Analysis

  • max time kernel
    184s
  • max time network
    200s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-11-2022 09:43

General

  • Target

    d43ca72d6fd0c9a2e3f3774b74fd5028.exe

  • Size

    76KB

  • MD5

    d43ca72d6fd0c9a2e3f3774b74fd5028

  • SHA1

    d28a3f9edb5651de9c7a418e63f8417105c83c63

  • SHA256

    8dd93fd81577033b184647b566e160699006396bcc6cbfff405acc4597c0d688

  • SHA512

    b4e5a5df2885d59ff7f4c8325ee7b00be592a62c2ee006244e9d5a8cc67adcb6b15f557146030b9079960b538dddda8626443b9c2ebbe9f31b6e40ab87cfc639

  • SSDEEP

    1536:EwHgiRJFKfgYBUngABZvxZ/DOG8s8MkeNSzXzKD:EwASJFKRapBZP/Dl8DMDSzX+D

Malware Config

Extracted

Family

bitrat

Version

1.38

C2

37.139.128.233:3569

Attributes
  • communication_password

    ce952068942604a6d6df06ed5002fad6

  • tor_process

    tor

Signatures

  • BitRAT

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

  • XenArmor Suite

    XenArmor is as suite of password recovery tools for various application.

  • ACProtect 1.3x - 1.4x DLL software 2 IoCs

    Detects file using ACProtect software.

  • UPX packed file 5 IoCs

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

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Loads dropped DLL 1 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads local data of messenger clients 2 TTPs

    Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

  • 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 accounts 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d43ca72d6fd0c9a2e3f3774b74fd5028.exe
    "C:\Users\Admin\AppData\Local\Temp\d43ca72d6fd0c9a2e3f3774b74fd5028.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2152
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMgAwAA==
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3908
    • C:\Users\Admin\AppData\Local\Temp\d43ca72d6fd0c9a2e3f3774b74fd5028.exe
      C:\Users\Admin\AppData\Local\Temp\d43ca72d6fd0c9a2e3f3774b74fd5028.exe
      2⤵
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious use of SetThreadContext
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2120
      • C:\Users\Admin\AppData\Local\Temp\d43ca72d6fd0c9a2e3f3774b74fd5028.exe
        -a "C:\Users\Admin\AppData\Local\707c9a17\plg\SXmkHRZK.json"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:3128
        • C:\Users\Admin\AppData\Local\Temp\d43ca72d6fd0c9a2e3f3774b74fd5028.exe
          -a "C:\Users\Admin\AppData\Local\Temp\unk.xml"
          4⤵
          • Loads dropped DLL
          • Accesses Microsoft Outlook accounts
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4144

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\707c9a17\plg\SXmkHRZK.json

    Filesize

    1KB

    MD5

    ce3e2f5f04eff81b3b7130a90a8e3a6e

    SHA1

    fe9ac39d1db0a28aeef54741003d3f639125dc1c

    SHA256

    b45d1dda071c8ee6b1078e8f71661ee1511887daf491a9f81415232a3c3bd631

    SHA512

    8cd831f9231cc30eeed546b47401459a2737d160faf0eacc823d286de22f79d68a95b994dce1f1eb6e7fa96e24aadeac50659115afe74148a33e6d31012ed357

  • C:\Users\Admin\AppData\Local\Temp\License.XenArmor

    Filesize

    104B

    MD5

    4f3bde9212e17ef18226866d6ac739b6

    SHA1

    732733bec8314beb81437e60876ffa75e72ae6cd

    SHA256

    212173a405c78d70f90e8ec0699a60ed2f4a9f3a8070de62eabd666c268fb174

    SHA512

    10b7cdae0b9a7b0f8e1bfc66a60675fa9b25c523864d5ae3da243f4e6e4c5194f3bd92af57ac956157442f66414bdd3393d0a1e5ba4ef0f192561e8524d4e744

  • C:\Users\Admin\AppData\Local\Temp\License.XenArmor

    Filesize

    104B

    MD5

    bf5da170f7c9a8eae88d1cb1a191ff80

    SHA1

    dd1b991a1b03587a5d1edc94e919a2070e325610

    SHA256

    e5d5110feb21939d82d962981aeaaafc4643b40a9b87cbed800ace82135d57cd

    SHA512

    9e32247d8556fd6efffbf7b6b9c325652d8c4b223b0fa38020879171476a49ab1f64d8897b5d8d92b79c5484fd9d5899be26ca5f664ee1f9c2acb0857084121e

  • C:\Users\Admin\AppData\Local\Temp\Unknown.dll

    Filesize

    793KB

    MD5

    86114faba7e1ec4a667d2bcb2e23f024

    SHA1

    670df6e1ba1dc6bece046e8b2e573dd36748245e

    SHA256

    568da887725ccfdc4c5aae3ff66792fe60eca4e0818338f6a8434be66a6fe46d

    SHA512

    d26ee0da6ccd4022982cf848c46e40f6781b667e39d0c5daf5ea8d74c44e55c55a5f7590a4d2a60aa1911358ca783c4276a9b4e6311c4cea20df1ebd4f7f457f

