gh0strat | 546a5c07772d7dd3d884e6042efb3fd18034f0f81ce8b9e8dd0dd9d867b211ce

General

Target

546a5c07772d7dd3d884e6042efb3fd18034f0f81ce8b9e8dd0dd9d867b211ce.exe
Size

375KB
MD5

9d7e7fde20f5710664606ccdd399f4e9
SHA1

88f3280f5341220a7e76a3f5f30060e36cf14e6f
SHA256

546a5c07772d7dd3d884e6042efb3fd18034f0f81ce8b9e8dd0dd9d867b211ce
SHA512

b1835f491a74d96c6e4d41397368bd38a78411ddfc59377067724c861b8c286da82d9e7299ab392eb317f5a4bdce5fd825b1d247e0a1258e026941e7af03eb57
SSDEEP

6144:Ev5zQJVb5p72cHF1ybDFwekh212KhvwIb759QOaBjpaVRPu23E2rJmWjFc94:E4VOiF1WD7kE1dTYOi8V5u23zmWFy4

Score

10^/10

Malware Config

Signatures

Gh0st RAT payload 10 IoCs

resource	yara_rule
behavioral1/memory/2156-136-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/2156-137-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/2156-138-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4740-152-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4740-153-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4740-158-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4688-155-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4788-175-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4512-176-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4688-177-0x0000000010000000-0x0000000010362000-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
4688	SQLSerasi.exe
4740	SQLSerasi.exe
4788	SQLSerasi.exe
4512	SQLSerasi.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2156-133-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/2156-136-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/2156-137-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/2156-138-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4740-149-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4740-152-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4740-153-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4740-158-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4512-176-0x0000000010000000-0x0000000010362000-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-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	546a5c07772d7dd3d884e6042efb3fd18034f0f81ce8b9e8dd0dd9d867b211ce.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	546a5c07772d7dd3d884e6042efb3fd18034f0f81ce8b9e8dd0dd9d867b211ce.exe
File opened for modification	C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe	546a5c07772d7dd3d884e6042efb3fd18034f0f81ce8b9e8dd0dd9d867b211ce.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
3640	4740	WerFault.exe	82

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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\ProcessorNameString	SQLSerasi.exe
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

Modifies data under HKEY_USERS 8 IoCs

description	ioc	Process
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
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

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	2156	546a5c07772d7dd3d884e6042efb3fd18034f0f81ce8b9e8dd0dd9d867b211ce.exe
Token: SeDebugPrivilege	4688	SQLSerasi.exe
Token: SeDebugPrivilege	4740	SQLSerasi.exe
Token: SeDebugPrivilege	4740	SQLSerasi.exe
Token: SeDebugPrivilege	4740	SQLSerasi.exe
Token: SeDebugPrivilege	4788	SQLSerasi.exe
Token: SeDebugPrivilege	4512	SQLSerasi.exe
Token: SeDebugPrivilege	4512	SQLSerasi.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2156 wrote to memory of 4688	2156	546a5c07772d7dd3d884e6042efb3fd18034f0f81ce8b9e8dd0dd9d867b211ce.exe	81
PID 2156 wrote to memory of 4688	2156	546a5c07772d7dd3d884e6042efb3fd18034f0f81ce8b9e8dd0dd9d867b211ce.exe	81
PID 2156 wrote to memory of 4688	2156	546a5c07772d7dd3d884e6042efb3fd18034f0f81ce8b9e8dd0dd9d867b211ce.exe	81
PID 4740 wrote to memory of 4788	4740	SQLSerasi.exe	83
PID 4740 wrote to memory of 4788	4740	SQLSerasi.exe	83
PID 4740 wrote to memory of 4788	4740	SQLSerasi.exe	83
PID 4740 wrote to memory of 4512	4740	SQLSerasi.exe	84
PID 4740 wrote to memory of 4512	4740	SQLSerasi.exe	84
PID 4740 wrote to memory of 4512	4740	SQLSerasi.exe	84

C:\Users\Admin\AppData\Local\Temp\546a5c07772d7dd3d884e6042efb3fd18034f0f81ce8b9e8dd0dd9d867b211ce.exe
"C:\Users\Admin\AppData\Local\Temp\546a5c07772d7dd3d884e6042efb3fd18034f0f81ce8b9e8dd0dd9d867b211ce.exe"
1⤵
- Checks computer location settings
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2156
- 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:4688

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:4740
- 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:4788
- 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:4512
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4740 -s 648
  2⤵
  - Program crash
  PID:3640

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 4740 -ip 4740
1⤵
PID:1264

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
36c2d4f2746b880b46955bd5ff4676b6

SHA1
2c0693309f0f80f65c1483708c2da292cbfba2cf

SHA256
bf41cd62617a55b6378a4f9385e1abb9b31324d815cee139362d6fe4a8375c95

SHA512
a35bb72e478f21afaebdb67e5dfc519564a2334ee2ea34c5a69c32c99dd2efe28a5eefa5ae0c11346afd566f00c75616ee3d764462e484683014257e929ffed0

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

Filesize
39.4MB

MD5
36c2d4f2746b880b46955bd5ff4676b6

SHA1
2c0693309f0f80f65c1483708c2da292cbfba2cf

SHA256
bf41cd62617a55b6378a4f9385e1abb9b31324d815cee139362d6fe4a8375c95

SHA512
a35bb72e478f21afaebdb67e5dfc519564a2334ee2ea34c5a69c32c99dd2efe28a5eefa5ae0c11346afd566f00c75616ee3d764462e484683014257e929ffed0

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

Filesize
39.4MB

MD5
36c2d4f2746b880b46955bd5ff4676b6

SHA1
2c0693309f0f80f65c1483708c2da292cbfba2cf

SHA256
bf41cd62617a55b6378a4f9385e1abb9b31324d815cee139362d6fe4a8375c95

SHA512
a35bb72e478f21afaebdb67e5dfc519564a2334ee2ea34c5a69c32c99dd2efe28a5eefa5ae0c11346afd566f00c75616ee3d764462e484683014257e929ffed0

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

Filesize
39.4MB

MD5
36c2d4f2746b880b46955bd5ff4676b6

SHA1
2c0693309f0f80f65c1483708c2da292cbfba2cf

SHA256
bf41cd62617a55b6378a4f9385e1abb9b31324d815cee139362d6fe4a8375c95

SHA512
a35bb72e478f21afaebdb67e5dfc519564a2334ee2ea34c5a69c32c99dd2efe28a5eefa5ae0c11346afd566f00c75616ee3d764462e484683014257e929ffed0

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

Filesize
39.4MB

MD5
36c2d4f2746b880b46955bd5ff4676b6

SHA1
2c0693309f0f80f65c1483708c2da292cbfba2cf

SHA256
bf41cd62617a55b6378a4f9385e1abb9b31324d815cee139362d6fe4a8375c95

SHA512
a35bb72e478f21afaebdb67e5dfc519564a2334ee2ea34c5a69c32c99dd2efe28a5eefa5ae0c11346afd566f00c75616ee3d764462e484683014257e929ffed0

Download Submit
memory/2156-138-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/2156-141-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/2156-137-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/2156-132-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/2156-136-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/2156-133-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4512-176-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4512-173-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4688-155-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4688-177-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4688-154-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4740-158-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4740-156-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4740-153-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4740-152-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4740-149-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4788-172-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4788-174-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4788-175-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4788-178-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads