Analysis

  • max time kernel
    146s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/10/2024, 11:05

General

  • Target

    0a58677abe0e7ec3dca0c897f7a462e6_JaffaCakes118.exe

  • Size

    1.9MB

  • MD5

    0a58677abe0e7ec3dca0c897f7a462e6

  • SHA1

    a8c34d62b24a76f1757abb34c0c4a52574a6520c

  • SHA256

    a16371a2a8780503e04066bade11551c07d02f7d294e19282c4c0a4d2d59ce09

  • SHA512

    b4c50d911fa78a56ee2b59becd467010e914b7a34afbc1368707f385cc43fbb3dae9cf2a8dfac581464d19a68acebadc191ea1f24e1499a3ae232c74ae721f22

  • SSDEEP

    49152:7q53vza/N0F9Qqqle9JY4S7pGeaSZxkXLS0LQNxofMsf:Ua/N0DAla2tZ+XLS08aNf

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 20 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • Drops file in System32 directory 4 IoCs
  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in Program Files directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

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

  • Modifies data under HKEY_USERS 41 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 54 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0a58677abe0e7ec3dca0c897f7a462e6_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\0a58677abe0e7ec3dca0c897f7a462e6_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5084
    • C:\Users\Admin\AppData\Local\Temp\TeamViewer.exe
      "C:\Users\Admin\AppData\Local\Temp\TeamViewer.exe" --sQS1 --qsc --pw "YWx0YQ=="
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3592
      • C:\Users\Admin\AppData\Local\Temp\TeamViewer.exe
        "C:\Users\Admin\AppData\Local\Temp\TeamViewer.exe" --sQS1 --qsc --pw "YWx0YQ==" --sQS2
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4760
        • C:\Users\Admin\AppData\Local\Temp\TeamViewer.exe
          "C:\Users\Admin\AppData\Local\Temp\TeamViewer.exe" --sQS1 --qsc --pw "YWx0YQ==" --sQS2 --HostService
          4⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Loads dropped DLL
          • Drops file in System32 directory
          • Drops file in Program Files directory
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          PID:4860

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\SAS.exe

          Filesize

          62KB

          MD5

          bfd3bcb57d73e8a6c645c3f810f5680f

          SHA1

          1469865bb9a625b9aca886cb5328a5abd25ef890

          SHA256

          673126754a5faa4870554bb741b19c043bc9c17bcd842945206d475da31f2f9e

          SHA512

          e1c8a3fff4a8507e78349098fe3590f3ffb57221edd96bb0aea24c198dbb6f1a57a9370df2a6aacb45eb6380401b92f885123bf759ca0dbbede4e34d8cecdea0

        • C:\Users\Admin\AppData\Local\Temp\TeamViewer.exe

          Filesize

          4.3MB

          MD5

          fa9483be99aa85f3186ed92d8d0f1c77

          SHA1

          27adeeab36a53f5375c429c43254f094de7ec581

          SHA256

          5d8ebf535f8e88add810834bdc72ab56dcda6e45e4ecfce88b26addfbfaa1047

          SHA512

          4ad15ea77aee4b7e684b5faffb2cb93959484bae213eb17c58657643b425b93f2ec5842c7551d058acf31707fbf96963f6c621cc00265ca549c909352c6ec542

        • C:\Users\Admin\AppData\Local\Temp\TeamViewer.ini

          Filesize

          478B

          MD5

          75c75c39ce5127e151c41c2924ad5f3d

          SHA1

          071905230a7bfb42495d8c35f47e43087c6b1f0e

          SHA256

          60ab4e04349b128f3ac7d47db0cd92120c6e9e506ede1180927bcf0bbf848367

          SHA512

          0692d7e113bf176a0af23934a1c35bc2ad58cec503be13f7d7f2d755a0bee5e14e4f388e266857981230dad35837329a332c8572766bc14ab810f6a6e5dfb748

        • C:\Users\Admin\AppData\Local\Temp\TeamViewer_Resource_en.DLL

          Filesize

          733KB

          MD5

          0303e77b4604d17a6a1289495fce1648

          SHA1

          07f25c792ce1ff0e75bc7f7e68f667701205afba

          SHA256

          161082374da0c09fa96c33471fc58f033f7d3652566265dee62ea7c2b1c236c8

          SHA512

          11688eb5b2b636487a31f3d0ed264bbeb8a9aaceebc2ee68e1f869edc0d90b16a6b8d9835c173f64c9c2544e11580c22267b9fa0d6852681c812120d9de7f7c6

        • C:\Users\Admin\AppData\Local\Temp\logo.bmp

          Filesize

          78KB

          MD5

          94a21972d56df16bb2ad15bfc4eca1a6

          SHA1

          8e2339c585772032cf0e2065f9a61a9e7cc6df35

          SHA256

          627281020461bb1110c1b1f22c11fb52b1b46d98604fe9aacf43c7b26ea3715d

          SHA512

          f589f0873b121922ad4370148ec2624dca54f30a27dbbffe669de43c9296c8ef8eb3361a14dde81b128c51645d2e079d8f6eea903e9158334c469273eb95d100

