Analysis

  • max time kernel
    150s
  • max time network
    130s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-05-2024 03:30

General

  • Target

    65dbdfc8e2eaf077394f57dad0349e8a_JaffaCakes118.exe

  • Size

    512KB

  • MD5

    65dbdfc8e2eaf077394f57dad0349e8a

  • SHA1

    64890ebe71e1c05abc1aa96277c97edb636d4bb6

  • SHA256

    d0df230c971d10986703b4f0846b255b3aecbbaf4cd6317cc3eea3215ce38893

  • SHA512

    327426677b93ebcb1f29da78169f1e3fb880834fd52a46cce5fca91697024d80a139a4a6f8181115f10e3466af4b5d2253260efe5a818fb89b515cf60e9cbc53

  • SSDEEP

    6144:1VY0W0sVVZ/dkq5BCoFaJ2i5Lf24C07N5OvSLTUF6pQxI6Upe2cBnTu19bcodj6r:1gDhdkq5BCoC5LfWSLTUQpr2Zu19Qm5o

Malware Config

Signatures

  • Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 5 IoCs
  • Disables RegEdit via registry modification 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 5 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Windows security modification 2 TTPs 6 IoCs
  • Adds Run key to start application 2 TTPs 3 IoCs
  • Enumerates connected drives 3 TTPs 64 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Modifies WinLogon 2 TTPs 2 IoCs
  • AutoIT Executable 9 IoCs

    AutoIT scripts compiled to PE executables.

  • Drops file in System32 directory 12 IoCs
  • Drops file in Program Files directory 14 IoCs
  • Drops file in Windows directory 19 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies registry class 20 IoCs
  • Suspicious behavior: AddClipboardFormatListener 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of FindShellTrayWindow 18 IoCs
  • Suspicious use of SendNotifyMessage 18 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\65dbdfc8e2eaf077394f57dad0349e8a_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\65dbdfc8e2eaf077394f57dad0349e8a_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Drops file in System32 directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1448
    • C:\Windows\SysWOW64\kecihdccvy.exe
      kecihdccvy.exe
      2⤵
      • Modifies visibility of file extensions in Explorer
      • Modifies visiblity of hidden/system files in Explorer
      • Windows security bypass
      • Disables RegEdit via registry modification
      • Executes dropped EXE
      • Windows security modification
      • Enumerates connected drives
      • Modifies WinLogon
      • Drops file in System32 directory
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:3500
      • C:\Windows\SysWOW64\tgguqrng.exe
        C:\Windows\system32\tgguqrng.exe
        3⤵
        • Executes dropped EXE
        • Enumerates connected drives
        • Drops file in System32 directory
        • Drops file in Program Files directory
        • Drops file in Windows directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:2804
    • C:\Windows\SysWOW64\ntyyjkhzwnufnkx.exe
      ntyyjkhzwnufnkx.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:3284
    • C:\Windows\SysWOW64\tgguqrng.exe
      tgguqrng.exe
      2⤵
      • Executes dropped EXE
      • Enumerates connected drives
      • Drops file in System32 directory
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2900
    • C:\Windows\SysWOW64\oluwrgvpsluwe.exe
      oluwrgvpsluwe.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2268
    • C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
      "C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Windows\mydoc.rtf" /o ""
      2⤵
      • Drops file in Windows directory
      • Checks processor information in registry
      • Enumerates system info in registry
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious use of SetWindowsHookEx
      PID:4128

Network

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Defense Evasion

Hide Artifacts

2
T1564

Hidden Files and Directories

2
T1564.001

Modify Registry

6
T1112

Impair Defenses

2
T1562

Disable or Modify Tools

2
T1562.001

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

4
T1012

System Information Discovery

5
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

1
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLN.DOC.exe
    Filesize

    512KB

    MD5

    231e4efaa73d93960d49eb9150ef9c28

    SHA1

    7832c004f412d7c7c9f582ca4ade6d72a8df99f2

    SHA256

    83f8b579405722557460b3a6b4ee89deaae995ec0ce2733c3a735860ec57b17d

    SHA512

    54b217a0590d1a9c3afb9b51d82ddf1dfc88c977b0d2ece7193a42ea6a3ab0ed4ea624bcb8ccb3495c9a69eb51e2f7f140de8e5ce3f6b7dd6ba4a00d884b809b

  • C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLV.DOC.exe
    Filesize

    512KB

    MD5

    2823307c6aa22ff44846cf9c1e26e084

    SHA1

    8d86c226730afcdce0894367291487fd43819023

    SHA256

    60c19e39e1b25ddef46590a98b6eaa7c449330a79ca66b88de35ef4548903ff9

    SHA512

    48fb18e6e1d8d29fda1ff19431cf65abe4480c5c1ea574f5c6a4e313dfaef3cb76b3ed5bbeafffdbfd002fb9269df04a9dc5139bcceaca5d4e7aa34f12a56ccc

  • C:\Users\Admin\AppData\Local\Temp\TCD7369.tmp\sist02.xsl
    Filesize

    245KB

    MD5

    f883b260a8d67082ea895c14bf56dd56

    SHA1

    7954565c1f243d46ad3b1e2f1baf3281451fc14b

    SHA256

    ef4835db41a485b56c2ef0ff7094bc2350460573a686182bc45fd6613480e353

    SHA512

    d95924a499f32d9b4d9a7d298502181f9e9048c21dbe0496fa3c3279b263d6f7d594b859111a99b1a53bd248ee69b867d7b1768c42e1e40934e0b990f0ce051e

  • C:\Users\Admin\AppData\Roaming\Microsoft\Office\Recent\index.dat
    Filesize

    239B

    MD5

    166fdc3c304b27dd401318b685730478

    SHA1

    b451d2af03855448cba70103c40d496bba2d04d8

    SHA256

    a85553875594718a2c06e88eb175fc781d624d3e94dbaebb601e69d04fa2d725

    SHA512

    ec4abfa47afb4d4e9cc3e5190cba71b2017bf789d42e16545241709dcb5ee628027e6f650c00024c7b5599f372cb6c4876519bfcc8f1231bf212f2e02d1dbf1f

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\fb3b0dbfee58fac8.customDestinations-ms
    Filesize

    3KB

    MD5

    22b33be3ecc87d39484b809c304f19f4

    SHA1

    86d5d83d5060fe818fbd4d81c689325ce30c3b7c

    SHA256

    6c339c938c22257ebffb0f1fe4064dec9743a731b3727201c257e2f5d93fbba9

    SHA512

    6942b1920a2825dfe67cbbca685d25e15cf489b10a7203c8a87cb1d0d92ea0c5c67cea6079a94f78f92d29bee1870ece4533265713f1678e013d2531850c9637

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\fb3b0dbfee58fac8.customDestinations-ms
    Filesize

    3KB

    MD5

    4936118aef34df2e64534e640f1ed845

    SHA1

    a5883481793ed34668c1bc9facd4bec94cad4478

    SHA256

    3719635fa7a9672739bb499243e07910e34e485c2fff29f341d7bf257b470e2f

    SHA512

    2923cdf943b40fed4c6af4b6b07de9acad3f7ad3ee8a347ba0c23fc9053133b049ba6115d91c6bce40e0659ec40b2da4fe15e3cf0ac3f1af9b7266118488ca20

  • C:\Windows\SysWOW64\kecihdccvy.exe
    Filesize

    512KB

    MD5

    33a77372778d0f8e6e3166c6bb94d122

    SHA1

    c7cdb53213d0a1e52015b9fb004b27340a720eb6

    SHA256

    d7abd7765f62749a2142ffc500e5ba4ae3b32e5da4ec95dc52a490a83b8e683f

    SHA512

    736f4b4d9da9f0e2911d42f01c60f2df7293e59068e97d5bcb09217e38bed20b4aef787de4cf034628b18dfb19999517a200c12df92a8f436eed72bf3f95711e

  • C:\Windows\SysWOW64\ntyyjkhzwnufnkx.exe
    Filesize

    512KB

    MD5

    ce37f44cf8e74dbba2506bab8a1ab9a2

    SHA1

    3f2e00a92891414de33e2330c0e94aaa7c9b5c57

    SHA256

    b561b5d06bc0b32197215b86f94c765be4dbc28f1cb1aff294b3f9a16754f107

    SHA512

    8f172a6c7a5975dd249b91079f84523a1f027e691a0abff5fd8a7bd8bbe550bc1464268d84bf2755a2b60a316d8f55e0e3960b1ace18eee573de8d1f75eda6a1

