Analysis

  • max time kernel
    28s
  • max time network
    299s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    31-12-2022 08:03

General

  • Target

    yohuab.exe

  • Size

    1.2MB

  • MD5

    db8a8e8b37240e9b989d8331afa38df9

  • SHA1

    1ddd9e5ca937a9daa474997025778e4676f94a2b

  • SHA256

    e4ae6708cd1d74b95175a022d6efcb86fe1fe058f5b611f8a8dec0fc56ec0271

  • SHA512

    fafba2f9c3e55ab8ab29acf5c7bb87bb54d6d40a87b815a7fbbe60609da2ccdf6f91279a36b28987047450a3fa39413166a7ac4f3ca1774770af617e4e6d4813

  • SSDEEP

    12288:l762TWGnujqU0z0gIlGYTbRliQHaUVPgCwUyzcdqPtoDC5n0I:l762mqtzlIlRZ6UNgC70P+Dm0I

Malware Config

Signatures

  • Detect PurpleFox Rootkit 1 IoCs

    Detect PurpleFox Rootkit.

  • Gh0st RAT payload 1 IoCs
  • Gh0strat

    Gh0st RAT is a remote access tool (RAT) with its source code public and it has been used by multiple Chinese groups.

  • PurpleFox

    PurpleFox is an exploit kit used to distribute other malware families and first seen in 2018.

  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\yohuab.exe
    "C:\Users\Admin\AppData\Local\Temp\yohuab.exe"
    1⤵
    • Enumerates connected drives
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    PID:2000

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

Query Registry

2
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

2
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2000-54-0x0000000076931000-0x0000000076933000-memory.dmp
    Filesize

    8KB

  • memory/2000-55-0x0000000010000000-0x0000000010191000-memory.dmp
    Filesize

    1.6MB