gh0strat | 6fdf8f58c1a68b6c8360cf130a185e1a511c0aff7b9ff054074961cc25aaddeb

General

Target

6fdf8f58c1a68b6c8360cf130a185e1a511c0aff7b9ff054074961cc25aaddeb.exe
Size

375KB
MD5

8a59180d71df091f5e612b91fabc43e9
SHA1

3c84fee5fb81298e6583dda6ce0ee71993aa3d57
SHA256

6fdf8f58c1a68b6c8360cf130a185e1a511c0aff7b9ff054074961cc25aaddeb
SHA512

78be3be6574de959225526517c71e41255170079cc1e0c9717a43fae94d1e731defb594a4ec5f695a7cd46bbff55c488c04de3cf343efa503970b99b0d96508f
SSDEEP

6144:Uv5zQJVb5p72cHF1ybDFwekh212KhvwIb759QOaBjpaVRPu23E2rJmWjFc94:U4VOiF1WD7kE1dTYOi8V5u23zmWFy4

Score

10^/10

Malware Config

Signatures

Gh0st RAT payload 8 IoCs

resource	yara_rule
behavioral1/memory/2264-136-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/2264-137-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/2264-138-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/2400-148-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4716-154-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4716-155-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4716-158-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4612-175-0x0000000010000000-0x0000000010362000-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
2400	SQLSerasi.exe
4716	SQLSerasi.exe
4612	SQLSerasi.exe
4584	SQLSerasi.exe

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2264-133-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/2264-136-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/2264-137-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/2264-138-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/2400-148-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4716-151-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4716-154-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4716-155-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4716-158-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4612-175-0x0000000010000000-0x0000000010362000-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	6fdf8f58c1a68b6c8360cf130a185e1a511c0aff7b9ff054074961cc25aaddeb.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	6fdf8f58c1a68b6c8360cf130a185e1a511c0aff7b9ff054074961cc25aaddeb.exe
File opened for modification	C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe	6fdf8f58c1a68b6c8360cf130a185e1a511c0aff7b9ff054074961cc25aaddeb.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
4240	4716	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 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

Modifies data under HKEY_USERS 8 IoCs

description	ioc	Process
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
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	SQLSerasi.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	2264	6fdf8f58c1a68b6c8360cf130a185e1a511c0aff7b9ff054074961cc25aaddeb.exe
Token: SeDebugPrivilege	2400	SQLSerasi.exe
Token: SeDebugPrivilege	4716	SQLSerasi.exe
Token: SeDebugPrivilege	4716	SQLSerasi.exe
Token: SeDebugPrivilege	4716	SQLSerasi.exe
Token: SeDebugPrivilege	4612	SQLSerasi.exe
Token: SeDebugPrivilege	4584	SQLSerasi.exe
Token: SeDebugPrivilege	4612	SQLSerasi.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2264 wrote to memory of 2400	2264	6fdf8f58c1a68b6c8360cf130a185e1a511c0aff7b9ff054074961cc25aaddeb.exe	81
PID 2264 wrote to memory of 2400	2264	6fdf8f58c1a68b6c8360cf130a185e1a511c0aff7b9ff054074961cc25aaddeb.exe	81
PID 2264 wrote to memory of 2400	2264	6fdf8f58c1a68b6c8360cf130a185e1a511c0aff7b9ff054074961cc25aaddeb.exe	81
PID 4716 wrote to memory of 4612	4716	SQLSerasi.exe	83
PID 4716 wrote to memory of 4612	4716	SQLSerasi.exe	83
PID 4716 wrote to memory of 4612	4716	SQLSerasi.exe	83
PID 4716 wrote to memory of 4584	4716	SQLSerasi.exe	85
PID 4716 wrote to memory of 4584	4716	SQLSerasi.exe	85
PID 4716 wrote to memory of 4584	4716	SQLSerasi.exe	85

C:\Users\Admin\AppData\Local\Temp\6fdf8f58c1a68b6c8360cf130a185e1a511c0aff7b9ff054074961cc25aaddeb.exe
"C:\Users\Admin\AppData\Local\Temp\6fdf8f58c1a68b6c8360cf130a185e1a511c0aff7b9ff054074961cc25aaddeb.exe"
1⤵
- Checks computer location settings
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2264
- 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:2400

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:4716
- 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:4612
- 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:4584
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4716 -s 628
  2⤵
  - Program crash
  PID:4240

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4716 -ip 4716
1⤵
PID:4232

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

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Downloads

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

Filesize
39.4MB

MD5
54f57d64342442670a84684089729e66

SHA1
4391f990b8957ad5438c6cc979f9a5f610e4f361

SHA256
7f2c37dfa6a657f98821ccbb5fb19554c63f0910803e8f81ce59942cf0ede906

SHA512
4823471a79e8ecdd57dbc44e275f431af6df4ccdd4c0466522c21b11180ce18439e48f5f99e7f6bd2f9bf975d08db4b615fbbb69aca528fa27c0ec2e749042ca

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

Filesize
39.4MB

MD5
54f57d64342442670a84684089729e66

SHA1
4391f990b8957ad5438c6cc979f9a5f610e4f361

SHA256
7f2c37dfa6a657f98821ccbb5fb19554c63f0910803e8f81ce59942cf0ede906

SHA512
4823471a79e8ecdd57dbc44e275f431af6df4ccdd4c0466522c21b11180ce18439e48f5f99e7f6bd2f9bf975d08db4b615fbbb69aca528fa27c0ec2e749042ca

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

Filesize
39.4MB

MD5
54f57d64342442670a84684089729e66

SHA1
4391f990b8957ad5438c6cc979f9a5f610e4f361

SHA256
7f2c37dfa6a657f98821ccbb5fb19554c63f0910803e8f81ce59942cf0ede906

SHA512
4823471a79e8ecdd57dbc44e275f431af6df4ccdd4c0466522c21b11180ce18439e48f5f99e7f6bd2f9bf975d08db4b615fbbb69aca528fa27c0ec2e749042ca

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

Filesize
39.4MB

MD5
54f57d64342442670a84684089729e66

SHA1
4391f990b8957ad5438c6cc979f9a5f610e4f361

SHA256
7f2c37dfa6a657f98821ccbb5fb19554c63f0910803e8f81ce59942cf0ede906

SHA512
4823471a79e8ecdd57dbc44e275f431af6df4ccdd4c0466522c21b11180ce18439e48f5f99e7f6bd2f9bf975d08db4b615fbbb69aca528fa27c0ec2e749042ca

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

Filesize
39.4MB

MD5
54f57d64342442670a84684089729e66

SHA1
4391f990b8957ad5438c6cc979f9a5f610e4f361

SHA256
7f2c37dfa6a657f98821ccbb5fb19554c63f0910803e8f81ce59942cf0ede906

SHA512
4823471a79e8ecdd57dbc44e275f431af6df4ccdd4c0466522c21b11180ce18439e48f5f99e7f6bd2f9bf975d08db4b615fbbb69aca528fa27c0ec2e749042ca

Download Submit
memory/2264-137-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/2264-136-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/2264-142-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/2264-133-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/2264-138-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/2264-132-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/2400-156-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/2400-148-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/2400-149-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4584-173-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4612-174-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4612-175-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4716-157-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4716-158-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4716-155-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4716-154-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4716-151-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads