gh0strat | 6485a668d583fa351f28779f20f210539154122c3fe5f8f5c732048275226116

General

Target

6485a668d583fa351f28779f20f210539154122c3fe5f8f5c732048275226116.exe
Size

375KB
MD5

d0eb4cfd79d55dd0c2fc4309107413a7
SHA1

ef9eee5f88650401deed641dc1bfb7b94a7a985b
SHA256

6485a668d583fa351f28779f20f210539154122c3fe5f8f5c732048275226116
SHA512

6373ab8c2f823e70a5311436483ba2a3a899f69483dcf9d0e2e6d0e8486568c72239a9469784f00a761443f7d166f798a7b90e4004a36fc95d925f9277d4e6b1
SSDEEP

6144:sv5zQJVb5p72cHF1ybDFwekh212KhvwIb759QOaBjpaVRPu23E2rJmWjFc94:s4VOiF1WD7kE1dTYOi8V5u23zmWFy4

Score

10^/10

Malware Config

Signatures

Gh0st RAT payload 10 IoCs

resource	yara_rule
behavioral1/memory/3632-136-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/3632-137-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/3632-138-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/1436-148-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4556-154-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4556-155-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4556-158-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/3480-175-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/3784-176-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/3480-178-0x0000000010000000-0x0000000010362000-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 4 IoCs

pid	Process
1436	SQLSerasi.exe
4556	SQLSerasi.exe
3480	SQLSerasi.exe
3784	SQLSerasi.exe

UPX packed file 12 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3632-133-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/3632-136-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/3632-137-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/3632-138-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/1436-148-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4556-150-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4556-154-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4556-155-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4556-158-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/3480-175-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/3784-176-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/3480-178-0x0000000010000000-0x0000000010362000-memory.dmp	upx

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-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	6485a668d583fa351f28779f20f210539154122c3fe5f8f5c732048275226116.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5	SQLSerasi.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE	SQLSerasi.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies	SQLSerasi.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5	SQLSerasi.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe	6485a668d583fa351f28779f20f210539154122c3fe5f8f5c732048275226116.exe
File opened for modification	C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe	6485a668d583fa351f28779f20f210539154122c3fe5f8f5c732048275226116.exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1628	4556	WerFault.exe	83

Checks processor information in registry 2 TTPs 5 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\2	SQLSerasi.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	SQLSerasi.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	SQLSerasi.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1	SQLSerasi.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\ProcessorNameString	SQLSerasi.exe

Modifies data under HKEY_USERS 8 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	SQLSerasi.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	SQLSerasi.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	SQLSerasi.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	SQLSerasi.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	SQLSerasi.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	SQLSerasi.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	SQLSerasi.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	SQLSerasi.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	3632	6485a668d583fa351f28779f20f210539154122c3fe5f8f5c732048275226116.exe
Token: SeDebugPrivilege	1436	SQLSerasi.exe
Token: SeDebugPrivilege	4556	SQLSerasi.exe
Token: SeDebugPrivilege	4556	SQLSerasi.exe
Token: SeDebugPrivilege	4556	SQLSerasi.exe
Token: SeDebugPrivilege	3480	SQLSerasi.exe
Token: SeDebugPrivilege	3784	SQLSerasi.exe
Token: SeDebugPrivilege	3480	SQLSerasi.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3632 wrote to memory of 1436	3632	6485a668d583fa351f28779f20f210539154122c3fe5f8f5c732048275226116.exe	82
PID 3632 wrote to memory of 1436	3632	6485a668d583fa351f28779f20f210539154122c3fe5f8f5c732048275226116.exe	82
PID 3632 wrote to memory of 1436	3632	6485a668d583fa351f28779f20f210539154122c3fe5f8f5c732048275226116.exe	82
PID 4556 wrote to memory of 3480	4556	SQLSerasi.exe	85
PID 4556 wrote to memory of 3480	4556	SQLSerasi.exe	85
PID 4556 wrote to memory of 3480	4556	SQLSerasi.exe	85
PID 4556 wrote to memory of 3784	4556	SQLSerasi.exe	84
PID 4556 wrote to memory of 3784	4556	SQLSerasi.exe	84
PID 4556 wrote to memory of 3784	4556	SQLSerasi.exe	84

