gh0strat | 33542bfff3727131d00639ac7264ca3ae7806ede3af57245716fa46ba24a3797

General

Target

33542bfff3727131d00639ac7264ca3ae7806ede3af57245716fa46ba24a3797.exe
Size

375KB
MD5

e61731ea56d0ae4dfc434348c0204925
SHA1

44dccbc5162966cf80d84fd5908effb24fdb02b1
SHA256

33542bfff3727131d00639ac7264ca3ae7806ede3af57245716fa46ba24a3797
SHA512

f8cae56a393aaf1625033692c0664f4d7377ac533530625cc66105535117559cb6f85c29d708afdeebfe30335db55ecc035ca1583dfb11944e9c6d432475eec3
SSDEEP

6144:cv5zQJVb5p72cHF1ybDFwekh212KhvwIb759QOaBjpaVRPu23E2rJmWjFc94:c4VOiF1WD7kE1dTYOi8V5u23zmWFy4

Score

10^/10

Malware Config

Signatures

Gh0st RAT payload 12 IoCs

resource	yara_rule
behavioral1/memory/5004-136-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/5004-137-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/5004-138-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/5004-139-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/5004-141-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4984-151-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4984-155-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/2188-159-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/2188-160-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/2188-161-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/3296-180-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/2188-181-0x0000000010000000-0x0000000010362000-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
4984	SQLSerasi.exe
2188	SQLSerasi.exe
3296	SQLSerasi.exe
4620	SQLSerasi.exe

UPX packed file 14 IoCs

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

upx

resource	yara_rule
behavioral1/memory/5004-133-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/5004-136-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/5004-137-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/5004-138-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/5004-139-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/5004-141-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4984-151-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4984-155-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/2188-154-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/2188-159-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/2188-160-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/2188-161-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/3296-180-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/2188-181-0x0000000010000000-0x0000000010362000-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	33542bfff3727131d00639ac7264ca3ae7806ede3af57245716fa46ba24a3797.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	33542bfff3727131d00639ac7264ca3ae7806ede3af57245716fa46ba24a3797.exe
File opened for modification	C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe	33542bfff3727131d00639ac7264ca3ae7806ede3af57245716fa46ba24a3797.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
3116	2188	WerFault.exe	87

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\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	5004	33542bfff3727131d00639ac7264ca3ae7806ede3af57245716fa46ba24a3797.exe
Token: SeDebugPrivilege	4984	SQLSerasi.exe
Token: SeDebugPrivilege	2188	SQLSerasi.exe
Token: SeDebugPrivilege	2188	SQLSerasi.exe
Token: SeDebugPrivilege	2188	SQLSerasi.exe
Token: SeDebugPrivilege	3296	SQLSerasi.exe
Token: SeDebugPrivilege	3296	SQLSerasi.exe
Token: SeDebugPrivilege	4620	SQLSerasi.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 5004 wrote to memory of 4984	5004	33542bfff3727131d00639ac7264ca3ae7806ede3af57245716fa46ba24a3797.exe	85
PID 5004 wrote to memory of 4984	5004	33542bfff3727131d00639ac7264ca3ae7806ede3af57245716fa46ba24a3797.exe	85
PID 5004 wrote to memory of 4984	5004	33542bfff3727131d00639ac7264ca3ae7806ede3af57245716fa46ba24a3797.exe	85
PID 2188 wrote to memory of 3296	2188	SQLSerasi.exe	90
PID 2188 wrote to memory of 3296	2188	SQLSerasi.exe	90
PID 2188 wrote to memory of 3296	2188	SQLSerasi.exe	90
PID 2188 wrote to memory of 4620	2188	SQLSerasi.exe	92
PID 2188 wrote to memory of 4620	2188	SQLSerasi.exe	92
PID 2188 wrote to memory of 4620	2188	SQLSerasi.exe	92

C:\Users\Admin\AppData\Local\Temp\33542bfff3727131d00639ac7264ca3ae7806ede3af57245716fa46ba24a3797.exe
"C:\Users\Admin\AppData\Local\Temp\33542bfff3727131d00639ac7264ca3ae7806ede3af57245716fa46ba24a3797.exe"
1⤵
- Checks computer location settings
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5004
- 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:4984

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:2188
- 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:3296
- 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:4620
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2188 -s 576
  2⤵
  - Program crash
  PID:3116

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 2188 -ip 2188
1⤵
PID:1080

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
b55a6defde445c1e9f9e0e33a297d362

SHA1
b9a01239db85b5f60ccd41c5dbe6f15e4d6635a0

SHA256
c8f4c8a4ce47b8404e18456d7cc0322c6de6d686bf4c82445020d1eb28910e5d

SHA512
f43064f132f24ad3de41da5f2109d39a019718252628f61b2656939fc460e4a9e5c13e7d84ccb57c04424c91fc909db86d04bbec424b7cee9b6a7a38a9377e58

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

Filesize
39.4MB

MD5
b55a6defde445c1e9f9e0e33a297d362

SHA1
b9a01239db85b5f60ccd41c5dbe6f15e4d6635a0

SHA256
c8f4c8a4ce47b8404e18456d7cc0322c6de6d686bf4c82445020d1eb28910e5d

SHA512
f43064f132f24ad3de41da5f2109d39a019718252628f61b2656939fc460e4a9e5c13e7d84ccb57c04424c91fc909db86d04bbec424b7cee9b6a7a38a9377e58

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

Filesize
39.4MB

MD5
b55a6defde445c1e9f9e0e33a297d362

SHA1
b9a01239db85b5f60ccd41c5dbe6f15e4d6635a0

SHA256
c8f4c8a4ce47b8404e18456d7cc0322c6de6d686bf4c82445020d1eb28910e5d

SHA512
f43064f132f24ad3de41da5f2109d39a019718252628f61b2656939fc460e4a9e5c13e7d84ccb57c04424c91fc909db86d04bbec424b7cee9b6a7a38a9377e58

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

Filesize
39.4MB

MD5
b55a6defde445c1e9f9e0e33a297d362

SHA1
b9a01239db85b5f60ccd41c5dbe6f15e4d6635a0

SHA256
c8f4c8a4ce47b8404e18456d7cc0322c6de6d686bf4c82445020d1eb28910e5d

SHA512
f43064f132f24ad3de41da5f2109d39a019718252628f61b2656939fc460e4a9e5c13e7d84ccb57c04424c91fc909db86d04bbec424b7cee9b6a7a38a9377e58

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

Filesize
39.4MB

MD5
b55a6defde445c1e9f9e0e33a297d362

SHA1
b9a01239db85b5f60ccd41c5dbe6f15e4d6635a0

SHA256
c8f4c8a4ce47b8404e18456d7cc0322c6de6d686bf4c82445020d1eb28910e5d

SHA512
f43064f132f24ad3de41da5f2109d39a019718252628f61b2656939fc460e4a9e5c13e7d84ccb57c04424c91fc909db86d04bbec424b7cee9b6a7a38a9377e58

Download Submit
memory/2188-181-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/2188-154-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/2188-159-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/2188-160-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/2188-161-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/2188-157-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/3296-167-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/3296-180-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4620-178-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4620-179-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4984-162-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4984-151-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4984-148-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4984-155-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/5004-141-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/5004-145-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/5004-132-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/5004-140-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/5004-139-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/5004-138-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/5004-137-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/5004-136-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/5004-133-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads