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Analysis

  • max time kernel
    120s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    21/04/2024, 09:11

General

  • Target

    fef1d5396d9b36eed20f7f966a5b914b_JaffaCakes118.exe

  • Size

    1.5MB

  • MD5

    fef1d5396d9b36eed20f7f966a5b914b

  • SHA1

    78c6df8a50e2862bf99a62000ed88377b8477a47

  • SHA256

    88e5b30907e248585cbcde4cf4dadee1079f5068847a6368fac83e4a0e7b2722

  • SHA512

    147a7ecb9fc7eaa88419a77654e0c6ed264ff518af001c963caba3e2e659dc5d746265c5505d075352b9ffcb217d00f40455a0032136a2033c755a8097de6799

  • SSDEEP

    24576:U1M13Lm7p0L645/a1gmqjtK1E8PDlYsnMkkYx+ttszumyosYzRo9ogP5H+O2/+BU:Um9LAOG+aamqR2DlYsnMTFLmy4la+h/G

Score
7/10
upx

Malware Config

Signatures

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

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

  • Modifies system certificate store 2 TTPs 9 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\fef1d5396d9b36eed20f7f966a5b914b_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\fef1d5396d9b36eed20f7f966a5b914b_JaffaCakes118.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:2380
    • C:\Users\Admin\AppData\Local\Temp\fef1d5396d9b36eed20f7f966a5b914b_JaffaCakes118.exe
      C:\Users\Admin\AppData\Local\Temp\fef1d5396d9b36eed20f7f966a5b914b_JaffaCakes118.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      PID:2388

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

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\Content\F0ACCF77CDCBFF39F6191887F6D2D357

    Filesize

    1KB

    MD5

    a266bb7dcc38a562631361bbf61dd11b

    SHA1

    3b1efd3a66ea28b16697394703a72ca340a05bd5

    SHA256

    df545bf919a2439c36983b54cdfc903dfa4f37d3996d8d84b4c31eec6f3c163e

    SHA512

    0da8ef4f8f6ed3d16d2bc8eb816b9e6e1345dfe2d91160196c47e6149a1d6aedaafadcefd66acdea7f72dcf0832770192ceac15b0c559c4ccc2c0e5581d5aefc

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

    Filesize

    304B

    MD5

    089cded5aa77669af68af4c77d40ca2d

    SHA1

    d2315ecdb8be81610fbd746454c872c827641b9d

    SHA256

    32ba18c329e85df5255e35a1907685d584a76f894e89190a8578aca0e3ca858d

    SHA512

    f3ce9ccfd730bb9dcce8c01f44581d92f4ca8a18a579f1e41cc69b5b494d7c2135f9419cdbbfeb90c5ae469228fc567823536ecbb1624645463106ab1e2cfe81

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

    Filesize

    304B

    MD5

    7571b014c86864b6be717780c26989ed

    SHA1

    5b990d749937579cc284ccbe982f248f375d4e9d

    SHA256

    1f45ee4a250524e6cf7dafd02771b6e72f16e3ec8ddf958017b3b5442e592fc7

    SHA512

    bfc67ad87b692d37efb05edfe1faff3fe94e04f57e1ef7285bf8d1915671c37b80b0c4d3239d70c35d3f5a855950702f2aa5bc4178d49eda48289844eabbafe9

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\F0ACCF77CDCBFF39F6191887F6D2D357

    Filesize

    242B

    MD5

    cd9f1a14ed51459e9b755054f43ef2d9

    SHA1

    fb55f5daaaba17e868275f44ef92ffca71371bdb

    SHA256

    7a97b2ee61cb3157d773afad2da142db5599bc55e204eef8b2ae46d918fcdedd

    SHA512

    143b5ce6a0f5191237c275c9bc114e0c12b9541438f1d3847496ca2e0f2c2769deada8dda4042bc10cfb37483cf101cf80446906527bb84f002a477f3f923734

  • C:\Users\Admin\AppData\Local\Temp\Tar2C72.tmp

    Filesize

    177KB

    MD5

    435a9ac180383f9fa094131b173a2f7b

    SHA1

    76944ea657a9db94f9a4bef38f88c46ed4166983

    SHA256

    67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

    SHA512

    1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

  • \Users\Admin\AppData\Local\Temp\fef1d5396d9b36eed20f7f966a5b914b_JaffaCakes118.exe

    Filesize

    1.5MB

    MD5

    91e393579117d74426f99639b73e8898

    SHA1

    a5ffbf286ba28a97b4df34554934b37fc42f3136

    SHA256

    26169ee4d35182db68b562f942f98269aa56319c3aeb195735c99fce7eb6bfc8

    SHA512

    2cfb4abb864c8ae13bccb4d228e150f1637f8c79ac57d14301b216a1a9cbb9319da5dd143eb9c9ff2362c514bffdf2a8570803a7777fd15f59958442607d8453

  • memory/2380-14-0x0000000003510000-0x00000000039FF000-memory.dmp

    Filesize

    4.9MB

  • memory/2380-13-0x0000000000400000-0x000000000062A000-memory.dmp

    Filesize

    2.2MB

  • memory/2380-0-0x0000000000400000-0x00000000008EF000-memory.dmp

    Filesize

    4.9MB

  • memory/2380-2-0x0000000000130000-0x0000000000263000-memory.dmp

    Filesize

    1.2MB

  • memory/2380-1-0x0000000000400000-0x000000000062A000-memory.dmp

    Filesize

    2.2MB

  • memory/2380-169-0x0000000003510000-0x00000000039FF000-memory.dmp

    Filesize

    4.9MB

  • memory/2388-16-0x0000000000400000-0x000000000062A000-memory.dmp

    Filesize

    2.2MB

  • memory/2388-23-0x0000000000400000-0x000000000061D000-memory.dmp

    Filesize

    2.1MB

  • memory/2388-25-0x0000000003550000-0x000000000377A000-memory.dmp

    Filesize

    2.2MB

  • memory/2388-19-0x00000000002C0000-0x00000000003F3000-memory.dmp

    Filesize

    1.2MB

  • memory/2388-17-0x0000000000400000-0x00000000008EF000-memory.dmp

    Filesize

    4.9MB

  • memory/2388-170-0x0000000000400000-0x00000000008EF000-memory.dmp

    Filesize

    4.9MB