gh0strat | 7f91a01ff7e98f0475e6cecf03e7760162ba8979772c171cb21cfb619d457181

Analysis

max time kernel
143s
max time network
144s
platform
windows10-1703_x64
resource
win10-20220718-en
resource tags

arch:x64arch:x86image:win10-20220718-enlocale:en-usos:windows10-1703-x64system
submitted
06-08-2022 05:52

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General

Target

7f91a01ff7e98f0475e6cecf03e7760162ba8979772c171cb21cfb619d457181.exe
Size

375KB
MD5

bf01905b45b0b61fa62f73b9f3f54324
SHA1

3d43b7f4a394621baf814e702110344ea0aa3a11
SHA256

7f91a01ff7e98f0475e6cecf03e7760162ba8979772c171cb21cfb619d457181
SHA512

9f52b816cb308a019993786b35a562e39342ae2d5b1d4fca2bf11907da1e7ccbbcbfc48d5596149567eaa50ec69fba658258a0551eda2bb105365f2de5d215a1

Score

10^/10

gh0strat rat upx

Malware Config

Signatures

Gh0st RAT payload 9 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1788-172-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/1788-173-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/1788-178-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4232-255-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/2232-299-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/1900-358-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/1900-359-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/2232-371-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/1900-372-0x0000000010000000-0x0000000010362000-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

4232 SQLSerasi.exe
2232 SQLSerasi.exe
1900 SQLSerasi.exe

pid	process
4232	SQLSerasi.exe
2232	SQLSerasi.exe
1900	SQLSerasi.exe

UPX packed file 10 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/1788-167-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/1788-172-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/1788-173-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/1788-178-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4232-255-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/2232-299-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/1900-358-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/1900-359-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/2232-371-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/1900-372-0x0000000010000000-0x0000000010362000-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\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
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

Processes:

7f91a01ff7e98f0475e6cecf03e7760162ba8979772c171cb21cfb619d457181.exe

description	ioc	process
File created	C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe	7f91a01ff7e98f0475e6cecf03e7760162ba8979772c171cb21cfb619d457181.exe
File opened for modification	C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe	7f91a01ff7e98f0475e6cecf03e7760162ba8979772c171cb21cfb619d457181.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 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
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	SQLSerasi.exe

Modifies data under HKEY_USERS 8 IoCs

Processes:

SQLSerasi.exe

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 6 IoCs

Processes:

7f91a01ff7e98f0475e6cecf03e7760162ba8979772c171cb21cfb619d457181.exeSQLSerasi.exeSQLSerasi.exeSQLSerasi.exe

description	pid	process
Token: SeDebugPrivilege	1788	7f91a01ff7e98f0475e6cecf03e7760162ba8979772c171cb21cfb619d457181.exe
Token: SeDebugPrivilege	4232	SQLSerasi.exe
Token: SeDebugPrivilege	2232	SQLSerasi.exe
Token: SeDebugPrivilege	2232	SQLSerasi.exe
Token: SeDebugPrivilege	1900	SQLSerasi.exe
Token: SeDebugPrivilege	1900	SQLSerasi.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

7f91a01ff7e98f0475e6cecf03e7760162ba8979772c171cb21cfb619d457181.exeSQLSerasi.exe

description	pid	process	target process
PID 1788 wrote to memory of 4232	1788	7f91a01ff7e98f0475e6cecf03e7760162ba8979772c171cb21cfb619d457181.exe	SQLSerasi.exe
PID 1788 wrote to memory of 4232	1788	7f91a01ff7e98f0475e6cecf03e7760162ba8979772c171cb21cfb619d457181.exe	SQLSerasi.exe
PID 1788 wrote to memory of 4232	1788	7f91a01ff7e98f0475e6cecf03e7760162ba8979772c171cb21cfb619d457181.exe	SQLSerasi.exe
PID 2232 wrote to memory of 1900	2232	SQLSerasi.exe	SQLSerasi.exe
PID 2232 wrote to memory of 1900	2232	SQLSerasi.exe	SQLSerasi.exe
PID 2232 wrote to memory of 1900	2232	SQLSerasi.exe	SQLSerasi.exe

C:\Users\Admin\AppData\Local\Temp\7f91a01ff7e98f0475e6cecf03e7760162ba8979772c171cb21cfb619d457181.exe
"C:\Users\Admin\AppData\Local\Temp\7f91a01ff7e98f0475e6cecf03e7760162ba8979772c171cb21cfb619d457181.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1788

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:4232

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:2232

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:1900

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
45bdfbeeb19cff7013e0be78d96dd5f1

SHA1
4ad8d5c145240eec98fa7c5cf144bb0bf08a9267

SHA256
51d78d09af66c5de34a6acffaa9e53408f3175609c2a74e64d9b92f507ebc2e2

SHA512
4116195e1a3adc97567673659f780af014064ceb99d6f5a92a7a37429795b70f607a7af89e9f8db75c2377a4b6cf16b41e642795d25b69262b3dd9ee50b09b20

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

MD5
45bdfbeeb19cff7013e0be78d96dd5f1

SHA1
4ad8d5c145240eec98fa7c5cf144bb0bf08a9267

SHA256
51d78d09af66c5de34a6acffaa9e53408f3175609c2a74e64d9b92f507ebc2e2

SHA512
4116195e1a3adc97567673659f780af014064ceb99d6f5a92a7a37429795b70f607a7af89e9f8db75c2377a4b6cf16b41e642795d25b69262b3dd9ee50b09b20

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

MD5
45bdfbeeb19cff7013e0be78d96dd5f1

SHA1
4ad8d5c145240eec98fa7c5cf144bb0bf08a9267

SHA256
51d78d09af66c5de34a6acffaa9e53408f3175609c2a74e64d9b92f507ebc2e2

SHA512
4116195e1a3adc97567673659f780af014064ceb99d6f5a92a7a37429795b70f607a7af89e9f8db75c2377a4b6cf16b41e642795d25b69262b3dd9ee50b09b20

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

MD5
45bdfbeeb19cff7013e0be78d96dd5f1

SHA1
4ad8d5c145240eec98fa7c5cf144bb0bf08a9267

SHA256
51d78d09af66c5de34a6acffaa9e53408f3175609c2a74e64d9b92f507ebc2e2

SHA512
4116195e1a3adc97567673659f780af014064ceb99d6f5a92a7a37429795b70f607a7af89e9f8db75c2377a4b6cf16b41e642795d25b69262b3dd9ee50b09b20

Download Submit
memory/1788-153-0x0000000077110000-0x000000007729E000-memory.dmp

Filesize
1.6MB

Download
memory/1788-189-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/1788-119-0x0000000077110000-0x000000007729E000-memory.dmp

Filesize
1.6MB

Download
memory/1788-120-0x0000000077110000-0x000000007729E000-memory.dmp

Filesize
1.6MB

Download
memory/1788-121-0x0000000077110000-0x000000007729E000-memory.dmp

Filesize
1.6MB

Download
memory/1788-122-0x0000000077110000-0x000000007729E000-memory.dmp

Filesize
1.6MB

Download
memory/1788-123-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/1788-124-0x0000000077110000-0x000000007729E000-memory.dmp