  • C:\Windows\SysWOW64\oluwrgvpsluwe.exe
    Filesize

    512KB

    MD5

    a30f43ba6001dcb33427fbf38380834c

    SHA1

    b11ad1aa90440503896b04f75803717dd776b710

    SHA256

    9461b6fe0f6774084a2990ed2325e6eb8ccc0f683b207a9f92ad4b9784de418f

    SHA512

    e61dc249166a0f2aa61753b64b45aca2d3fea046dbd2fe2d68d3b906b9e39d461e170f7c1e22031d2cf83db1a7082a358ecc26b8ba70006445546583c3e8efec

  • C:\Windows\SysWOW64\tgguqrng.exe
    Filesize

    512KB

    MD5

    71ba88f0b1687f72e5856d3bdf40bbfc

    SHA1

    c1be6d809aba2bb4b7b623354e7df421cfcc871d

    SHA256

    260fab033460dac2e98a1dc390592e08890fb956e5a19bb8bfeb987f142db0a7

    SHA512

    ea351863490937aa26aeb0fe49e79d5d7d15ebdb4e642f7b5f7be461402143b16da09136de765c2401b3967e49d1c8e724b7598e492d196b9df30ab2c853c20d

  • C:\Windows\mydoc.rtf
    Filesize

    223B

    MD5

    06604e5941c126e2e7be02c5cd9f62ec

    SHA1

    4eb9fdf8ff4e1e539236002bd363b82c8f8930e1

    SHA256

    85f2405d1f67021a3206faa26f6887932fea71aea070df3efb2902902e2d03e2

    SHA512

    803f5f2fddbf29fef34de184eb35c2311b7a694740983ca10b54ef252dd26cda4987458d2569f441c6dedc3478bea12b45bfd3566f1b256504a0869ad3829df7

  • \??\c:\Windows\SysWOW64\MSDRM\MsoIrmProtector.doc.exe
    Filesize

    512KB

    MD5

    534870bbc2e5821bc4d92d5f6ba5e167

    SHA1

    fec0256fe77caa3fd0811f73160cd5a0869970a3

    SHA256

    9fc2a4148a2626e28e41935faaa33e0564edc315f545ad06edd8bd3001d9372f

    SHA512

    bcbc4bd296f855505ae168b66b7e75240b5644be1f5f9f18d8903e0a8f93f8025305e56586810f71d7fae5e6e2ba970ef9e05faa073674b76e95550d8633824d

  • \??\c:\Windows\SysWOW64\MSDRM\MsoIrmProtector.doc.exe
    Filesize

    512KB

    MD5

    62ac958e95a19507800816f43a04a23a

    SHA1

    340b4d2e79d9603001e61b2f296e37e65471ce86

    SHA256

    187440ac9350b021b3f7b76d5f461d4dcb07bdb81ddd1d5ce5f5fe0fea1b6aca

    SHA512

    5d02c81b02b4e7cc3d6dbd28179d623d290302cff5b73b5fdc0b55c3e06d69df7f4fb9c9da7e4cda135398783d911bf6bb020ecf6106319d074d9de94682ce1b

  • memory/1448-0-0x0000000000400000-0x0000000000496000-memory.dmp
    Filesize

    600KB

  • memory/4128-38-0x00007FF970470000-0x00007FF970480000-memory.dmp
    Filesize

    64KB

  • memory/4128-42-0x00007FF96E3B0000-0x00007FF96E3C0000-memory.dmp
    Filesize

    64KB

  • memory/4128-35-0x00007FF970470000-0x00007FF970480000-memory.dmp
    Filesize

    64KB

  • memory/4128-37-0x00007FF970470000-0x00007FF970480000-memory.dmp
    Filesize

    64KB

  • memory/4128-39-0x00007FF970470000-0x00007FF970480000-memory.dmp
    Filesize

    64KB

  • memory/4128-40-0x00007FF96E3B0000-0x00007FF96E3C0000-memory.dmp
    Filesize

    64KB

  • memory/4128-36-0x00007FF970470000-0x00007FF970480000-memory.dmp
    Filesize

    64KB

  • memory/4128-598-0x00007FF970470000-0x00007FF970480000-memory.dmp
    Filesize

    64KB

  • memory/4128-597-0x00007FF970470000-0x00007FF970480000-memory.dmp
    Filesize

    64KB

  • memory/4128-599-0x00007FF970470000-0x00007FF970480000-memory.dmp
    Filesize

    64KB

  • memory/4128-600-0x00007FF970470000-0x00007FF970480000-memory.dmp
    Filesize

    64KB