Analysis

  • max time kernel
    125s
  • max time network
    122s
  • platform
    windows10_x64
  • resource
    win10-en-20211014
  • submitted
    22-10-2021 04:17

General

  • Target

    order as urgent.exe

  • Size

    539KB

  • MD5

    640671d4c545a95c5ee05c5758f6a08f

  • SHA1

    8bb92184556b3e27a632db6969e889d91e5c82f5

  • SHA256

    3d5648199e299365ade049035e5bcd08f441b4c02591b9240a6713dd6aedd6f2

  • SHA512

    0f4d01dd6d419ca1c93381254453f02c471636149cf63649ea07ce8a876e8a2742db0741da0a2d2e01007ff5070b4c2c99b39972d200837562cf8c171439f89b

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.privateemail.com
  • Port:
    587
  • Username:
    naki1@china-tianli.co
  • Password:
    mmm777

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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 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 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\order as urgent.exe
    "C:\Users\Admin\AppData\Local\Temp\order as urgent.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2624
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\order as urgent.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4084
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\Qmzkmcgtxzkh" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3804.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1500
    • C:\Users\Admin\AppData\Local\Temp\order as urgent.exe
      "C:\Users\Admin\AppData\Local\Temp\order as urgent.exe"
      2⤵
        PID:1436
      • C:\Users\Admin\AppData\Local\Temp\order as urgent.exe
        "C:\Users\Admin\AppData\Local\Temp\order as urgent.exe"
        2⤵
        • Accesses Microsoft Outlook profiles
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • outlook_office_path
        • outlook_win_path
        PID:3196

    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

    Email Collection

    1
    T1114

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\order as urgent.exe.log
      MD5

      0c2899d7c6746f42d5bbe088c777f94c

      SHA1

      622f66c5f7a3c91b28a9f43ce7c6cabadbf514f1

      SHA256

      5b0b99740cadaeff7b9891136644b396941547e20cc7eea646560d0dad5a5458

      SHA512

      ab7a3409ed4b6ca00358330a3aa4ef6de7d81eb21a5e24bb629ef6a7c7c4e2a70ca3accfbc989ed6e495fdb8eb6203a26d6f2a37b2a5809af4276af375b49078

    • memory/1500-129-0x0000000000000000-mapping.dmp
    • memory/2624-122-0x0000000009600000-0x0000000009601000-memory.dmp
      Filesize

      4KB

    • memory/2624-119-0x0000000005840000-0x00000000058D2000-memory.dmp
      Filesize

      584KB

    • memory/2624-120-0x0000000005A60000-0x0000000005A61000-memory.dmp
      Filesize

      4KB

    • memory/2624-121-0x00000000066D0000-0x00000000066D7000-memory.dmp
      Filesize

      28KB

    • memory/2624-118-0x00000000058E0000-0x00000000058E1000-memory.dmp
      Filesize

      4KB

    • memory/2624-123-0x00000000096A0000-0x00000000096F8000-memory.dmp
      Filesize

      352KB

    • memory/2624-115-0x0000000000EE0000-0x0000000000EE1000-memory.dmp
      Filesize

      4KB

    • memory/2624-117-0x0000000005E90000-0x0000000005E91000-memory.dmp
      Filesize

      4KB

    • memory/3196-138-0x00000000053E0000-0x00000000058DE000-memory.dmp
      Filesize

      5.0MB

    • memory/3196-130-0x0000000000400000-0x000000000043C000-memory.dmp
      Filesize

      240KB

    • memory/3196-131-0x000000000043782E-mapping.dmp
    • memory/4084-124-0x0000000000000000-mapping.dmp
    • memory/4084-144-0x0000000007D90000-0x0000000007D91000-memory.dmp
      Filesize

      4KB

    • memory/4084-127-0x0000000006EE0000-0x0000000006EE1000-memory.dmp
      Filesize

      4KB

    • memory/4084-126-0x0000000004A50000-0x0000000004A51000-memory.dmp
      Filesize

      4KB

    • memory/4084-136-0x0000000006F20000-0x0000000006F21000-memory.dmp
      Filesize

      4KB

    • memory/4084-137-0x0000000006F22000-0x0000000006F23000-memory.dmp
      Filesize

      4KB

    • memory/4084-125-0x0000000004A50000-0x0000000004A51000-memory.dmp
      Filesize

      4KB

    • memory/4084-140-0x0000000007C00000-0x0000000007C01000-memory.dmp
      Filesize

      4KB

    • memory/4084-141-0x0000000007CA0000-0x0000000007CA1000-memory.dmp
      Filesize

      4KB

    • memory/4084-142-0x0000000007F60000-0x0000000007F61000-memory.dmp
      Filesize

      4KB

    • memory/4084-143-0x0000000007FE0000-0x0000000007FE1000-memory.dmp
      Filesize

      4KB

    • memory/4084-128-0x0000000007560000-0x0000000007561000-memory.dmp
      Filesize

      4KB

    • memory/4084-145-0x0000000008890000-0x0000000008891000-memory.dmp
      Filesize

      4KB

    • memory/4084-146-0x0000000008680000-0x0000000008681000-memory.dmp
      Filesize

      4KB

    • memory/4084-147-0x0000000004A50000-0x0000000004A51000-memory.dmp
      Filesize

      4KB

    • memory/4084-154-0x0000000009420000-0x0000000009453000-memory.dmp
      Filesize

      204KB

    • memory/4084-161-0x0000000009400000-0x0000000009401000-memory.dmp
      Filesize

      4KB

    • memory/4084-166-0x0000000009470000-0x0000000009471000-memory.dmp
      Filesize

      4KB

    • memory/4084-167-0x000000007F850000-0x000000007F851000-memory.dmp
      Filesize

      4KB

    • memory/4084-168-0x0000000006F23000-0x0000000006F24000-memory.dmp
      Filesize

      4KB

    • memory/4084-169-0x0000000009990000-0x0000000009991000-memory.dmp
      Filesize

      4KB