Analysis

  • max time kernel
    23s
  • max time network
    128s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    12-09-2024 06:28

General

  • Target

    DEMURRAGE INVOICE.exe

  • Size

    697KB

  • MD5

    26592310cd0668310fd082bdcbe67a34

  • SHA1

    ec06a6a20f0c2f21d44639915d415ad010cdd74f

  • SHA256

    09ff4bcebea6598159b1341704093ab1ff7e2a1eecd0cdc38cb865edb5a35b62

  • SHA512

    914437329e40b531f4f9d231cba77fff5549d724ef72c2788ebac3cfd3560b17c63cbd0e2018bfdb27d3e32eb509bbf767b8a2f1aeb833fd59568b86f6a3119a

  • SSDEEP

    12288:Gr2+Ub83qcHT4ix3dzjLx1F97kv/pg1Rac9Viwt5XHkB:MUbQ4ix3dzjLx1r7U/GWcniw5U

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5862304010:AAGELNW7Uh-qnFDDQucOIsNATlN1Btw8R-8/

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.

  • Looks up external IP address via web service 2 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).

  • 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 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\DEMURRAGE INVOICE.exe
    "C:\Users\Admin\AppData\Local\Temp\DEMURRAGE INVOICE.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1120
    • 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\DEMURRAGE INVOICE.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3040
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\rljoKaPjKnocuL.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2940
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\rljoKaPjKnocuL" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5928.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2792
    • C:\Users\Admin\AppData\Local\Temp\DEMURRAGE INVOICE.exe
      "C:\Users\Admin\AppData\Local\Temp\DEMURRAGE INVOICE.exe"
      2⤵
        PID:2632
      • C:\Users\Admin\AppData\Local\Temp\DEMURRAGE INVOICE.exe
        "C:\Users\Admin\AppData\Local\Temp\DEMURRAGE INVOICE.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2644

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmp5928.tmp

      Filesize

      1KB

      MD5

      4d28fd8ec2811bc69a9c94ba172facf2

      SHA1

      80b571eda21e272e4cda85243a367f81c8ab04b8

      SHA256

      edc4fe9ec4a019d700e6e473c79d39eb14f2f1a9bd7a20bc99b3e161813a3e04

      SHA512

      ffb6ae5b5778fc469aa79c415f7cbb70ff63bb8822de30ae3203b3889f50a294c2787d670ef3fcb679835d1b5cf9befce66dfbc8e6021ad860259a29966c04bf

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\FWBHXXQT1BPNG30S7IP5.temp

      Filesize

      7KB

      MD5

      674d7f318e746823a2a012b7da32891b

      SHA1

      6b52d754df1358f0d75677844c5c5e2efa874613

      SHA256

      f2243f7252d2c0c11ceacbf94e855e6caa5ed54f3b3f3a9b0e84c135fb1974e5

      SHA512

      14150763396c2c741b39915a13534dfb3951a2789d03ecc734e830237bfc745e5ab0ca680fa6e4ec2099a108c729520dc201e162bb374edc444251ff56708138

    • memory/1120-4-0x000000007401E000-0x000000007401F000-memory.dmp

      Filesize

      4KB

    • memory/1120-31-0x0000000074010000-0x00000000746FE000-memory.dmp

      Filesize

      6.9MB

    • memory/1120-0-0x000000007401E000-0x000000007401F000-memory.dmp

      Filesize

      4KB

    • memory/1120-5-0x0000000074010000-0x00000000746FE000-memory.dmp

      Filesize

      6.9MB

    • memory/1120-6-0x0000000005180000-0x0000000005202000-memory.dmp

      Filesize

      520KB

    • memory/1120-2-0x0000000074010000-0x00000000746FE000-memory.dmp

      Filesize

      6.9MB

    • memory/1120-1-0x0000000001100000-0x00000000011B4000-memory.dmp

      Filesize

      720KB

    • memory/1120-3-0x00000000003B0000-0x00000000003C0000-memory.dmp

      Filesize

      64KB

    • memory/2644-21-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/2644-30-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/2644-29-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/2644-28-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/2644-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2644-25-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/2644-23-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/2644-19-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB