Analysis

  • max time kernel
    149s
  • max time network
    137s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/09/2024, 03:18

General

  • Target

    ce8606e7c60cfb774504c9874458c695_JaffaCakes118.exe

  • Size

    1.3MB

  • MD5

    ce8606e7c60cfb774504c9874458c695

  • SHA1

    8da1bada7cf387d317159d0d7ab83b7c4a4457a5

  • SHA256

    0981b52fcb3603e4053d92903b8b35dbafaf0e099081774b0a26dfa555b75a4d

  • SHA512

    b8f22ac5e7205b5d2d09fb8b41a4bdf2bc8648c18930f3d18010a84849031289190607bcd9ba917a0007554697af0f1020f04ed4a6616235aa907aa2b1927f55

  • SSDEEP

    24576:04KevxLJj0a9Y4PyZeqsW5JTJ48C70TPmc94+2mQ7v21rwX2dv0pkR86HyW8s+:0mlpYpevWzK8pTPmT+jfvEqF+

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 5 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Installs/modifies Browser Helper Object 2 TTPs 2 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Drops file in System32 directory 7 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • 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 registry class 46 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of SetWindowsHookEx 9 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ce8606e7c60cfb774504c9874458c695_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\ce8606e7c60cfb774504c9874458c695_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:460
    • C:\Users\Admin\AppData\Local\Temp\RarSFX0\rinst.exe
      "C:\Users\Admin\AppData\Local\Temp\RarSFX0\rinst.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2600
      • C:\Users\Admin\AppData\Local\Temp\RarSFX0\catia4.exe
        "C:\Users\Admin\AppData\Local\Temp\RarSFX0\catia4.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:4504
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4504 -s 252
          4⤵
          • Loads dropped DLL
          • Program crash
          PID:2472
      • C:\Windows\SysWOW64\bpk.exe
        C:\Windows\system32\bpk.exe
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Adds Run key to start application
        • Installs/modifies Browser Helper Object
        • Drops file in System32 directory
        • System Location Discovery: System Language Discovery
        • Modifies registry class
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        • Suspicious use of SetWindowsHookEx
        PID:744
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4504 -ip 4504
    1⤵
      PID:4952

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\RarSFX0\bpk.exe

            Filesize

            428KB

            MD5

            850ded5a30b4e5bca781d77c0efcf16d

            SHA1

            cc2554aed78e2eb443a20df97634fbe8931bd276

            SHA256

            e7a53ae81f17e5c4e732e64a5f52c35ab8879abea4f508c0c42c82f5bc0d4a9e

            SHA512

            bb3fd071a5df5608510e65e0655fc12d6a9f933a410a16fd34289654b58ac9abce9f44afdc8edddb291acd4997c588ab7e7a04daf6a617e0ddaf2282d8a268c9

          • C:\Users\Admin\AppData\Local\Temp\RarSFX0\bpkhk.dll

            Filesize

            24KB

            MD5

            9b60660cccada3f585c3e4284195e9c5

            SHA1

            8c21b1490ccc99088a87f6b7495951a320355df1

            SHA256

            c13d3f6a1bb8a9d652eb7802a3b2dbbf31580cbef1983a982d1a4b73ca45693e

            SHA512

            d68baed804995afa41003393e2894f7fb473d63399a24af0ebcd8955b2789b0989372fb7f06a7d2b67a664c4d44e084867e81cc198737da0d0aafefc4e45afca

          • C:\Users\Admin\AppData\Local\Temp\RarSFX0\bpkwb.dll

            Filesize

            40KB

            MD5

            ea84c1f4209e797370ab6e19c8c83b66

            SHA1

            6e00610a3efd07be1c9911181a8ee17da4647f11

            SHA256

            aec793cf2d4a69bf091092f6048cb72f5ea7bea99c039fc4b82ff26f63f97754

            SHA512

            83eaad1b220488dbb59935739e66878d6f29871c692ec5b74ca36ff790e2cb2cfc09ae326ca6e67111b904e2d63bebb7f7b569461e479c892535b4e64d502769

          • C:\Users\Admin\AppData\Local\Temp\RarSFX0\catia4.exe

            Filesize

            1.0MB

            MD5

            48cd21d1cbb7ee76824a0dd5c1172f50

            SHA1

            c689d4fe81365fad9468bc246c893e88eb5049b3

            SHA256

            310bc10e277e6f7992b868ca1e7674c78a625aea22b7ef9e468f0fb3969b02cf

            SHA512

            fde2889cd791bae05ab8daff7b3f8e6d730cf6d408843f904384d1bc0df8f0c5a571c55e59c4ed01d90d1cbe72974ec576b7919a267174a113c789205f91a466

          • C:\Users\Admin\AppData\Local\Temp\RarSFX0\inst.dat

            Filesize

            996B

            MD5

            fdc8b63e09b55ee85772432f071a14a7

            SHA1

            06064838e6cbbda4f124d730fbb3780705e14f0e

            SHA256

            5a9765d473e4f10d68ca988507f586d0524e1d0b7c41f75bfa1308565884cfc5

            SHA512

            cd029e6977013ca2db03fe469022d55e7fee64ef5e756a909c6145a803860b6de41f12d4514f2ea61d3096d936ba0e9dc8bc381bb703faf1309a3340619399c9

          • C:\Users\Admin\AppData\Local\Temp\RarSFX0\pk.bin

            Filesize

            4KB

            MD5

            e39358d6de4c4142ea8bd9b9695c0007

            SHA1

            32df247d80ba8e20af8acf8bfbd0d4009873dd0d

            SHA256

            3713b0cbe936c2088eb4738a40cc90696799490ea49a6ba15fa79a0fc9e954f4

            SHA512

            3686cdab43db7d03ec10288eac86b46e78fb721c9dfe5a350c02c3c435b555ea6f663f09f65644617b9efd38aeaa762f601a8f21adc0446a2da4d66d5189ec54

          • C:\Users\Admin\AppData\Local\Temp\RarSFX0\rinst.exe

            Filesize

            7KB

            MD5

            fbe4bab53f74d3049ef4b306d4cd8742

            SHA1

            6504b63908997a71a65997fa31eda4ae4de013e7

            SHA256

            446658dd5af649857fff445c600f26cdc1d0c19c86a080f312b89b1890182092

            SHA512

            d458ab806a3ed3d1494a13ad8a75df874a0b227cb4f337996cb82df3c4a26dc9c4fe48a664b53b052a4af123ea8d89911d9d9493870e6b5992d5621a32260c2f

          • C:\Windows\SysWOW64\bpk.exe

            Filesize

            428KB

            MD5

            137cb2835b1d91386ac2b1b565c6492d

            SHA1

            acc7213b0b856db29aa6d10b49884c432a05e75f

            SHA256

            a8cea204954ffa11134f0be8ac0fed6c9939b54c369cc7f8312059c0a601c390

            SHA512

            b55cb7be2a077006497aa6cd08459fa9a000bce6eb970a1dd2a28143c3859a1ee26edadb6890d6de848701bbc7c6373ef35f051ebdaaac296e6afc8b32fba688

          • C:\Windows\SysWOW64\bpkhk.dll

            Filesize

            24KB

            MD5

            9ac9028338d1b353a7cacb563bb91df7

            SHA1

            a20c5dee8f05c91686324cec2d5b092bafe58339

            SHA256

            93c0e7f41d5d74217189e4cc2d5cdb8f97d8e5eeef0a0dcf4cecd67e3393682c

            SHA512

            ac83c8f7b6fe913487015d8d7a2e430e917d230b6b2907150f6c4a73bf64c3a02320dddc29fea03db5df8ac5620d8a902fe7be80ba1b1bd1e6f5b8b1b016ddfe

          • C:\Windows\SysWOW64\bpkwb.dll

            Filesize

            40KB

            MD5

            21d4e01f38b5efd64ad6816fa0b44677

            SHA1

            5242d2c5b450c773b9fa3ad014a8aba9b7bb206a

            SHA256

            3285df0c25d4b9b6d5ccbe166a3ce3d04f5cb3a0d61c8bf29bf5f953e51b0977

            SHA512

            77dae941676a56664da89c7670d29ed5402032c8040df1cc231986733c78f0dc56c41f7a276ec9ea8336e3fa2bfc68d3121048e9585bf0d8a98917d799f669b8

          • C:\Windows\SysWOW64\pk.bin

            Filesize

            4KB

            MD5

            7e2193e50e8e85823c403284209fafb2

            SHA1

            deb66e249058fbde3eb92161c9f59500964f24db

            SHA256

            a56f567488026e4b24220220b10c27a11d5fdfa251d03f464400dafba5d7f2c4

            SHA512

            827dc7cf4dda9561e6edcf869ad3f67e5c3f071b7ca2dc172b151d819144476477290cf71051ef89369e8ded400ae7a2483ae677d95144cfb9247aac7ca2f6d2

          • memory/460-0-0x0000000000400000-0x0000000000419000-memory.dmp

            Filesize

            100KB

          • memory/460-51-0x0000000000400000-0x0000000000419000-memory.dmp

            Filesize

            100KB

          • memory/4504-37-0x0000000000760000-0x00000000007B9000-memory.dmp

            Filesize

            356KB