Analysis

  • max time kernel
    59s
  • max time network
    56s
  • platform
    windows11-21h2_x64
  • resource
    win11-20250410-en
  • resource tags

    arch:x64arch:x86image:win11-20250410-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    17/04/2025, 19:19

General

  • Target

    f0adb709ba8e38ae71df5ff83d9fe814f4546ea2f2bf14c0847bc6b4742fa2af.exe

  • Size

    3.1MB

  • MD5

    140f3d3e62eec69edafd3ff855ef3bf7

  • SHA1

    155e413504169fe58e418c545c48fe3254a91ae5

  • SHA256

    f0adb709ba8e38ae71df5ff83d9fe814f4546ea2f2bf14c0847bc6b4742fa2af

  • SHA512

    4ba11cc149a6795e2abc1f8a5f593d48437205e8360b989c6ba05033f41a9271339a541b8d763da4a95b4d5b8967cb8db5bf74e71754741fa93228f7a6b50513

  • SSDEEP

    49152:yaBI3hJnoRWOhPqcNHwTIgsLWF8lv9Xeh5Lvqg7ESHPG+c8+SEGQEx:7BKJOW8NmDWlvgh5LvuSuNTSEGPx

Malware Config

Extracted

Family

darkcomet

Botnet

New-pure-2025-apr-444

C2

klarkgabi.zapto.org:37223

Mutex

DC_MUTEX-B6EB1ZG

Attributes
  • InstallPath

    calc.exe

  • gencode

    EMfVQBDB7LEd

  • install

    true

  • offline_keylogger

    true

  • password

    hhhhhh

  • persistence

    false

  • reg_key

    wincalc

rc4.plain

Extracted

Family

asyncrat

Version

0.5.6A

Botnet

null

C2

klarkgabi.zapto.org:9907

Mutex

servnew7888

Attributes
  • delay

    5

  • install

    false

  • install_file

    winplay.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

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

  • Asyncrat family
  • Darkcomet

    DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.

  • Darkcomet family
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 10 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 20 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 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 25 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f0adb709ba8e38ae71df5ff83d9fe814f4546ea2f2bf14c0847bc6b4742fa2af.exe
    "C:\Users\Admin\AppData\Local\Temp\f0adb709ba8e38ae71df5ff83d9fe814f4546ea2f2bf14c0847bc6b4742fa2af.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:6028
    • C:\Users\Admin\AppData\Local\Temp\f0adb709ba8e38ae71df5ff83d9fe814f4546ea2f2bf14c0847bc6b4742fa2af.exe
      "C:\Users\Admin\AppData\Local\Temp\f0adb709ba8e38ae71df5ff83d9fe814f4546ea2f2bf14c0847bc6b4742fa2af.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Drops file in Drivers directory
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3404
      • C:\Users\Admin\AppData\Local\Temp\ADOBE.EXE
        "C:\Users\Admin\AppData\Local\Temp\ADOBE.EXE"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:4724
      • C:\Users\Admin\AppData\Local\Temp\SVSHOST.EXE
        "C:\Users\Admin\AppData\Local\Temp\SVSHOST.EXE"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:5096
      • C:\Users\Admin\AppData\Local\Temp\USBWIN.EXE
        "C:\Users\Admin\AppData\Local\Temp\USBWIN.EXE"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4928
        • C:\Users\Admin\AppData\Local\Temp\USBWIN.EXE
          "C:\Users\Admin\AppData\Local\Temp\USBWIN.EXE"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:3356
        • C:\Windows\SysWOW64\cmd.exe
          "cmd.exe" /C mkdir "C:\Users\Admin\AppData\Roaming\winvideo"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2868
        • C:\Windows\SysWOW64\cmd.exe
          "cmd.exe" /C schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\winvideo\winvideo.exe'" /f
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2612
          • C:\Windows\SysWOW64\schtasks.exe
            schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\winvideo\winvideo.exe'" /f
            5⤵
            • System Location Discovery: System Language Discovery
            • Scheduled Task/Job: Scheduled Task
            PID:5304
        • C:\Windows\SysWOW64\cmd.exe
          "cmd.exe" /C copy "C:\Users\Admin\AppData\Local\Temp\USBWIN.EXE" "C:\Users\Admin\AppData\Roaming\winvideo\winvideo.exe"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:5152
      • C:\Users\Admin\AppData\Local\Temp\WINMEDIA.EXE
        "C:\Users\Admin\AppData\Local\Temp\WINMEDIA.EXE"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:4244
      • C:\Users\Admin\AppData\Local\Temp\WINRARS.EXE
        "C:\Users\Admin\AppData\Local\Temp\WINRARS.EXE"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:2872
      • C:\Users\Admin\Documents\calc.exe
        "C:\Users\Admin\Documents\calc.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:5008
  • C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c C:\Users\Admin\Documents\calc.exe
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:5460
    • C:\Users\Admin\Documents\calc.exe
      C:\Users\Admin\Documents\calc.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:1180
  • C:\Users\Admin\AppData\Roaming\winvideo\winvideo.exe
    C:\Users\Admin\AppData\Roaming\winvideo\winvideo.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2076
    • C:\Users\Admin\AppData\Roaming\winvideo\winvideo.exe
      "C:\Users\Admin\AppData\Roaming\winvideo\winvideo.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:1428
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /C mkdir "C:\Users\Admin\AppData\Roaming\winvideo"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1456
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /C schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\winvideo\winvideo.exe'" /f
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3196
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\winvideo\winvideo.exe'" /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2884
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /C copy "C:\Users\Admin\AppData\Roaming\winvideo\winvideo.exe" "C:\Users\Admin\AppData\Roaming\winvideo\winvideo.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2244

