gh0strat | 8af33a963f63662ae630af77e44e174b0edaa47a79fdb236632211840dbd8cc8

General

Target

8af33a963f63662ae630af77e44e174b0edaa47a79fdb236632211840dbd8cc8.exe
Size

375KB
MD5

b5da3501b963c8b2b0e101ca7c6577b0
SHA1

e981425a3b8b3d7eaa645a9b599e71599c852f05
SHA256

8af33a963f63662ae630af77e44e174b0edaa47a79fdb236632211840dbd8cc8
SHA512

cea704135acb9d427fbf53d050d70f9d0ffb644520088a9360fe79dd05cfbdf9c7b4b4875c29f4cc2dc81eddeed0fcf3ca1cdfec52f52274d38d15ad5e726dad
SSDEEP

6144:Uv5zQJVb5p72cHF1ybDFwekh212KhvwIb759QOaBjpaVRPu23E2rJmWjFc94:U4VOiF1WD7kE1dTYOi8V5u23zmWFy4

Score

10^/10

Malware Config

Signatures

Gh0st RAT payload 8 IoCs

resource	yara_rule
behavioral1/memory/2192-136-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/2192-137-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/2192-138-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/3164-148-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/2164-154-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/2164-155-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/2164-159-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/3252-175-0x0000000010000000-0x0000000010362000-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
3164	SQLSerasi.exe
2164	SQLSerasi.exe
3252	SQLSerasi.exe
1424	SQLSerasi.exe

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2192-133-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/2192-136-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/2192-137-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/2192-138-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/3164-148-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/2164-151-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/2164-154-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/2164-155-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/2164-159-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/3252-175-0x0000000010000000-0x0000000010362000-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-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	8af33a963f63662ae630af77e44e174b0edaa47a79fdb236632211840dbd8cc8.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 opened for modification	C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe	8af33a963f63662ae630af77e44e174b0edaa47a79fdb236632211840dbd8cc8.exe
File created	C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe	8af33a963f63662ae630af77e44e174b0edaa47a79fdb236632211840dbd8cc8.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
3380	2164	WerFault.exe	88

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
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
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

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	2192	8af33a963f63662ae630af77e44e174b0edaa47a79fdb236632211840dbd8cc8.exe
Token: SeDebugPrivilege	3164	SQLSerasi.exe
Token: SeDebugPrivilege	2164	SQLSerasi.exe
Token: SeDebugPrivilege	2164	SQLSerasi.exe
Token: SeDebugPrivilege	2164	SQLSerasi.exe
Token: SeDebugPrivilege	3252	SQLSerasi.exe
Token: SeDebugPrivilege	1424	SQLSerasi.exe
Token: SeDebugPrivilege	3252	SQLSerasi.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2192 wrote to memory of 3164	2192	8af33a963f63662ae630af77e44e174b0edaa47a79fdb236632211840dbd8cc8.exe	85
PID 2192 wrote to memory of 3164	2192	8af33a963f63662ae630af77e44e174b0edaa47a79fdb236632211840dbd8cc8.exe	85
PID 2192 wrote to memory of 3164	2192	8af33a963f63662ae630af77e44e174b0edaa47a79fdb236632211840dbd8cc8.exe	85
PID 2164 wrote to memory of 3252	2164	SQLSerasi.exe	90
PID 2164 wrote to memory of 3252	2164	SQLSerasi.exe	90
PID 2164 wrote to memory of 3252	2164	SQLSerasi.exe	90
PID 2164 wrote to memory of 1424	2164	SQLSerasi.exe	91
PID 2164 wrote to memory of 1424	2164	SQLSerasi.exe	91
PID 2164 wrote to memory of 1424	2164	SQLSerasi.exe	91

C:\Users\Admin\AppData\Local\Temp\8af33a963f63662ae630af77e44e174b0edaa47a79fdb236632211840dbd8cc8.exe
"C:\Users\Admin\AppData\Local\Temp\8af33a963f63662ae630af77e44e174b0edaa47a79fdb236632211840dbd8cc8.exe"
1⤵
- Checks computer location settings
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2192
- 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:3164

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:2164
- 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:3252
- 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:1424
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2164 -s 632
  2⤵
  - Program crash
  PID:3380

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2164 -ip 2164
1⤵
PID:5104

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
d67e7318d916510be02c2e502a724805

SHA1
e1c26f4648358f7c1607c5242609d073e4730ce3

SHA256
444e2ff58ab8d3cd04435ba69f13f38bc2606e2aa9de081017376a44a927b654

SHA512
295a4b76a8ff217b4f57d78760775e0d96c61e4481dd14246219797b4f28b4ff8645cb5f9c4e8b30453e3d8a3c04380a935df1441b0d4e0ffd04f50ffded878a

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

Filesize
39.4MB

MD5
d67e7318d916510be02c2e502a724805

SHA1
e1c26f4648358f7c1607c5242609d073e4730ce3

SHA256
444e2ff58ab8d3cd04435ba69f13f38bc2606e2aa9de081017376a44a927b654

SHA512
295a4b76a8ff217b4f57d78760775e0d96c61e4481dd14246219797b4f28b4ff8645cb5f9c4e8b30453e3d8a3c04380a935df1441b0d4e0ffd04f50ffded878a

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

Filesize
39.4MB

MD5
d67e7318d916510be02c2e502a724805

SHA1
e1c26f4648358f7c1607c5242609d073e4730ce3

SHA256
444e2ff58ab8d3cd04435ba69f13f38bc2606e2aa9de081017376a44a927b654

SHA512
295a4b76a8ff217b4f57d78760775e0d96c61e4481dd14246219797b4f28b4ff8645cb5f9c4e8b30453e3d8a3c04380a935df1441b0d4e0ffd04f50ffded878a

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

Filesize
39.4MB

MD5
d67e7318d916510be02c2e502a724805

SHA1
e1c26f4648358f7c1607c5242609d073e4730ce3

SHA256
444e2ff58ab8d3cd04435ba69f13f38bc2606e2aa9de081017376a44a927b654

SHA512
295a4b76a8ff217b4f57d78760775e0d96c61e4481dd14246219797b4f28b4ff8645cb5f9c4e8b30453e3d8a3c04380a935df1441b0d4e0ffd04f50ffded878a

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

Filesize
39.4MB

MD5
d67e7318d916510be02c2e502a724805

SHA1
e1c26f4648358f7c1607c5242609d073e4730ce3

SHA256
444e2ff58ab8d3cd04435ba69f13f38bc2606e2aa9de081017376a44a927b654

SHA512
295a4b76a8ff217b4f57d78760775e0d96c61e4481dd14246219797b4f28b4ff8645cb5f9c4e8b30453e3d8a3c04380a935df1441b0d4e0ffd04f50ffded878a

Download Submit
memory/1424-160-0x0000000000000000-mapping.dmp

Download
memory/1424-174-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/2164-151-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/2164-159-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/2164-156-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/2164-155-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/2164-154-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/2192-137-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/2192-138-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/2192-136-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/2192-132-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/2192-133-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/2192-143-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/3164-149-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/3164-139-0x0000000000000000-mapping.dmp

Download
memory/3164-148-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/3164-157-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/3252-158-0x0000000000000000-mapping.dmp

Download
memory/3252-173-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/3252-175-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads