Analysis

  • max time kernel
    151s
  • max time network
    41s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    15-04-2022 01:03

General

  • Target

    c1353a19ab8fdea024ab88c43b3305e169ab791592b2a09821606eae3ed6a72c.exe

  • Size

    865KB

  • MD5

    684ab5df0b0647e7854f52a7391af236

  • SHA1

    aad4ce4f9dfa09516549fa679058a2145c73da2a

  • SHA256

    c1353a19ab8fdea024ab88c43b3305e169ab791592b2a09821606eae3ed6a72c

  • SHA512

    27667b4073d88bed64c94bc17202d4eaae8f60bbbe6a59baae0968a397acc6253c59153827c961520340be30ab66754e7f0fe7ac8cd5f29dd8417dad4c4c509d

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.ausvanlines.com.au
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    smith@222

Signatures

  • AgentTesla

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

  • AgentTesla Payload 6 IoCs
  • Adds Run key to start application 2 TTPs 1 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 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c1353a19ab8fdea024ab88c43b3305e169ab791592b2a09821606eae3ed6a72c.exe
    "C:\Users\Admin\AppData\Local\Temp\c1353a19ab8fdea024ab88c43b3305e169ab791592b2a09821606eae3ed6a72c.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:972
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\XePEnDJnRaRyGd" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC6C9.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1952
    • C:\Users\Admin\AppData\Local\Temp\c1353a19ab8fdea024ab88c43b3305e169ab791592b2a09821606eae3ed6a72c.exe
      "{path}"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1196

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpC6C9.tmp

    Filesize

    1KB

    MD5

    7ce8d9f988c0cd5aa4e48bfcaa5917f8

    SHA1

    9521e150dcee361b5dad5df34fe3fe49743dabe6

    SHA256

    1f74edf89513853544cf0d7aeffebd4e4a2c1698650e14a43a63954152ec1a11

    SHA512

    8be826d3993d8cea8f580e258f4b4e8fc8158443ee8862e4df96e550d665205bcd416ff1c58de1ebe25837ba5da5ab8339cc90fe206d0f327b4ebf74c93d7372

  • memory/972-55-0x0000000000470000-0x000000000048E000-memory.dmp

    Filesize

    120KB

  • memory/972-56-0x0000000005AC0000-0x0000000005B78000-memory.dmp

    Filesize

    736KB

  • memory/972-54-0x00000000012C0000-0x000000000139E000-memory.dmp

    Filesize

    888KB

  • memory/1196-63-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1196-59-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1196-60-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1196-62-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1196-64-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1196-67-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1196-69-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB