Analysis

  • max time kernel
    124s
  • max time network
    161s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    24-05-2022 15:16

General

  • Target

    f077a7bf5d0dbaaaaf15017e15a73f1c5ee26539ad4ed3ab36d6d8efa1449eb4.exe

  • Size

    438KB

  • MD5

    2cc77413fab88c5dced00c17af2c07c7

  • SHA1

    39a57cdbf9ece7abef069fdb32323bc716bdacd6

  • SHA256

    f077a7bf5d0dbaaaaf15017e15a73f1c5ee26539ad4ed3ab36d6d8efa1449eb4

  • SHA512

    44aaa119a05559f65a04a0239f57fb83ce6c94f06caf0b5441cb7f5e3afb2bb175aedf8fdc7e74bd5497446fb0cdc5042db39e059777106d608cdd12584d9657

Score
10/10

Malware Config

Signatures

  • LimeRAT

    Simple yet powerful RAT for Windows machines written in .NET.

  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • 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 use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f077a7bf5d0dbaaaaf15017e15a73f1c5ee26539ad4ed3ab36d6d8efa1449eb4.exe
    "C:\Users\Admin\AppData\Local\Temp\f077a7bf5d0dbaaaaf15017e15a73f1c5ee26539ad4ed3ab36d6d8efa1449eb4.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4208
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /f /sc ONLOGON /RL HIGHEST /tn LimeRAT-Admin /tr "'C:\Users\Admin\AppData\Local\Temp\svchost.exe'"
      2⤵
      • Creates scheduled task(s)
      PID:1452
    • C:\Users\Admin\AppData\Local\Temp\svchost.exe
      "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:3820

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\svchost.exe

  • C:\Users\Admin\AppData\Local\Temp\svchost.exe

  • memory/1452-135-0x0000000000000000-mapping.dmp

  • memory/3820-136-0x0000000000000000-mapping.dmp

  • memory/4208-130-0x0000000000080000-0x00000000000F4000-memory.dmp

    Filesize

    464KB

  • memory/4208-131-0x0000000005140000-0x00000000056E4000-memory.dmp

    Filesize

    5.6MB

  • memory/4208-132-0x0000000004B90000-0x0000000004C2C000-memory.dmp

    Filesize

    624KB

  • memory/4208-133-0x00000000066F0000-0x0000000006756000-memory.dmp

    Filesize

    408KB

  • memory/4208-134-0x0000000005090000-0x0000000005122000-memory.dmp

    Filesize

    584KB