gh0strat | 7e9033119d3a95a0c07109969cf847334061aa68c94885fd76ec40525910e0ea

Analysis

max time kernel
77s
max time network
167s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
25/11/2022, 20:53

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General

Target

eee.exe
Size

106KB
MD5

f485d7fa5edbc8a557e12d807970a7aa
SHA1

b8f875b9108e3bf7e2e0c2ee27a31be263e8bbee
SHA256

e1322860ef00c8a03bfd14d8a7fa17baebb77ace4a53fee1ee96cdc9d721153a
SHA512

a2d6cb28ca854e93b4d10919fc9b74838b78f0fb4d70e3c969d08a14d156a59708d23cab8615eea4f176d0fd79ca462361b703e93aaa6ed51d62f1dd8dae7340
SSDEEP

3072:CFFil+VFbe1N9JJuusBBlMPmuf6znw9rzy0SwXozZ:C6m4N9JJzqyyLXtyozZ

Score

10^/10

gh0strat persistence rat

Malware Config

Signatures

Gh0st RAT payload 4 IoCs

resource	yara_rule
behavioral2/memory/3096-135-0x0000000010000000-0x0000000010050000-memory.dmp	family_gh0strat
behavioral2/memory/3096-136-0x0000000010000000-0x0000000010050000-memory.dmp	family_gh0strat
behavioral2/memory/3096-134-0x0000000010000000-0x0000000010050000-memory.dmp	family_gh0strat
behavioral2/memory/3096-139-0x0000000010000000-0x0000000010050000-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

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	eee.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\E638AC71 = "C:\\Windows\\E638AC71\\svchsot.exe"	eee.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\Default	eee.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\E638AC71\svchsot.exe	eee.exe
File opened for modification	C:\Windows\E638AC71\svchsot.exe	eee.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3096	eee.exe
3096	eee.exe
3096	eee.exe
3096	eee.exe
3096	eee.exe
3096	eee.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3096	eee.exe
Token: SeDebugPrivilege	3096	eee.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3096 wrote to memory of 4636	3096	eee.exe	79
PID 3096 wrote to memory of 4636	3096	eee.exe	79
PID 3096 wrote to memory of 4636	3096	eee.exe	79
PID 4636 wrote to memory of 4584	4636	net.exe	81
PID 4636 wrote to memory of 4584	4636	net.exe	81
PID 4636 wrote to memory of 4584	4636	net.exe	81

C:\Users\Admin\AppData\Local\Temp\eee.exe
"C:\Users\Admin\AppData\Local\Temp\eee.exe"
1⤵
- Adds Run key to start application
- Drops file in System32 directory
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3096
- C:\Windows\SysWOW64\net.exe
  net start "Task Scheduler"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4636
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 start "Task Scheduler"
    3⤵
    PID:4584

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3096-132-0x0000000010000000-0x0000000010050000-memory.dmp

Filesize
320KB

Download
memory/3096-135-0x0000000010000000-0x0000000010050000-memory.dmp

Filesize
320KB

Download
memory/3096-136-0x0000000010000000-0x0000000010050000-memory.dmp

Filesize
320KB

Download
memory/3096-134-0x0000000010000000-0x0000000010050000-memory.dmp

Filesize
320KB

Download
memory/3096-139-0x0000000010000000-0x0000000010050000-memory.dmp

Filesize
320KB

Download