gh0strat | b71c0b902245d760c242c68e00aa1d87c53c0a014660effce73396128cba9733

General

Target

b71c0b902245d760c242c68e00aa1d87c53c0a014660effce73396128cba9733.exe
Size

375KB
MD5

61cb0e23aeb7925c7206f833655c017c
SHA1

61e69ff3d8e30bc81fbef5ff65785c3103890e4e
SHA256

b71c0b902245d760c242c68e00aa1d87c53c0a014660effce73396128cba9733
SHA512

ab2b63a61eb739d53b12b908a8de6c0e40e20aec08b2b886b2028f3d555975c6308bf415830e892103364a7fa9c3e0dfd0c85497eac03ba82cce6f1e78a2aa73
SSDEEP

6144:Pv5zQJVb5p72cHF1ybDFwekh212KhvwIb759QOaBjpaVRPu23E2rJmWjFc94:P4VOiF1WD7kE1dTYOi8V5u23zmWFy4

Score

10^/10

Malware Config

Signatures

Gh0st RAT payload 8 IoCs

resource	yara_rule
behavioral1/memory/372-137-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/372-138-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/372-139-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/556-154-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/556-155-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/556-161-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/3504-177-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4448-178-0x0000000010000000-0x0000000010362000-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
4448	SQLSerasi.exe
556	SQLSerasi.exe
3504	SQLSerasi.exe
4964	SQLSerasi.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral1/memory/372-132-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/372-137-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/372-138-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/372-139-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/556-151-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/556-154-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/556-155-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/556-161-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/3504-177-0x0000000010000000-0x0000000010362000-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	b71c0b902245d760c242c68e00aa1d87c53c0a014660effce73396128cba9733.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
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 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

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe	b71c0b902245d760c242c68e00aa1d87c53c0a014660effce73396128cba9733.exe
File opened for modification	C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe	b71c0b902245d760c242c68e00aa1d87c53c0a014660effce73396128cba9733.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
1292	556	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\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
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	SQLSerasi.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	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	372	b71c0b902245d760c242c68e00aa1d87c53c0a014660effce73396128cba9733.exe
Token: SeDebugPrivilege	4448	SQLSerasi.exe
Token: SeDebugPrivilege	556	SQLSerasi.exe
Token: SeDebugPrivilege	556	SQLSerasi.exe
Token: SeDebugPrivilege	556	SQLSerasi.exe
Token: SeDebugPrivilege	3504	SQLSerasi.exe
Token: SeDebugPrivilege	4964	SQLSerasi.exe
Token: SeDebugPrivilege	3504	SQLSerasi.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 372 wrote to memory of 4448	372	b71c0b902245d760c242c68e00aa1d87c53c0a014660effce73396128cba9733.exe	81
PID 372 wrote to memory of 4448	372	b71c0b902245d760c242c68e00aa1d87c53c0a014660effce73396128cba9733.exe	81
PID 372 wrote to memory of 4448	372	b71c0b902245d760c242c68e00aa1d87c53c0a014660effce73396128cba9733.exe	81
PID 556 wrote to memory of 3504	556	SQLSerasi.exe	85
PID 556 wrote to memory of 3504	556	SQLSerasi.exe	85
PID 556 wrote to memory of 3504	556	SQLSerasi.exe	85
PID 556 wrote to memory of 4964	556	SQLSerasi.exe	86
PID 556 wrote to memory of 4964	556	SQLSerasi.exe	86
PID 556 wrote to memory of 4964	556	SQLSerasi.exe	86

C:\Users\Admin\AppData\Local\Temp\b71c0b902245d760c242c68e00aa1d87c53c0a014660effce73396128cba9733.exe
"C:\Users\Admin\AppData\Local\Temp\b71c0b902245d760c242c68e00aa1d87c53c0a014660effce73396128cba9733.exe"
1⤵
- Checks computer location settings
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:372
- 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:4448

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:556
- 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:3504
- 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:4964
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 556 -s 668
  2⤵
  - Program crash
  PID:1292

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 556 -ip 556
1⤵
PID:3148

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

Loading Replay Monitor...

Downloads

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

Filesize
39.4MB

MD5
c3c8df949b27c32fc5bb18c2477f60d6

SHA1
e360fd6bfcd56aca90b35cf5c8ba4954de8b23b6

SHA256
6df2ec3ac959098b15510f836527d529a3fcab5087fd95bf8d3f44893b0fc818

SHA512
c9adb91678bb96003f6a00eaa0b6a08da0ed5789579e18e698a9e4d4e8b510ec1f0a5ae7b630b75e96e856e7d6c90b9c89f467feec4f3ec7250cf88d358506fe

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

Filesize
39.4MB

MD5
c3c8df949b27c32fc5bb18c2477f60d6

SHA1
e360fd6bfcd56aca90b35cf5c8ba4954de8b23b6

SHA256
6df2ec3ac959098b15510f836527d529a3fcab5087fd95bf8d3f44893b0fc818

SHA512
c9adb91678bb96003f6a00eaa0b6a08da0ed5789579e18e698a9e4d4e8b510ec1f0a5ae7b630b75e96e856e7d6c90b9c89f467feec4f3ec7250cf88d358506fe

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

Filesize
39.4MB

MD5
c3c8df949b27c32fc5bb18c2477f60d6

SHA1
e360fd6bfcd56aca90b35cf5c8ba4954de8b23b6

SHA256
6df2ec3ac959098b15510f836527d529a3fcab5087fd95bf8d3f44893b0fc818

SHA512
c9adb91678bb96003f6a00eaa0b6a08da0ed5789579e18e698a9e4d4e8b510ec1f0a5ae7b630b75e96e856e7d6c90b9c89f467feec4f3ec7250cf88d358506fe

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

Filesize
39.4MB

MD5
c3c8df949b27c32fc5bb18c2477f60d6

SHA1
e360fd6bfcd56aca90b35cf5c8ba4954de8b23b6

SHA256
6df2ec3ac959098b15510f836527d529a3fcab5087fd95bf8d3f44893b0fc818

SHA512
c9adb91678bb96003f6a00eaa0b6a08da0ed5789579e18e698a9e4d4e8b510ec1f0a5ae7b630b75e96e856e7d6c90b9c89f467feec4f3ec7250cf88d358506fe

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

Filesize
39.4MB

MD5
c3c8df949b27c32fc5bb18c2477f60d6

SHA1
e360fd6bfcd56aca90b35cf5c8ba4954de8b23b6

SHA256
6df2ec3ac959098b15510f836527d529a3fcab5087fd95bf8d3f44893b0fc818

SHA512
c9adb91678bb96003f6a00eaa0b6a08da0ed5789579e18e698a9e4d4e8b510ec1f0a5ae7b630b75e96e856e7d6c90b9c89f467feec4f3ec7250cf88d358506fe

Download Submit
memory/372-132-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/372-135-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/372-137-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/372-138-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/372-139-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/372-143-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/556-154-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/556-161-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/556-155-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/556-160-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/556-151-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/3504-177-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/3504-175-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4448-159-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4448-145-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4448-157-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4448-156-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4448-178-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4964-176-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads