Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-04-2023 10:49

General

  • Target

    tmp.exe

  • Size

    732KB

  • MD5

    67729c04be7bd2d5724f00366ad54a70

  • SHA1

    191a3ca5740eacb4664ab6769115abc113edb9b4

  • SHA256

    e300aada66bc9364189186207fcad4c5fa2a263a6450c8a040f02001a400c88d

  • SHA512

    d68e14ca4ef07d0f95adc1c6a173a7e392539f52fc2b603af6c7b9c185bcbc2474aae365fed1070a73effb0942873a22ab9b05faa6873d43e57112ef92d54ffd

  • SSDEEP

    12288:avJ7SQ7OE0AWeT3+D0PcRUyE6lfJxv0owN/F1GaYltfjKZdqnMW:avJmAiAWe+D0URUBmff8jVF1GasKZYn

Malware Config

Extracted

Family

gh0strat

C2

103.45.99.10

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 3 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 64 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:1808

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/1808-133-0x0000000000400000-0x0000000000634000-memory.dmp
    Filesize

    2.2MB

  • memory/1808-134-0x0000000000400000-0x0000000000634000-memory.dmp
    Filesize

    2.2MB

  • memory/1808-138-0x0000000010000000-0x0000000010192000-memory.dmp
    Filesize

    1.6MB

  • memory/1808-147-0x0000000000400000-0x0000000000634000-memory.dmp
    Filesize

    2.2MB