Analysis

  • max time kernel
    31s
  • max time network
    129s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    08-04-2023 10:45

General

  • Target

    tmp.exe

  • Size

    724KB

  • MD5

    aafb88179338a12e6587bf530f01af8b

  • SHA1

    5a3e0f8db8384c6cad9d0db26f9c3b72d11ad9d1

  • SHA256

    fc45a2906721098cabe88828b7c7607bc55f8813e7f0cfaa10e0e2d8cb8b0277

  • SHA512

    30a6d739f8138cb6b08b7d91a0b68f385214060e8b84426d35f5a2e8231c7f26ea072b39554ed808fb90b650733d660ab948a4fecd409c365b06719ce6c4cb88

  • SSDEEP

    12288:rUnIcs/mNZzwQEgyn3f3env0RlpztCUO9W2Pwq0UNglWZcKe6yRDHF/i506O7JBF:rUb0mPzwRfuv0RlRtCP/0U2MSK/OM2PF

Malware Config

Extracted

Family

gh0strat

C2

103.195.150.229

Signatures

  • Detect PurpleFox Rootkit 2 IoCs

    Detect PurpleFox Rootkit.

  • Gh0st RAT payload 2 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.

  • VMProtect packed file 2 IoCs

    Detects executables packed with VMProtect commercial packer.

  • Enumerates connected drives 3 TTPs 23 IoCs

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

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • 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\tmp.exe
    "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
    1⤵
    • Enumerates connected drives
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    PID:1956

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/1956-54-0x0000000000400000-0x0000000000630000-memory.dmp
    Filesize

    2.2MB

  • memory/1956-58-0x0000000010000000-0x0000000010192000-memory.dmp
    Filesize

    1.6MB

  • memory/1956-64-0x0000000000400000-0x0000000000630000-memory.dmp
    Filesize

    2.2MB