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Analysis

  • max time kernel
    149s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/12/2024, 06:04

General

  • Target

    JaffaCakes118_05af19f88159fdc48e4039627198ddffacceb086e67a5fe0a76379a490be75a6.exe

  • Size

    300.0MB

  • MD5

    3bfc4f5d058aac39f3cd1cc7771fb376

  • SHA1

    4f400860ad6e90f17b6abe3f925de5fe47dac4ba

  • SHA256

    05af19f88159fdc48e4039627198ddffacceb086e67a5fe0a76379a490be75a6

  • SHA512

    263be832f00990f423febb1be6f7871841c695c876f051a6f0906dfa9cb577f00b5a6a610fdf36a8c5d3323d2e8b5e171d78fe2e42b4bf6114d6c76476fa236e

  • SSDEEP

    6144:duoCmQdnCJGib1C5mb67X3UIAPaQxgm5LqGZAoyT24sc+n9fiibGd2HzZ:duL8JGib05b7XE2Q4+4Y

Malware Config

Extracted

Family

asyncrat

Version

5.0.5

Botnet

Venom Clients

C2

venom12345.duckdns.org:4449

venomunverified.duckdns.org:4449

Mutex

Venom_RAT_HVNC_Mutex_Venom RAT_HVNC

Attributes
  • delay

    1

  • install

    false

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers written in C#.

  • Asyncrat family
  • Executes dropped EXE 2 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 18 IoCs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs

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

  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 60 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_05af19f88159fdc48e4039627198ddffacceb086e67a5fe0a76379a490be75a6.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_05af19f88159fdc48e4039627198ddffacceb086e67a5fe0a76379a490be75a6.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3832
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:3120
    • C:\Windows\SysWOW64\cmd.exe
      "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\msdtc"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4948
    • C:\Windows\SysWOW64\cmd.exe
      "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\msdtc\msdtc.exe'" /f
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2904
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\msdtc\msdtc.exe'" /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:4304
    • C:\Windows\SysWOW64\cmd.exe
      "cmd" /c copy "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_05af19f88159fdc48e4039627198ddffacceb086e67a5fe0a76379a490be75a6.exe" "C:\Users\Admin\AppData\Roaming\msdtc\msdtc.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3376
  • C:\Users\Admin\AppData\Roaming\msdtc\msdtc.exe
    C:\Users\Admin\AppData\Roaming\msdtc\msdtc.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3820
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:3112
    • C:\Windows\SysWOW64\cmd.exe
      "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\msdtc"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:316
    • C:\Windows\SysWOW64\cmd.exe
      "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\msdtc\msdtc.exe'" /f
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4388
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\msdtc\msdtc.exe'" /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:1372
    • C:\Windows\SysWOW64\cmd.exe
      "cmd" /c copy "C:\Users\Admin\AppData\Roaming\msdtc\msdtc.exe" "C:\Users\Admin\AppData\Roaming\msdtc\msdtc.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2828
  • C:\Users\Admin\AppData\Roaming\msdtc\msdtc.exe
    C:\Users\Admin\AppData\Roaming\msdtc\msdtc.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4684
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:1380
    • C:\Windows\SysWOW64\cmd.exe
      "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\msdtc"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:384
    • C:\Windows\SysWOW64\cmd.exe
      "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\msdtc\msdtc.exe'" /f
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2232
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\msdtc\msdtc.exe'" /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:804
    • C:\Windows\SysWOW64\cmd.exe
      "cmd" /c copy "C:\Users\Admin\AppData\Roaming\msdtc\msdtc.exe" "C:\Users\Admin\AppData\Roaming\msdtc\msdtc.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2736

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    425B

    MD5

    4eaca4566b22b01cd3bc115b9b0b2196

    SHA1

    e743e0792c19f71740416e7b3c061d9f1336bf94

    SHA256

    34ba0ab8d1850e7825763f413142a333ccbc05fa2b5499a28a7d27b8a1c5b4bb

    SHA512

    bc2b1bf45203e3bb3009a7d37617b8f0f7ffa613680b32de2b963e39d2cf1650614d7035a0cf78f35a4f5cb17a2a439e2e07deaefd2a4275a62efd0a5c0184a1

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

    Filesize

    517B

    MD5

    4d737622dcf53d4cf89810ec284fdf89

    SHA1

    a71b0c3ac6b940047ca7730465c1f97342c8ca08

    SHA256

    7d5529c9d51a138cea4ae46faa32497ccf1e55d6bd5aa43f746d413ce80fa1cb

    SHA512

    acf53d9d2ffe5e3dd34760e3c8e138229ee9805387ddf0765266ee882268cf64f84fb4a1b79aee3f90b88b50f1a1bbf10c9ba7a1013496059b46f3abe9c859c6

  • memory/3120-11-0x0000000074640000-0x0000000074DF0000-memory.dmp

    Filesize

    7.7MB

  • memory/3120-4-0x0000000000400000-0x0000000000416000-memory.dmp

    Filesize

    88KB

  • memory/3120-6-0x0000000074640000-0x0000000074DF0000-memory.dmp

    Filesize

    7.7MB

  • memory/3120-12-0x0000000074640000-0x0000000074DF0000-memory.dmp

    Filesize

    7.7MB

  • memory/3120-8-0x0000000074640000-0x0000000074DF0000-memory.dmp

    Filesize

    7.7MB

  • memory/3820-15-0x0000000000D30000-0x0000000000DB2000-memory.dmp

    Filesize

    520KB

  • memory/3832-3-0x0000000074640000-0x0000000074DF0000-memory.dmp

    Filesize

    7.7MB

  • memory/3832-7-0x0000000074640000-0x0000000074DF0000-memory.dmp

    Filesize

    7.7MB

  • memory/3832-0-0x000000007464E000-0x000000007464F000-memory.dmp

    Filesize

    4KB

  • memory/3832-2-0x00000000052D0000-0x0000000005336000-memory.dmp

    Filesize

    408KB

  • memory/3832-1-0x0000000000D70000-0x0000000000DF2000-memory.dmp

    Filesize

    520KB