Analysis

  • max time kernel
    140s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-11-2022 19:45

General

  • Target

    7fb0346eb8ce7d98a79084eeff1ddcd115ecfd1150a26bb52b39989b16267689.exe

  • Size

    1.6MB

  • MD5

    086843be3574888c82076e12756a2d4d

  • SHA1

    39df0a6268554f87b6a0937fec8ad116c0cc70d1

  • SHA256

    7fb0346eb8ce7d98a79084eeff1ddcd115ecfd1150a26bb52b39989b16267689

  • SHA512

    a8e19d6dcc277fec6350f967676798142497f7b44ca1f26296fc50e070f96191848021a912bd073c56a560b55ca963230ee6a50d1efb82fc0ef311b6bf7bd765

  • SSDEEP

    49152:1Vg5tQ7aOcbf5tIs5LkIO3k9dCwh69R3jfm:7g56CbksLkLkrCq6z3jfm

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.

  • 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • 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 31 IoCs
  • Suspicious use of SendNotifyMessage 31 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7fb0346eb8ce7d98a79084eeff1ddcd115ecfd1150a26bb52b39989b16267689.exe
    "C:\Users\Admin\AppData\Local\Temp\7fb0346eb8ce7d98a79084eeff1ddcd115ecfd1150a26bb52b39989b16267689.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:5072
    • C:\Users\Admin\AppData\Local\Temp\7fb0346eb8ce7d98a79084eeff1ddcd115ecfd1150a26bb52b39989b16267689.exe
      "C:\Users\Admin\AppData\Local\Temp\7fb0346eb8ce7d98a79084eeff1ddcd115ecfd1150a26bb52b39989b16267689.exe"
      2⤵
      • Modifies system executable filetype association
      • Checks computer location settings
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • Modifies registry class
      PID:1472

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

  • memory/1472-132-0x0000000000000000-mapping.dmp
  • memory/1472-133-0x0000000000400000-0x0000000000463000-memory.dmp
    Filesize

    396KB

  • memory/1472-134-0x0000000000400000-0x0000000000463000-memory.dmp
    Filesize

    396KB

  • memory/1472-135-0x0000000000400000-0x0000000000463000-memory.dmp
    Filesize

    396KB

  • memory/1472-136-0x0000000000400000-0x0000000000463000-memory.dmp
    Filesize

    396KB

  • memory/1472-137-0x0000000000400000-0x0000000000463000-memory.dmp
    Filesize

    396KB