Filesize
1.6MB

Download
memory/1788-125-0x0000000077110000-0x000000007729E000-memory.dmp

Filesize
1.6MB

Download
memory/1788-126-0x0000000077110000-0x000000007729E000-memory.dmp

Filesize
1.6MB

Download
memory/1788-127-0x0000000077110000-0x000000007729E000-memory.dmp

Filesize
1.6MB

Download
memory/1788-128-0x0000000077110000-0x000000007729E000-memory.dmp

Filesize
1.6MB

Download
memory/1788-130-0x0000000077110000-0x000000007729E000-memory.dmp

Filesize
1.6MB

Download
memory/1788-131-0x0000000077110000-0x000000007729E000-memory.dmp

Filesize
1.6MB

Download
memory/1788-132-0x0000000077110000-0x000000007729E000-memory.dmp

Filesize
1.6MB

Download
memory/1788-129-0x0000000077110000-0x000000007729E000-memory.dmp

Filesize
1.6MB

Download
memory/1788-134-0x0000000077110000-0x000000007729E000-memory.dmp

Filesize
1.6MB

Download
memory/1788-136-0x0000000077110000-0x000000007729E000-memory.dmp

Filesize
1.6MB

Download
memory/1788-135-0x0000000077110000-0x000000007729E000-memory.dmp

Filesize
1.6MB

Download
memory/1788-138-0x0000000077110000-0x000000007729E000-memory.dmp

Filesize
1.6MB

Download
memory/1788-137-0x0000000077110000-0x000000007729E000-memory.dmp

Filesize
1.6MB

Download
memory/1788-133-0x0000000077110000-0x000000007729E000-memory.dmp

Filesize
1.6MB

Download
memory/1788-139-0x0000000077110000-0x000000007729E000-memory.dmp

Filesize
1.6MB

Download
memory/1788-140-0x0000000077110000-0x000000007729E000-memory.dmp

Filesize
1.6MB

Download
memory/1788-141-0x0000000077110000-0x000000007729E000-memory.dmp

Filesize
1.6MB

Download
memory/1788-142-0x0000000077110000-0x000000007729E000-memory.dmp

Filesize
1.6MB

Download
memory/1788-143-0x0000000077110000-0x000000007729E000-memory.dmp

Filesize
1.6MB

Download
memory/1788-144-0x0000000077110000-0x000000007729E000-memory.dmp

Filesize
1.6MB

Download
memory/1788-145-0x0000000077110000-0x000000007729E000-memory.dmp

Filesize
1.6MB

Download
memory/1788-146-0x0000000077110000-0x000000007729E000-memory.dmp

Filesize
1.6MB

Download
memory/1788-147-0x0000000077110000-0x000000007729E000-memory.dmp

Filesize
1.6MB

Download
memory/1788-148-0x0000000077110000-0x000000007729E000-memory.dmp

Filesize
1.6MB

Download
memory/1788-149-0x0000000077110000-0x000000007729E000-memory.dmp

Filesize
1.6MB

Download
memory/1788-150-0x0000000077110000-0x000000007729E000-memory.dmp

Filesize
1.6MB

Download
memory/1788-151-0x0000000077110000-0x000000007729E000-memory.dmp

Filesize
1.6MB

Download
memory/1788-152-0x0000000077110000-0x000000007729E000-memory.dmp

Filesize
1.6MB

Download
memory/1788-165-0x0000000077110000-0x000000007729E000-memory.dmp

Filesize
1.6MB

Download
memory/1788-154-0x0000000077110000-0x000000007729E000-memory.dmp

Filesize
1.6MB

Download
memory/1788-118-0x0000000077110000-0x000000007729E000-memory.dmp

Filesize
1.6MB

Download
memory/1788-156-0x0000000077110000-0x000000007729E000-memory.dmp

Filesize
1.6MB

Download
memory/1788-157-0x0000000077110000-0x000000007729E000-memory.dmp

Filesize
1.6MB

Download
memory/1788-158-0x0000000077110000-0x000000007729E000-memory.dmp

Filesize
1.6MB

Download
memory/1788-159-0x0000000077110000-0x000000007729E000-memory.dmp

Filesize
1.6MB

Download
memory/1788-160-0x0000000077110000-0x000000007729E000-memory.dmp

Filesize
1.6MB

Download
memory/1788-161-0x0000000077110000-0x000000007729E000-memory.dmp

Filesize
1.6MB

Download
memory/1788-162-0x0000000077110000-0x000000007729E000-memory.dmp

Filesize
1.6MB

Download
memory/1788-163-0x0000000077110000-0x000000007729E000-memory.dmp

Filesize
1.6MB

Download
memory/1788-164-0x0000000077110000-0x000000007729E000-memory.dmp

Filesize
1.6MB

Download
memory/1788-117-0x0000000077110000-0x000000007729E000-memory.dmp

Filesize
1.6MB

Download
memory/1788-166-0x0000000077110000-0x000000007729E000-memory.dmp

Filesize
1.6MB

Download
memory/1788-167-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/1788-172-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/1788-170-0x0000000077110000-0x000000007729E000-memory.dmp

Filesize
1.6MB

Download
memory/1788-173-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/1788-174-0x0000000077110000-0x000000007729E000-memory.dmp

Filesize
1.6MB

Download
memory/1788-175-0x0000000077110000-0x000000007729E000-memory.dmp

Filesize
1.6MB

Download
memory/1788-176-0x0000000077110000-0x000000007729E000-memory.dmp

Filesize
1.6MB

Download
memory/1788-177-0x0000000077110000-0x000000007729E000-memory.dmp

Filesize
1.6MB

Download
memory/1788-178-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/1788-179-0x0000000077110000-0x000000007729E000-memory.dmp

Filesize
1.6MB

Download
memory/1788-180-0x0000000077110000-0x000000007729E000-memory.dmp

Filesize
1.6MB

Download
memory/1788-181-0x0000000077110000-0x000000007729E000-memory.dmp

Filesize
1.6MB

Download
memory/1788-182-0x0000000077110000-0x000000007729E000-memory.dmp

Filesize
1.6MB

Download
memory/1788-183-0x0000000077110000-0x000000007729E000-memory.dmp

Filesize
1.6MB

Download
memory/1788-155-0x0000000077110000-0x000000007729E000-memory.dmp

Filesize
1.6MB

Download
memory/1900-302-0x0000000000000000-mapping.dmp

Download
memory/1900-344-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/1900-358-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/1900-359-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/1900-372-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/2232-299-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/2232-370-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/2232-371-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4232-186-0x0000000000000000-mapping.dmp

Download
memory/4232-255-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4232-300-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download