gh0strat | cd40a3d1460ec41911441f6f4b737bce89fe33b4613ae882de5e3379510ad81c

Analysis

max time kernel
145s
max time network
146s
platform
windows10-1703_x64
resource
win10-20220812-en
resource tags

arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
submitted
14-09-2022 12:09

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General

Target

cd40a3d1460ec41911441f6f4b737bce89fe33b4613ae882de5e3379510ad81c.exe
Size

375KB
MD5

f8c094f5e5803c123e4cbf7fcbb78b64
SHA1

6acae9c372c60f4ebb3206bd1f2ddeb60675d8f0
SHA256

cd40a3d1460ec41911441f6f4b737bce89fe33b4613ae882de5e3379510ad81c
SHA512

c0ad989896a40a39c1f42b7bafa7cf90a83de092e8718901b3deb1ac35bfa647cf1a3f85b6fd4fc31ff685fb8eb1636d7b2ee69ad832ac545499c534a4feb36a
SSDEEP

6144:Nv5zQJVb5p72cHF1ybDFwekh212KhvwIb759QOaBjpaVRPu23E2rJmWjFc94:N4VOiF1WD7kE1dTYOi8V5u23zmWFy4

Score

10^/10

gh0strat rat upx

Malware Config

Signatures

Gh0st RAT payload 10 IoCs

resource	yara_rule
behavioral1/memory/2668-170-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/2668-171-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/2668-172-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/2668-173-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4812-264-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4340-298-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4340-299-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/3980-357-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/3980-365-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4340-370-0x0000000010000000-0x0000000010362000-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
4812	SQLSerasi.exe
4340	SQLSerasi.exe
3980	SQLSerasi.exe

UPX packed file 11 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2668-166-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/2668-170-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/2668-171-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/2668-172-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/2668-173-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4812-264-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4340-298-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4340-299-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/3980-357-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/3980-365-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4340-370-0x0000000010000000-0x0000000010362000-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\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
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5	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	cd40a3d1460ec41911441f6f4b737bce89fe33b4613ae882de5e3379510ad81c.exe
File created	C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe	cd40a3d1460ec41911441f6f4b737bce89fe33b4613ae882de5e3379510ad81c.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	2668	cd40a3d1460ec41911441f6f4b737bce89fe33b4613ae882de5e3379510ad81c.exe
Token: SeDebugPrivilege	4812	SQLSerasi.exe
Token: SeDebugPrivilege	4340	SQLSerasi.exe
Token: SeDebugPrivilege	4340	SQLSerasi.exe
Token: SeDebugPrivilege	3980	SQLSerasi.exe
Token: SeDebugPrivilege	3980	SQLSerasi.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2668 wrote to memory of 4812	2668	cd40a3d1460ec41911441f6f4b737bce89fe33b4613ae882de5e3379510ad81c.exe	66
PID 2668 wrote to memory of 4812	2668	cd40a3d1460ec41911441f6f4b737bce89fe33b4613ae882de5e3379510ad81c.exe	66
PID 2668 wrote to memory of 4812	2668	cd40a3d1460ec41911441f6f4b737bce89fe33b4613ae882de5e3379510ad81c.exe	66
PID 4340 wrote to memory of 3980	4340	SQLSerasi.exe	68
PID 4340 wrote to memory of 3980	4340	SQLSerasi.exe	68
PID 4340 wrote to memory of 3980	4340	SQLSerasi.exe	68

C:\Users\Admin\AppData\Local\Temp\cd40a3d1460ec41911441f6f4b737bce89fe33b4613ae882de5e3379510ad81c.exe
"C:\Users\Admin\AppData\Local\Temp\cd40a3d1460ec41911441f6f4b737bce89fe33b4613ae882de5e3379510ad81c.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2668
- 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:4812

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:4340
- 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:3980

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
6d4f11c82e2e2dc90d1ab6afbea0f9ab

SHA1
9519302154d018c2859c8740bf5867999806d636

SHA256
f68ec685c4bcf97a0c71d09e446ac0b69df23b15bac8ce88db921a3444b8ae10

SHA512
116bfd077acda017055a961ad9b33899fed4249ec93269cf660f5a8058f532961062b167871f9894d55ca69c69f90b401a4fa6af70fa2f6cb40957c584a2a997

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

Filesize
39.4MB

MD5
6d4f11c82e2e2dc90d1ab6afbea0f9ab

SHA1
9519302154d018c2859c8740bf5867999806d636

SHA256
f68ec685c4bcf97a0c71d09e446ac0b69df23b15bac8ce88db921a3444b8ae10

SHA512
116bfd077acda017055a961ad9b33899fed4249ec93269cf660f5a8058f532961062b167871f9894d55ca69c69f90b401a4fa6af70fa2f6cb40957c584a2a997

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

Filesize
39.4MB

MD5
6d4f11c82e2e2dc90d1ab6afbea0f9ab

SHA1
9519302154d018c2859c8740bf5867999806d636

SHA256
f68ec685c4bcf97a0c71d09e446ac0b69df23b15bac8ce88db921a3444b8ae10

SHA512
116bfd077acda017055a961ad9b33899fed4249ec93269cf660f5a8058f532961062b167871f9894d55ca69c69f90b401a4fa6af70fa2f6cb40957c584a2a997

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

Filesize
39.4MB

MD5
6d4f11c82e2e2dc90d1ab6afbea0f9ab

SHA1
9519302154d018c2859c8740bf5867999806d636

SHA256
f68ec685c4bcf97a0c71d09e446ac0b69df23b15bac8ce88db921a3444b8ae10

SHA512
116bfd077acda017055a961ad9b33899fed4249ec93269cf660f5a8058f532961062b167871f9894d55ca69c69f90b401a4fa6af70fa2f6cb40957c584a2a997

Download Submit
memory/2668-153-0x00000000779A0000-0x0000000077B2E000-memory.dmp

Filesize
1.6MB

Download
memory/2668-177-0x00000000779A0000-0x0000000077B2E000-memory.dmp

Filesize
1.6MB

Download
memory/2668-119-0x00000000779A0000-0x0000000077B2E000-memory.dmp

Filesize
1.6MB

Download
memory/2668-120-0x00000000779A0000-0x0000000077B2E000-memory.dmp

Filesize
1.6MB

Download
memory/2668-121-0x00000000779A0000-0x0000000077B2E000-memory.dmp

Filesize
1.6MB

Download
memory/2668-122-0x00000000779A0000-0x0000000077B2E000-memory.dmp

Filesize
1.6MB

Download
memory/2668-123-0x00000000779A0000-0x0000000077B2E000-memory.dmp

Filesize
1.6MB

Download
memory/2668-124-0x00000000779A0000-0x0000000077B2E000-memory.dmp

Filesize
1.6MB

Download
memory/2668-125-0x00000000779A0000-0x0000000077B2E000-memory.dmp

Filesize
1.6MB

Download
memory/2668-126-0x00000000779A0000-0x0000000077B2E000-memory.dmp

Filesize
1.6MB

Download
memory/2668-127-0x00000000779A0000-0x0000000077B2E000-memory.dmp

Filesize
1.6MB

Download
memory/2668-128-0x00000000779A0000-0x0000000077B2E000-memory.dmp

Filesize
1.6MB

Download
memory/2668-129-0x00000000779A0000-0x0000000077B2E000-memory.dmp

Filesize
1.6MB

Download
memory/2668-130-0x00000000779A0000-0x0000000077B2E000-memory.dmp

Filesize
1.6MB

Download
memory/2668-132-0x00000000779A0000-0x0000000077B2E000-memory.dmp

Filesize
1.6MB

Download
memory/2668-133-0x00000000779A0000-0x0000000077B2E000-memory.dmp

Filesize
1.6MB

Download
memory/2668-134-0x00000000779A0000-0x0000000077B2E000-memory.dmp

Filesize
1.6MB

Download
memory/2668-135-0x00000000779A0000-0x0000000077B2E000-memory.dmp

Filesize
1.6MB

Download
memory/2668-137-0x00000000779A0000-0x0000000077B2E000-memory.dmp

Filesize
1.6MB

Download
memory/2668-138-0x00000000779A0000-0x0000000077B2E000-memory.dmp

Filesize
1.6MB

Download
memory/2668-139-0x00000000779A0000-0x0000000077B2E000-memory.dmp

Filesize
1.6MB

Download
memory/2668-141-0x00000000779A0000-0x0000000077B2E000-memory.dmp

Filesize
1.6MB

Download
memory/2668-142-0x00000000779A0000-0x0000000077B2E000-memory.dmp

Filesize
1.6MB

Download
memory/2668-140-0x00000000779A0000-0x0000000077B2E000-memory.dmp

Filesize
1.6MB

Download
memory/2668-136-0x00000000779A0000-0x0000000077B2E000-memory.dmp

Filesize
1.6MB

Download
memory/2668-157-0x00000000779A0000-0x0000000077B2E000-memory.dmp

Filesize
1.6MB

Download
memory/2668-143-0x00000000779A0000-0x0000000077B2E000-memory.dmp

Filesize
1.6MB

Download
memory/2668-144-0x00000000779A0000-0x0000000077B2E000-memory.dmp

Filesize
1.6MB

Download
memory/2668-145-0x00000000779A0000-0x0000000077B2E000-memory.dmp

Filesize
1.6MB

Download
memory/2668-146-0x00000000779A0000-0x0000000077B2E000-memory.dmp

Filesize
1.6MB

Download
memory/2668-147-0x00000000779A0000-0x0000000077B2E000-memory.dmp

Filesize
1.6MB

Download
memory/2668-148-0x00000000779A0000-0x0000000077B2E000-memory.dmp

Filesize
1.6MB

Download
memory/2668-149-0x00000000779A0000-0x0000000077B2E000-memory.dmp

Filesize
1.6MB

Download
memory/2668-150-0x00000000779A0000-0x0000000077B2E000-memory.dmp

Filesize
1.6MB

Download
memory/2668-151-0x00000000779A0000-0x0000000077B2E000-memory.dmp

Filesize
1.6MB

Download
memory/2668-152-0x00000000779A0000-0x0000000077B2E000-memory.dmp

Filesize
1.6MB

Download
memory/2668-117-0x00000000779A0000-0x0000000077B2E000-memory.dmp

Filesize
1.6MB

Download
memory/2668-154-0x00000000779A0000-0x0000000077B2E000-memory.dmp

Filesize
1.6MB

Download
memory/2668-155-0x00000000779A0000-0x0000000077B2E000-memory.dmp

Filesize
1.6MB

Download
memory/2668-116-0x00000000779A0000-0x0000000077B2E000-memory.dmp

Filesize
1.6MB

Download
memory/2668-131-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/2668-158-0x00000000779A0000-0x0000000077B2E000-memory.dmp

Filesize
1.6MB

Download
memory/2668-159-0x00000000779A0000-0x0000000077B2E000-memory.dmp

Filesize
1.6MB

Download
memory/2668-160-0x00000000779A0000-0x0000000077B2E000-memory.dmp

Filesize
1.6MB

Download
memory/2668-161-0x00000000779A0000-0x0000000077B2E000-memory.dmp

Filesize
1.6MB

Download
memory/2668-162-0x00000000779A0000-0x0000000077B2E000-memory.dmp

Filesize
1.6MB

Download
memory/2668-163-0x00000000779A0000-0x0000000077B2E000-memory.dmp

Filesize
1.6MB

Download
memory/2668-164-0x00000000779A0000-0x0000000077B2E000-memory.dmp

Filesize
1.6MB

Download
memory/2668-165-0x00000000779A0000-0x0000000077B2E000-memory.dmp

Filesize
1.6MB

Download
memory/2668-166-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/2668-169-0x00000000779A0000-0x0000000077B2E000-memory.dmp

Filesize
1.6MB

Download
memory/2668-170-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/2668-171-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/2668-172-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/2668-173-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/2668-174-0x00000000779A0000-0x0000000077B2E000-memory.dmp

Filesize
1.6MB

Download
memory/2668-175-0x00000000779A0000-0x0000000077B2E000-memory.dmp

Filesize
1.6MB

Download
memory/2668-176-0x00000000779A0000-0x0000000077B2E000-memory.dmp

Filesize
1.6MB

Download
memory/2668-118-0x00000000779A0000-0x0000000077B2E000-memory.dmp

Filesize
1.6MB

Download
memory/2668-178-0x00000000779A0000-0x0000000077B2E000-memory.dmp

Filesize
1.6MB

Download
memory/2668-179-0x00000000779A0000-0x0000000077B2E000-memory.dmp

Filesize
1.6MB

Download
memory/2668-180-0x00000000779A0000-0x0000000077B2E000-memory.dmp

Filesize
1.6MB

Download
memory/2668-181-0x00000000779A0000-0x0000000077B2E000-memory.dmp

Filesize
1.6MB

Download
memory/2668-182-0x00000000779A0000-0x0000000077B2E000-memory.dmp

Filesize
1.6MB

Download
memory/2668-189-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/2668-156-0x00000000779A0000-0x0000000077B2E000-memory.dmp

Filesize
1.6MB

Download
memory/3980-301-0x0000000000000000-mapping.dmp

Download
memory/3980-357-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/3980-365-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/3980-371-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4340-299-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4340-298-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4340-369-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4340-370-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4812-185-0x0000000000000000-mapping.dmp

Download
memory/4812-264-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4812-302-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download