        • C:\Users\Admin\AppData\Local\Temp\nszAA6B.tmp\Base64.dll

          Filesize

          456KB

          MD5

          9459a28dbb2752d59eaa8fbb5cf8c982

          SHA1

          4ad7eb230cf6d05df967037225fa19dd385bf7cb

          SHA256

          4688dcd01db816485a770cb8fc047fef9a408f3dbec5a2c83752fee115ce6963

          SHA512

          7dff6414f4215aa4c7a168158b4ac5dd422c7dd35c6af58bce658c6bf9bf5a3545a5ee0db5f5d47a17c7ae53cb54551b98b492137e36c73e684b2041d775cd97

        • C:\Users\Admin\AppData\Local\Temp\nszAA6B.tmp\System.dll

          Filesize

          11KB

          MD5

          00a0194c20ee912257df53bfe258ee4a

          SHA1

          d7b4e319bc5119024690dc8230b9cc919b1b86b2

          SHA256

          dc4da2ccadb11099076926b02764b2b44ad8f97cd32337421a4cc21a3f5448f3

          SHA512

          3b38a2c17996c3b77ebf7b858a6c37415615e756792132878d8eddbd13cb06710b7da0e8b58104768f8e475fc93e8b44b3b1ab6f70ddf52edee111aaf5ef5667

        • C:\Users\Admin\AppData\Local\Temp\nszAA6B.tmp\TvGetVersion.dll

          Filesize

          49KB

          MD5

          49626ee03cff91a643763ced5b363572

          SHA1

          fe921efdab33cbb77587f79b27ce2e65cdc7826d

          SHA256

          d550cbdabdad3e0f3349310e1af077cc06384bd0988350af6887d9c4852c8943

          SHA512

          cdc7a07c150e5b1b4bc4be860d4fc7bd5e452b372a0b541518072eab32e99f97f36abd84f4c6782fe382b0f2ff5cd4131d34a175896d8eb0c36bc45b009faf57

        • C:\Users\Admin\AppData\Local\Temp\nszAA6B.tmp\UAC.dll

          Filesize

          13KB

          MD5

          7191bf2f751c79e50386b87c458ed2da

          SHA1

          30df71f1945f0ece8d396042dba84d92f84dbfb6

          SHA256

          45de80c4ef75ac01fdfca02a0c05c090311cb65b0f52b61e2307494d643466df

          SHA512

          121143369c5edd732a513c884fa90d0ffc03f3966c46f8feccad09591295890de61dec7872e6fd6cd03ae132287bd1dad44d74b45fc8e623a0fa4a647510ca91

        • C:\Users\Admin\AppData\Local\Temp\nszAA6B.tmp\UserInfo.dll

          Filesize

          4KB

          MD5

          1e8e11f465afdabe97f529705786b368

          SHA1

          ea42bed65df6618c5f5648567d81f3935e70a2a0

          SHA256

          7d099352c82612ab27ddfd7310c1aa049b58128fb04ea6ea55816a40a6f6487b

          SHA512

          16566a8c1738e26962139aae893629098dc759e4ac87df3e8eb9819df4e0e422421836bb1e4240377e00fb2f4408ce40f40eee413d0f6dd2f3a4e27a52d49a0b

        • C:\Users\Admin\AppData\Local\Temp\tv.dll

          Filesize

          101KB

          MD5

          6736a9df3e821019fe9ac93651893e2e

          SHA1

          fa67e1503af2677a4004d6ab4bbc65f300987435

          SHA256

          7b59404e1e5a69a19f3866680f3a7db1f12c4a8cbeb6f75e542274ec8263beb6

          SHA512

          a8611455fd36a84d9695f92405665b91a4e3c2ae53333ef9385fb9124f010781a2c5bbce5af5aa945194dc2c192365305ef257ba73b396f145f017202bf048e8

        • memory/3592-78-0x0000000003080000-0x0000000003099000-memory.dmp

          Filesize

          100KB

        • memory/4760-84-0x0000000002C80000-0x0000000002C99000-memory.dmp

          Filesize

          100KB

        • memory/4860-90-0x0000000000DC0000-0x0000000000DD9000-memory.dmp

          Filesize

          100KB

        • memory/5084-47-0x0000000003820000-0x00000000038C0000-memory.dmp

          Filesize

          640KB

        • memory/5084-43-0x0000000003820000-0x00000000038C0000-memory.dmp

          Filesize

          640KB

        • memory/5084-48-0x0000000003820000-0x00000000038C0000-memory.dmp

          Filesize

          640KB

        • memory/5084-70-0x0000000000400000-0x000000000043D000-memory.dmp

          Filesize

          244KB

        • memory/5084-0-0x0000000000400000-0x000000000043D000-memory.dmp

          Filesize

          244KB