Analysis

  • max time kernel
    120s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    05-09-2024 13:22

General

  • Target

    Payment Slip -21501120100258.exe

  • Size

    689KB

  • MD5

    4204cc89996eedd07e48b855fdfdc773

  • SHA1

    30780fa47a2f022102755d4b33cf429d25a893bb

  • SHA256

    4c06d00bd2ccb64a93bb8019bbea91c83e4f6931d7c7fdc2469545a0a93a9c86

  • SHA512

    74eb0c8298d4c03a7958b00335ea9ec597499fa7682f61f659f0c5a0f68f1eb0270a4aa2133ecdcf431be28e42a02e6660053153141c798c942b1751209b9be3

  • SSDEEP

    12288:tRo1nSVygJA6psrecYWyiKRPTCHDP/8dlgTsL0czZgFwQLr0hKH:tRo1SVVAWs4riAPTCHTYggZgCq+K

Malware Config

Extracted

Family

agenttesla

Credentials

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 2 IoCs

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

  • 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.

  • 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 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Payment Slip -21501120100258.exe
    "C:\Users\Admin\AppData\Local\Temp\Payment Slip -21501120100258.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3052
    • 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\Payment Slip -21501120100258.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2736
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\VzxWktexVIFRzv.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2840
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\VzxWktexVIFRzv" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1AB2.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2332
    • C:\Users\Admin\AppData\Local\Temp\Payment Slip -21501120100258.exe
      "C:\Users\Admin\AppData\Local\Temp\Payment Slip -21501120100258.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1840

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp1AB2.tmp

    Filesize

    1KB

    MD5

    d787ccceb4ed16b92bbb3ca2caf34928

    SHA1

    b276a32c4cc239d766b83f969494dbdb81ee4c85

    SHA256

    01f66c9e803b551250911396fea11e0d9c315bc8d4df2425373ef030da804e9d

    SHA512

    cc8299fd3965c3c876f3a10ed17484cfdd21d83f6f5eabde861e7dd3bb9661bc1adf5045952737b5dad45a3d451b044342594cf588e159011ecf028f02ed44f6

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\IQW4KPSM9IORXEA5TBZW.temp

    Filesize

    7KB

    MD5

    c38d369bc42669c2d26b89ebb513db11

    SHA1

    352e7be6630b29b1ccdc2d36a49778b706fcdf77

    SHA256

    cd2e6b0b4b011df07a3fc0a74b0cd8f36ad38a2f50a353af7f1712c0e9a693a8

    SHA512

    1a9e98c8fc4026d3b69f046b1cd48705dff24b9b712ccbcfdf941201543c305c879cdaea78e59f6075f08a25f0d0e2c4a17dcf577a055acb50adfdc175b619a9

  • memory/1840-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1840-29-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/1840-19-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/1840-21-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/1840-23-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/1840-25-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/1840-28-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/1840-30-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/3052-6-0x0000000004D80000-0x0000000004E02000-memory.dmp

    Filesize

    520KB

  • memory/3052-1-0x0000000001130000-0x00000000011E2000-memory.dmp

    Filesize

    712KB

  • memory/3052-0-0x00000000741AE000-0x00000000741AF000-memory.dmp

    Filesize

    4KB

  • memory/3052-2-0x00000000741A0000-0x000000007488E000-memory.dmp

    Filesize

    6.9MB

  • memory/3052-3-0x00000000005F0000-0x0000000000608000-memory.dmp

    Filesize

    96KB

  • memory/3052-5-0x00000000741A0000-0x000000007488E000-memory.dmp

    Filesize

    6.9MB

  • memory/3052-4-0x00000000741AE000-0x00000000741AF000-memory.dmp

    Filesize

    4KB

  • memory/3052-31-0x00000000741A0000-0x000000007488E000-memory.dmp

    Filesize

    6.9MB