Analysis

  • max time kernel
    223s
  • max time network
    253s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-01-2024 20:34

General

  • Target

    49b2e2c622aed1aaccb8f17d500b7321.exe

  • Size

    2.6MB

  • MD5

    49b2e2c622aed1aaccb8f17d500b7321

  • SHA1

    a73b715a6ce39a6983c29765de0eef9156899ed3

  • SHA256

    08ef1a2643f2d97ea39aa628a6a56a1109db245ae5c795278b4529d9e2f4a4c7

  • SHA512

    0da166b392bcfe55c700a123414b03d706f5eb3c585e905f7db32b0db004f189c517f11ed343428ac92a9559538f05a2fb802fe5c0e210a8d233719c154c0328

  • SSDEEP

    49152:9cUUQTLnKiVql9Bs8dKj+LFh2Hs7VcsxL2QlAQjLGi/9JNIzg6:mwHs9s8lLFxfCQ2QjLH9uJ

Malware Config

Extracted

Family

bitrat

Version

1.38

C2

jocker02.linkpc.net:1337

Attributes
  • communication_password

    81dc9bdb52d04dc20036dbd8313ed055

  • tor_process

    tor

Signatures

  • BitRAT

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

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Drops desktop.ini file(s) 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\49b2e2c622aed1aaccb8f17d500b7321.exe
    "C:\Users\Admin\AppData\Local\Temp\49b2e2c622aed1aaccb8f17d500b7321.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Checks computer location settings
    • Drops desktop.ini file(s)
    • Suspicious use of SetThreadContext
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1152
    • C:\Users\Admin\AppData\Local\Temp\LjxfafwG2u3lPRqn.exe
      "C:\Users\Admin\AppData\Local\Temp\LjxfafwG2u3lPRqn.exe"
      2⤵
      • Executes dropped EXE
      PID:1728
    • C:\Users\Admin\AppData\Local\Temp\49b2e2c622aed1aaccb8f17d500b7321.exe
      "C:\Users\Admin\AppData\Local\Temp\49b2e2c622aed1aaccb8f17d500b7321.exe"
      2⤵
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2108
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1152 -s 1728
      2⤵
      • Program crash
      PID:3916
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 1152 -ip 1152
    1⤵
      PID:2300

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\LjxfafwG2u3lPRqn.exe
      Filesize

      300KB

      MD5

      95440e86695cfc0ba9a15d1563759839

      SHA1

      9e1148f6b5ccd08941a9a6cd9587b6f563f26262

      SHA256

      77b45ebb6a0fadbe2deaf8785cb0c354f801d5244e3d0fd12647f467b7cfbdeb

      SHA512

      2db531f0949f5e570cc5adfdb2fff3598995b03070471919c2bab998c9d6098d1177011f66969a235a995aaec2a6f267100f69b0d7883aa109f9c2859e8285a1

    • memory/1152-0-0x0000000074810000-0x0000000074DC1000-memory.dmp
      Filesize

      5.7MB

    • memory/1152-1-0x0000000074810000-0x0000000074DC1000-memory.dmp
      Filesize

      5.7MB

    • memory/1152-2-0x00000000015A0000-0x00000000015B0000-memory.dmp
      Filesize

      64KB

    • memory/1152-5-0x0000000074810000-0x0000000074DC1000-memory.dmp
      Filesize

      5.7MB

    • memory/1152-6-0x0000000074810000-0x0000000074DC1000-memory.dmp
      Filesize

      5.7MB

    • memory/1152-39-0x0000000074810000-0x0000000074DC1000-memory.dmp
      Filesize

      5.7MB

    • memory/2108-26-0x0000000000400000-0x00000000007CE000-memory.dmp
      Filesize

      3.8MB

    • memory/2108-30-0x0000000000400000-0x00000000007CE000-memory.dmp
      Filesize

      3.8MB

    • memory/2108-23-0x0000000000400000-0x00000000007CE000-memory.dmp
      Filesize

      3.8MB

    • memory/2108-24-0x0000000000400000-0x00000000007CE000-memory.dmp
      Filesize

      3.8MB

    • memory/2108-25-0x0000000071370000-0x00000000713A9000-memory.dmp
      Filesize

      228KB

    • memory/2108-22-0x0000000000400000-0x00000000007CE000-memory.dmp
      Filesize

      3.8MB

    • memory/2108-27-0x0000000000400000-0x00000000007CE000-memory.dmp
      Filesize

      3.8MB

    • memory/2108-29-0x0000000000400000-0x00000000007CE000-memory.dmp
      Filesize

      3.8MB

    • memory/2108-28-0x0000000000400000-0x00000000007CE000-memory.dmp
      Filesize

      3.8MB

    • memory/2108-21-0x0000000000400000-0x00000000007CE000-memory.dmp
      Filesize

      3.8MB

    • memory/2108-31-0x0000000000400000-0x00000000007CE000-memory.dmp
      Filesize

      3.8MB

    • memory/2108-32-0x0000000000400000-0x00000000007CE000-memory.dmp
      Filesize

      3.8MB

    • memory/2108-33-0x00000000710C0000-0x00000000710F9000-memory.dmp
      Filesize

      228KB

    • memory/2108-34-0x0000000000400000-0x00000000007CE000-memory.dmp
      Filesize

      3.8MB

    • memory/2108-35-0x0000000000400000-0x00000000007CE000-memory.dmp
      Filesize

      3.8MB

    • memory/2108-36-0x0000000000400000-0x00000000007CE000-memory.dmp
      Filesize

      3.8MB

    • memory/2108-37-0x0000000070F10000-0x0000000070F49000-memory.dmp
      Filesize

      228KB

    • memory/2108-20-0x0000000000400000-0x00000000007CE000-memory.dmp
      Filesize

      3.8MB