gh0strat | a0bc2143fde7de598380668d4b404ff72f5b55ec73026c8ca656d1111d1a9ae9

Analysis

max time kernel
133s
max time network
144s
platform
windows10-1703_x64
resource
win10-20220812-en
resource tags

arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
submitted
05-10-2022 14:31

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General

Target

a0bc2143fde7de598380668d4b404ff72f5b55ec73026c8ca656d1111d1a9ae9.exe
Size

375KB
MD5

4365a11517b5d55f07361db455b42c12
SHA1

b66f675c5b181f91292ea8168acf236e299dab21
SHA256

a0bc2143fde7de598380668d4b404ff72f5b55ec73026c8ca656d1111d1a9ae9
SHA512

e5846ed669efb96ec5c2bd75633f52b9594467ec7ce5eda36b14c77cdc8edb440a256fdd38d841e66594c45f8b7c9af47da6b5981e8c03549e07989ec3ea2ae7
SSDEEP

6144:Rv5zQJVb5p72cHF1ybDFwekh212KhvwIb759QOaBjpaVRPu23E2rJmWjFc94:R4VOiF1WD7kE1dTYOi8V5u23zmWFy4

Score

10^/10

gh0strat rat upx

Malware Config

Signatures

Gh0st RAT payload 7 IoCs

resource	yara_rule
behavioral1/memory/2580-174-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/2580-175-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/2580-178-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/772-252-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4908-303-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4908-306-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4216-362-0x0000000010000000-0x0000000010362000-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
772	SQLSerasi.exe
4908	SQLSerasi.exe
4216	SQLSerasi.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2580-170-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/2580-174-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/2580-175-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/2580-178-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/772-252-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4908-303-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4908-306-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4216-362-0x0000000010000000-0x0000000010362000-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\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
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

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe	a0bc2143fde7de598380668d4b404ff72f5b55ec73026c8ca656d1111d1a9ae9.exe
File opened for modification	C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe	a0bc2143fde7de598380668d4b404ff72f5b55ec73026c8ca656d1111d1a9ae9.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	2580	a0bc2143fde7de598380668d4b404ff72f5b55ec73026c8ca656d1111d1a9ae9.exe
Token: SeDebugPrivilege	772	SQLSerasi.exe
Token: SeDebugPrivilege	4908	SQLSerasi.exe
Token: SeDebugPrivilege	4908	SQLSerasi.exe
Token: SeDebugPrivilege	4216	SQLSerasi.exe
Token: SeDebugPrivilege	4216	SQLSerasi.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2580 wrote to memory of 772	2580	a0bc2143fde7de598380668d4b404ff72f5b55ec73026c8ca656d1111d1a9ae9.exe	66
PID 2580 wrote to memory of 772	2580	a0bc2143fde7de598380668d4b404ff72f5b55ec73026c8ca656d1111d1a9ae9.exe	66
PID 2580 wrote to memory of 772	2580	a0bc2143fde7de598380668d4b404ff72f5b55ec73026c8ca656d1111d1a9ae9.exe	66
PID 4908 wrote to memory of 4216	4908	SQLSerasi.exe	68
PID 4908 wrote to memory of 4216	4908	SQLSerasi.exe	68
PID 4908 wrote to memory of 4216	4908	SQLSerasi.exe	68

C:\Users\Admin\AppData\Local\Temp\a0bc2143fde7de598380668d4b404ff72f5b55ec73026c8ca656d1111d1a9ae9.exe
"C:\Users\Admin\AppData\Local\Temp\a0bc2143fde7de598380668d4b404ff72f5b55ec73026c8ca656d1111d1a9ae9.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2580
- 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:772

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:4908
- 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:4216

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
5c7b625f01ea91a6a0c17f2cae358bd4

SHA1
ac72ea702d7e8033bbb52a0aa73aa2d975f7da60

SHA256
9e84f554edc26d77b73a452f1a2df34a081fd43d4626c5a1a3559172b8ddc22c

SHA512
dcbd5ef82ccf339380d96d6ebb26df776840954b7ca6f4ff1693b16244fd353d9bb3f121c57f82558785d36b124d7b63e6241636aca03177cf490e3d958ef083

