gh0strat | 8f3f143e28eead11527fb7ec4571e526ee8a722683b2a7680b42b8c740e3fdec

Analysis

max time kernel
149s
max time network
140s
platform
windows10-1703_x64
resource
win10-20220901-en
resource tags

arch:x64arch:x86image:win10-20220901-enlocale:en-usos:windows10-1703-x64system
submitted
23-09-2022 06:05

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General

Target

8f3f143e28eead11527fb7ec4571e526ee8a722683b2a7680b42b8c740e3fdec.exe
Size

375KB
MD5

2fe539abe7a94f228c035732e9f94fa2
SHA1

2a6e2db0c7b5796fef32591d0b124f9ac82c76bd
SHA256

8f3f143e28eead11527fb7ec4571e526ee8a722683b2a7680b42b8c740e3fdec
SHA512

8ec31ffec79072ed9ff3952f9172e8bb7cef37b0521d0319308731b0ffac5ea46bc765d5cafb80a873390ec87a79fa09a86fb549ce633e9d303025f7bdca9e65
SSDEEP

6144:ov5zQJVb5p72cHF1ybDFwekh212KhvwIb759QOaBjpaVRPu23E2rJmWjFc94:o4VOiF1WD7kE1dTYOi8V5u23zmWFy4

Score

10^/10

gh0strat rat upx

Malware Config

Signatures

Gh0st RAT payload 9 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2492-174-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/2492-175-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/2492-177-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/2492-179-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/932-283-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4288-303-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4516-362-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4516-364-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4288-373-0x0000000010000000-0x0000000010362000-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 3 IoCs

Processes:

SQLSerasi.exeSQLSerasi.exeSQLSerasi.exe

pid process

932 SQLSerasi.exe
4288 SQLSerasi.exe
4516 SQLSerasi.exe

pid	process
932	SQLSerasi.exe
4288	SQLSerasi.exe
4516	SQLSerasi.exe

UPX packed file 10 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/2492-170-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/2492-174-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/2492-175-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/2492-177-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/2492-179-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/932-283-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4288-303-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4516-362-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4516-364-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4288-373-0x0000000010000000-0x0000000010362000-memory.dmp	upx

Drops file in System32 directory 5 IoCs

Processes:

SQLSerasi.exe

description	ioc	process
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\counters2.dat	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
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies	SQLSerasi.exe

Drops file in Program Files directory 2 IoCs

Processes:

8f3f143e28eead11527fb7ec4571e526ee8a722683b2a7680b42b8c740e3fdec.exe

description	ioc	process
File created	C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe	8f3f143e28eead11527fb7ec4571e526ee8a722683b2a7680b42b8c740e3fdec.exe
File opened for modification	C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe	8f3f143e28eead11527fb7ec4571e526ee8a722683b2a7680b42b8c740e3fdec.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

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

Processes:

SQLSerasi.exe

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

Processes:

SQLSerasi.exe

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 6 IoCs

Processes:

8f3f143e28eead11527fb7ec4571e526ee8a722683b2a7680b42b8c740e3fdec.exeSQLSerasi.exeSQLSerasi.exeSQLSerasi.exe

description	pid	process
Token: SeDebugPrivilege	2492	8f3f143e28eead11527fb7ec4571e526ee8a722683b2a7680b42b8c740e3fdec.exe
Token: SeDebugPrivilege	932	SQLSerasi.exe
Token: SeDebugPrivilege	4288	SQLSerasi.exe
Token: SeDebugPrivilege	4288	SQLSerasi.exe
Token: SeDebugPrivilege	4516	SQLSerasi.exe
Token: SeDebugPrivilege	4516	SQLSerasi.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

8f3f143e28eead11527fb7ec4571e526ee8a722683b2a7680b42b8c740e3fdec.exeSQLSerasi.exe

description	pid	process	target process
PID 2492 wrote to memory of 932	2492	8f3f143e28eead11527fb7ec4571e526ee8a722683b2a7680b42b8c740e3fdec.exe	SQLSerasi.exe
PID 2492 wrote to memory of 932	2492	8f3f143e28eead11527fb7ec4571e526ee8a722683b2a7680b42b8c740e3fdec.exe	SQLSerasi.exe
PID 2492 wrote to memory of 932	2492	8f3f143e28eead11527fb7ec4571e526ee8a722683b2a7680b42b8c740e3fdec.exe	SQLSerasi.exe
PID 4288 wrote to memory of 4516	4288	SQLSerasi.exe	SQLSerasi.exe
PID 4288 wrote to memory of 4516	4288	SQLSerasi.exe	SQLSerasi.exe
PID 4288 wrote to memory of 4516	4288	SQLSerasi.exe	SQLSerasi.exe

C:\Users\Admin\AppData\Local\Temp\8f3f143e28eead11527fb7ec4571e526ee8a722683b2a7680b42b8c740e3fdec.exe
"C:\Users\Admin\AppData\Local\Temp\8f3f143e28eead11527fb7ec4571e526ee8a722683b2a7680b42b8c740e3fdec.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2492