C:\Users\Admin\AppData\Local\Temp\6485a668d583fa351f28779f20f210539154122c3fe5f8f5c732048275226116.exe
"C:\Users\Admin\AppData\Local\Temp\6485a668d583fa351f28779f20f210539154122c3fe5f8f5c732048275226116.exe"
1⤵
- Checks computer location settings
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3632
- C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe
  "C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1436

C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe
"C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe"
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4556
- C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe
  "C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:3784
- C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe
  "C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe"
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - Checks processor information in registry
  - Modifies data under HKEY_USERS
  - Suspicious use of AdjustPrivilegeToken
  PID:3480
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4556 -s 576
  2⤵
  - Program crash
  PID:1628

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4556 -ip 4556
1⤵
PID:3980

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe

Filesize
39.4MB

MD5
5c0cbd08cda5ab8f908e240087af5223

SHA1
9f975dd199392e903ce3c33719088fecfaaea9fc

SHA256
c969f0d4a12434a1fceffb4fb3cd5649b203fe20a9206323ed52e88f68df242f

SHA512
513d63624bab0358445a75000cae9cbaf15eb1e99c7dbf5b8e7190c55f6250c36d4d0a8c42ce7021a6306c6bb0009269bebec85d2bfd681d80ae6cc10e0de738

Download Submit
C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe

Filesize
39.4MB

MD5
5c0cbd08cda5ab8f908e240087af5223

SHA1
9f975dd199392e903ce3c33719088fecfaaea9fc

SHA256
c969f0d4a12434a1fceffb4fb3cd5649b203fe20a9206323ed52e88f68df242f

SHA512
513d63624bab0358445a75000cae9cbaf15eb1e99c7dbf5b8e7190c55f6250c36d4d0a8c42ce7021a6306c6bb0009269bebec85d2bfd681d80ae6cc10e0de738

Download Submit
C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe

Filesize
39.4MB

MD5
5c0cbd08cda5ab8f908e240087af5223

SHA1
9f975dd199392e903ce3c33719088fecfaaea9fc

SHA256
c969f0d4a12434a1fceffb4fb3cd5649b203fe20a9206323ed52e88f68df242f

SHA512
513d63624bab0358445a75000cae9cbaf15eb1e99c7dbf5b8e7190c55f6250c36d4d0a8c42ce7021a6306c6bb0009269bebec85d2bfd681d80ae6cc10e0de738

Download Submit
C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe

Filesize
39.4MB

MD5
5c0cbd08cda5ab8f908e240087af5223

SHA1
9f975dd199392e903ce3c33719088fecfaaea9fc

SHA256
c969f0d4a12434a1fceffb4fb3cd5649b203fe20a9206323ed52e88f68df242f

SHA512
513d63624bab0358445a75000cae9cbaf15eb1e99c7dbf5b8e7190c55f6250c36d4d0a8c42ce7021a6306c6bb0009269bebec85d2bfd681d80ae6cc10e0de738

Download Submit
C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe

Filesize
39.4MB

MD5
5c0cbd08cda5ab8f908e240087af5223

SHA1
9f975dd199392e903ce3c33719088fecfaaea9fc

SHA256
c969f0d4a12434a1fceffb4fb3cd5649b203fe20a9206323ed52e88f68df242f

SHA512
513d63624bab0358445a75000cae9cbaf15eb1e99c7dbf5b8e7190c55f6250c36d4d0a8c42ce7021a6306c6bb0009269bebec85d2bfd681d80ae6cc10e0de738

Download Submit
memory/1436-151-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/1436-148-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/1436-157-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/3480-175-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/3480-178-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/3480-173-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/3632-138-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/3632-137-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/3632-132-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/3632-136-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/3632-144-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/3632-133-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/3784-174-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/3784-176-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/3784-177-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4556-155-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4556-158-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4556-156-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4556-154-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4556-150-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads