Analysis

  • max time kernel
    119s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20231023-en
  • resource tags

    arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
  • submitted
    07-12-2023 10:40

General

  • Target

    Balance invoice.exe

  • Size

    665KB

  • MD5

    96f35afff27509e6f78a8add621120a7

  • SHA1

    1b095ff5a3ca286029c72dca0bdca94eeffac305

  • SHA256

    ba5b23fdbec77442d3d5e9e87ea46dba8ce7df395fa5668edabe9be96eebae10

  • SHA512

    c27e90ce2e782f7a8dc3923e324aa654d9cd68554214438b9680003f98d1b0f9288cb7b2c601ccc084a82aa1db0e30ab89e485361c84e1b5521d13c9911fb6b2

  • SSDEEP

    12288:Aqc3+GCueH5qNvmL3z8pucAmKE4uqSAs1xVHel9C+0RU2IWUkRmLhR:A/uG2qc36uuKEBPNHelY+0pzNmz

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • 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 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Balance invoice.exe
    "C:\Users\Admin\AppData\Local\Temp\Balance invoice.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1188
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\AiCuUAmhRTLtO.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2988
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\AiCuUAmhRTLtO" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE1C7.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2584
    • C:\Users\Admin\AppData\Local\Temp\Balance invoice.exe
      "C:\Users\Admin\AppData\Local\Temp\Balance invoice.exe"
      2⤵
        PID:2580

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmpE1C7.tmp

      Filesize

      1KB

      MD5

      aa7a30c4bdaf9ec03c2936ecd26791dc

      SHA1

      f1393d193e5484acc9856b6d7cb9e53828d64ea5

      SHA256

      b16d055dfd1ef26fe40186986069c84628fdad22e7423bf3b0321bb53cced699

      SHA512

      51ddd94dd9b7c0047a8425f3415a8bb31c8d580f96f0141c275e84ac040b0a3cf3107f82148f2b6addc15701c8a4a1793718d0c375d672d7f1f8142107cb5c28

    • memory/1188-22-0x0000000074530000-0x0000000074C1E000-memory.dmp

      Filesize

      6.9MB

    • memory/1188-1-0x0000000074530000-0x0000000074C1E000-memory.dmp

      Filesize

      6.9MB

    • memory/1188-2-0x00000000049D0000-0x0000000004A10000-memory.dmp

      Filesize

      256KB

    • memory/1188-3-0x00000000004F0000-0x000000000050A000-memory.dmp

      Filesize

      104KB

    • memory/1188-4-0x0000000000510000-0x0000000000518000-memory.dmp

      Filesize

      32KB

    • memory/1188-5-0x0000000000520000-0x000000000052A000-memory.dmp

      Filesize

      40KB

    • memory/1188-6-0x0000000004950000-0x00000000049BA000-memory.dmp

      Filesize

      424KB

    • memory/1188-0-0x0000000000F40000-0x0000000000FEC000-memory.dmp

      Filesize

      688KB

    • memory/1188-24-0x00000000049D0000-0x0000000004A10000-memory.dmp

      Filesize

      256KB

    • memory/2580-12-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/2580-16-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/2580-14-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/2988-20-0x000000006EB10000-0x000000006F0BB000-memory.dmp

      Filesize

      5.7MB

    • memory/2988-21-0x000000006EB10000-0x000000006F0BB000-memory.dmp

      Filesize

      5.7MB

    • memory/2988-23-0x0000000002670000-0x00000000026B0000-memory.dmp

      Filesize

      256KB

    • memory/2988-25-0x000000006EB10000-0x000000006F0BB000-memory.dmp

      Filesize

      5.7MB