Analysis

  • max time kernel
    118s
  • max time network
    136s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    22-05-2024 08:12

General

  • Target

    Wire Transfer Payment Copy #18-05-2024.exe

  • Size

    896KB

  • MD5

    f350551099a8fc532cb883bdc55e31bd

  • SHA1

    c757fbb281a8b883974740f6343244c54aa21c14

  • SHA256

    7a76e6536ba34a728e8b04a6cb20fae3b252edc0de2e7ffa1e95508194ccecb3

  • SHA512

    5dc9c5d1eb72e7060004b5415ce256a007d31c54fea1bc6d252e7680b14720e34cf53a7cabd0b49bef853f38a5e32e8f8fb5e7e38002b17a5d9bb98a94eb284e

  • SSDEEP

    24576:BRVAfJWtb3BE1lMAzY0O14gZlcT6+C1MGQvn:TDZBEEAE0a4OlKmM5vn

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • 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.

  • Looks up external IP address via web service 3 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 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Wire Transfer Payment Copy #18-05-2024.exe
    "C:\Users\Admin\AppData\Local\Temp\Wire Transfer Payment Copy #18-05-2024.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3060
    • 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\Wire Transfer Payment Copy #18-05-2024.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2036
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\KXKyzZjhF.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2168
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\KXKyzZjhF" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4450.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2152
    • C:\Users\Admin\AppData\Local\Temp\Wire Transfer Payment Copy #18-05-2024.exe
      "C:\Users\Admin\AppData\Local\Temp\Wire Transfer Payment Copy #18-05-2024.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2600

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp4450.tmp

    Filesize

    1KB

    MD5

    feddec72493f7710e750f628ee6618a4

    SHA1

    62949b4ad18260447d8fbde757c72c08e5d1ed50

    SHA256

    01ebd7d5db1671ff1d65d9ef9338e71d61d469498a6e59207a5e0b3225365432

    SHA512

    42f30c23880cf06e9264eb5931023335c9dc36f07f9b4d9549768ba5f860bca50e2b7ac688d945da5c36a494b4e7aaffcb8521b2de9bf147587680a24033e38d

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

    Filesize

    7KB

    MD5

    e761bb4a78dcff8152c2033725b265e5

    SHA1

    57517f5eff41bc2f31cd768888f52770767fa6c4

    SHA256

    8abb37131035bb3b1e9308f7a0b973c610a1e0eddb0ec771576ec7ecd8275313

    SHA512

    262f2ceaf920a9ea49180440efc92ff57e74f11ae3ba4cf010186c898e7136746fe3ee2d83d079d161a5f1318204dd73a8c961ce1654e7610e4fe546a95b26af

  • memory/2600-29-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2600-28-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2600-21-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2600-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2600-23-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2600-25-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2600-31-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2600-19-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/3060-6-0x0000000004E80000-0x0000000004F04000-memory.dmp

    Filesize

    528KB

  • memory/3060-1-0x0000000000E30000-0x0000000000F12000-memory.dmp

    Filesize

    904KB

  • memory/3060-0-0x000000007498E000-0x000000007498F000-memory.dmp

    Filesize

    4KB

  • memory/3060-2-0x0000000074980000-0x000000007506E000-memory.dmp

    Filesize

    6.9MB

  • memory/3060-3-0x0000000000310000-0x0000000000332000-memory.dmp

    Filesize

    136KB

  • memory/3060-5-0x00000000002C0000-0x00000000002D0000-memory.dmp

    Filesize

    64KB

  • memory/3060-4-0x0000000000280000-0x000000000028C000-memory.dmp

    Filesize

    48KB

  • memory/3060-32-0x0000000074980000-0x000000007506E000-memory.dmp

    Filesize

    6.9MB