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:932

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:4288

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:4516

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Query Registry

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe
Filesize
39.4MB

MD5
5e9fd2a0eaa18cdb9656f4e64b804577

SHA1
19f1ebc5cbcac6ff33f6e744798eb525a49e796b

SHA256
9572b28f1d792f2f599c5cb38ee7947fbfb4b3ee1e36f3b53d51f26220225673

SHA512
9a49bcb5317fad463be6caa643966469e07e3e02b40210d6f8b59453d2dc075aadf866efb01bc8c8f50dd64f2d1803b1e0bf63e449eacc2846dfc68104611d8a

Download Submit
C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe
Filesize
39.4MB

MD5
5e9fd2a0eaa18cdb9656f4e64b804577

SHA1
19f1ebc5cbcac6ff33f6e744798eb525a49e796b

SHA256
9572b28f1d792f2f599c5cb38ee7947fbfb4b3ee1e36f3b53d51f26220225673

SHA512
9a49bcb5317fad463be6caa643966469e07e3e02b40210d6f8b59453d2dc075aadf866efb01bc8c8f50dd64f2d1803b1e0bf63e449eacc2846dfc68104611d8a

Download Submit
C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe
Filesize
39.4MB

MD5
5e9fd2a0eaa18cdb9656f4e64b804577

SHA1
19f1ebc5cbcac6ff33f6e744798eb525a49e796b

SHA256
9572b28f1d792f2f599c5cb38ee7947fbfb4b3ee1e36f3b53d51f26220225673

SHA512
9a49bcb5317fad463be6caa643966469e07e3e02b40210d6f8b59453d2dc075aadf866efb01bc8c8f50dd64f2d1803b1e0bf63e449eacc2846dfc68104611d8a

Download Submit
C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe
Filesize
39.4MB

MD5
5e9fd2a0eaa18cdb9656f4e64b804577

SHA1
19f1ebc5cbcac6ff33f6e744798eb525a49e796b

SHA256
9572b28f1d792f2f599c5cb38ee7947fbfb4b3ee1e36f3b53d51f26220225673

SHA512
9a49bcb5317fad463be6caa643966469e07e3e02b40210d6f8b59453d2dc075aadf866efb01bc8c8f50dd64f2d1803b1e0bf63e449eacc2846dfc68104611d8a

Download Submit
memory/932-189-0x0000000000000000-mapping.dmp

Download
memory/932-283-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/932-305-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/2492-155-0x0000000077D90000-0x0000000077F1E000-memory.dmp

Filesize
1.6MB

Download
memory/2492-164-0x0000000077D90000-0x0000000077F1E000-memory.dmp

Filesize
1.6MB

Download
memory/2492-124-0x0000000077D90000-0x0000000077F1E000-memory.dmp

Filesize
1.6MB

Download
memory/2492-126-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/2492-125-0x0000000077D90000-0x0000000077F1E000-memory.dmp

