Analysis

  • max time kernel
    80s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    18-11-2022 22:27

General

  • Target

    1d7c5ef4acf3006f3a9d66c3f6bfaba61dea69a044ae5e243b33516016c5b771.exe

  • Size

    353KB

  • MD5

    45520cbb254bdf36e6b582cb08e40100

  • SHA1

    45894ea0f37810e4b5ed9c5547074bef8d411584

  • SHA256

    1d7c5ef4acf3006f3a9d66c3f6bfaba61dea69a044ae5e243b33516016c5b771

  • SHA512

    2c55feddf79e759dba2e1fb2a4120b6120cf5e96dbef479abc0e226c796e24d7a068c083a3442496d65f442f819d448b1ad9b05368c647c78aa0c7a74bb6dce6

  • SSDEEP

    6144:i9Na1Zg30ZTNWSG6/7aDtWCn54YqcDe/3pXsGKLu8NmcZKlg1Vlhw/aY:HzrWSG6zIWC5kcDePtmxmc20VlhgaY

Malware Config

Signatures

  • 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 2 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 WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1d7c5ef4acf3006f3a9d66c3f6bfaba61dea69a044ae5e243b33516016c5b771.exe
    "C:\Users\Admin\AppData\Local\Temp\1d7c5ef4acf3006f3a9d66c3f6bfaba61dea69a044ae5e243b33516016c5b771.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:1480
    • C:\Users\Admin\AppData\Local\Temp\3582-490\1d7c5ef4acf3006f3a9d66c3f6bfaba61dea69a044ae5e243b33516016c5b771.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\1d7c5ef4acf3006f3a9d66c3f6bfaba61dea69a044ae5e243b33516016c5b771.exe"
      2⤵
      • Executes dropped EXE
      PID:304

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\3582-490\1d7c5ef4acf3006f3a9d66c3f6bfaba61dea69a044ae5e243b33516016c5b771.exe

    Filesize

    312KB

    MD5

    71e0ebab95ddf373b7d05fe678266112

    SHA1

    79f4ee419d6a972f69c9be0ef02c7702aebbdd5b

    SHA256

    a3e3f5c8c2d18ece3fd37506ce82b387d95cdc42118aa52e64865fd01284c805

    SHA512

    00dd6a07c82a0122a81866c6e062f67ee37c265d1880172b770b51974b216a1226bdd728aa114088d8f12e16e3b89c23faeaf9738b2bae9c7d7854fcebfed8b1

  • C:\Users\Admin\AppData\Local\Temp\3582-490\1d7c5ef4acf3006f3a9d66c3f6bfaba61dea69a044ae5e243b33516016c5b771.exe

    Filesize

    312KB

    MD5

    71e0ebab95ddf373b7d05fe678266112

    SHA1

    79f4ee419d6a972f69c9be0ef02c7702aebbdd5b

    SHA256

    a3e3f5c8c2d18ece3fd37506ce82b387d95cdc42118aa52e64865fd01284c805

    SHA512

    00dd6a07c82a0122a81866c6e062f67ee37c265d1880172b770b51974b216a1226bdd728aa114088d8f12e16e3b89c23faeaf9738b2bae9c7d7854fcebfed8b1

  • \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\1d7c5ef4acf3006f3a9d66c3f6bfaba61dea69a044ae5e243b33516016c5b771.exe

    Filesize

    312KB

    MD5

    71e0ebab95ddf373b7d05fe678266112

    SHA1

    79f4ee419d6a972f69c9be0ef02c7702aebbdd5b

    SHA256

    a3e3f5c8c2d18ece3fd37506ce82b387d95cdc42118aa52e64865fd01284c805

    SHA512

    00dd6a07c82a0122a81866c6e062f67ee37c265d1880172b770b51974b216a1226bdd728aa114088d8f12e16e3b89c23faeaf9738b2bae9c7d7854fcebfed8b1

  • memory/304-56-0x0000000000000000-mapping.dmp

  • memory/1480-54-0x0000000076201000-0x0000000076203000-memory.dmp

    Filesize

    8KB