  • C:\Users\Admin\AppData\Local\Temp\Unknown.dll

    Filesize

    793KB

    MD5

    86114faba7e1ec4a667d2bcb2e23f024

    SHA1

    670df6e1ba1dc6bece046e8b2e573dd36748245e

    SHA256

    568da887725ccfdc4c5aae3ff66792fe60eca4e0818338f6a8434be66a6fe46d

    SHA512

    d26ee0da6ccd4022982cf848c46e40f6781b667e39d0c5daf5ea8d74c44e55c55a5f7590a4d2a60aa1911358ca783c4276a9b4e6311c4cea20df1ebd4f7f457f

  • C:\Users\Admin\AppData\Local\Temp\unk.xml

    Filesize

    1KB

    MD5

    ce3e2f5f04eff81b3b7130a90a8e3a6e

    SHA1

    fe9ac39d1db0a28aeef54741003d3f639125dc1c

    SHA256

    b45d1dda071c8ee6b1078e8f71661ee1511887daf491a9f81415232a3c3bd631

    SHA512

    8cd831f9231cc30eeed546b47401459a2737d160faf0eacc823d286de22f79d68a95b994dce1f1eb6e7fa96e24aadeac50659115afe74148a33e6d31012ed357

  • memory/2120-144-0x0000000000000000-mapping.dmp

  • memory/2120-151-0x0000000000400000-0x00000000007CE000-memory.dmp

    Filesize

    3.8MB

  • memory/2120-153-0x00000000749D0000-0x0000000074A09000-memory.dmp

    Filesize

    228KB

  • memory/2120-152-0x0000000074630000-0x0000000074669000-memory.dmp

    Filesize

    228KB

  • memory/2120-150-0x00000000749D0000-0x0000000074A09000-memory.dmp

    Filesize

    228KB

  • memory/2120-149-0x0000000074630000-0x0000000074669000-memory.dmp

    Filesize

    228KB

  • memory/2120-148-0x0000000000400000-0x00000000007CE000-memory.dmp

    Filesize

    3.8MB

  • memory/2120-145-0x0000000000400000-0x00000000007CE000-memory.dmp

    Filesize

    3.8MB

  • memory/2120-146-0x0000000000400000-0x00000000007CE000-memory.dmp

    Filesize

    3.8MB

  • memory/2120-147-0x0000000000400000-0x00000000007CE000-memory.dmp

    Filesize

    3.8MB

  • memory/2152-133-0x00000000071E0000-0x0000000007272000-memory.dmp

    Filesize

    584KB

  • memory/2152-132-0x00000000006B0000-0x00000000006C8000-memory.dmp

    Filesize

    96KB

  • memory/2152-134-0x0000000007830000-0x0000000007DD4000-memory.dmp

    Filesize

    5.6MB

  • memory/2152-135-0x0000000007280000-0x00000000072A2000-memory.dmp

    Filesize

    136KB

  • memory/3128-159-0x0000000000400000-0x00000000008DC000-memory.dmp

    Filesize

    4.9MB

  • memory/3128-174-0x0000000000400000-0x00000000008DC000-memory.dmp

    Filesize

    4.9MB

  • memory/3128-154-0x0000000000000000-mapping.dmp

  • memory/3128-155-0x0000000000400000-0x00000000008DC000-memory.dmp

    Filesize

    4.9MB

  • memory/3128-157-0x0000000000400000-0x00000000008DC000-memory.dmp

    Filesize

    4.9MB

  • memory/3128-158-0x0000000000400000-0x00000000008DC000-memory.dmp

    Filesize

    4.9MB

  • memory/3908-142-0x0000000007AC0000-0x000000000813A000-memory.dmp

    Filesize

    6.5MB

  • memory/3908-140-0x0000000005E20000-0x0000000005E86000-memory.dmp

    Filesize

    408KB

  • memory/3908-136-0x0000000000000000-mapping.dmp

  • memory/3908-137-0x0000000002E90000-0x0000000002EC6000-memory.dmp

    Filesize

    216KB

  • memory/3908-138-0x0000000005740000-0x0000000005D68000-memory.dmp

    Filesize

    6.2MB

  • memory/3908-139-0x0000000005650000-0x00000000056B6000-memory.dmp

    Filesize

    408KB

  • memory/3908-143-0x0000000006980000-0x000000000699A000-memory.dmp

    Filesize

    104KB

  • memory/3908-141-0x0000000006480000-0x000000000649E000-memory.dmp

    Filesize

    120KB

  • memory/4144-164-0x0000000000400000-0x00000000006FE000-memory.dmp

    Filesize

    3.0MB

  • memory/4144-168-0x0000000000400000-0x00000000006FE000-memory.dmp

    Filesize

    3.0MB

  • memory/4144-169-0x0000000010000000-0x0000000010227000-memory.dmp

    Filesize

    2.2MB

  • memory/4144-170-0x0000000000400000-0x00000000006FE000-memory.dmp

    Filesize

    3.0MB

  • memory/4144-171-0x0000000010000000-0x0000000010227000-memory.dmp

    Filesize

    2.2MB

  • memory/4144-160-0x0000000000000000-mapping.dmp

  • memory/4144-163-0x0000000000400000-0x00000000006FE000-memory.dmp

    Filesize

    3.0MB

  • memory/4144-162-0x0000000000400000-0x00000000006FE000-memory.dmp

    Filesize

    3.0MB

  • memory/4144-161-0x0000000000400000-0x00000000006FE000-memory.dmp

    Filesize

    3.0MB