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

Filesize
39.4MB

MD5
5c7b625f01ea91a6a0c17f2cae358bd4

SHA1
ac72ea702d7e8033bbb52a0aa73aa2d975f7da60

SHA256
9e84f554edc26d77b73a452f1a2df34a081fd43d4626c5a1a3559172b8ddc22c

SHA512
dcbd5ef82ccf339380d96d6ebb26df776840954b7ca6f4ff1693b16244fd353d9bb3f121c57f82558785d36b124d7b63e6241636aca03177cf490e3d958ef083

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

Filesize
39.4MB

MD5
5c7b625f01ea91a6a0c17f2cae358bd4

SHA1
ac72ea702d7e8033bbb52a0aa73aa2d975f7da60

SHA256
9e84f554edc26d77b73a452f1a2df34a081fd43d4626c5a1a3559172b8ddc22c

SHA512
dcbd5ef82ccf339380d96d6ebb26df776840954b7ca6f4ff1693b16244fd353d9bb3f121c57f82558785d36b124d7b63e6241636aca03177cf490e3d958ef083

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

Filesize
39.4MB

MD5
5c7b625f01ea91a6a0c17f2cae358bd4

SHA1
ac72ea702d7e8033bbb52a0aa73aa2d975f7da60

SHA256
9e84f554edc26d77b73a452f1a2df34a081fd43d4626c5a1a3559172b8ddc22c

SHA512
dcbd5ef82ccf339380d96d6ebb26df776840954b7ca6f4ff1693b16244fd353d9bb3f121c57f82558785d36b124d7b63e6241636aca03177cf490e3d958ef083

Download Submit
memory/772-189-0x0000000000000000-mapping.dmp

Download
memory/772-252-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/772-302-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/2580-153-0x0000000077710000-0x000000007789E000-memory.dmp

Filesize
1.6MB

Download
memory/2580-127-0x0000000077710000-0x000000007789E000-memory.dmp

Filesize
1.6MB

Download
memory/2580-124-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/2580-125-0x0000000077710000-0x000000007789E000-memory.dmp

Filesize
1.6MB

Download
memory/2580-156-0x0000000077710000-0x000000007789E000-memory.dmp

Filesize
1.6MB

Download
memory/2580-157-0x0000000077710000-0x000000007789E000-memory.dmp

Filesize
1.6MB

Download
memory/2580-128-0x0000000077710000-0x000000007789E000-memory.dmp

Filesize
1.6MB

Download
memory/2580-129-0x0000000077710000-0x000000007789E000-memory.dmp

Filesize
1.6MB

Download
memory/2580-130-0x0000000077710000-0x000000007789E000-memory.dmp

Filesize
1.6MB

Download
memory/2580-131-0x0000000077710000-0x000000007789E000-memory.dmp

Filesize
1.6MB

Download
memory/2580-132-0x0000000077710000-0x000000007789E000-memory.dmp

Filesize
1.6MB

Download
memory/2580-133-0x0000000077710000-0x000000007789E000-memory.dmp

Filesize
1.6MB

Download
memory/2580-134-0x0000000077710000-0x000000007789E000-memory.dmp

Filesize
1.6MB

Download
memory/2580-135-0x0000000077710000-0x000000007789E000-memory.dmp

Filesize
1.6MB

Download
memory/2580-136-0x0000000077710000-0x000000007789E000-memory.dmp

Filesize
1.6MB

Download
memory/2580-137-0x0000000077710000-0x000000007789E000-memory.dmp

Filesize
1.6MB

Download
memory/2580-138-0x0000000077710000-0x000000007789E000-memory.dmp

Filesize
1.6MB

Download
memory/2580-140-0x0000000077710000-0x000000007789E000-memory.dmp

Filesize
1.6MB

Download
memory/2580-141-0x0000000077710000-0x000000007789E000-memory.dmp

Filesize
1.6MB

Download
memory/2580-142-0x0000000077710000-0x000000007789E000-memory.dmp

Filesize
1.6MB

Download
memory/2580-143-0x0000000077710000-0x000000007789E000-memory.dmp

Filesize
1.6MB

Download
memory/2580-139-0x0000000077710000-0x000000007789E000-memory.dmp

Filesize
1.6MB

Download
memory/2580-144-0x0000000077710000-0x000000007789E000-memory.dmp

Filesize
1.6MB

Download
memory/2580-145-0x0000000077710000-0x000000007789E000-memory.dmp

Filesize
1.6MB

Download
memory/2580-146-0x0000000077710000-0x000000007789E000-memory.dmp

Filesize
1.6MB

Download
memory/2580-147-0x0000000077710000-0x000000007789E000-memory.dmp

Filesize
1.6MB

Download
memory/2580-148-0x0000000077710000-0x000000007789E000-memory.dmp

Filesize
1.6MB

Download
memory/2580-149-0x0000000077710000-0x000000007789E000-memory.dmp

Filesize
1.6MB

Download
memory/2580-150-0x0000000077710000-0x000000007789E000-memory.dmp

Filesize
1.6MB

Download
memory/2580-151-0x0000000077710000-0x000000007789E000-memory.dmp

Filesize
1.6MB

Download
memory/2580-152-0x0000000077710000-0x000000007789E000-memory.dmp

Filesize
1.6MB

Download
memory/2580-122-0x0000000077710000-0x000000007789E000-memory.dmp

Filesize
1.6MB

Download
memory/2580-154-0x0000000077710000-0x000000007789E000-memory.dmp

Filesize
1.6MB

Download
memory/2580-155-0x0000000077710000-0x000000007789E000-memory.dmp

Filesize
1.6MB

Download
memory/2580-158-0x0000000077710000-0x000000007789E000-memory.dmp

Filesize
1.6MB

Download
memory/2580-123-0x0000000077710000-0x000000007789E000-memory.dmp

Filesize
1.6MB

Download
memory/2580-126-0x0000000077710000-0x000000007789E000-memory.dmp

Filesize
1.6MB

Download
memory/2580-160-0x0000000077710000-0x000000007789E000-memory.dmp

Filesize
1.6MB

Download
memory/2580-159-0x0000000077710000-0x000000007789E000-memory.dmp

Filesize
1.6MB

Download
memory/2580-161-0x0000000077710000-0x000000007789E000-memory.dmp

Filesize
1.6MB

Download
memory/2580-162-0x0000000077710000-0x000000007789E000-memory.dmp

Filesize
1.6MB

Download
memory/2580-163-0x0000000077710000-0x000000007789E000-memory.dmp

Filesize
1.6MB

Download
memory/2580-164-0x0000000077710000-0x000000007789E000-memory.dmp

Filesize
1.6MB

Download
memory/2580-165-0x0000000077710000-0x000000007789E000-memory.dmp

Filesize
1.6MB

Download
memory/2580-166-0x0000000077710000-0x000000007789E000-memory.dmp

Filesize
1.6MB

Download
memory/2580-168-0x0000000077710000-0x000000007789E000-memory.dmp

Filesize
1.6MB

Download
memory/2580-167-0x0000000077710000-0x000000007789E000-memory.dmp

Filesize
1.6MB

Download
memory/2580-169-0x0000000077710000-0x000000007789E000-memory.dmp

Filesize
1.6MB

Download
memory/2580-170-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/2580-173-0x0000000077710000-0x000000007789E000-memory.dmp

Filesize
1.6MB

Download
memory/2580-174-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/2580-175-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/2580-176-0x0000000077710000-0x000000007789E000-memory.dmp

Filesize
1.6MB

Download
memory/2580-177-0x0000000077710000-0x000000007789E000-memory.dmp

Filesize
1.6MB

Download
memory/2580-178-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/2580-179-0x0000000077710000-0x000000007789E000-memory.dmp

Filesize
1.6MB

Download
memory/2580-180-0x0000000077710000-0x000000007789E000-memory.dmp

Filesize
1.6MB

Download
memory/2580-181-0x0000000077710000-0x000000007789E000-memory.dmp

Filesize
1.6MB

Download
memory/2580-182-0x0000000077710000-0x000000007789E000-memory.dmp

Filesize
1.6MB

Download
memory/2580-183-0x0000000077710000-0x000000007789E000-memory.dmp

Filesize
1.6MB

Download
memory/2580-184-0x0000000077710000-0x000000007789E000-memory.dmp

Filesize
1.6MB

Download
memory/2580-121-0x0000000077710000-0x000000007789E000-memory.dmp

Filesize
1.6MB

Download
memory/2580-185-0x0000000077710000-0x000000007789E000-memory.dmp

Filesize
1.6MB

Download
memory/2580-188-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/2580-195-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/2580-120-0x0000000077710000-0x000000007789E000-memory.dmp

Filesize
1.6MB

Download
memory/4216-305-0x0000000000000000-mapping.dmp

Download
memory/4216-362-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4216-373-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4908-306-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4908-303-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4908-372-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download