gh0strat | 1f914f75bf05660835d99af49efcb2ef3783493f485eb4570f57edb8d8a56207

General

Target

1f914f75bf05660835d99af49efcb2ef3783493f485eb4570f57edb8d8a56207.exe
Size

375KB
MD5

fa68c58e2bc7dbf216f3a958627d2d35
SHA1

a4a014fec00ecea1a04e254470e6a5706e283e61
SHA256

1f914f75bf05660835d99af49efcb2ef3783493f485eb4570f57edb8d8a56207
SHA512

799dc3b685b960cb9e232e793132a8c8bf6ccc4e133203f2adcbe0430e269d52a9c96d687fcab0a8ef413a04e43624a162db130286176ec0a65465c8134d7942
SSDEEP

6144:tv5zQJVb5p72cHF1ybDFwekh212KhvwIb759QOaBjpaVRPu23E2rJmWjFc94:t4VOiF1WD7kE1dTYOi8V5u23zmWFy4

Score

10^/10

Malware Config

Signatures

Gh0st RAT payload 9 IoCs

resource	yara_rule
behavioral1/memory/3560-136-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/3560-137-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/3560-138-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/900-154-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/900-155-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/5100-156-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/900-158-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/900-160-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/3120-179-0x0000000010000000-0x0000000010362000-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
5100	SQLSerasi.exe
900	SQLSerasi.exe
3120	SQLSerasi.exe
4980	SQLSerasi.exe

UPX packed file 11 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3560-133-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/3560-136-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/3560-137-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/3560-138-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/900-151-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/900-154-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/900-155-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/5100-156-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/900-158-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/900-160-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/3120-179-0x0000000010000000-0x0000000010362000-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-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	1f914f75bf05660835d99af49efcb2ef3783493f485eb4570f57edb8d8a56207.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{6FD4B8A4-E028-456B-825D-B9A1D842EF14}.catalogItem	svchost.exe
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
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{E54F2523-F3AD-4B97-9927-E15647BC22FF}.catalogItem	svchost.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe	1f914f75bf05660835d99af49efcb2ef3783493f485eb4570f57edb8d8a56207.exe
File opened for modification	C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe	1f914f75bf05660835d99af49efcb2ef3783493f485eb4570f57edb8d8a56207.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
4888	900	WerFault.exe	79

Checks processor information in registry 2 TTPs 8 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\0	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	svchost.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
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\2	SQLSerasi.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	svchost.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	svchost.exe

Modifies data under HKEY_USERS 8 IoCs

description	ioc	Process
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
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

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	3560	1f914f75bf05660835d99af49efcb2ef3783493f485eb4570f57edb8d8a56207.exe
Token: SeDebugPrivilege	5100	SQLSerasi.exe
Token: SeDebugPrivilege	900	SQLSerasi.exe
Token: SeDebugPrivilege	900	SQLSerasi.exe
Token: SeDebugPrivilege	900	SQLSerasi.exe
Token: SeDebugPrivilege	4980	SQLSerasi.exe
Token: SeDebugPrivilege	3120	SQLSerasi.exe
Token: SeDebugPrivilege	3120	SQLSerasi.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3560 wrote to memory of 5100	3560	1f914f75bf05660835d99af49efcb2ef3783493f485eb4570f57edb8d8a56207.exe	78
PID 3560 wrote to memory of 5100	3560	1f914f75bf05660835d99af49efcb2ef3783493f485eb4570f57edb8d8a56207.exe	78
PID 3560 wrote to memory of 5100	3560	1f914f75bf05660835d99af49efcb2ef3783493f485eb4570f57edb8d8a56207.exe	78
PID 900 wrote to memory of 3120	900	SQLSerasi.exe	80
PID 900 wrote to memory of 3120	900	SQLSerasi.exe	80
PID 900 wrote to memory of 3120	900	SQLSerasi.exe	80
PID 900 wrote to memory of 4980	900	SQLSerasi.exe	81
PID 900 wrote to memory of 4980	900	SQLSerasi.exe	81
PID 900 wrote to memory of 4980	900	SQLSerasi.exe	81

