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Analysis

  • max time kernel
    94s
  • max time network
    138s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/07/2024, 06:02

General

  • Target

    33929a2f7bb42c26efc5c86d7189177a_JaffaCakes118.exe

  • Size

    262KB

  • MD5

    33929a2f7bb42c26efc5c86d7189177a

  • SHA1

    d7e9fc2969882e576364e471a164ce7e2a2eef57

  • SHA256

    1eece024b47f751c367f15335f1907ed226404bec0741426fab6d268fdf1a453

  • SHA512

    cfbbc6410f110db85db32b0804fc814ac5605eba0d6c9258a348311cbcbdbaa1669bb1a9476ff99dbe64015d68726661f15480f3151598848988bda3b85a6280

  • SSDEEP

    6144:Be346i+75+ZPPfnE2Qyn20UATyniR1E2OGPCXiu75+ZPPfnE2Qyn20U:Si+F+ZPPfnEUnPTKiUhGaiuF+ZPPfnEG

Malware Config

Signatures

  • ACProtect 1.3x - 1.4x DLL software 2 IoCs

    Detects file using ACProtect software.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 10 IoCs
  • UPX packed file 2 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Installs/modifies Browser Helper Object 2 TTPs 3 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 4 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\33929a2f7bb42c26efc5c86d7189177a_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\33929a2f7bb42c26efc5c86d7189177a_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:376
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\system32\regsvr32.exe /s "C:\Program Files (x86)\EasyOn\EasyOn.dll"
      2⤵
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • Modifies Internet Explorer settings
      • Modifies registry class
      PID:3684
    • C:\Program Files (x86)\EasyOn\EasyOn.exe
      "C:\Program Files (x86)\EasyOn\EasyOn.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2420
      • C:\Windows\SysWOW64\regsvr32.exe
        regsvr32 /s "C:\Program Files (x86)\EasyOn\EasyOn.dll"
        3⤵
        • Loads dropped DLL
        • Installs/modifies Browser Helper Object
        • Modifies Internet Explorer settings
        • Modifies registry class
        PID:1100
    • C:\Windows\SysWOW64\explorer.exe
      C:\Windows\system32\explorer.exe
      2⤵
      • Deletes itself
      PID:540

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files (x86)\EasyOn\EasyOn.dll

    Filesize

    126KB

    MD5

    b8d58e3a0587f0015e5ef6e611444f30

    SHA1

    181d12bc03b329f4ddd4f85f792b2f0a7b9d147a

    SHA256

    41321b02a4922ab9911e340c190eead9e17d5f56590921953b0658958e1bfba8

    SHA512

    b2e1c3f4ec7e1f468fd8e4d190a17268f2008dfc8e8a68e45b6a109cb98322c5363d49d5aaf8e76cf38c7fc1e813179f776dd90ad6ae55b6b46ddbafe1b56434

  • C:\Program Files (x86)\EasyOn\EasyOn.exe

    Filesize

    38KB

    MD5

    e95bc409a64ea9a611bf6df227eb7e3c

    SHA1

    9388530cf6d248c1c73cee05a2d66c77a1cbcac4

    SHA256

    9bf1cea5efcecb3dd7f28c3d6359037807b3379aeb82f154c27e1f84c3286f3a

    SHA512

    a5220d93b3c94d158e33b8d01fa2dc18dbf029ebd70871351b3b1c0fa6225d42e419122ecc0d0a12abecd3d42a90ab87793f239c21c63afcf05d6b2e10bc550e

  • C:\Users\Admin\AppData\Local\Temp\nso7679.tmp\IpConfig.dll

    Filesize

    114KB

    MD5

    a3ed6f7ea493b9644125d494fbf9a1e6

    SHA1

    ebeee67fb0b5b3302c69f47c5e7fca62e1a809d8

    SHA256

    ec0f85f8a9d6b77081ba0103f967ef6705b547bf27bcd866d77ac909d21a1e08

    SHA512

    7099e1bc78ba5727661aa49f75523126563a5ebccdff10cabf868ce5335821118384825f037fbf1408c416c0212aa702a5974bc54d1b63c9d0bcade140f9aae1

  • C:\Users\Admin\AppData\Local\Temp\nso7679.tmp\NSISdl.dll

    Filesize

    14KB

    MD5

    a5f8399a743ab7f9c88c645c35b1ebb5

    SHA1

    168f3c158913b0367bf79fa413357fbe97018191

    SHA256

    dacc88a12d3ba438fdae3535dc7a5a1d389bce13adc993706424874a782e51c9

    SHA512

    824e567f5211bf09c7912537c7836d761b0934207612808e9a191f980375c6a97383dbc6b4a7121c6b5f508cbfd7542a781d6b6b196ca24841f73892eec5e977

  • C:\Users\Admin\AppData\Local\Temp\nso7679.tmp\SelfDel.dll

    Filesize

    4KB

    MD5

    7cff7fe2caea5184d98c147e7e263132

    SHA1

    21f39d3d0dd5f7198d67ef30e95d10ae3460093e

    SHA256

    281c39b733579e031c62bdd247b41543ece1fe3bd6eda26fc8ad474b10f33101

    SHA512

    fb1161b8571d1d0c67e2df0d571b08f5e7a73f81409aed847344154d02406910629181bcce4e18e998ec472f51a6a1b40d956a010abdd10e850413aafa87808a

  • C:\Users\Admin\AppData\Local\Temp\nso7679.tmp\UAC.dll

    Filesize

    13KB

    MD5

    29858669d7da388d1e62b4fd5337af12

    SHA1

    756b94898429a9025a04ae227f060952f1149a5f

    SHA256

    c24c005daa7f5578c4372b38d1be6be5e27ef3ba2cdb9b67fee15cac406eba62

    SHA512

    6f4d538f2fe0681f357bab73f633943c539ddc1451efa1d1bb76d70bb47aa68a05849e36ae405cc4664598a8194227fa7053de6dbce7d6c52a20301293b3c85f

  • C:\Users\Admin\AppData\Local\Temp\nso7679.tmp\nsProcess.dll

    Filesize

    4KB

    MD5

    05450face243b3a7472407b999b03a72

    SHA1

    ffd88af2e338ae606c444390f7eaaf5f4aef2cd9

    SHA256

    95fe9d92512ff2318cc2520311ef9145b2cee01209ab0e1b6e45c7ce1d4d0e89

    SHA512

    f4cbe30166aff20a226a7150d93a876873ba699d80d7e9f46f32a9b4753fa7966c3113a3124340b39ca67a13205463a413e740e541e742903e3f89af5a53ad3b

  • memory/376-31-0x0000000002F60000-0x0000000002F86000-memory.dmp

    Filesize

    152KB

  • memory/376-50-0x0000000074780000-0x0000000074789000-memory.dmp

    Filesize

    36KB