Analysis

  • max time kernel
    70s
  • max time network
    121s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    07-10-2021 04:38

General

  • Target

    Products Details and Order reference.exe

  • Size

    591KB

  • MD5

    4107bb08f0c20c1bafd7839f1bf77a8b

  • SHA1

    ba4daabff9037990d45c4cfafe4690a7fe2ddbfb

  • SHA256

    dd182afe8c89ecfb8d2d449f5e700d7ac09b979315238abf0cee1cdd65d6c27f

  • SHA512

    88b10d5719e82d69d80e2e9264b0e0c86bba686d127fcd7366fb0be5c71846c8a5013b4a6c96ed750242a9f88e5bd3504e9705580024ecf1106eea9b9b7dfe60

Malware Config

Extracted

Family

matiex

Credentials

  • Protocol:
    smtp
  • Host:
    mail.thts.vn
  • Port:
    25
  • Username:
    [email protected]
  • Password:
    123luongngan1989

Signatures

  • Matiex

    Matiex is a keylogger and infostealer first seen in July 2020.

  • Matiex Main Payload 2 IoCs
  • Looks up external IP address via web service 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Program crash 1 IoCs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Modifies registry class 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Products Details and Order reference.exe
    "C:\Users\Admin\AppData\Local\Temp\Products Details and Order reference.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:632
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\UKEBHvwzzTPD" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2C84.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4080
    • C:\Users\Admin\AppData\Local\Temp\Products Details and Order reference.exe
      "C:\Users\Admin\AppData\Local\Temp\Products Details and Order reference.exe"
      2⤵
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      PID:3424
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3424 -s 2212
        3⤵
        • Program crash
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:688

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Products Details and Order reference.exe.log

    MD5

    0c2899d7c6746f42d5bbe088c777f94c

    SHA1

    622f66c5f7a3c91b28a9f43ce7c6cabadbf514f1

    SHA256

    5b0b99740cadaeff7b9891136644b396941547e20cc7eea646560d0dad5a5458

    SHA512

    ab7a3409ed4b6ca00358330a3aa4ef6de7d81eb21a5e24bb629ef6a7c7c4e2a70ca3accfbc989ed6e495fdb8eb6203a26d6f2a37b2a5809af4276af375b49078

  • memory/632-121-0x00000000053A0000-0x00000000053AA000-memory.dmp

    Filesize

    40KB

  • memory/632-117-0x00000000051F0000-0x00000000051F1000-memory.dmp

    Filesize

    4KB

  • memory/632-118-0x0000000005150000-0x000000000564E000-memory.dmp

    Filesize

    5.0MB

  • memory/632-119-0x0000000005360000-0x0000000005361000-memory.dmp

    Filesize

    4KB

  • memory/632-120-0x0000000005B50000-0x0000000005B51000-memory.dmp

    Filesize

    4KB

  • memory/632-114-0x0000000000920000-0x0000000000921000-memory.dmp

    Filesize

    4KB

  • memory/632-122-0x0000000006150000-0x00000000061E4000-memory.dmp

    Filesize

    592KB

  • memory/632-116-0x0000000005650000-0x0000000005651000-memory.dmp

    Filesize

    4KB

  • memory/3424-124-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/3424-125-0x0000000000472BFE-mapping.dmp

  • memory/3424-130-0x0000000004DF0000-0x0000000004DF1000-memory.dmp

    Filesize

    4KB

  • memory/3424-131-0x00000000050A0000-0x00000000050A1000-memory.dmp

    Filesize

    4KB

  • memory/4080-123-0x0000000000000000-mapping.dmp