Analysis

  • max time kernel
    172s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    26-11-2022 02:56

General

  • Target

    f667e6059bf847e908d4e85ff0e310e224191ad16bd6e72198707aa8d361d2bd.exe

  • Size

    676KB

  • MD5

    9db37eba1f3cb33c10dad4492412227e

  • SHA1

    fd01815ce491ab43f0d680354e54ca3ea3bf89ce

  • SHA256

    f667e6059bf847e908d4e85ff0e310e224191ad16bd6e72198707aa8d361d2bd

  • SHA512

    6fb8c4f601ac0b0e3926fec5f082746f4d87b65728ab0581156f295f8d8ceac810f38ad88b30f77ec0582d1988e8405e50fc047f18a9ff6346560da920fe5531

  • SSDEEP

    12288:OQEBY1rx5MQmXYSG6N7WNFgOcJPA6HbpQlJOQOsejVOdEMB3jVR0YgpHWDYlmN7r:7M53A46n/ZJdEMB3jVR0YgpHWDYlmN7r

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 4 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 behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f667e6059bf847e908d4e85ff0e310e224191ad16bd6e72198707aa8d361d2bd.exe
    "C:\Users\Admin\AppData\Local\Temp\f667e6059bf847e908d4e85ff0e310e224191ad16bd6e72198707aa8d361d2bd.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:1280
    • C:\Users\Admin\AppData\Local\Temp\3582-490\f667e6059bf847e908d4e85ff0e310e224191ad16bd6e72198707aa8d361d2bd.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\f667e6059bf847e908d4e85ff0e310e224191ad16bd6e72198707aa8d361d2bd.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:556
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
        dw20.exe -x -s 432
        3⤵
        • Loads dropped DLL
        • Suspicious behavior: GetForegroundWindowSpam
        PID:1164

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\3582-490\f667e6059bf847e908d4e85ff0e310e224191ad16bd6e72198707aa8d361d2bd.exe

    Filesize

    636KB

    MD5

    131511ebe17b80c771191c01533b8fc6

    SHA1

    bded95ff52eb6fd38a5c6ce2ed0ea6109b39c859

    SHA256

    38ade5e0d77d862327c8cf22403c1c28f8ec5c572fe0446a295a0a15decdd25b

    SHA512

    78698d3f3c781b77054a4a737feb4b0c04180d44875b1ca9f9460f8f7a03eeb0b0424343dcddc7b678a825228b39a0d22fe145720f4d5f0fcb8041caf3c477cf

  • C:\Users\Admin\AppData\Local\Temp\3582-490\f667e6059bf847e908d4e85ff0e310e224191ad16bd6e72198707aa8d361d2bd.exe

    Filesize

    636KB

    MD5

    131511ebe17b80c771191c01533b8fc6

    SHA1

    bded95ff52eb6fd38a5c6ce2ed0ea6109b39c859

    SHA256

    38ade5e0d77d862327c8cf22403c1c28f8ec5c572fe0446a295a0a15decdd25b

    SHA512

    78698d3f3c781b77054a4a737feb4b0c04180d44875b1ca9f9460f8f7a03eeb0b0424343dcddc7b678a825228b39a0d22fe145720f4d5f0fcb8041caf3c477cf

  • \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\f667e6059bf847e908d4e85ff0e310e224191ad16bd6e72198707aa8d361d2bd.exe

    Filesize

    636KB

    MD5

    131511ebe17b80c771191c01533b8fc6

    SHA1

    bded95ff52eb6fd38a5c6ce2ed0ea6109b39c859

    SHA256

    38ade5e0d77d862327c8cf22403c1c28f8ec5c572fe0446a295a0a15decdd25b

    SHA512

    78698d3f3c781b77054a4a737feb4b0c04180d44875b1ca9f9460f8f7a03eeb0b0424343dcddc7b678a825228b39a0d22fe145720f4d5f0fcb8041caf3c477cf

  • \Users\Admin\AppData\Local\Temp\3582-490\f667e6059bf847e908d4e85ff0e310e224191ad16bd6e72198707aa8d361d2bd.exe

    Filesize

    636KB

    MD5

    131511ebe17b80c771191c01533b8fc6

    SHA1

    bded95ff52eb6fd38a5c6ce2ed0ea6109b39c859

    SHA256

    38ade5e0d77d862327c8cf22403c1c28f8ec5c572fe0446a295a0a15decdd25b

    SHA512

    78698d3f3c781b77054a4a737feb4b0c04180d44875b1ca9f9460f8f7a03eeb0b0424343dcddc7b678a825228b39a0d22fe145720f4d5f0fcb8041caf3c477cf

  • \Users\Admin\AppData\Local\Temp\3582-490\f667e6059bf847e908d4e85ff0e310e224191ad16bd6e72198707aa8d361d2bd.exe

    Filesize

    636KB

    MD5

    131511ebe17b80c771191c01533b8fc6

    SHA1

    bded95ff52eb6fd38a5c6ce2ed0ea6109b39c859

    SHA256

    38ade5e0d77d862327c8cf22403c1c28f8ec5c572fe0446a295a0a15decdd25b

    SHA512

    78698d3f3c781b77054a4a737feb4b0c04180d44875b1ca9f9460f8f7a03eeb0b0424343dcddc7b678a825228b39a0d22fe145720f4d5f0fcb8041caf3c477cf

  • memory/556-57-0x0000000000000000-mapping.dmp

  • memory/556-64-0x0000000074070000-0x000000007461B000-memory.dmp

    Filesize

    5.7MB

  • memory/556-66-0x0000000074070000-0x000000007461B000-memory.dmp

    Filesize

    5.7MB

  • memory/1164-61-0x0000000000000000-mapping.dmp

  • memory/1280-54-0x0000000074FD1000-0x0000000074FD3000-memory.dmp

    Filesize

    8KB