Network

MITRE ATT&CK Enterprise v16

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\ADOBE.EXE

    Filesize

    821KB

    MD5

    79bf855a30a5bb0f55c2c803038d9b8d

    SHA1

    731272a40c3199a34031170ca13036afde608304

    SHA256

    daced69a19767b62b51e3ea38675cee3b88f11fa93cb05789c5befadd6c1eca2

    SHA512

    fbcc7564deb15db5aa4951102ee1cf4a14f1b1d9d466cda01beb946ba70eb23026ba38246c0b1a7019cd35de615f6eb0347734a490b21da2e057c05be290c86e

  • C:\Users\Admin\AppData\Local\Temp\SVSHOST.EXE

    Filesize

    871KB

    MD5

    64b59f3f2e44d0a20353fddb06c206d7

    SHA1

    f16200245c779926d87b851985636df345ebbefc

    SHA256

    93aa34b1f1662637c3025615a9b045c4031e61967bd6d73c2ad8c3191af7b31e

    SHA512

    9ef5842c20d8b6f052639f349d3b4f23013d10047cd6bc55a5fb2c832f580688f046812945693b0aab1c074a43ac63b72bce7cfb63fd23dfd807996ffde5430d

  • C:\Users\Admin\AppData\Local\Temp\USBWIN.EXE

    Filesize

    181KB

    MD5

    4f81e3de4c14c7c7eec40f2831459c80

    SHA1

    a9b6d7261f14265760b9533a93d113d52d3706e6

    SHA256

    c9d9caae4f9b8fc0b6bf5472ee465ccaa76248482da37fc1c9c267504989e60c

    SHA512

    7e7250884a5e58a147a991b04a8d6afba230d2768e18549b940e676ba4b8fc1ed0d080ac396e6cf7ab1b71ad53e9f9493643fea81ac7163ed5d41348f128f8db

  • C:\Users\Admin\AppData\Local\Temp\WINMEDIA.EXE

    Filesize

    179KB

    MD5

    df5683a234caa91931a1bf26c1cfe833

    SHA1

    202d965b73dd19e8396e9eac9b31bbad014d2062

    SHA256

    62f6acd131549adce71938b1aa1944dfd7f61b32797dc25ad1410b494ae1ce5a

    SHA512

    b6d709b9c99dc23b04a1544f1a8c707f49a883ca172f1b35c97384bb2206c2ce8a5cc1c07abbc2b4979be121ebdcc3c084be5e76840ec4417a45c573b1055ce5

