Analysis

  • max time kernel
    148s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-08-2024 16:05

General

  • Target

    1b57c846642439e8075b62c48f9f308c599c2fc0c028631b9263e6724c64ecef.exe

  • Size

    2.7MB

  • MD5

    5df4f8f8a7a896fad462276803c89857

  • SHA1

    ab113df31bb37cdb727f3ea3c6e9cc397e5be80e

  • SHA256

    1b57c846642439e8075b62c48f9f308c599c2fc0c028631b9263e6724c64ecef

  • SHA512

    08a63d53836e37a7971f76dc1e60be44ec073bdd11cbf3eb9f9dac9d1c8e1a4fa7a83c38dff972c8febad82f53b3c85f0db548664851fe7b5d60b05999ec13ee

  • SSDEEP

    24576:aju8SpOfT+Z8fDTuvlzq3ae70J6ImfeSnPlAVMRNJhpEx4oQp3d2TX9iSghV+3Ol:NOfHfvu9qakj+aRXEx4LV+3OvS

Malware Config

Extracted

Family

bitrat

Version

1.38

C2

aaaxxx60.hopto.org:100

Attributes
  • communication_password

    827ccb0eea8a706c4c34a16891f84e7b

  • 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 2 IoCs

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

  • Executes dropped EXE 5 IoCs
  • UPX packed file 4 IoCs

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

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

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

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 11 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 5 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Runs ping.exe 1 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 36 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 41 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1b57c846642439e8075b62c48f9f308c599c2fc0c028631b9263e6724c64ecef.exe
    "C:\Users\Admin\AppData\Local\Temp\1b57c846642439e8075b62c48f9f308c599c2fc0c028631b9263e6724c64ecef.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2780
    • C:\Windows\SysWOW64\cmd.exe
      "cmd" /c ping 127.0.0.1 -n 38 > nul && REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "cghvjh" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\hvh.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:4524
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 38
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:2960
      • C:\Windows\SysWOW64\reg.exe
        REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "cghvjh" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\hvh.exe"
        3⤵
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        PID:4288
    • C:\Windows\SysWOW64\cmd.exe
      "cmd" /c ping 127.0.0.1 -n 39 > nul && copy "C:\Users\Admin\AppData\Local\Temp\1b57c846642439e8075b62c48f9f308c599c2fc0c028631b9263e6724c64ecef.exe" "C:\Users\Admin\AppData\Roaming\hvh.exe" && ping 127.0.0.1 -n 39 > nul && "C:\Users\Admin\AppData\Roaming\hvh.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:4144
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 39
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:2904
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 39
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:1096
      • C:\Users\Admin\AppData\Roaming\hvh.exe
        "C:\Users\Admin\AppData\Roaming\hvh.exe"
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2368
        • C:\Users\Admin\AppData\Local\Temp\mscorsvw.exe
          "C:\Users\Admin\AppData\Local\Temp\mscorsvw.exe"
          4⤵
          • Executes dropped EXE
          PID:4360
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 4360 -s 236
            5⤵
            • Program crash
            PID:212
        • C:\Users\Admin\AppData\Local\Temp\mscorsvw.exe
          "C:\Users\Admin\AppData\Local\Temp\mscorsvw.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          PID:1968
        • C:\Users\Admin\AppData\Local\Temp\poum.exe
          "C:\Users\Admin\AppData\Local\Temp\poum.exe"
          4⤵
          • Checks computer location settings
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:4468
          • C:\Users\Admin\AppData\Local\Temp\poum.exe
            "C:\Users\Admin\AppData\Local\Temp\poum.exe"
            5⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:4168
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4360 -ip 4360
    1⤵
      PID:3528

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\poum.exe.log

      Filesize

      1KB

      MD5

      7dca233df92b3884663fa5a40db8d49c

      SHA1

      208b8f27b708c4e06ac37f974471cc7b29c29b60

      SHA256

      90c83311e35da0b5f8aa65aa2109745feb68ee9540e863f4ed909872e9c6a84c

      SHA512

      d134b96fd33c79c85407608f76afc5a9f937bff453b1c90727a3ed992006c7d4c8329be6a2b5ba6b11da1a32f7cd60e9bc380be388b586d6cd5c2e6b1f57bd07

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

      Filesize

      131KB

      MD5

      8ea79e659da869468746abe850d67996

      SHA1

      c4d483ac89670539592d1b73733c25fb4fe3f574

      SHA256

      7d8d8696acd1815316174fba563f2e2ad0be3b5e9c6a28e237f9131a41067169

      SHA512

      f7d62ffa3f0cd1e3e8a163ee2d724854f749ece3169180f573ca683f2641519e8c7fc4308e0e4cc362a78f40640649d2f251ff0e35cd1e1710f810d79b7512b5

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

      Filesize

      76KB

      MD5

      0e362e7005823d0bec3719b902ed6d62

      SHA1

      590d860b909804349e0cdc2f1662b37bd62f7463

      SHA256

      2d0dc6216f613ac7551a7e70a798c22aee8eb9819428b1357e2b8c73bef905ad

      SHA512

      518991b68496b3f8545e418cf9b345e0791e09cc20d177b8aa47e0aba447aa55383c64f5bdaca39f2b061a5d08c16f2ad484af8a9f238ca23ab081618fba3ad3

    • C:\Users\Admin\AppData\Local\Temp\poum.txt

      Filesize

      49B

      MD5

      050ce52f77641cc8a8a82b848882aaa0

      SHA1

      99810c55fba2f3e902fc8d1f5797629a2b784669

      SHA256

      7f90aa7668d189d3d00986fae2efdc57cfd275a079225aacab5137adf0198612

      SHA512

      dd94b41f60e3930c126b304225041a43c8b4fb9695b2d49d2a91304cd319a1ac8200c1aab4aeebb04fda62d774ceef87dd01d171b3f8d6ee788a9a72ce15d5ea

    • C:\Users\Admin\AppData\Local\Temp\poum.txt

      Filesize

      52B

      MD5

      2a4a65a8e2414e43b0604f779a9cbb26

      SHA1

      2c1890def36ca8a4ffaa167d6d39bddfd6882bce

      SHA256

      34ed94e068b25c5cd511c318d2c87c84fd36daabdda5dfba5d2957a7d50af3f7

      SHA512

      f8473dce9f6e40c54045d26da550f930d167b904946e2d45d6e5921aa5c1035ca1809e48205dc1c524a43f18913b5ac60b93f91951eca2ca44a49f4ce678ce4c

    • C:\Users\Admin\AppData\Local\Temp\poum.txt

      Filesize

      52B

      MD5

      c773972188aa33c18e561c231bd188c4

      SHA1

      cb3ad9535ab7fb5aad1a556a3996a845a675b947

      SHA256

      4dc4fdff6b28418852e4a652b48a1d44480865b5140364a81ba9f039fff3592c

      SHA512

      b618b1f587d1d88224788f4f43ad3d19ab3f29f7a2735af4b5922a967c1b6a174a1b038036a30b0bbc838042d19590011bcbc4e5d2b209294a81819cd750351a

    • C:\Users\Admin\AppData\Roaming\hvh.exe

      Filesize

      2.7MB

      MD5

      5df4f8f8a7a896fad462276803c89857

      SHA1

      ab113df31bb37cdb727f3ea3c6e9cc397e5be80e

      SHA256

      1b57c846642439e8075b62c48f9f308c599c2fc0c028631b9263e6724c64ecef

      SHA512

      08a63d53836e37a7971f76dc1e60be44ec073bdd11cbf3eb9f9dac9d1c8e1a4fa7a83c38dff972c8febad82f53b3c85f0db548664851fe7b5d60b05999ec13ee

    • memory/1968-56-0x0000000000400000-0x00000000007E4000-memory.dmp

      Filesize

      3.9MB

    • memory/1968-57-0x0000000000400000-0x00000000007E4000-memory.dmp

      Filesize

      3.9MB

    • memory/2368-23-0x00000000749A0000-0x0000000075150000-memory.dmp

      Filesize

      7.7MB

    • memory/2368-27-0x0000000008A80000-0x0000000008AA2000-memory.dmp

      Filesize

      136KB

    • memory/2368-26-0x0000000008690000-0x00000000089E4000-memory.dmp

      Filesize

      3.3MB

    • memory/2368-25-0x000000000FAE0000-0x000000000FAE6000-memory.dmp

      Filesize

      24KB

    • memory/2368-24-0x000000000D980000-0x000000000D99A000-memory.dmp

      Filesize

      104KB

    • memory/2368-20-0x00000000749A0000-0x0000000075150000-memory.dmp

      Filesize

      7.7MB

    • memory/2368-21-0x00000000749A0000-0x0000000075150000-memory.dmp

      Filesize

      7.7MB

    • memory/2368-22-0x00000000054B0000-0x00000000054E2000-memory.dmp

      Filesize

      200KB

    • memory/2780-8-0x000000000BCA0000-0x000000000BCAA000-memory.dmp

      Filesize

      40KB

    • memory/2780-6-0x0000000005760000-0x0000000005792000-memory.dmp

      Filesize

      200KB

    • memory/2780-12-0x00000000749D0000-0x0000000075180000-memory.dmp

      Filesize

      7.7MB

    • memory/2780-11-0x00000000749DE000-0x00000000749DF000-memory.dmp

      Filesize

      4KB

    • memory/2780-10-0x00000000749D0000-0x0000000075180000-memory.dmp

      Filesize

      7.7MB

    • memory/2780-0-0x00000000749DE000-0x00000000749DF000-memory.dmp

      Filesize

      4KB

    • memory/2780-1-0x0000000000A80000-0x0000000000D36000-memory.dmp

      Filesize

      2.7MB

    • memory/2780-2-0x0000000005D80000-0x0000000006324000-memory.dmp

      Filesize

      5.6MB

    • memory/2780-7-0x0000000005D50000-0x0000000005D66000-memory.dmp

      Filesize

      88KB

    • memory/2780-3-0x00000000057D0000-0x0000000005862000-memory.dmp

      Filesize

      584KB

    • memory/2780-14-0x00000000749D0000-0x0000000075180000-memory.dmp

      Filesize

      7.7MB

    • memory/2780-5-0x00000000749D0000-0x0000000075180000-memory.dmp

      Filesize

      7.7MB

    • memory/2780-4-0x0000000005870000-0x000000000590C000-memory.dmp

      Filesize

      624KB

    • memory/4360-29-0x0000000000530000-0x0000000000914000-memory.dmp

      Filesize

      3.9MB

    • memory/4360-32-0x0000000000530000-0x0000000000914000-memory.dmp

      Filesize

      3.9MB

    • memory/4468-45-0x0000000000800000-0x000000000081A000-memory.dmp

      Filesize

      104KB