Analysis

  • max time kernel
    104s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-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
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\50583f78fabd9b76b335cce04124e3f367e593204180617feac26022d0bc3172.exe
    "C:\Users\Admin\AppData\Local\Temp\50583f78fabd9b76b335cce04124e3f367e593204180617feac26022d0bc3172.exe"
    1⤵
    • Modifies system executable filetype association
    • Checks computer location settings
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:3796
    • 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:1584
      • 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:3552

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

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

1
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

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

    510KB

    MD5

    a674d0c02b8c827745bebc3aa1eb30b6

    SHA1

    a8bd39f15deaf1b741fe2516bc942adb324f9ea4

    SHA256

    8aee2182d380a6bf0acb93ca95ae870145833cad341e44f4ae414f24efb5cf17

    SHA512

    742c5b5432acea5100c6eff7437dd826f61ae537dbacc094499e4078ab78e36a9c2d19ab4d6d0cb345678b37849b74f9e631a40d55d4ed1d686fa2ae4405a12f

  • memory/1584-132-0x0000000000000000-mapping.dmp
  • memory/3552-134-0x0000000000000000-mapping.dmp
  • memory/3552-135-0x000002B142230000-0x000002B142238000-memory.dmp
    Filesize

    32KB

  • memory/3552-136-0x000002B15C860000-0x000002B15C9E6000-memory.dmp
    Filesize

    1.5MB

  • memory/3552-137-0x00007FF984A20000-0x00007FF9854E1000-memory.dmp
    Filesize

    10.8MB

  • memory/3552-138-0x00007FF984A20000-0x00007FF9854E1000-memory.dmp
    Filesize

    10.8MB