gh0strat | 8519d4df191de410790bf645b0feff83a6d236452865b112e9bd7feb2268dfa6

Analysis

max time kernel
149s
max time network
139s
platform
windows10-1703_x64
resource
win10-20220901-en
resource tags

arch:x64arch:x86image:win10-20220901-enlocale:en-usos:windows10-1703-x64system
submitted
09/10/2022, 09:40

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General

Target

8519d4df191de410790bf645b0feff83a6d236452865b112e9bd7feb2268dfa6.exe
Size

375KB
MD5

27143bc43f0b51fd73f09f5e720f737b
SHA1

b47bf6e106c7c4b125cb6b6f910bf1992d8f9ec4
SHA256

8519d4df191de410790bf645b0feff83a6d236452865b112e9bd7feb2268dfa6
SHA512

d6864e21a8c1bd0563e0ffb58072d16699ea58e18f490d11ed2b2caa32259c00b83fc73be516464b7fef7e01f4c866e4a72fb23a4f87b114106b951cc3795383
SSDEEP

6144:/v5zQJVb5p72cHF1ybDFwekh212KhvwIb759QOaBjpaVRPu23E2rJmWjFc94:/4VOiF1WD7kE1dTYOi8V5u23zmWFy4

Score

10^/10

gh0strat rat upx

Malware Config

Signatures

Gh0st RAT payload 10 IoCs

resource	yara_rule
behavioral1/memory/3048-171-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/3048-172-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/3048-173-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/3048-174-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/2348-256-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4780-298-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4780-300-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4208-358-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4780-370-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4208-372-0x0000000010000000-0x0000000010362000-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

pid	Process
2348	SQLSerasi.exe
4780	SQLSerasi.exe
4208	SQLSerasi.exe

UPX packed file 11 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3048-167-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/3048-171-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/3048-172-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/3048-173-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/3048-174-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/2348-256-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4780-298-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4780-300-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4208-358-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4780-370-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4208-372-0x0000000010000000-0x0000000010362000-memory.dmp	upx

Drops file in System32 directory 5 IoCs

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

description	ioc	Process
File created	C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe	8519d4df191de410790bf645b0feff83a6d236452865b112e9bd7feb2268dfa6.exe
File opened for modification	C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe	8519d4df191de410790bf645b0feff83a6d236452865b112e9bd7feb2268dfa6.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

description	ioc	Process
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
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1	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 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	3048	8519d4df191de410790bf645b0feff83a6d236452865b112e9bd7feb2268dfa6.exe
Token: SeDebugPrivilege	2348	SQLSerasi.exe
Token: SeDebugPrivilege	4780	SQLSerasi.exe
Token: SeDebugPrivilege	4780	SQLSerasi.exe
Token: SeDebugPrivilege	4208	SQLSerasi.exe
Token: SeDebugPrivilege	4208	SQLSerasi.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3048 wrote to memory of 2348	3048	8519d4df191de410790bf645b0feff83a6d236452865b112e9bd7feb2268dfa6.exe	66
PID 3048 wrote to memory of 2348	3048	8519d4df191de410790bf645b0feff83a6d236452865b112e9bd7feb2268dfa6.exe	66
PID 3048 wrote to memory of 2348	3048	8519d4df191de410790bf645b0feff83a6d236452865b112e9bd7feb2268dfa6.exe	66
PID 4780 wrote to memory of 4208	4780	SQLSerasi.exe	68
PID 4780 wrote to memory of 4208	4780	SQLSerasi.exe	68
PID 4780 wrote to memory of 4208	4780	SQLSerasi.exe	68

C:\Users\Admin\AppData\Local\Temp\8519d4df191de410790bf645b0feff83a6d236452865b112e9bd7feb2268dfa6.exe
"C:\Users\Admin\AppData\Local\Temp\8519d4df191de410790bf645b0feff83a6d236452865b112e9bd7feb2268dfa6.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3048
- 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:2348

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:4780
- 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:4208

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
39.4MB

MD5
d60821ac8c10da8f7079e6c3741a4c23

SHA1
0e1f38140a657ba8d17210be63c078f2fb6cfab6

SHA256
c918bdd603595eecf3f103e25514e6008519cb10a94102cc02a60dcac8b8ba68

SHA512
790157c0ede3ea24aad65187d7c96c393c559726d7c61576363fa4f56f73a3289c5c8b93e052a8f4e492f8e6e07f1d265b13a7a332f8c77dffb0c0d2b0112a78

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

Filesize
39.4MB

MD5
d60821ac8c10da8f7079e6c3741a4c23

SHA1
0e1f38140a657ba8d17210be63c078f2fb6cfab6

SHA256
c918bdd603595eecf3f103e25514e6008519cb10a94102cc02a60dcac8b8ba68

SHA512
790157c0ede3ea24aad65187d7c96c393c559726d7c61576363fa4f56f73a3289c5c8b93e052a8f4e492f8e6e07f1d265b13a7a332f8c77dffb0c0d2b0112a78

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

Filesize
39.4MB

MD5
d60821ac8c10da8f7079e6c3741a4c23

SHA1
0e1f38140a657ba8d17210be63c078f2fb6cfab6

SHA256
c918bdd603595eecf3f103e25514e6008519cb10a94102cc02a60dcac8b8ba68

SHA512
790157c0ede3ea24aad65187d7c96c393c559726d7c61576363fa4f56f73a3289c5c8b93e052a8f4e492f8e6e07f1d265b13a7a332f8c77dffb0c0d2b0112a78

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

Filesize
39.4MB

MD5
d60821ac8c10da8f7079e6c3741a4c23

SHA1
0e1f38140a657ba8d17210be63c078f2fb6cfab6

SHA256
c918bdd603595eecf3f103e25514e6008519cb10a94102cc02a60dcac8b8ba68

SHA512
790157c0ede3ea24aad65187d7c96c393c559726d7c61576363fa4f56f73a3289c5c8b93e052a8f4e492f8e6e07f1d265b13a7a332f8c77dffb0c0d2b0112a78

Download Submit
memory/2348-256-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/2348-302-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/3048-152-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/3048-165-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/3048-121-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/3048-122-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/3048-123-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/3048-124-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/3048-125-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/3048-126-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/3048-127-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/3048-128-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/3048-155-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/3048-130-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/3048-131-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/3048-132-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/3048-133-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/3048-134-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/3048-135-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/3048-136-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/3048-138-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/3048-137-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/3048-139-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/3048-140-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/3048-141-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/3048-142-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/3048-143-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/3048-144-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/3048-145-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/3048-146-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/3048-147-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/3048-148-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/3048-149-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/3048-150-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/3048-151-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/3048-119-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/3048-157-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/3048-154-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/3048-129-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/3048-120-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/3048-153-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/3048-158-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/3048-159-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/3048-160-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/3048-161-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/3048-162-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/3048-163-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/3048-164-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/3048-156-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/3048-166-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/3048-167-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/3048-170-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/3048-171-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/3048-172-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/3048-173-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/3048-174-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/3048-175-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/3048-176-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/3048-177-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/3048-178-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/3048-179-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/3048-180-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/3048-181-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/3048-182-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/3048-183-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/3048-190-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/3048-117-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/3048-118-0x0000000077470000-0x00000000775FE000-memory.dmp

Filesize
1.6MB

Download
memory/4208-358-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4208-371-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4208-372-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4780-300-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4780-298-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4780-369-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4780-370-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download