Analysis

  • max time kernel
    150s
  • max time network
    33s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    18-01-2021 18:18

General

  • Target

    New order.exe

  • Size

    1.4MB

  • MD5

    c5fa1332e42feaebcbcde1d3ce65b51f

  • SHA1

    497ed6891668ce32aa36341ba8487b7e633e94ee

  • SHA256

    828e23d2a1e4de67827b62b8c1fad396ebb7a1005b3137e686552e631957a70f

  • SHA512

    7cf2454d4107eb5ed3271ca136bc5c0a57c793d9ea764daf602494ab6526c7595d32117e9096669ea739a473c3e2de0beed0342c691ee708130fb922db4a8fb1

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.conceptair.co.za
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    #147info963#

Signatures

  • AgentTesla

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

  • AgentTesla Payload 3 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 4 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\New order.exe
    "C:\Users\Admin\AppData\Local\Temp\New order.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1068
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\AiczYpIdFXwZDr" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2617.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:756
    • C:\Users\Admin\AppData\Local\Temp\New order.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1472

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp2617.tmp

    MD5

    cfd249226df9a6c7b18dd6387e36ab1b

    SHA1

    c0e7e24674b598675462069478815af4583219d5

    SHA256

    906a3de22275d258a27269ee5e488cb6e8c4ac7ede71a9393c26c328bfe99435

    SHA512

    a3598e08daf1cb3e0e516029b8ed772368f36c8b56903497b94f273446c4bb4fc6dd64d23ad227e31c0f3ed3911e4c6e3bf906e0ecb0a16d35b8b7c6f026d8bc

  • memory/756-9-0x0000000000000000-mapping.dmp

  • memory/1068-6-0x0000000004CC0000-0x0000000004CC1000-memory.dmp

    Filesize

    4KB

  • memory/1068-2-0x0000000074710000-0x0000000074DFE000-memory.dmp

    Filesize

    6.9MB

  • memory/1068-7-0x00000000004B0000-0x00000000004BE000-memory.dmp

    Filesize

    56KB

  • memory/1068-8-0x0000000004B20000-0x0000000004B84000-memory.dmp

    Filesize

    400KB

  • memory/1068-5-0x0000000000AB0000-0x0000000000B26000-memory.dmp

    Filesize

    472KB

  • memory/1068-3-0x00000000013A0000-0x00000000013A1000-memory.dmp

    Filesize

    4KB

  • memory/1472-11-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1472-12-0x00000000004375AE-mapping.dmp

  • memory/1472-13-0x0000000074710000-0x0000000074DFE000-memory.dmp

    Filesize

    6.9MB

  • memory/1472-14-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1472-16-0x0000000000E80000-0x0000000000E81000-memory.dmp

    Filesize

    4KB