gh0strat | b4a7ab24c2b868fa08770566afde2e6ba63755fa73e0886c4e60e6ad01511072

General

Target

b4a7ab24c2b868fa08770566afde2e6ba63755fa73e0886c4e60e6ad01511072.exe
Size

375KB
MD5

bcd53eea4f6ee9cac1835060e797e20e
SHA1

b6f3fe321be59a1ffe9bcf003c3d08828eb9d42c
SHA256

b4a7ab24c2b868fa08770566afde2e6ba63755fa73e0886c4e60e6ad01511072
SHA512

3f150e7d3e43af1f5e1628b9f098540b9358c031f250a47f99356dcd522e9c4ff52b97cf2aca56cb72d9104f7e6a1240306ef62e36a1cf88972df74c117b190a
SSDEEP

6144:Mv5zQJVb5p72cHF1ybDFwekh212KhvwIb759QOaBjpaVRPu23E2rJmWjFc94:M4VOiF1WD7kE1dTYOi8V5u23zmWFy4

Score

10^/10

Malware Config

Signatures

Gh0st RAT payload 12 IoCs

resource	yara_rule
behavioral1/memory/2280-136-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/2280-137-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/2280-138-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4688-148-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4688-149-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/3400-157-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/3400-156-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/3400-158-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4548-176-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/2980-177-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/3400-179-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4548-180-0x0000000010000000-0x0000000010362000-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
3400	SQLSerasi.exe
4548	SQLSerasi.exe
2980	SQLSerasi.exe

UPX packed file 14 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2280-133-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/2280-136-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/2280-137-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/2280-138-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4688-148-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4688-149-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/3400-152-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/3400-157-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/3400-156-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/3400-158-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4548-176-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/2980-177-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/3400-179-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4548-180-0x0000000010000000-0x0000000010362000-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	b4a7ab24c2b868fa08770566afde2e6ba63755fa73e0886c4e60e6ad01511072.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	b4a7ab24c2b868fa08770566afde2e6ba63755fa73e0886c4e60e6ad01511072.exe
File opened for modification	C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe	b4a7ab24c2b868fa08770566afde2e6ba63755fa73e0886c4e60e6ad01511072.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
2176	3400	WerFault.exe	81

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 (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
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

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	2280	b4a7ab24c2b868fa08770566afde2e6ba63755fa73e0886c4e60e6ad01511072.exe
Token: SeDebugPrivilege	4688	SQLSerasi.exe
Token: SeDebugPrivilege	3400	SQLSerasi.exe
Token: SeDebugPrivilege	3400	SQLSerasi.exe
Token: SeDebugPrivilege	3400	SQLSerasi.exe
Token: SeDebugPrivilege	4548	SQLSerasi.exe
Token: SeDebugPrivilege	2980	SQLSerasi.exe
Token: SeDebugPrivilege	4548	SQLSerasi.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2280 wrote to memory of 4688	2280	b4a7ab24c2b868fa08770566afde2e6ba63755fa73e0886c4e60e6ad01511072.exe	80
PID 2280 wrote to memory of 4688	2280	b4a7ab24c2b868fa08770566afde2e6ba63755fa73e0886c4e60e6ad01511072.exe	80
PID 2280 wrote to memory of 4688	2280	b4a7ab24c2b868fa08770566afde2e6ba63755fa73e0886c4e60e6ad01511072.exe	80
PID 3400 wrote to memory of 4548	3400	SQLSerasi.exe	88
PID 3400 wrote to memory of 4548	3400	SQLSerasi.exe	88
PID 3400 wrote to memory of 4548	3400	SQLSerasi.exe	88
PID 3400 wrote to memory of 2980	3400	SQLSerasi.exe	86
PID 3400 wrote to memory of 2980	3400	SQLSerasi.exe	86
PID 3400 wrote to memory of 2980	3400	SQLSerasi.exe	86

C:\Users\Admin\AppData\Local\Temp\b4a7ab24c2b868fa08770566afde2e6ba63755fa73e0886c4e60e6ad01511072.exe
"C:\Users\Admin\AppData\Local\Temp\b4a7ab24c2b868fa08770566afde2e6ba63755fa73e0886c4e60e6ad01511072.exe"
1⤵
- Checks computer location settings
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2280
- 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:3400
- 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:2980
- 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:4548
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3400 -s 672
  2⤵
  - Program crash
  PID:2176

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3400 -ip 3400
1⤵
PID:3392

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
ead10bdc3f214f1f61cccd588f033e40

SHA1
19033968a5705e28853dad700bbdd668a3ef1bfb

SHA256
aa1369e780175305dd1d4b5854bf38310a386655d52d3850df65d57c4256121e

SHA512
40bcd73b7a0c69529d3862f9e2a2691efe13aa8e8df2c6bfcd63e8cee4c0d7ef211d2964a2e470a61ef3c45e027ed7eacfde00141f6dab464c2145ef52007468

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

Filesize
39.4MB

MD5
ead10bdc3f214f1f61cccd588f033e40

SHA1
19033968a5705e28853dad700bbdd668a3ef1bfb

SHA256
aa1369e780175305dd1d4b5854bf38310a386655d52d3850df65d57c4256121e

SHA512
40bcd73b7a0c69529d3862f9e2a2691efe13aa8e8df2c6bfcd63e8cee4c0d7ef211d2964a2e470a61ef3c45e027ed7eacfde00141f6dab464c2145ef52007468

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

Filesize
39.4MB

MD5
ead10bdc3f214f1f61cccd588f033e40

SHA1
19033968a5705e28853dad700bbdd668a3ef1bfb

SHA256
aa1369e780175305dd1d4b5854bf38310a386655d52d3850df65d57c4256121e

SHA512
40bcd73b7a0c69529d3862f9e2a2691efe13aa8e8df2c6bfcd63e8cee4c0d7ef211d2964a2e470a61ef3c45e027ed7eacfde00141f6dab464c2145ef52007468

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

Filesize
39.4MB

MD5
ead10bdc3f214f1f61cccd588f033e40

SHA1
19033968a5705e28853dad700bbdd668a3ef1bfb

SHA256
aa1369e780175305dd1d4b5854bf38310a386655d52d3850df65d57c4256121e

SHA512
40bcd73b7a0c69529d3862f9e2a2691efe13aa8e8df2c6bfcd63e8cee4c0d7ef211d2964a2e470a61ef3c45e027ed7eacfde00141f6dab464c2145ef52007468

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

Filesize
39.4MB

MD5
ead10bdc3f214f1f61cccd588f033e40

SHA1
19033968a5705e28853dad700bbdd668a3ef1bfb

SHA256
aa1369e780175305dd1d4b5854bf38310a386655d52d3850df65d57c4256121e

SHA512
40bcd73b7a0c69529d3862f9e2a2691efe13aa8e8df2c6bfcd63e8cee4c0d7ef211d2964a2e470a61ef3c45e027ed7eacfde00141f6dab464c2145ef52007468

Download Submit
memory/2280-133-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/2280-138-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/2280-136-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/2280-142-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/2280-132-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/2280-137-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/2980-177-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/2980-175-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/2980-178-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/3400-152-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/3400-156-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/3400-158-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/3400-157-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/3400-153-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/3400-179-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4548-174-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4548-176-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4548-180-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4688-159-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4688-151-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4688-149-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4688-148-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads