gh0strat | 52091de74be387b3409cb595306fef4ef8129c0cd4e4867659140218495c7aa4

Analysis

max time kernel
141s
max time network
142s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
25-03-2023 14:09

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General

Target

tmp.exe
Size

161KB
MD5

f35b17916d8f7aaffa2e4c2db4597015
SHA1

2e4fbfa5bcd58c62be0df7cbea92b65264993743
SHA256

52091de74be387b3409cb595306fef4ef8129c0cd4e4867659140218495c7aa4
SHA512

f48ef1aa21805e8bca91b6ee87f338c8388d2c8dff6422955704a9c352877f8ad665c139fc3febd6f8c2d64a44ce9d6153e35c8d46b59b4a505ac381b3ad1a5e
SSDEEP

3072:6yIpG2/iDbYeZqFU+D+mlVP93L22cYl71tmAY1n68g1UphQi5UJs:rIposeKUoP93LeI71smuhQXJs

Score

10^/10

gh0strat persistence rat upx

Malware Config

Extracted

Family

gh0strat

154.9.24.101

Signatures

Gh0st RAT payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4764-134-0x0000000010000000-0x0000000010015000-memory.dmp	family_gh0strat
behavioral2/memory/4764-139-0x0000000000400000-0x0000000000471000-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

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral2/memory/4764-133-0x0000000000400000-0x0000000000471000-memory.dmp	upx
behavioral2/memory/4764-139-0x0000000000400000-0x0000000000471000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

tmp.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\tmp.exe"	tmp.exe

Enumerates connected drives 3 TTPs 23 IoCs

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

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

tmp.exe

description	ioc	process
File opened (read-only)	\??\R:	tmp.exe
File opened (read-only)	\??\V:	tmp.exe
File opened (read-only)	\??\B:	tmp.exe
File opened (read-only)	\??\F:	tmp.exe
File opened (read-only)	\??\H:	tmp.exe
File opened (read-only)	\??\N:	tmp.exe
File opened (read-only)	\??\O:	tmp.exe
File opened (read-only)	\??\Q:	tmp.exe
File opened (read-only)	\??\W:	tmp.exe
File opened (read-only)	\??\Y:	tmp.exe
File opened (read-only)	\??\G:	tmp.exe
File opened (read-only)	\??\I:	tmp.exe
File opened (read-only)	\??\M:	tmp.exe
File opened (read-only)	\??\S:	tmp.exe
File opened (read-only)	\??\T:	tmp.exe
File opened (read-only)	\??\U:	tmp.exe
File opened (read-only)	\??\Z:	tmp.exe
File opened (read-only)	\??\J:	tmp.exe
File opened (read-only)	\??\E:	tmp.exe
File opened (read-only)	\??\K:	tmp.exe
File opened (read-only)	\??\L:	tmp.exe
File opened (read-only)	\??\P:	tmp.exe
File opened (read-only)	\??\X:	tmp.exe

Checks processor information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

tmp.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	tmp.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	tmp.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

tmp.exe

pid process

4764 tmp.exe
4764 tmp.exe
4764 tmp.exe
4764 tmp.exe
4764 tmp.exe
4764 tmp.exe
4764 tmp.exe
4764 tmp.exe

pid	process
4764	tmp.exe
4764	tmp.exe
4764	tmp.exe
4764	tmp.exe
4764	tmp.exe
4764	tmp.exe
4764	tmp.exe
4764	tmp.exe

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
1⤵
- Adds Run key to start application
- Enumerates connected drives
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:4764

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/4764-133-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/4764-134-0x0000000010000000-0x0000000010015000-memory.dmp

Filesize
84KB

Download
memory/4764-139-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download