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Resubmissions

12/01/2025, 12:56

250112-p6ebfasras 10

10/01/2025, 05:18

250110-fzmvkawkdn 10

Analysis

  • max time kernel
    895s
  • max time network
    898s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    12/01/2025, 12:56

General

  • Target

    JaffaCakes118_dbf61f566a642cdd0df3fc1d078debb8.exe

  • Size

    156KB

  • MD5

    dbf61f566a642cdd0df3fc1d078debb8

  • SHA1

    0294ef20386693a5699bc4e57653f966f0eaf028

  • SHA256

    aead3b29e4eb3a2c5499b67eb81a609bd85944a1d7ec6b9557be527a0c566929

  • SHA512

    4de09065e244d791d8c909a1c6cd689063f8318af2648498f9cf435be19b666aba096f1b2946a75200cacee5a63d705fb545c42a9d6f7a5dbf49d3cd0865467c

  • SSDEEP

    3072:bqOQcs8pmp5W4J44tDlsAU/UwtRUsUUc2fjRs+DVs+A1+HX5wsOZ4T3EMXckbNGV:bqLl2V7H6sA4bEMXc4VLvTGc

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

winx.xcapdatap.capetown:6204

Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

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

  • Asyncrat family
  • ReZer0 packer 1 IoCs

    Detects ReZer0, a packer with multiple versions used in various campaigns.

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

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 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 1 IoCs

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

  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_dbf61f566a642cdd0df3fc1d078debb8.exe
    C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_dbf61f566a642cdd0df3fc1d078debb8.exe cmd /c %SIGILL% "SIGTERM|DELETE|SIGKILL"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1088
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\PqVwJtjSm" /XML "C:\Users\Admin\AppData\Local\Temp\tmp367B.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:1188
    • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_dbf61f566a642cdd0df3fc1d078debb8.exe
      "{path}"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2904

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp367B.tmp

    Filesize

    1KB

    MD5

    ac08641f7ac8ff08558fc6ba8df7cc30

    SHA1

    80c2f3e75f1dc72f57472cab7287535d363e4e68

    SHA256

    2ab60fbaee73ea4d342cda277cc432be33b73db207cbd89b1d4056f17f93f5e2

    SHA512

    87fae00c1e0baa4864359657985a7beae9260d13652323cd4c24a187d0f2a8a67c57f9055021d8ceb0c891840d22bdd87d89cbb85af32743a840797b0786830b

  • memory/1088-27-0x00000000742B0000-0x000000007499E000-memory.dmp

    Filesize

    6.9MB

  • memory/1088-2-0x00000000004D0000-0x00000000004D8000-memory.dmp

    Filesize

    32KB

  • memory/1088-3-0x00000000742B0000-0x000000007499E000-memory.dmp

    Filesize

    6.9MB

  • memory/1088-4-0x00000000742BE000-0x00000000742BF000-memory.dmp

    Filesize

    4KB

  • memory/1088-5-0x00000000742B0000-0x000000007499E000-memory.dmp

    Filesize

    6.9MB

  • memory/1088-6-0x0000000000B00000-0x0000000000B18000-memory.dmp

    Filesize

    96KB

  • memory/1088-1-0x0000000000C80000-0x0000000000CAC000-memory.dmp

    Filesize

    176KB

  • memory/1088-0-0x00000000742BE000-0x00000000742BF000-memory.dmp

    Filesize

    4KB

  • memory/2904-22-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

  • memory/2904-14-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

  • memory/2904-18-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2904-10-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

  • memory/2904-12-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

  • memory/2904-20-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

  • memory/2904-16-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

  • memory/2904-26-0x00000000742B0000-0x000000007499E000-memory.dmp

    Filesize

    6.9MB

  • memory/2904-25-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

  • memory/2904-28-0x00000000742B0000-0x000000007499E000-memory.dmp

    Filesize

    6.9MB

  • memory/2904-29-0x00000000742B0000-0x000000007499E000-memory.dmp

    Filesize

    6.9MB

  • memory/2904-30-0x00000000742B0000-0x000000007499E000-memory.dmp

    Filesize

    6.9MB