Analysis

  • max time kernel
    123s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    11-05-2021 14:03

General

  • Target

    ABSA POP.exe

  • Size

    916KB

  • MD5

    0266f5352db7db41d66942cb8fea548e

  • SHA1

    94facfb7e00854ef5ebb5578f2931f97e1e3afbd

  • SHA256

    9719ef0c13fb328372e4037db03bb12d16cc226e2a0a8c15e0622e2d610ff017

  • SHA512

    3b21635a1a2c2bcb0190ce9885a2b35a6107686c0c875ead876f235675296d5fde2b9d227eb310722bd5384e52fa0cc961362b64ac168d451a62b7c83a95c716

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.foodurway.com.au
  • Port:
    587
  • Username:
    admin@foodurway.com.au
  • Password:
    Island@1981$

Signatures

  • AgentTesla

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

  • AgentTesla Payload 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ABSA POP.exe
    "C:\Users\Admin\AppData\Local\Temp\ABSA POP.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1240
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\hehlHeKOkmmW" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA67C.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:336
    • C:\Users\Admin\AppData\Local\Temp\ABSA POP.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1476
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
        dw20.exe -x -s 520
        3⤵
          PID:916

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Execution

    Scheduled Task

    1
    T1053

    Persistence

    Scheduled Task

    1
    T1053

    Privilege Escalation

    Scheduled Task

    1
    T1053

    Discovery

    System Information Discovery

    1
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmpA67C.tmp
      MD5

      b21b27c86fef0edb9d3e0a5f5319c552

      SHA1

      f46f8b21721246a0f87dcdd2dcccd908925178eb

      SHA256

      4e474f33466c54444e4ad2a83d393b09ff7ff2ad2511346c1511c77cc431d180

      SHA512

      9c64b0caeda775b0afaa786ce5c9bdd033921c0c3d6ac71a367541f912435fa0d7e93d953ec13436ee09c8708aa9fd347ba3643cd416d49fef3cbd8014473748

    • memory/336-61-0x0000000000000000-mapping.dmp
    • memory/916-68-0x0000000000000000-mapping.dmp
    • memory/916-70-0x0000000000560000-0x0000000000561000-memory.dmp
      Filesize

      4KB

    • memory/1240-59-0x00000000752B1000-0x00000000752B3000-memory.dmp
      Filesize

      8KB

    • memory/1240-60-0x00000000003A0000-0x00000000003A1000-memory.dmp
      Filesize

      4KB

    • memory/1240-66-0x00000000003A1000-0x00000000003A2000-memory.dmp
      Filesize

      4KB

    • memory/1476-63-0x0000000000400000-0x000000000043C000-memory.dmp
      Filesize

      240KB

    • memory/1476-64-0x00000000004379AE-mapping.dmp
    • memory/1476-67-0x0000000000EF0000-0x0000000000EF1000-memory.dmp
      Filesize

      4KB