gh0strat | 8ac26cd81ecbf2de9b41dd3f1ce37bc34b02ab8e9ed38b4f94dd3563cebc97cf

Analysis

max time kernel
130s
max time network
141s
platform
windows10-1703_x64
resource
win10-20220812-en
resource tags

arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
submitted
06/09/2022, 23:14

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General

Target

8ac26cd81ecbf2de9b41dd3f1ce37bc34b02ab8e9ed38b4f94dd3563cebc97cf.exe
Size

375KB
MD5

e79da00e5a155a737914cad3c45e443a
SHA1

a058698462f78128558de8f58bc3a14495142535
SHA256

8ac26cd81ecbf2de9b41dd3f1ce37bc34b02ab8e9ed38b4f94dd3563cebc97cf
SHA512

39f629929206bbebe0ccd2fcf905d1a944e9b7791010e36ab1022bf79090b934c8eb24aa6e22685b40d22b87eb4e72606f3f08c216f36ef35d4f62afa26fc6ea
SSDEEP

6144:5v5zQJVb5p72cHF1ybDFwekh212KhvwIb759QOaBjpaVRPu23E2rJmWjFc94:54VOiF1WD7kE1dTYOi8V5u23zmWFy4

Score

10^/10

gh0strat rat upx

Malware Config

Signatures

Gh0st RAT payload 8 IoCs

resource	yara_rule
behavioral1/memory/1816-174-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/1816-175-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/1816-176-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4488-261-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4816-301-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4572-359-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4816-371-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4572-373-0x0000000010000000-0x0000000010362000-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

pid	Process
4488	SQLSerasi.exe
4816	SQLSerasi.exe
4572	SQLSerasi.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1816-170-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/1816-174-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/1816-175-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/1816-176-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4488-261-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4816-301-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4572-359-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4816-371-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4572-373-0x0000000010000000-0x0000000010362000-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	8ac26cd81ecbf2de9b41dd3f1ce37bc34b02ab8e9ed38b4f94dd3563cebc97cf.exe
File opened for modification	C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe	8ac26cd81ecbf2de9b41dd3f1ce37bc34b02ab8e9ed38b4f94dd3563cebc97cf.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	1816	8ac26cd81ecbf2de9b41dd3f1ce37bc34b02ab8e9ed38b4f94dd3563cebc97cf.exe
Token: SeDebugPrivilege	4488	SQLSerasi.exe
Token: SeDebugPrivilege	4816	SQLSerasi.exe
Token: SeDebugPrivilege	4816	SQLSerasi.exe
Token: SeDebugPrivilege	4572	SQLSerasi.exe
Token: SeDebugPrivilege	4572	SQLSerasi.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1816 wrote to memory of 4488	1816	8ac26cd81ecbf2de9b41dd3f1ce37bc34b02ab8e9ed38b4f94dd3563cebc97cf.exe	66
PID 1816 wrote to memory of 4488	1816	8ac26cd81ecbf2de9b41dd3f1ce37bc34b02ab8e9ed38b4f94dd3563cebc97cf.exe	66
PID 1816 wrote to memory of 4488	1816	8ac26cd81ecbf2de9b41dd3f1ce37bc34b02ab8e9ed38b4f94dd3563cebc97cf.exe	66
PID 4816 wrote to memory of 4572	4816	SQLSerasi.exe	68
PID 4816 wrote to memory of 4572	4816	SQLSerasi.exe	68
PID 4816 wrote to memory of 4572	4816	SQLSerasi.exe	68

C:\Users\Admin\AppData\Local\Temp\8ac26cd81ecbf2de9b41dd3f1ce37bc34b02ab8e9ed38b4f94dd3563cebc97cf.exe
"C:\Users\Admin\AppData\Local\Temp\8ac26cd81ecbf2de9b41dd3f1ce37bc34b02ab8e9ed38b4f94dd3563cebc97cf.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1816
- 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:4488

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:4816
- 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:4572

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
6927fb320127f44943634493ad71e1c4

SHA1
7eefd48c095a944f20299c963ff28a7d0f0522be

SHA256
ca382c3ac1b29a056cbc43d2d5ed5e1dd68dd7a89bdf797912342430c18dde49

SHA512
c2e5f4457e807385bbc4a5aec78b7b055ff59d3ec25152c4ba434b07fae6e7f4dcf06414b7ebb81080227788cc1db2e6c54780ee5090d82b3a30e03232ae5db0

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

Filesize
39.4MB

MD5
6927fb320127f44943634493ad71e1c4

SHA1
7eefd48c095a944f20299c963ff28a7d0f0522be

SHA256
ca382c3ac1b29a056cbc43d2d5ed5e1dd68dd7a89bdf797912342430c18dde49

SHA512
c2e5f4457e807385bbc4a5aec78b7b055ff59d3ec25152c4ba434b07fae6e7f4dcf06414b7ebb81080227788cc1db2e6c54780ee5090d82b3a30e03232ae5db0

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

Filesize
39.4MB

MD5
6927fb320127f44943634493ad71e1c4

SHA1
7eefd48c095a944f20299c963ff28a7d0f0522be

SHA256
ca382c3ac1b29a056cbc43d2d5ed5e1dd68dd7a89bdf797912342430c18dde49

SHA512
c2e5f4457e807385bbc4a5aec78b7b055ff59d3ec25152c4ba434b07fae6e7f4dcf06414b7ebb81080227788cc1db2e6c54780ee5090d82b3a30e03232ae5db0

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

Filesize
39.4MB

MD5
6927fb320127f44943634493ad71e1c4

SHA1
7eefd48c095a944f20299c963ff28a7d0f0522be

SHA256
ca382c3ac1b29a056cbc43d2d5ed5e1dd68dd7a89bdf797912342430c18dde49

SHA512
c2e5f4457e807385bbc4a5aec78b7b055ff59d3ec25152c4ba434b07fae6e7f4dcf06414b7ebb81080227788cc1db2e6c54780ee5090d82b3a30e03232ae5db0

Download Submit
memory/1816-154-0x0000000077D10000-0x0000000077E9E000-memory.dmp

Filesize
1.6MB

Download
memory/1816-158-0x0000000077D10000-0x0000000077E9E000-memory.dmp

Filesize
1.6MB

Download
memory/1816-121-0x0000000077D10000-0x0000000077E9E000-memory.dmp

Filesize
1.6MB

Download
memory/1816-123-0x0000000077D10000-0x0000000077E9E000-memory.dmp

Filesize
1.6MB

Download
memory/1816-124-0x0000000077D10000-0x0000000077E9E000-memory.dmp

Filesize
1.6MB

Download
memory/1816-125-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/1816-126-0x0000000077D10000-0x0000000077E9E000-memory.dmp

Filesize
1.6MB

Download
memory/1816-127-0x0000000077D10000-0x0000000077E9E000-memory.dmp

Filesize
1.6MB

Download
memory/1816-128-0x0000000077D10000-0x0000000077E9E000-memory.dmp

Filesize
1.6MB

Download
memory/1816-129-0x0000000077D10000-0x0000000077E9E000-memory.dmp

Filesize
1.6MB

Download
memory/1816-130-0x0000000077D10000-0x0000000077E9E000-memory.dmp

Filesize
1.6MB

Download
memory/1816-131-0x0000000077D10000-0x0000000077E9E000-memory.dmp

Filesize
1.6MB

Download
memory/1816-132-0x0000000077D10000-0x0000000077E9E000-memory.dmp

Filesize
1.6MB

Download
memory/1816-133-0x0000000077D10000-0x0000000077E9E000-memory.dmp

Filesize
1.6MB

Download
memory/1816-134-0x0000000077D10000-0x0000000077E9E000-memory.dmp

Filesize
1.6MB

Download
memory/1816-135-0x0000000077D10000-0x0000000077E9E000-memory.dmp

Filesize
1.6MB

Download
memory/1816-136-0x0000000077D10000-0x0000000077E9E000-memory.dmp

Filesize
1.6MB

Download
memory/1816-137-0x0000000077D10000-0x0000000077E9E000-memory.dmp

Filesize
1.6MB

Download
memory/1816-138-0x0000000077D10000-0x0000000077E9E000-memory.dmp

Filesize
1.6MB

Download
memory/1816-139-0x0000000077D10000-0x0000000077E9E000-memory.dmp

Filesize
1.6MB

Download
memory/1816-141-0x0000000077D10000-0x0000000077E9E000-memory.dmp

Filesize
1.6MB

Download
memory/1816-142-0x0000000077D10000-0x0000000077E9E000-memory.dmp

Filesize
1.6MB

Download
memory/1816-140-0x0000000077D10000-0x0000000077E9E000-memory.dmp

Filesize
1.6MB

Download
memory/1816-143-0x0000000077D10000-0x0000000077E9E000-memory.dmp

Filesize
1.6MB

Download
memory/1816-144-0x0000000077D10000-0x0000000077E9E000-memory.dmp

Filesize
1.6MB

Download
memory/1816-145-0x0000000077D10000-0x0000000077E9E000-memory.dmp

Filesize
1.6MB

Download
memory/1816-146-0x0000000077D10000-0x0000000077E9E000-memory.dmp

Filesize
1.6MB

Download
memory/1816-157-0x0000000077D10000-0x0000000077E9E000-memory.dmp

Filesize
1.6MB

Download
memory/1816-148-0x0000000077D10000-0x0000000077E9E000-memory.dmp

Filesize
1.6MB

Download
memory/1816-149-0x0000000077D10000-0x0000000077E9E000-memory.dmp

Filesize
1.6MB

Download
memory/1816-150-0x0000000077D10000-0x0000000077E9E000-memory.dmp

Filesize
1.6MB

Download
memory/1816-151-0x0000000077D10000-0x0000000077E9E000-memory.dmp

Filesize
1.6MB

Download
memory/1816-152-0x0000000077D10000-0x0000000077E9E000-memory.dmp

Filesize
1.6MB

Download
memory/1816-153-0x0000000077D10000-0x0000000077E9E000-memory.dmp

Filesize
1.6MB

Download
memory/1816-120-0x0000000077D10000-0x0000000077E9E000-memory.dmp

Filesize
1.6MB

Download
memory/1816-155-0x0000000077D10000-0x0000000077E9E000-memory.dmp

Filesize
1.6MB

Download
memory/1816-122-0x0000000077D10000-0x0000000077E9E000-memory.dmp

Filesize
1.6MB

Download
memory/1816-156-0x0000000077D10000-0x0000000077E9E000-memory.dmp

Filesize
1.6MB

Download
memory/1816-147-0x0000000077D10000-0x0000000077E9E000-memory.dmp

Filesize
1.6MB

Download
memory/1816-159-0x0000000077D10000-0x0000000077E9E000-memory.dmp

Filesize
1.6MB

Download
memory/1816-160-0x0000000077D10000-0x0000000077E9E000-memory.dmp

Filesize
1.6MB

Download
memory/1816-161-0x0000000077D10000-0x0000000077E9E000-memory.dmp

Filesize
1.6MB

Download
memory/1816-162-0x0000000077D10000-0x0000000077E9E000-memory.dmp

Filesize
1.6MB

Download
memory/1816-163-0x0000000077D10000-0x0000000077E9E000-memory.dmp

Filesize
1.6MB

Download
memory/1816-164-0x0000000077D10000-0x0000000077E9E000-memory.dmp

Filesize
1.6MB

Download
memory/1816-165-0x0000000077D10000-0x0000000077E9E000-memory.dmp

Filesize
1.6MB

Download
memory/1816-166-0x0000000077D10000-0x0000000077E9E000-memory.dmp

Filesize
1.6MB

Download
memory/1816-167-0x0000000077D10000-0x0000000077E9E000-memory.dmp

Filesize
1.6MB

Download
memory/1816-168-0x0000000077D10000-0x0000000077E9E000-memory.dmp

Filesize
1.6MB

Download
memory/1816-169-0x0000000077D10000-0x0000000077E9E000-memory.dmp

Filesize
1.6MB

Download
memory/1816-170-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/1816-173-0x0000000077D10000-0x0000000077E9E000-memory.dmp

Filesize
1.6MB

Download
memory/1816-174-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/1816-175-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/1816-176-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/1816-177-0x0000000077D10000-0x0000000077E9E000-memory.dmp

Filesize
1.6MB

Download
memory/1816-178-0x0000000077D10000-0x0000000077E9E000-memory.dmp

Filesize
1.6MB

Download
memory/1816-179-0x0000000077D10000-0x0000000077E9E000-memory.dmp

Filesize
1.6MB

Download
memory/1816-180-0x0000000077D10000-0x0000000077E9E000-memory.dmp

Filesize
1.6MB

Download
memory/1816-181-0x0000000077D10000-0x0000000077E9E000-memory.dmp

Filesize
1.6MB

Download
memory/1816-182-0x0000000077D10000-0x0000000077E9E000-memory.dmp

Filesize
1.6MB

Download
memory/1816-183-0x0000000077D10000-0x0000000077E9E000-memory.dmp

Filesize
1.6MB

Download
memory/1816-184-0x0000000077D10000-0x0000000077E9E000-memory.dmp

Filesize
1.6MB

Download
memory/1816-185-0x0000000077D10000-0x0000000077E9E000-memory.dmp

Filesize
1.6MB

Download
memory/1816-196-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4488-261-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4488-302-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4572-359-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4572-372-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4572-373-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4816-301-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4816-370-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4816-371-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download