Filesize
1.6MB

Download
memory/2492-158-0x0000000077D90000-0x0000000077F1E000-memory.dmp

Filesize
1.6MB

Download
memory/2492-128-0x0000000077D90000-0x0000000077F1E000-memory.dmp

Filesize
1.6MB

Download
memory/2492-129-0x0000000077D90000-0x0000000077F1E000-memory.dmp

Filesize
1.6MB

Download
memory/2492-130-0x0000000077D90000-0x0000000077F1E000-memory.dmp

Filesize
1.6MB

Download
memory/2492-131-0x0000000077D90000-0x0000000077F1E000-memory.dmp

Filesize
1.6MB

Download
memory/2492-132-0x0000000077D90000-0x0000000077F1E000-memory.dmp

Filesize
1.6MB

Download
memory/2492-133-0x0000000077D90000-0x0000000077F1E000-memory.dmp

Filesize
1.6MB

Download
memory/2492-134-0x0000000077D90000-0x0000000077F1E000-memory.dmp

Filesize
1.6MB

Download
memory/2492-135-0x0000000077D90000-0x0000000077F1E000-memory.dmp

Filesize
1.6MB

Download
memory/2492-136-0x0000000077D90000-0x0000000077F1E000-memory.dmp

Filesize
1.6MB

Download
memory/2492-137-0x0000000077D90000-0x0000000077F1E000-memory.dmp

Filesize
1.6MB

Download
memory/2492-138-0x0000000077D90000-0x0000000077F1E000-memory.dmp

Filesize
1.6MB

Download
memory/2492-140-0x0000000077D90000-0x0000000077F1E000-memory.dmp

Filesize
1.6MB

Download
memory/2492-139-0x0000000077D90000-0x0000000077F1E000-memory.dmp

Filesize
1.6MB

Download
memory/2492-141-0x0000000077D90000-0x0000000077F1E000-memory.dmp

Filesize
1.6MB

Download
memory/2492-142-0x0000000077D90000-0x0000000077F1E000-memory.dmp

Filesize
1.6MB

Download
memory/2492-143-0x0000000077D90000-0x0000000077F1E000-memory.dmp

Filesize
1.6MB

Download
memory/2492-144-0x0000000077D90000-0x0000000077F1E000-memory.dmp

Filesize
1.6MB

Download
memory/2492-145-0x0000000077D90000-0x0000000077F1E000-memory.dmp

Filesize
1.6MB

Download
memory/2492-146-0x0000000077D90000-0x0000000077F1E000-memory.dmp

Filesize
1.6MB

Download
memory/2492-147-0x0000000077D90000-0x0000000077F1E000-memory.dmp

Filesize
1.6MB

Download
memory/2492-148-0x0000000077D90000-0x0000000077F1E000-memory.dmp

Filesize
1.6MB

Download
memory/2492-149-0x0000000077D90000-0x0000000077F1E000-memory.dmp

Filesize
1.6MB

Download
memory/2492-150-0x0000000077D90000-0x0000000077F1E000-memory.dmp

Filesize
1.6MB

Download
memory/2492-151-0x0000000077D90000-0x0000000077F1E000-memory.dmp

Filesize
1.6MB

Download
memory/2492-152-0x0000000077D90000-0x0000000077F1E000-memory.dmp

Filesize
1.6MB

Download
memory/2492-153-0x0000000077D90000-0x0000000077F1E000-memory.dmp

Filesize
1.6MB

Download
memory/2492-154-0x0000000077D90000-0x0000000077F1E000-memory.dmp

Filesize
1.6MB

Download
memory/2492-122-0x0000000077D90000-0x0000000077F1E000-memory.dmp

Filesize
1.6MB

Download
memory/2492-156-0x0000000077D90000-0x0000000077F1E000-memory.dmp

Filesize
1.6MB

Download
memory/2492-157-0x0000000077D90000-0x0000000077F1E000-memory.dmp

Filesize
1.6MB

Download
memory/2492-127-0x0000000077D90000-0x0000000077F1E000-memory.dmp

Filesize
1.6MB

Download
memory/2492-159-0x0000000077D90000-0x0000000077F1E000-memory.dmp

Filesize
1.6MB

Download
memory/2492-123-0x0000000077D90000-0x0000000077F1E000-memory.dmp

Filesize
1.6MB

Download
memory/2492-161-0x0000000077D90000-0x0000000077F1E000-memory.dmp

Filesize
1.6MB

Download
memory/2492-162-0x0000000077D90000-0x0000000077F1E000-memory.dmp

Filesize
1.6MB

Download
memory/2492-160-0x0000000077D90000-0x0000000077F1E000-memory.dmp

Filesize
1.6MB

Download
memory/2492-163-0x0000000077D90000-0x0000000077F1E000-memory.dmp

Filesize
1.6MB

Download
memory/2492-165-0x0000000077D90000-0x0000000077F1E000-memory.dmp

Filesize
1.6MB

Download
memory/2492-166-0x0000000077D90000-0x0000000077F1E000-memory.dmp

Filesize
1.6MB

Download
memory/2492-167-0x0000000077D90000-0x0000000077F1E000-memory.dmp

Filesize
1.6MB

Download
memory/2492-168-0x0000000077D90000-0x0000000077F1E000-memory.dmp

Filesize
1.6MB

Download
memory/2492-169-0x0000000077D90000-0x0000000077F1E000-memory.dmp

Filesize
1.6MB

Download
memory/2492-170-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/2492-173-0x0000000077D90000-0x0000000077F1E000-memory.dmp

Filesize
1.6MB

Download
memory/2492-174-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/2492-175-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/2492-177-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/2492-176-0x0000000077D90000-0x0000000077F1E000-memory.dmp

Filesize
1.6MB

Download
memory/2492-178-0x0000000077D90000-0x0000000077F1E000-memory.dmp

Filesize
1.6MB

Download
memory/2492-179-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/2492-180-0x0000000077D90000-0x0000000077F1E000-memory.dmp

Filesize
1.6MB

Download
memory/2492-181-0x0000000077D90000-0x0000000077F1E000-memory.dmp

Filesize
1.6MB

Download
memory/2492-182-0x0000000077D90000-0x0000000077F1E000-memory.dmp

Filesize
1.6MB

Download
memory/2492-183-0x0000000077D90000-0x0000000077F1E000-memory.dmp

Filesize
1.6MB

Download
memory/2492-184-0x0000000077D90000-0x0000000077F1E000-memory.dmp

Filesize
1.6MB

Download
memory/2492-185-0x0000000077D90000-0x0000000077F1E000-memory.dmp

Filesize
1.6MB

Download
memory/2492-186-0x0000000077D90000-0x0000000077F1E000-memory.dmp

Filesize
1.6MB

Download
memory/2492-193-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/2492-120-0x0000000077D90000-0x0000000077F1E000-memory.dmp

Filesize
1.6MB

Download
memory/2492-121-0x0000000077D90000-0x0000000077F1E000-memory.dmp

Filesize
1.6MB

Download
memory/4288-303-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4288-286-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4288-373-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4516-306-0x0000000000000000-mapping.dmp

Download
memory/4516-362-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4516-364-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4516-374-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download