Analysis

  • max time kernel
    140s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-07-2024 03:52

General

  • Target

    LIXVoWXPPCyc5Jy.exe

  • Size

    2.5MB

  • MD5

    cef6d09b553a93f81942da9838b1ac57

  • SHA1

    c32fbf54b54dadabbae600645c417c163234daf5

  • SHA256

    d9aa21479a1a55d57839aee6310cd6853b2bc5215337aa72316a96f7be7ff3e5

  • SHA512

    05ed612b7d2e14b034a391d45b578e0eda2b52be3b8eeccb3534872de61d05d95b4b3e7f10bfa01ef6913d29a24404c8cf635c804f9fbe2820321078d1007928

  • SSDEEP

    49152:SoSto6fCl0KeaNs68/bXvlM28MTVTc6hhCkJNV8VicCFiO1:S9+0P9/rBRVTpIkJN+YcLO

Score
10/10

Malware Config

Extracted

Family

bitrat

Version

1.34

C2

curtisusa.hopto.org:5215

Attributes
  • communication_password

    ee342c2505c08512ed898d3855498f1a

  • tor_process

    tor

Signatures

  • BitRAT

    BitRAT is a remote access tool written in C++ and uses leaked source code from other families.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • UPX packed file 20 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\LIXVoWXPPCyc5Jy.exe
    "C:\Users\Admin\AppData\Local\Temp\LIXVoWXPPCyc5Jy.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:628
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\AGbGTkAzcl" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBAEE.tmp"
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:1308
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
      "{path}"
      2⤵
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2920
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=1308,i,6593821857742176458,13646536021844995125,262144 --variations-seed-version --mojo-platform-channel-handle=4016 /prefetch:8
    1⤵
      PID:4304

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      1KB

      MD5

      6e780f5c109f2c2f161bbf1734f4a470

      SHA1

      95ece58d142f4180079ed10f5e2aa2f223c23283

      SHA256

      7c172ac23493acab187508b823385b45d354927456260e0b23b37aea5aa9153e

      SHA512

      715fd527c286c82a80025fc0dde9f1a73a0f0523778d0babb9d915e319e423d67c726a9737506da890d60da9c7afe530de6ed0696da9708974a3beed5240b71c

    • memory/628-16-0x0000000074650000-0x0000000074C01000-memory.dmp

      Filesize

      5.7MB

    • memory/628-1-0x0000000074650000-0x0000000074C01000-memory.dmp

      Filesize

      5.7MB

    • memory/628-2-0x0000000074650000-0x0000000074C01000-memory.dmp

      Filesize

      5.7MB

    • memory/628-3-0x0000000074652000-0x0000000074653000-memory.dmp

      Filesize

      4KB

    • memory/628-4-0x0000000074650000-0x0000000074C01000-memory.dmp

      Filesize

      5.7MB

    • memory/628-5-0x0000000074650000-0x0000000074C01000-memory.dmp

      Filesize

      5.7MB

    • memory/628-6-0x0000000074650000-0x0000000074C01000-memory.dmp

      Filesize

      5.7MB

    • memory/628-0-0x0000000074652000-0x0000000074653000-memory.dmp

      Filesize

      4KB

    • memory/2920-27-0x0000000000400000-0x00000000007E4000-memory.dmp

      Filesize

      3.9MB

    • memory/2920-31-0x0000000000400000-0x00000000007E4000-memory.dmp

      Filesize

      3.9MB

    • memory/2920-13-0x0000000000400000-0x00000000007E4000-memory.dmp

      Filesize

      3.9MB

    • memory/2920-10-0x0000000000400000-0x00000000007E4000-memory.dmp

      Filesize

      3.9MB

    • memory/2920-12-0x0000000000400000-0x00000000007E4000-memory.dmp

      Filesize

      3.9MB

    • memory/2920-18-0x0000000074370000-0x00000000743A9000-memory.dmp

      Filesize

      228KB

    • memory/2920-19-0x0000000000400000-0x00000000007E4000-memory.dmp

      Filesize

      3.9MB

    • memory/2920-25-0x0000000000400000-0x00000000007E4000-memory.dmp

      Filesize

      3.9MB

    • memory/2920-26-0x0000000074750000-0x0000000074789000-memory.dmp

      Filesize

      228KB

    • memory/2920-11-0x0000000000400000-0x00000000007E4000-memory.dmp

      Filesize

      3.9MB

    • memory/2920-28-0x0000000000400000-0x00000000007E4000-memory.dmp

      Filesize

      3.9MB

    • memory/2920-29-0x0000000074750000-0x0000000074789000-memory.dmp

      Filesize

      228KB

    • memory/2920-30-0x0000000000400000-0x00000000007E4000-memory.dmp

      Filesize

      3.9MB

    • memory/2920-14-0x0000000000400000-0x00000000007E4000-memory.dmp

      Filesize

      3.9MB

    • memory/2920-32-0x0000000000400000-0x00000000007E4000-memory.dmp

      Filesize

      3.9MB

    • memory/2920-33-0x0000000074750000-0x0000000074789000-memory.dmp

      Filesize

      228KB

    • memory/2920-34-0x0000000000400000-0x00000000007E4000-memory.dmp

      Filesize

      3.9MB

    • memory/2920-35-0x0000000000400000-0x00000000007E4000-memory.dmp

      Filesize

      3.9MB

    • memory/2920-36-0x0000000074750000-0x0000000074789000-memory.dmp

      Filesize

      228KB

    • memory/2920-38-0x0000000000400000-0x00000000007E4000-memory.dmp

      Filesize

      3.9MB

    • memory/2920-37-0x0000000000400000-0x00000000007E4000-memory.dmp

      Filesize

      3.9MB

    • memory/2920-39-0x0000000074750000-0x0000000074789000-memory.dmp

      Filesize

      228KB

    • memory/2920-40-0x0000000000400000-0x00000000007E4000-memory.dmp

      Filesize

      3.9MB

    • memory/2920-41-0x0000000000400000-0x00000000007E4000-memory.dmp

      Filesize

      3.9MB

    • memory/2920-42-0x0000000074750000-0x0000000074789000-memory.dmp

      Filesize

      228KB

    • memory/2920-44-0x0000000000400000-0x00000000007E4000-memory.dmp

      Filesize

      3.9MB

    • memory/2920-43-0x0000000000400000-0x00000000007E4000-memory.dmp

      Filesize

      3.9MB

    • memory/2920-45-0x0000000074750000-0x0000000074789000-memory.dmp

      Filesize

      228KB