Analysis

  • max time kernel
    137s
  • max time network
    32s
  • platform
    windows7_x64
  • resource
    win7v200430
  • submitted
    10-07-2020 06:59

General

  • Target

    Order inquiry PO.exe

  • Size

    513KB

  • MD5

    611cc8fb19b8fa6385e76a0095f227f1

  • SHA1

    83b6ed1648133a9e4063942393b5162ee582a804

  • SHA256

    cbbdd903cc05a12c3fd5bcf2ab1a651800245e7003fcf6df5a1a7b1c362cf96c

  • SHA512

    38ee2fb0949cc69b0ec18ce3f66410380d2e0f31c0fea96d3b5322c8ee84b42cd4f12f628aabed1b8a2dc595d30919d4e58999e34f4169979f5a8f6c90300f6e

Malware Config

Signatures

  • AgentTesla

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

  • AgentTesla Payload 4 IoCs
  • 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.

  • 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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Order inquiry PO.exe
    "C:\Users\Admin\AppData\Local\Temp\Order inquiry PO.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1400
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\hbffmQcfaPA" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5BF4.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1816
    • C:\Users\Admin\AppData\Local\Temp\Order inquiry PO.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1832

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Credential Access

Credentials in Files

3
T1081

Discovery

System Information Discovery

1
T1082

Collection

Data from Local System

3
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp5BF4.tmp
    MD5

    f72b04e895a2b8aebed10a6369efd1fa

    SHA1

    cef9f412942dfb061ef3b88fbbab6db9244a5ea2

    SHA256

    495961547e7f853d2b95e85780809ff8d340476f68a0e286e71ad801867b2bea

    SHA512

    69d30d62aca4037f1ad843b5034035d8c83366b1c51b30054bb428013890b88a1448c2d0eff025253c4faba8f70c19692b17223727f19b70b6df5728120cd4ec

  • memory/1400-1-0x0000000000000000-0x0000000000000000-disk.dmp
  • memory/1816-2-0x0000000000000000-mapping.dmp
  • memory/1832-4-0x0000000000400000-0x0000000000456000-memory.dmp
    Filesize

    344KB

  • memory/1832-5-0x00000000004507AE-mapping.dmp
  • memory/1832-6-0x0000000000400000-0x0000000000456000-memory.dmp
    Filesize

    344KB

  • memory/1832-7-0x0000000000400000-0x0000000000456000-memory.dmp
    Filesize

    344KB