General

  • Target

    Rebel.7z

  • Size

    8.1MB

  • Sample

    241201-thcvxszncn

  • MD5

    4a8429dd823216bda95f67f85483a8d9

  • SHA1

    77640784d85848c945820d37794839f346f138d2

  • SHA256

    cef9230ad3111e4a233e61b49ac977d4d25849061a90b05c3e7d6f308022b4de

  • SHA512

    1d4d41cee280c62657b17c2ddc11fc7ce6bab42204d94fe05eed263d139765c19dfd16f2fde4b4e5e8b925c39945c3208600a2bfad941e4723d3bfeb7c30b91a

  • SSDEEP

    196608:15bVwZ4n4D4PLSFpJah2Hc4sEYcGijKseRAKvpZheSaE:155EAWpSt/DcFjqRAKvnhpd

Malware Config

Extracted

Family

asyncrat

Botnet

Default

C2

127.0.0.1:6606

127.0.0.1:7707

127.0.0.1:8808

Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain

Targets

    • Target

      Rebel/Bin/Injector.exe

    • Size

      4.8MB

    • MD5

      8da7ffaee1e5988d56e536d37a5e5d7d

    • SHA1

      ed799e5ec866ec3dff0bffb306de4b1ab2ca2361

    • SHA256

      7450c90fad1d9ed73652c7fee391adb41ee2c62d5d43f3bdcab945e3fdec5485

    • SHA512

      34579bfbee7ec802322b12cc91276dc440d2df63d8e02b55ec303a19b4a198810a97157cf82739d0c30a509928d797142cee133aec994f0c8f5c58c5a6aebd16

    • SSDEEP

      98304:2sscM3M0egRUUYdiVF0Zx5NMEuRdvwp1cpY1t83Szkkak0jIiGELfHNz:Vrf0egyUKiVF0rF+dmcQtQSzkkakuR7V

    Score
    5/10
    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Target

      Rebel/Bin/Rebel.dll

    • Size

      8.6MB

    • MD5

      660d2429fc5f088bd197fb0958303936

    • SHA1

      4189d1ba115f9e00caceb286f22655c6988e1eb6

    • SHA256

      c9b95b9204234edfab46912d21953e3a6985a6b7d50c4fd63372e3d5361c7f3d

    • SHA512

      9875fff045460f77dfc21cecd1de326d67778efd12fe8f53fc09bacfec807a9309752ed4bbb23653060fbee9152dd7c9a9bfda3a0c13c0375a1db932a02a197d

    • SSDEEP

      98304:kz+S5QwKbQLCsjIpdUqsQf3/sfRMyxl5dn5Sz29f49EzFgfVp+t:WrS2LXjIpyDS3/0aWfmC

    Score
    1/10
    • Target

      Rebel/FastColoredTextBox.dll

    • Size

      323KB

    • MD5

      8610f4d3cdc6cc50022feddced9fdaeb

    • SHA1

      4b60b87fd696b02d7fce38325c7adfc9e806f650

    • SHA256

      ac926c92ccfc3789a5ae571cc4415eb1897d500a79604d8495241c19acdf01b9

    • SHA512

      693d1af1f89470eab659b4747fe344836affa0af8485b0c0635e2519815e5a498f4618ea08db9dcf421aac1069a04616046207ee05b9ed66c0a1c4a8f0bddd09

    • SSDEEP

      6144:0R0J4lx4/7BA4xvNdcwCOg04j0y5mwZkdmsqmLDi5eNH+Dl1SIP0:0R0J48lAovNd7CO34D4b4eNO

    Score
    1/10
    • Target

      Rebel/RebelCracked.exe

    • Size

      344KB

    • MD5

      a84fd0fc75b9c761e9b7923a08da41c7

    • SHA1

      2597048612041cd7a8c95002c73e9c2818bb2097

    • SHA256

      9d9a79f4ae9bf7a992945f6c06c5bec642c05e4e828217c50255dabfa3677006

    • SHA512

      a17f1144a0e3ce07c7ed6891987c5b969f291e9991442c33750028d35e2194794e8a649c397e8afc9f8ce19d485c453600c75cab4fcead09e38414d85819251a

    • SSDEEP

      6144:lOcpeK8lucxAtLNFHUVuI/2zj1z6jZ755NofmWx4PCQL23wBw7R0ljTwrVuAdJKp:QcpSnx0LNFDQ60Ntbo5d7gBw7R7rbdJk

    • AsyncRat

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

    • Asyncrat family

    • StormKitty

      StormKitty is an open source info stealer written in C#.

    • StormKitty payload

    • Stormkitty family

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Drops desktop.ini file(s)

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Looks up geolocation information via web service

      Uses a legitimate geolocation service to find the infected system's geolocation info.

    • Suspicious use of SetThreadContext

    • Target

      Rebel/System.CodeDom.dll

    • Size

      30KB

    • MD5

      59c830ac0d99f8c906292de85f804b84

    • SHA1

      68b6740e6ce97de8b1398f3a6e320940a0e16458

    • SHA256

      e8c88b0448083663910587efeacb6a1977749fe3ffe83b263fc01f7b63d7dfd2

    • SHA512

      4028fa6b68eb3a48bb9625e6755c8e3022283694bb603905af3db54c31bc2f7291aec11f7c42a033703f84c3ff265a19416eb8798058cc42ee3c14c633e9588f

    • SSDEEP

      384:FuE8ujCiLMTPji3h8241EEqYC0iIcwBxehzsCtZ7U6r1fDMqyt5/WduWTTb2HRNq:FDBCi4TWaveEqYChzZpgRoj/iP9zgBV

    Score
    1/10

MITRE ATT&CK Enterprise v15

Tasks