gh0strat | 7f01a143014e54fea66d7b40186842b78a421a52ca02a616f06d84c9274651cf

Analysis

max time kernel
209s
max time network
222s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
26/11/2022, 02:01

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General

Target

svshost.exe
Size

174KB
MD5

322de9ce4eb1ba55c6be27bb61a801d7
SHA1

7648613ec0773056ac5af51c392cd63a77c0d6a5
SHA256

26b0300cec7f4598fda04ca3939981addd2ee4156f4b7a478a4fe4231d7fbec3
SHA512

6a1dec1d114ac9726c5caab429bee217b015f9a0f418a588567667c90267fe07869fd7efd01d9b76b07779732ce9f86f0e368619c3cffca7c29ecda030e23266
SSDEEP

3072:uCDSmJfdBv6/d5IBPBrzKx8UJEkIk6QwsgdUzMqIEtYKrTFY/LK7KL:uXmJkGBPK6UogZIEy+FY/9L

Score

10^/10

gh0strat rat

Malware Config

Signatures

Gh0st RAT payload 2 IoCs

resource	yara_rule
behavioral12/memory/2152-132-0x0000000010000000-0x0000000010032000-memory.dmp	family_gh0strat
behavioral12/memory/2180-138-0x0000000010000000-0x0000000010032000-memory.dmp	family_gh0strat

Gh0strat
Gh0st RAT is a remote access tool (RAT) with its source code public and it has been used by multiple Chinese groups.
rat gh0strat

Executes dropped EXE 1 IoCs

pid	Process
2180	bgzdci.exe

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation	svshost.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\bgzdci.exe	svshost.exe
File opened for modification	C:\Windows\bgzdci.exe	svshost.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings	svshost.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2152 wrote to memory of 1804	2152	svshost.exe	84
PID 2152 wrote to memory of 1804	2152	svshost.exe	84
PID 2152 wrote to memory of 1804	2152	svshost.exe	84

C:\Users\Admin\AppData\Local\Temp\svshost.exe
"C:\Users\Admin\AppData\Local\Temp\svshost.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2152
- C:\Windows\SysWOW64\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\994.vbs"
  2⤵
  PID:1804

C:\Windows\bgzdci.exe
C:\Windows\bgzdci.exe
1⤵
- Executes dropped EXE
PID:2180

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\994.vbs

Filesize
500B

MD5
8ba5e6242514f7583a88b9223a20fd0b

SHA1
3f70d559a7c80eba5137323419309db0190b49a1

SHA256
6214f1e93874d897410e7e512647dbc27c49ebbf205955ee08a4ec7002dacdb3

SHA512
049b055533ee93a3d707b189ea3f1125d0fb868f785329778e944d5c3a8d30ae9c0987eb3e6bc1a82d941a248c6bb0fb367616648b7a4b7f7696489f76d43dea

Download Submit
C:\Windows\bgzdci.exe

Filesize
174KB

MD5
322de9ce4eb1ba55c6be27bb61a801d7

SHA1
7648613ec0773056ac5af51c392cd63a77c0d6a5

SHA256
26b0300cec7f4598fda04ca3939981addd2ee4156f4b7a478a4fe4231d7fbec3

SHA512
6a1dec1d114ac9726c5caab429bee217b015f9a0f418a588567667c90267fe07869fd7efd01d9b76b07779732ce9f86f0e368619c3cffca7c29ecda030e23266

Download Submit
C:\Windows\bgzdci.exe

Filesize
174KB

MD5
322de9ce4eb1ba55c6be27bb61a801d7

SHA1
7648613ec0773056ac5af51c392cd63a77c0d6a5

SHA256
26b0300cec7f4598fda04ca3939981addd2ee4156f4b7a478a4fe4231d7fbec3

SHA512
6a1dec1d114ac9726c5caab429bee217b015f9a0f418a588567667c90267fe07869fd7efd01d9b76b07779732ce9f86f0e368619c3cffca7c29ecda030e23266

Download Submit
memory/2152-132-0x0000000010000000-0x0000000010032000-memory.dmp

Filesize
200KB

Download
memory/2180-138-0x0000000010000000-0x0000000010032000-memory.dmp

Filesize
200KB

Download