Analysis

  • max time kernel
    162s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    25-11-2022 08:41

General

  • Target

    50583f78fabd9b76b335cce04124e3f367e593204180617feac26022d0bc3172.exe

  • Size

    551KB

  • MD5

    5e3ad9bd917001ec764a4489f737e47c

  • SHA1

    cf7496cb7fd4533f8fcd0707a27ed82b3c7a7d31

  • SHA256

    50583f78fabd9b76b335cce04124e3f367e593204180617feac26022d0bc3172

  • SHA512

    fe4f0b97193af8893dfb07276e9bf693f5583ae3303dd844c7b23e31090bfd596292f173b729d06682ad1ec1f1916a2d04b02e322dbed56bc3c830e0cad1814d

  • SSDEEP

    12288:6QLvivRUO3vdMn3y132afS8FsDdFJeMb01JQntLOCOWe1CZDc:Qvj3k3yRFsfJemOVMDc

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 22 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\50583f78fabd9b76b335cce04124e3f367e593204180617feac26022d0bc3172.exe
    "C:\Users\Admin\AppData\Local\Temp\50583f78fabd9b76b335cce04124e3f367e593204180617feac26022d0bc3172.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:1376
    • C:\Users\Admin\AppData\Local\Temp\3582-490\50583f78fabd9b76b335cce04124e3f367e593204180617feac26022d0bc3172.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\50583f78fabd9b76b335cce04124e3f367e593204180617feac26022d0bc3172.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:1612
      • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\dfsvc.exe
        "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\dfsvc.exe"
        3⤵
        • Modifies registry class
        • Suspicious use of AdjustPrivilegeToken
        PID:1176

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\3582-490\50583f78fabd9b76b335cce04124e3f367e593204180617feac26022d0bc3172.exe
    Filesize

    510KB

    MD5

    a674d0c02b8c827745bebc3aa1eb30b6

    SHA1

    a8bd39f15deaf1b741fe2516bc942adb324f9ea4

    SHA256

    8aee2182d380a6bf0acb93ca95ae870145833cad341e44f4ae414f24efb5cf17

    SHA512

    742c5b5432acea5100c6eff7437dd826f61ae537dbacc094499e4078ab78e36a9c2d19ab4d6d0cb345678b37849b74f9e631a40d55d4ed1d686fa2ae4405a12f

  • \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\50583f78fabd9b76b335cce04124e3f367e593204180617feac26022d0bc3172.exe
    Filesize

    510KB

    MD5

    a674d0c02b8c827745bebc3aa1eb30b6

    SHA1

    a8bd39f15deaf1b741fe2516bc942adb324f9ea4

    SHA256

    8aee2182d380a6bf0acb93ca95ae870145833cad341e44f4ae414f24efb5cf17

    SHA512

    742c5b5432acea5100c6eff7437dd826f61ae537dbacc094499e4078ab78e36a9c2d19ab4d6d0cb345678b37849b74f9e631a40d55d4ed1d686fa2ae4405a12f

  • memory/1176-59-0x0000000000000000-mapping.dmp
  • memory/1176-60-0x0000000000D20000-0x0000000000D28000-memory.dmp
    Filesize

    32KB

  • memory/1176-62-0x000007FEFB9E1000-0x000007FEFB9E3000-memory.dmp
    Filesize

    8KB

  • memory/1176-63-0x000000001B2B7000-0x000000001B2D6000-memory.dmp
    Filesize

    124KB

  • memory/1176-64-0x000000001B2B7000-0x000000001B2D6000-memory.dmp
    Filesize

    124KB

  • memory/1376-54-0x0000000075B61000-0x0000000075B63000-memory.dmp
    Filesize

    8KB

  • memory/1612-56-0x0000000000000000-mapping.dmp