  • C:\Users\Admin\AppData\Local\Temp\WINRARS.EXE

    Filesize

    357KB

    MD5

    d77f8d9f12bf80a553a54b095ec73052

    SHA1

    84348fa872bae8507a253498c006101bc4ac8cec

    SHA256

    2caa6dbe19b7e46074ec0e9a15cd377a0d3ad022b144d046edbeb3891df83ce2

    SHA512

    feba6cdb2073b8ded2d0c9c60665be39bca81dd1c8723d06d4e9abdc4584081d33f020298055e15b7715ee12a9eda449fecbe41171c2526efb271d31c7d92b4a

  • C:\Users\Admin\Documents\calc.exe

    Filesize

    3.1MB

    MD5

    140f3d3e62eec69edafd3ff855ef3bf7

    SHA1

    155e413504169fe58e418c545c48fe3254a91ae5

    SHA256

    f0adb709ba8e38ae71df5ff83d9fe814f4546ea2f2bf14c0847bc6b4742fa2af

    SHA512

    4ba11cc149a6795e2abc1f8a5f593d48437205e8360b989c6ba05033f41a9271339a541b8d763da4a95b4d5b8967cb8db5bf74e71754741fa93228f7a6b50513

  • memory/1180-96-0x00000000746D0000-0x0000000074E81000-memory.dmp

    Filesize

    7.7MB

  • memory/1180-95-0x00000000746DE000-0x00000000746DF000-memory.dmp

    Filesize

    4KB

  • memory/1180-30-0x00000000746D0000-0x0000000074E81000-memory.dmp

    Filesize

    7.7MB

  • memory/1180-29-0x00000000746DE000-0x00000000746DF000-memory.dmp

    Filesize

    4KB

  • memory/2872-82-0x0000000000310000-0x0000000000370000-memory.dmp

    Filesize

    384KB

  • memory/3356-85-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

  • memory/3356-94-0x0000000005970000-0x0000000005A0C000-memory.dmp

    Filesize

    624KB

  • memory/3404-13-0x00000000032B0000-0x00000000032B1000-memory.dmp

    Filesize

    4KB

  • memory/3404-12-0x0000000000400000-0x0000000000714000-memory.dmp

    Filesize

    3.1MB

  • memory/3404-10-0x0000000000400000-0x0000000000714000-memory.dmp

    Filesize

    3.1MB

  • memory/3404-9-0x0000000000400000-0x0000000000714000-memory.dmp

    Filesize

    3.1MB

  • memory/3404-7-0x0000000000400000-0x0000000000714000-memory.dmp

    Filesize

    3.1MB

  • memory/3404-88-0x0000000000400000-0x0000000000714000-memory.dmp

    Filesize

    3.1MB

  • memory/4244-78-0x0000000000FB0000-0x0000000000FE2000-memory.dmp

    Filesize

    200KB

  • memory/4724-37-0x0000000000B50000-0x0000000000C22000-memory.dmp

    Filesize

    840KB

  • memory/4928-86-0x00000000059A0000-0x0000000005A32000-memory.dmp

    Filesize

    584KB

  • memory/4928-66-0x00000000003F0000-0x0000000000422000-memory.dmp

    Filesize

    200KB

  • memory/5096-54-0x0000000000C50000-0x0000000000D30000-memory.dmp

    Filesize

    896KB

  • memory/6028-5-0x00000000751BE000-0x00000000751BF000-memory.dmp

    Filesize

    4KB

  • memory/6028-4-0x00000000751B0000-0x0000000075961000-memory.dmp

    Filesize

    7.7MB

  • memory/6028-3-0x0000000004DC0000-0x0000000004E26000-memory.dmp

    Filesize

    408KB

  • memory/6028-0-0x00000000751BE000-0x00000000751BF000-memory.dmp

    Filesize

    4KB

  • memory/6028-6-0x00000000751B0000-0x0000000075961000-memory.dmp

    Filesize

    7.7MB

  • memory/6028-11-0x00000000751B0000-0x0000000075961000-memory.dmp

    Filesize

    7.7MB

  • memory/6028-2-0x00000000052A0000-0x0000000005846000-memory.dmp

    Filesize

    5.6MB

  • memory/6028-1-0x0000000000020000-0x0000000000336000-memory.dmp

    Filesize

    3.1MB