Analysis

  • max time kernel
    190s
  • max time network
    167s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    02-12-2022 14:41

General

  • Target

    9880eead082d56cf61fa8a999a9956debb4b0cc18a41f6fde15bb2d445fcfb03.exe

  • Size

    812KB

  • MD5

    a68ac326894a3d62dfc171d8eb6da09e

  • SHA1

    0868af8f604f4f3a421f4c5d324e7ca2a4d69a29

  • SHA256

    9880eead082d56cf61fa8a999a9956debb4b0cc18a41f6fde15bb2d445fcfb03

  • SHA512

    1e70876efc3a3122626ef18d8f1da948286066d96956bc8628cc2a373e1552ce71e2992ace68241a6cd5d160edc02d2541d82ee3e4be376ca1c376d1a11eb3c6

  • SSDEEP

    24576:cizlBXw7GFa0rgCWuH1FWV1JboJvjAvjcvjf:FBXlCUh

Malware Config

Signatures

  • Detect Neshta payload 4 IoCs
  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • 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 3 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). Likely ransomware behaviour.

  • Modifies registry class 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9880eead082d56cf61fa8a999a9956debb4b0cc18a41f6fde15bb2d445fcfb03.exe
    "C:\Users\Admin\AppData\Local\Temp\9880eead082d56cf61fa8a999a9956debb4b0cc18a41f6fde15bb2d445fcfb03.exe"
    1⤵
    • Modifies system executable filetype association
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:1104
    • C:\Users\Admin\AppData\Local\Temp\3582-490\9880eead082d56cf61fa8a999a9956debb4b0cc18a41f6fde15bb2d445fcfb03.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\9880eead082d56cf61fa8a999a9956debb4b0cc18a41f6fde15bb2d445fcfb03.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of SetWindowsHookEx
      PID:876

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Change Default File Association

1
T1042

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

System Information Discovery

1
T1082

Collection

Data from Local System

1
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\3582-490\9880eead082d56cf61fa8a999a9956debb4b0cc18a41f6fde15bb2d445fcfb03.exe
    Filesize

    771KB

    MD5

    86a8b3d698b231192b72e5de3c8059ff

    SHA1

    8f220fd2870aa6eea2d653f402150c901cf7a17c

    SHA256

    d234ab97c05870089bc97e500d0cf768ae69e25d7692e020d61e696733c54e7c

    SHA512

    5073a31405edab7ee492b84a3f4cf845a844f3e05a28a887dcd96a5a25af31c2741b84496260eb274a3445144c3d4674401180c9c77f68635d739286b63bc1db

  • C:\Users\Admin\AppData\Local\Temp\3582-490\9880eead082d56cf61fa8a999a9956debb4b0cc18a41f6fde15bb2d445fcfb03.exe
    Filesize

    771KB

    MD5

    86a8b3d698b231192b72e5de3c8059ff

    SHA1

    8f220fd2870aa6eea2d653f402150c901cf7a17c

    SHA256

    d234ab97c05870089bc97e500d0cf768ae69e25d7692e020d61e696733c54e7c

    SHA512

    5073a31405edab7ee492b84a3f4cf845a844f3e05a28a887dcd96a5a25af31c2741b84496260eb274a3445144c3d4674401180c9c77f68635d739286b63bc1db

  • \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\9880eead082d56cf61fa8a999a9956debb4b0cc18a41f6fde15bb2d445fcfb03.exe
    Filesize

    771KB

    MD5

    86a8b3d698b231192b72e5de3c8059ff

    SHA1

    8f220fd2870aa6eea2d653f402150c901cf7a17c

    SHA256

    d234ab97c05870089bc97e500d0cf768ae69e25d7692e020d61e696733c54e7c

    SHA512

    5073a31405edab7ee492b84a3f4cf845a844f3e05a28a887dcd96a5a25af31c2741b84496260eb274a3445144c3d4674401180c9c77f68635d739286b63bc1db

  • \Users\Admin\AppData\Local\Temp\3582-490\9880eead082d56cf61fa8a999a9956debb4b0cc18a41f6fde15bb2d445fcfb03.exe
    Filesize

    771KB

    MD5

    86a8b3d698b231192b72e5de3c8059ff

    SHA1

    8f220fd2870aa6eea2d653f402150c901cf7a17c

    SHA256

    d234ab97c05870089bc97e500d0cf768ae69e25d7692e020d61e696733c54e7c

    SHA512

    5073a31405edab7ee492b84a3f4cf845a844f3e05a28a887dcd96a5a25af31c2741b84496260eb274a3445144c3d4674401180c9c77f68635d739286b63bc1db

  • memory/876-57-0x0000000000000000-mapping.dmp
  • memory/1104-54-0x0000000076201000-0x0000000076203000-memory.dmp
    Filesize

    8KB