a307d8a401a8dc1172411f7b56bd40aa4f0a

    SHA512

    71da503c337fe94726b065a28ff24e5147ba41379a166bc7442a8ca907ce66aea95d58b70e77b146263ce017178c3c09b01be80819c89bd9cba61bc250e80f24

  • memory/2540-0-0x000007FEF5FA3000-0x000007FEF5FA4000-memory.dmp

    Filesize

    4KB

  • memory/2540-1-0x00000000000B0000-0x00000000001EC000-memory.dmp

    Filesize

    1.2MB

  • memory/2604-45-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/2604-47-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/2604-50-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/2604-54-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/2604-41-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/2604-52-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/2604-43-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/2604-49-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2748-27-0x0000000004C00000-0x0000000004C86000-memory.dmp

    Filesize

    536KB

  • memory/2748-25-0x0000000001F10000-0x0000000001F1E000-memory.dmp

    Filesize

    56KB

  • memory/2748-24-0x0000000000670000-0x000000000067A000-memory.dmp

    Filesize

    40KB

  • memory/2748-22-0x0000000000540000-0x0000000000552000-memory.dmp

    Filesize

    72KB

  • memory/2748-20-0x00000000000B0000-0x0000000000164000-memory.dmp

    Filesize

    720KB

  • memory/2888-26-0x00000000021C0000-0x0000000002220000-memory.dmp

    Filesize

    384KB

  • memory/2888-23-0x0000000000260000-0x0000000000272000-memory.dmp

    Filesize

    72KB

  • memory/2888-21-0x00000000009A0000-0x0000000000A2C000-memory.dmp

    Filesize

    560KB