C:\Users\Admin\AppData\Local\Temp\1f914f75bf05660835d99af49efcb2ef3783493f485eb4570f57edb8d8a56207.exe
"C:\Users\Admin\AppData\Local\Temp\1f914f75bf05660835d99af49efcb2ef3783493f485eb4570f57edb8d8a56207.exe"
1⤵
- Checks computer location settings
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3560
- 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:5100

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:900
- 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:3120
- 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:4980
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 900 -s 628
  2⤵
  - Program crash
  PID:4888

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 900 -ip 900
1⤵
PID:3220

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netsvcs -p
1⤵
- Drops file in System32 directory
- Checks processor information in registry
- Enumerates system info in registry
PID:32

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

3

T1012

System Information Discovery

4

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
7ede4c43ade35c76e5bd040b2384172f

SHA1
c05c153b3ebfa981784f5cc6e032a2780b5a4c33

SHA256
b10b16fa169bc32184ace89c71fe8c43a0a85929b340a773e933305abb9b17bc

SHA512
e533b2b75eb73b65a5734a51017b0449c3cb0e95e7b7f0ac932f35b4874a32fd17756074fc4cdbb1a1b2fe25cf671fde8bca5b40261b9540fa3df4201ee51493

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

Filesize
39.4MB

MD5
7ede4c43ade35c76e5bd040b2384172f

SHA1
c05c153b3ebfa981784f5cc6e032a2780b5a4c33

SHA256
b10b16fa169bc32184ace89c71fe8c43a0a85929b340a773e933305abb9b17bc

SHA512
e533b2b75eb73b65a5734a51017b0449c3cb0e95e7b7f0ac932f35b4874a32fd17756074fc4cdbb1a1b2fe25cf671fde8bca5b40261b9540fa3df4201ee51493

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

Filesize
39.4MB

MD5
7ede4c43ade35c76e5bd040b2384172f

SHA1
c05c153b3ebfa981784f5cc6e032a2780b5a4c33

SHA256
b10b16fa169bc32184ace89c71fe8c43a0a85929b340a773e933305abb9b17bc

SHA512
e533b2b75eb73b65a5734a51017b0449c3cb0e95e7b7f0ac932f35b4874a32fd17756074fc4cdbb1a1b2fe25cf671fde8bca5b40261b9540fa3df4201ee51493

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

Filesize
39.4MB

MD5
7ede4c43ade35c76e5bd040b2384172f

SHA1
c05c153b3ebfa981784f5cc6e032a2780b5a4c33

SHA256
b10b16fa169bc32184ace89c71fe8c43a0a85929b340a773e933305abb9b17bc

SHA512
e533b2b75eb73b65a5734a51017b0449c3cb0e95e7b7f0ac932f35b4874a32fd17756074fc4cdbb1a1b2fe25cf671fde8bca5b40261b9540fa3df4201ee51493

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

Filesize
39.4MB

MD5
7ede4c43ade35c76e5bd040b2384172f

SHA1
c05c153b3ebfa981784f5cc6e032a2780b5a4c33

SHA256
b10b16fa169bc32184ace89c71fe8c43a0a85929b340a773e933305abb9b17bc

SHA512
e533b2b75eb73b65a5734a51017b0449c3cb0e95e7b7f0ac932f35b4874a32fd17756074fc4cdbb1a1b2fe25cf671fde8bca5b40261b9540fa3df4201ee51493

Download Submit
memory/900-155-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/900-160-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/900-158-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/900-157-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/900-151-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/900-154-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/3120-179-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/3120-175-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/3560-136-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/3560-139-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/3560-147-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/3560-137-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/3560-132-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/3560-133-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/3560-138-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4980-180-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4980-181-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4980-178-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4980-176-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4980-177-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/5100-144-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/5100-156-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/5100-159-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads