gh0strat | b0d8c5c6fde25a820d1322325049b004fbbd214d03ac76707f6ee681cdfbaa21

Analysis

max time kernel
144s
max time network
134s
platform
windows10-1703_x64
resource
win10-20220812-en
resource tags

arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
submitted
26/09/2022, 06:45

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General

Target

b0d8c5c6fde25a820d1322325049b004fbbd214d03ac76707f6ee681cdfbaa21.exe
Size

375KB
MD5

e0b9db22bc5de042ce7cb2ad56a8aef4
SHA1

39f915d9cc43b7f162b221c8757be55e5f44bb0e
SHA256

b0d8c5c6fde25a820d1322325049b004fbbd214d03ac76707f6ee681cdfbaa21
SHA512

1bd085f5f289ff3feea6eb5730aceead00ac160a2f5e3f9a052f79f32d39c639cae4e657a721b6c7c18d6c306a018783819c2817b0651f2f08681ef64be292b3
SSDEEP

6144:5v5zQJVb5p72cHF1ybDFwekh212KhvwIb759QOaBjpaVRPu23E2rJmWjFc94:54VOiF1WD7kE1dTYOi8V5u23zmWFy4

Score

10^/10

gh0strat rat upx

Malware Config

Signatures

Gh0st RAT payload 8 IoCs

resource	yara_rule
behavioral1/memory/1524-169-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/1524-171-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/1524-172-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/1524-175-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/3348-278-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4196-299-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4124-358-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4196-368-0x0000000010000000-0x0000000010362000-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
3348	SQLSerasi.exe
4196	SQLSerasi.exe
4124	SQLSerasi.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1524-166-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/1524-169-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/1524-171-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/1524-172-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/1524-175-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/3348-278-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4196-299-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4124-358-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4196-368-0x0000000010000000-0x0000000010362000-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\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
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\counters2.dat	SQLSerasi.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe	b0d8c5c6fde25a820d1322325049b004fbbd214d03ac76707f6ee681cdfbaa21.exe
File created	C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe	b0d8c5c6fde25a820d1322325049b004fbbd214d03ac76707f6ee681cdfbaa21.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 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 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	1524	b0d8c5c6fde25a820d1322325049b004fbbd214d03ac76707f6ee681cdfbaa21.exe
Token: SeDebugPrivilege	3348	SQLSerasi.exe
Token: SeDebugPrivilege	4196	SQLSerasi.exe
Token: SeDebugPrivilege	4196	SQLSerasi.exe
Token: SeDebugPrivilege	4124	SQLSerasi.exe
Token: SeDebugPrivilege	4124	SQLSerasi.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1524 wrote to memory of 3348	1524	b0d8c5c6fde25a820d1322325049b004fbbd214d03ac76707f6ee681cdfbaa21.exe	66
PID 1524 wrote to memory of 3348	1524	b0d8c5c6fde25a820d1322325049b004fbbd214d03ac76707f6ee681cdfbaa21.exe	66
PID 1524 wrote to memory of 3348	1524	b0d8c5c6fde25a820d1322325049b004fbbd214d03ac76707f6ee681cdfbaa21.exe	66
PID 4196 wrote to memory of 4124	4196	SQLSerasi.exe	68
PID 4196 wrote to memory of 4124	4196	SQLSerasi.exe	68
PID 4196 wrote to memory of 4124	4196	SQLSerasi.exe	68

C:\Users\Admin\AppData\Local\Temp\b0d8c5c6fde25a820d1322325049b004fbbd214d03ac76707f6ee681cdfbaa21.exe
"C:\Users\Admin\AppData\Local\Temp\b0d8c5c6fde25a820d1322325049b004fbbd214d03ac76707f6ee681cdfbaa21.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1524
- 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:3348

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:4196
- 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:4124

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
e19158db013bbd705b2607ba72696419

SHA1
03241ec76f505a87ed51b59c669befa231544c6c

SHA256
9f7bc2faf33af6bd2fdf9c173a020dac31838adaa00762ac093dab5559a21164

SHA512
0f969c87d608b5babd64c5da61f78aa9ce553f848aff1589a29cc5fb12447002c7ca9aba2a78a3966926ea7d1c7052c4ff088553fe96be4a777c2c39fc687f62

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

Filesize
39.4MB

MD5
e19158db013bbd705b2607ba72696419

SHA1
03241ec76f505a87ed51b59c669befa231544c6c

SHA256
9f7bc2faf33af6bd2fdf9c173a020dac31838adaa00762ac093dab5559a21164

SHA512
0f969c87d608b5babd64c5da61f78aa9ce553f848aff1589a29cc5fb12447002c7ca9aba2a78a3966926ea7d1c7052c4ff088553fe96be4a777c2c39fc687f62

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

Filesize
39.4MB

MD5
e19158db013bbd705b2607ba72696419

SHA1
03241ec76f505a87ed51b59c669befa231544c6c

SHA256
9f7bc2faf33af6bd2fdf9c173a020dac31838adaa00762ac093dab5559a21164

SHA512
0f969c87d608b5babd64c5da61f78aa9ce553f848aff1589a29cc5fb12447002c7ca9aba2a78a3966926ea7d1c7052c4ff088553fe96be4a777c2c39fc687f62

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

Filesize
39.4MB

MD5
e19158db013bbd705b2607ba72696419

SHA1
03241ec76f505a87ed51b59c669befa231544c6c

SHA256
9f7bc2faf33af6bd2fdf9c173a020dac31838adaa00762ac093dab5559a21164

SHA512
0f969c87d608b5babd64c5da61f78aa9ce553f848aff1589a29cc5fb12447002c7ca9aba2a78a3966926ea7d1c7052c4ff088553fe96be4a777c2c39fc687f62

Download Submit
memory/1524-151-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-155-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-119-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-120-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-121-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-122-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-123-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-124-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-125-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-126-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-127-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-129-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-130-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-131-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-132-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-133-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-134-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-135-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-136-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-137-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-139-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-140-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-138-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-128-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/1524-141-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-142-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-143-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-154-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-145-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-146-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-147-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-148-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-149-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-150-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-117-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-152-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-118-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-153-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-144-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-156-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-157-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-158-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-159-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-160-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-161-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-162-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-163-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-164-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-165-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-166-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/1524-170-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-169-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/1524-171-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/1524-172-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/1524-173-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-174-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-175-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/1524-176-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-177-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-178-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-179-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-180-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-181-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-182-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-189-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/1524-116-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/3348-278-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/3348-301-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4124-358-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4124-369-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4196-279-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4196-299-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4196-368-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download