Analysis

  • max time kernel
    69s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-09-2022 13:53

General

  • Target

    INQUIRY.exe

  • Size

    987KB

  • MD5

    e5265906364b50b3c76474eccb791319

  • SHA1

    c4d7fb4ca637a7853e32d2dca8bb8f1ee953e8ad

  • SHA256

    92d2a5ac1445f1cf95317d89b5b1649246b56e328894b584523e690def1bc570

  • SHA512

    523c0c312512bd2d38e5388b8898d1b9b04fa7aa72ee1d4f311ea4b4c2f53678c4a03d8df3db6564228a720a00e996d41b63624bd51cd14f9d2e5679aa6a1c75

  • SSDEEP

    12288:kgqC2J6e2bju7kXl9FWg3qzwzFL8O+TpGxzjUR56J2apsADqjJ5nGmwl9cffomoe:kg52sfikVSkq67tXK5SWjrGXu

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.sseximclearing.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Ssxm@9854

Signatures

  • AgentTesla

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

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\INQUIRY.exe
    "C:\Users\Admin\AppData\Local\Temp\INQUIRY.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3192
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\lxtdKYnImsS" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD8F0.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3676
    • C:\Users\Admin\AppData\Local\Temp\INQUIRY.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:5016

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\INQUIRY.exe.log

    Filesize

    1KB

    MD5

    84e77a587d94307c0ac1357eb4d3d46f

    SHA1

    83cc900f9401f43d181207d64c5adba7a85edc1e

    SHA256

    e16024b092a026a9dc00df69d4b9bbcab7b2dc178dc5291fc308a1abc9304a99

    SHA512

    aefb5c62200b3ed97718d20a89990954d4d8acdc0a6a73c5a420f1bba619cb79e70c2cd0a579b9f52dc6b09e1de2cea6cd6cac4376cfee92d94e2c01d310f691

  • C:\Users\Admin\AppData\Local\Temp\tmpD8F0.tmp

    Filesize

    1KB

    MD5

    fe52bd2304b62962fe88da666a979424

    SHA1

    2d435bcf2b4f837730f62e5b04da6789e8c3d667

    SHA256

    019d8912718fd079bff080863be1fe8a59e50b0d7472e5d67c5873d1799449fc

    SHA512

    44471b0add1df4c84295da175deb4ba8f0a8e3fe984f9924e608e396695fe3b4ca53786ef4ffc60f930b3a63a9938bcfeba6bbbd7f783f7b76aa4c45d8cd2fab

  • memory/3192-132-0x0000000000A80000-0x0000000000B7C000-memory.dmp

    Filesize

    1008KB

  • memory/3192-133-0x0000000005A50000-0x0000000005FF4000-memory.dmp

    Filesize

    5.6MB

  • memory/3192-134-0x0000000005540000-0x00000000055D2000-memory.dmp

    Filesize

    584KB

  • memory/3192-135-0x00000000055E0000-0x000000000567C000-memory.dmp

    Filesize

    624KB

  • memory/3192-136-0x0000000005520000-0x000000000552A000-memory.dmp

    Filesize

    40KB

  • memory/3676-137-0x0000000000000000-mapping.dmp

  • memory/5016-139-0x0000000000000000-mapping.dmp

  • memory/5016-140-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/5016-142-0x00000000065D0000-0x0000000006636000-memory.dmp

    Filesize

    408KB

  • memory/5016-143-0x0000000006BE0000-0x0000000006C30000-memory.dmp

    Filesize

    320KB