gh0strat | 5a4a7dd89a1dd606be1274ed8ac376f0c386b2010363134af29b1e856537c287

Analysis

max time kernel
149s
max time network
147s
platform
windows10-1703_x64
resource
win10-20220812-en
resource tags

arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
submitted
25/09/2022, 15:20

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General

Target

5a4a7dd89a1dd606be1274ed8ac376f0c386b2010363134af29b1e856537c287.exe
Size

375KB
MD5

494f19f306f097359689bde71df99249
SHA1

4549d8e0639e480feec4406bc5df9b8ee87a535a
SHA256

5a4a7dd89a1dd606be1274ed8ac376f0c386b2010363134af29b1e856537c287
SHA512

be2fe12c83809931bff65b15b5e22221529d6fe4fc15b590875c9ffa432d39beecc9b3522cc0526144b2fee255490c50b7f28d60eff7343f52df2b1ebefdedb0
SSDEEP

6144:9v5zQJVb5p72cHF1ybDFwekh212KhvwIb759QOaBjpaVRPu23E2rJmWjFc94:94VOiF1WD7kE1dTYOi8V5u23zmWFy4

Score

10^/10

gh0strat rat upx

Malware Config

Signatures

Gh0st RAT payload 10 IoCs

resource	yara_rule
behavioral1/memory/2700-170-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/2700-171-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/2700-172-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/2700-175-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/5092-242-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/5092-268-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/1688-299-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4732-357-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/1688-369-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4732-371-0x0000000010000000-0x0000000010362000-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
5092	SQLSerasi.exe
1688	SQLSerasi.exe
4732	SQLSerasi.exe

UPX packed file 11 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2700-166-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/2700-170-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/2700-171-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/2700-172-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/2700-175-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/5092-242-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/5092-268-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/1688-299-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4732-357-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/1688-369-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4732-371-0x0000000010000000-0x0000000010362000-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	5a4a7dd89a1dd606be1274ed8ac376f0c386b2010363134af29b1e856537c287.exe
File opened for modification	C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe	5a4a7dd89a1dd606be1274ed8ac376f0c386b2010363134af29b1e856537c287.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
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	2700	5a4a7dd89a1dd606be1274ed8ac376f0c386b2010363134af29b1e856537c287.exe
Token: SeDebugPrivilege	5092	SQLSerasi.exe
Token: SeDebugPrivilege	1688	SQLSerasi.exe
Token: SeDebugPrivilege	1688	SQLSerasi.exe
Token: SeDebugPrivilege	4732	SQLSerasi.exe
Token: SeDebugPrivilege	4732	SQLSerasi.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2700 wrote to memory of 5092	2700	5a4a7dd89a1dd606be1274ed8ac376f0c386b2010363134af29b1e856537c287.exe	66
PID 2700 wrote to memory of 5092	2700	5a4a7dd89a1dd606be1274ed8ac376f0c386b2010363134af29b1e856537c287.exe	66
PID 2700 wrote to memory of 5092	2700	5a4a7dd89a1dd606be1274ed8ac376f0c386b2010363134af29b1e856537c287.exe	66
PID 1688 wrote to memory of 4732	1688	SQLSerasi.exe	68
PID 1688 wrote to memory of 4732	1688	SQLSerasi.exe	68
PID 1688 wrote to memory of 4732	1688	SQLSerasi.exe	68

C:\Users\Admin\AppData\Local\Temp\5a4a7dd89a1dd606be1274ed8ac376f0c386b2010363134af29b1e856537c287.exe
"C:\Users\Admin\AppData\Local\Temp\5a4a7dd89a1dd606be1274ed8ac376f0c386b2010363134af29b1e856537c287.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2700
- 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:5092

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:1688
- 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:4732

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
c2969d3e3563136ae61eb7ba6dc4dff9

SHA1
d89fad7c11a6cff9306659515c41036f3b3fe4fd

SHA256
36f075da717baf6e3698e42c53a94aabb04e6faf4707a6941d7f8d6bacb2d3db

SHA512
c1a5952400575efcee8e42a1c2a183a6dbb2cb7bf5eb41462fc5166c3ea191ff9a4ac17a46d46715fa1615f11951be81d3cd8c7520be36f74475a2c040120951

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

Filesize
39.4MB

MD5
c2969d3e3563136ae61eb7ba6dc4dff9

SHA1
d89fad7c11a6cff9306659515c41036f3b3fe4fd

SHA256
36f075da717baf6e3698e42c53a94aabb04e6faf4707a6941d7f8d6bacb2d3db

SHA512
c1a5952400575efcee8e42a1c2a183a6dbb2cb7bf5eb41462fc5166c3ea191ff9a4ac17a46d46715fa1615f11951be81d3cd8c7520be36f74475a2c040120951

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

Filesize
39.4MB

MD5
c2969d3e3563136ae61eb7ba6dc4dff9

SHA1
d89fad7c11a6cff9306659515c41036f3b3fe4fd

SHA256
36f075da717baf6e3698e42c53a94aabb04e6faf4707a6941d7f8d6bacb2d3db

SHA512
c1a5952400575efcee8e42a1c2a183a6dbb2cb7bf5eb41462fc5166c3ea191ff9a4ac17a46d46715fa1615f11951be81d3cd8c7520be36f74475a2c040120951

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

Filesize
39.4MB

MD5
c2969d3e3563136ae61eb7ba6dc4dff9

SHA1
d89fad7c11a6cff9306659515c41036f3b3fe4fd

SHA256
36f075da717baf6e3698e42c53a94aabb04e6faf4707a6941d7f8d6bacb2d3db

SHA512
c1a5952400575efcee8e42a1c2a183a6dbb2cb7bf5eb41462fc5166c3ea191ff9a4ac17a46d46715fa1615f11951be81d3cd8c7520be36f74475a2c040120951

Download Submit
memory/1688-299-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/1688-369-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/1688-368-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/2700-151-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-164-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-120-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-121-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-122-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-123-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-124-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-125-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-127-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/2700-126-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-154-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-128-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-130-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-131-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-132-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-133-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-134-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-135-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-136-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-137-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-138-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-140-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-141-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-142-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-143-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-144-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-139-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-145-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-146-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-147-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-148-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-149-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-150-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-118-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-156-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-153-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-129-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-119-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-152-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-157-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-158-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-159-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-160-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-161-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-162-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-163-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-155-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-166-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/2700-165-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-169-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-170-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/2700-171-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/2700-172-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/2700-173-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-174-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-175-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/2700-176-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-177-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-178-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-179-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-180-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-181-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-182-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-190-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/2700-116-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-117-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/4732-357-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4732-370-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4732-371-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/5092-242-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/5092-268-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/5092-301-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download