Analysis

  • max time kernel
    117s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    17/04/2024, 02:48

General

  • Target

    f4df1bcb7b1745bbdc28439570a2439e_JaffaCakes118.exe

  • Size

    5.3MB

  • MD5

    f4df1bcb7b1745bbdc28439570a2439e

  • SHA1

    b5439e407eccc8f59e2a7312128a5a0469161dd6

  • SHA256

    91a107240d2896f491c087739a715269ef7d955f48e52369001ba08bce178e04

  • SHA512

    f253f4e6513c1b977e3de4f10312e9a39659dfde0197fd28da21a11dca55e5901b390c1933ebace6b537972b0d812ecc8ba5c6c946e36de228129130ced18cbc

  • SSDEEP

    98304:bzGGoevxVSI3yaQ77uM0yRK4CJxVSI3y:dvxryam7rXexry

Score
7/10
upx

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 3 IoCs

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

  • Modifies system certificate store 2 TTPs 6 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f4df1bcb7b1745bbdc28439570a2439e_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\f4df1bcb7b1745bbdc28439570a2439e_JaffaCakes118.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:2776
    • C:\Users\Admin\AppData\Local\Temp\f4df1bcb7b1745bbdc28439570a2439e_JaffaCakes118.exe
      C:\Users\Admin\AppData\Local\Temp\f4df1bcb7b1745bbdc28439570a2439e_JaffaCakes118.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      PID:940

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

    Filesize

    68KB

    MD5

    29f65ba8e88c063813cc50a4ea544e93

    SHA1

    05a7040d5c127e68c25d81cc51271ffb8bef3568

    SHA256

    1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

    SHA512

    e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    344B

    MD5

    f3c5050c7e760438977c8e9e959c49ca

    SHA1

    9e0f81fb0016a6e5c24ff7d5e849074740dc130b

    SHA256

    d74db107c8520bd8359ff16487589d8ae122620d2412489a1de8a4ca4cd331f3

    SHA512

    3eeafeb13e6b78234bc28846a00f455215fcc58b81b53ed80fed3db5827f38ce2f9960e0dc741b8cdd96b2960e5178ba76633f3e261e9df3576884f38f53e18e

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    344B

    MD5

    318d6f6c6eeff97c6d7e677695574a20

    SHA1

    4730bf072174114f61a54b254239b4b12d4dc2db

    SHA256

    898b4b1ef180ec34cdee0670c062d33a07bc2d403086f20740324c8407ea277f

    SHA512

    08ee32c50128600f8799b8c8c47dacb4f044551539f80de79ff2c58f498c4047aee0ed59e5a7a589bbbe8b7b92d207466fa9966d0022eb7856cab2482ae00591

  • C:\Users\Admin\AppData\Local\Temp\Cab95DB.tmp

    Filesize

    65KB

    MD5

    ac05d27423a85adc1622c714f2cb6184

    SHA1

    b0fe2b1abddb97837ea0195be70ab2ff14d43198

    SHA256

    c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

    SHA512

    6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

  • C:\Users\Admin\AppData\Local\Temp\Tar95FE.tmp

    Filesize

    171KB

    MD5

    9c0c641c06238516f27941aa1166d427

    SHA1

    64cd549fb8cf014fcd9312aa7a5b023847b6c977

    SHA256

    4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

    SHA512

    936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

  • C:\Users\Admin\AppData\Local\Temp\Tar97B8.tmp

    Filesize

    177KB

    MD5

    435a9ac180383f9fa094131b173a2f7b

    SHA1

    76944ea657a9db94f9a4bef38f88c46ed4166983

    SHA256

    67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

    SHA512

    1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

  • C:\Users\Admin\AppData\Local\Temp\f4df1bcb7b1745bbdc28439570a2439e_JaffaCakes118.exe

    Filesize

    448KB

    MD5

    596e414ec8fe157d43e89a5c94bcdddb

    SHA1

    fa1f987866707aca690034d0374bdf20c51010fb

    SHA256

    d65f78e083959a9a0bb3a21b5177c29e80e9496dc09d23a28e2bdec8985e4da8

    SHA512

    c100d04122c8bc24bf2a4f83902dc4e02b46158193aa32ae9f2278658cb9cd70077767b319b965745886aa82c32de099d55c00f472bd02b1dd8a901ec862c8d3

  • memory/940-17-0x0000000000400000-0x00000000005F2000-memory.dmp

    Filesize

    1.9MB

  • memory/940-18-0x0000000000400000-0x000000000086A000-memory.dmp

    Filesize

    4.4MB

  • memory/940-20-0x0000000000280000-0x0000000000392000-memory.dmp

    Filesize

    1.1MB

  • memory/940-118-0x0000000000400000-0x000000000086A000-memory.dmp

    Filesize

    4.4MB

  • memory/2776-14-0x0000000000400000-0x00000000005F2000-memory.dmp

    Filesize

    1.9MB

  • memory/2776-0-0x0000000000400000-0x000000000086A000-memory.dmp

    Filesize

    4.4MB

  • memory/2776-16-0x0000000003D30000-0x000000000419A000-memory.dmp

    Filesize

    4.4MB

  • memory/2776-1-0x0000000000400000-0x00000000005F2000-memory.dmp

    Filesize

    1.9MB

  • memory/2776-2-0x00000000002A0000-0x00000000003B2000-memory.dmp

    Filesize

    1.1MB

  • memory/2776-117-0x0000000003D30000-0x000000000419A000-memory.dmp

    Filesize

    4.4MB