Analysis

  • max time kernel
    150s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    02-07-2024 11:31

General

  • Target

    1f2bc22634d3d30a45879cfacf171c67_JaffaCakes118.exe

  • Size

    618KB

  • MD5

    1f2bc22634d3d30a45879cfacf171c67

  • SHA1

    f00d75f529c7c53c9f5a676fcd2c464149fe9e92

  • SHA256

    81f8d51c8e5571fac8dc824ca41b4d913bf6ee8165371116ba5effbd25081d4c

  • SHA512

    4675887e1398fa79720e56a51f90ed2730fa06b9a098d233c7f121b8e5f6e8ccaa582a96c0ffa1afe428cae794a2f1802322bbb8e485e42ff65886067546738d

  • SSDEEP

    6144:tu5DP/fSeORzGD2c9fueTJ8teS/5YPMDdwuMks2itNnAfFuNuNuNuNuNufks2itB:OD/s6D2c9fuCejBuwdaOfrOfO

Malware Config

Signatures

  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1f2bc22634d3d30a45879cfacf171c67_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\1f2bc22634d3d30a45879cfacf171c67_JaffaCakes118.exe"
    1⤵
    • Loads dropped DLL
    • Modifies system executable filetype association
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:3016
    • C:\Users\Admin\AppData\Local\Temp\3582-490\1f2bc22634d3d30a45879cfacf171c67_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\1f2bc22634d3d30a45879cfacf171c67_JaffaCakes118.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:3056

Network

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Event Triggered Execution

1
T1546

Change Default File Association

1
T1546.001

Privilege Escalation

Event Triggered Execution

1
T1546

Change Default File Association

1
T1546.001

Defense Evasion

Modify Registry

1
T1112

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

System Information Discovery

1
T1082

Collection

Data from Local System

1
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\MSOCache\ALLUSE~1\{90140~1\DW20.EXE
    Filesize

    859KB

    MD5

    beb6dae71186da2adfa2e5671bcfd154

    SHA1

    2c520dfe3490772dfc6bbc2783c5114ca303d39d

    SHA256

    832b42331ca55ce423a4556827cfacdca82c6dbef771619a28b965ef5c62b815

    SHA512

    002423a98f74c7f1244fa9caa06e82cecec67d6bf2c721c7cfb7deaf5995e5ba89ff0ce19c9f5294f0fea608753afdac0c324f194e76c0cac4b835de38fcd09e

  • \PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE
    Filesize

    252KB

    MD5

    9e2b9928c89a9d0da1d3e8f4bd96afa7

    SHA1

    ec66cda99f44b62470c6930e5afda061579cde35

    SHA256

    8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

    SHA512

    2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

  • \Users\Admin\AppData\Local\Temp\3582-490\1f2bc22634d3d30a45879cfacf171c67_JaffaCakes118.exe
    Filesize

    578KB

    MD5

    d44b5e347b86054701432df48baec160

    SHA1

    35a25f59fa9634c1f8e477364ea7065ac845675a

    SHA256

    feda6d303e901024da13d03f0669fcc990839cb565ee1750ebf43a64b167d07a

    SHA512

    dd001264a5cfe9792f4e35169b886dc25a6566e15be6d1009e4be5dbd2a7715394d3fc71eceaa2855b4984ea67425be3bb95c54a0183ec1b8bb0659243292c1e

  • memory/3016-85-0x0000000000400000-0x000000000041B000-memory.dmp
    Filesize

    108KB

  • memory/3016-87-0x0000000000400000-0x000000000041B000-memory.dmp
    Filesize

    108KB