Analysis

  • max time kernel
    142s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15-05-2024 01:43

General

  • Target

    440776946da09827ff0ac2f56741c086_JaffaCakes118.exe

  • Size

    361KB

  • MD5

    440776946da09827ff0ac2f56741c086

  • SHA1

    62cfd5f03712e636fd5883f2b92fb565d2207f33

  • SHA256

    cebee7dc0112f960319868d6df1f9db37868e1912def20304af20a21bf409250

  • SHA512

    521288f212ffd3a3422ca36c8e6fca3ee94030ea5b369798e3332e4a52c4a3f94cdcd9b70e31a7ae1f85c93527161349827dacb285f11529e799932db4522b1d

  • SSDEEP

    6144:k2EKdoUIe33cHZBYuJalMd13x0cH9Bek4PN5mYUpg:HEKGf5UlY3zH9BsmYUi

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

NYAN CAT

C2

dongreg202020.kozow.com:8874

Mutex

df42226e7936412c9a9e4b35efad0718

Attributes
  • reg_key

    df42226e7936412c9a9e4b35efad0718

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 4 IoCs
  • 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).

  • Suspicious behavior: EnumeratesProcesses 13 IoCs
  • Suspicious use of AdjustPrivilegeToken 13 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\440776946da09827ff0ac2f56741c086_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\440776946da09827ff0ac2f56741c086_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3096
    • C:\Users\Admin\AppData\Local\Temp\440776946da09827ff0ac2f56741c086_JaffaCakes118.exe
      "{path}"
      2⤵
        PID:3856
      • C:\Users\Admin\AppData\Local\Temp\440776946da09827ff0ac2f56741c086_JaffaCakes118.exe
        "{path}"
        2⤵
        • Checks computer location settings
        • Adds Run key to start application
        • Suspicious use of WriteProcessMemory
        PID:4516
        • C:\Users\Admin\AppData\Roaming\svchost.exe
          "C:\Users\Admin\AppData\Roaming\svchost.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:916
          • C:\Users\Admin\AppData\Roaming\svchost.exe
            "{path}"
            4⤵
            • Executes dropped EXE
            PID:4304
          • C:\Users\Admin\AppData\Roaming\svchost.exe
            "{path}"
            4⤵
            • Executes dropped EXE
            PID:3968
          • C:\Users\Admin\AppData\Roaming\svchost.exe
            "{path}"
            4⤵
            • Executes dropped EXE
            • Suspicious use of AdjustPrivilegeToken
            PID:3672
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4456,i,2607710392823067546,4648797561512801463,262144 --variations-seed-version --mojo-platform-channel-handle=1304 /prefetch:8
      1⤵
        PID:1880

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\440776946da09827ff0ac2f56741c086_JaffaCakes118.exe.log

        Filesize

        496B

        MD5

        cb76b18ebed3a9f05a14aed43d35fba6

        SHA1

        836a4b4e351846fca08b84149cb734cb59b8c0d6

        SHA256

        8d0edecf54cbbdf7981c8e41a3ed8621503188a87415f9af0fb8d890b138c349

        SHA512

        7631141e4a6dda29452ada666326837372cd3d045f773006f63d9eff15d9432ed00029d9108a72c1a3b858377600a2aab2c9ec03764285c8801b6019babcf21c

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

        Filesize

        49.2MB

        MD5

        ed3726130be0c05562abc95c385f8f34

        SHA1

        222b2539aa30e93fd186a8d852681bab2fd994d9

        SHA256

        bf06ed4c9c9cdd95b0c270d1afe25ef4eaec3c0172c2a81fa738b81112cb4ae4

        SHA512

        f2f35dc7db0043c369298ed0cfabad4995564a27873cf9f1199d97af78297c103b6cdd7a5be7e25795aacbf77287790b1fd968d37f76734d9fb30813c2e2d83e

      • memory/916-33-0x0000000074C40000-0x00000000751F1000-memory.dmp

        Filesize

        5.7MB

      • memory/916-26-0x0000000074C40000-0x00000000751F1000-memory.dmp

        Filesize

        5.7MB

      • memory/916-25-0x0000000074C40000-0x00000000751F1000-memory.dmp

        Filesize

        5.7MB

      • memory/916-23-0x0000000074C40000-0x00000000751F1000-memory.dmp

        Filesize

        5.7MB

      • memory/3096-4-0x0000000074C40000-0x00000000751F1000-memory.dmp

        Filesize

        5.7MB

      • memory/3096-10-0x0000000074C40000-0x00000000751F1000-memory.dmp

        Filesize

        5.7MB

      • memory/3096-0-0x0000000074C42000-0x0000000074C43000-memory.dmp

        Filesize

        4KB

      • memory/3096-3-0x0000000074C42000-0x0000000074C43000-memory.dmp

        Filesize

        4KB

      • memory/3096-2-0x0000000074C40000-0x00000000751F1000-memory.dmp

        Filesize

        5.7MB

      • memory/3096-1-0x0000000074C40000-0x00000000751F1000-memory.dmp

        Filesize

        5.7MB

      • memory/4516-8-0x0000000074C40000-0x00000000751F1000-memory.dmp

        Filesize

        5.7MB

      • memory/4516-9-0x0000000074C40000-0x00000000751F1000-memory.dmp

        Filesize

        5.7MB

      • memory/4516-11-0x0000000074C40000-0x00000000751F1000-memory.dmp

        Filesize

        5.7MB

      • memory/4516-5-0x0000000000400000-0x000000000040C000-memory.dmp

        Filesize

        48KB

      • memory/4516-24-0x0000000074C40000-0x00000000751F1000-memory.dmp

        Filesize

        5.7MB