gh0strat | 1b5cb530732bf7623d55942ebec994960c800386c4e21c75d0939b592a512582

Analysis

max time kernel
138s
max time network
153s
platform
windows10-1703_x64
resource
win10-20220901-en
resource tags

arch:x64arch:x86image:win10-20220901-enlocale:en-usos:windows10-1703-x64system
submitted
04-10-2022 16:21

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General

Target

1b5cb530732bf7623d55942ebec994960c800386c4e21c75d0939b592a512582.exe
Size

375KB
MD5

8b047e71c2e4062e3ea53892120a7aa6
SHA1

30ce076f14dfdb4d27f7005e7a7c44947168cb3c
SHA256

1b5cb530732bf7623d55942ebec994960c800386c4e21c75d0939b592a512582
SHA512

a7bd7e7ef1a415557ac857bd5aa7b546c07c3a811bbf7acf4bc7c35362b7d7b21b7423c4998939a4e6548a81b9c85e866c693645ea3a50f71c8457238d31f041
SSDEEP

6144:tv5zQJVb5p72cHF1ybDFwekh212KhvwIb759QOaBjpaVRPu23E2rJmWjFc94:t4VOiF1WD7kE1dTYOi8V5u23zmWFy4

Score

10^/10

gh0strat rat upx

Malware Config

Signatures

Gh0st RAT payload 8 IoCs

resource	yara_rule
behavioral1/memory/64-174-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/64-175-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/64-176-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/64-177-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/3992-249-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4508-306-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/3704-361-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/3704-369-0x0000000010000000-0x0000000010362000-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
3992	SQLSerasi.exe
4508	SQLSerasi.exe
3704	SQLSerasi.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral1/memory/64-170-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/64-174-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/64-175-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/64-176-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/64-177-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/3992-249-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4508-306-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/3704-361-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/3704-369-0x0000000010000000-0x0000000010362000-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 created	C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe	1b5cb530732bf7623d55942ebec994960c800386c4e21c75d0939b592a512582.exe
File opened for modification	C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe	1b5cb530732bf7623d55942ebec994960c800386c4e21c75d0939b592a512582.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\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
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\ProcessorNameString	SQLSerasi.exe

Modifies data under HKEY_USERS 8 IoCs

description	ioc	Process
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
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

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	64	1b5cb530732bf7623d55942ebec994960c800386c4e21c75d0939b592a512582.exe
Token: SeDebugPrivilege	3992	SQLSerasi.exe
Token: SeDebugPrivilege	4508	SQLSerasi.exe
Token: SeDebugPrivilege	4508	SQLSerasi.exe
Token: SeDebugPrivilege	3704	SQLSerasi.exe
Token: SeDebugPrivilege	3704	SQLSerasi.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 64 wrote to memory of 3992	64	1b5cb530732bf7623d55942ebec994960c800386c4e21c75d0939b592a512582.exe	66
PID 64 wrote to memory of 3992	64	1b5cb530732bf7623d55942ebec994960c800386c4e21c75d0939b592a512582.exe	66
PID 64 wrote to memory of 3992	64	1b5cb530732bf7623d55942ebec994960c800386c4e21c75d0939b592a512582.exe	66
PID 4508 wrote to memory of 3704	4508	SQLSerasi.exe	68
PID 4508 wrote to memory of 3704	4508	SQLSerasi.exe	68
PID 4508 wrote to memory of 3704	4508	SQLSerasi.exe	68

C:\Users\Admin\AppData\Local\Temp\1b5cb530732bf7623d55942ebec994960c800386c4e21c75d0939b592a512582.exe
"C:\Users\Admin\AppData\Local\Temp\1b5cb530732bf7623d55942ebec994960c800386c4e21c75d0939b592a512582.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:64
- 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:3992

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:4508
- 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:3704

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
fb41e01e920b5bf38cfcf0cc805620e2

SHA1
1a16e05652615ca8baa0c7bde0af494a45a82490

SHA256
c170d146615ae4b0d69dd328cc911dfecd4b9b4e15cebe4db4068b84ef2c4efb

SHA512
6b3e620c5b637cf0d0e5e12e1d9662fc363c0078c2a2581b60eaea9f768db7e7d14499d8264defb10f9960d96a985f09c1501d3b85b99c0f6008e1e09498e167

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

Filesize
39.4MB

MD5
fb41e01e920b5bf38cfcf0cc805620e2

SHA1
1a16e05652615ca8baa0c7bde0af494a45a82490

SHA256
c170d146615ae4b0d69dd328cc911dfecd4b9b4e15cebe4db4068b84ef2c4efb

SHA512
6b3e620c5b637cf0d0e5e12e1d9662fc363c0078c2a2581b60eaea9f768db7e7d14499d8264defb10f9960d96a985f09c1501d3b85b99c0f6008e1e09498e167

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

Filesize
39.4MB

MD5
fb41e01e920b5bf38cfcf0cc805620e2

SHA1
1a16e05652615ca8baa0c7bde0af494a45a82490

SHA256
c170d146615ae4b0d69dd328cc911dfecd4b9b4e15cebe4db4068b84ef2c4efb

SHA512
6b3e620c5b637cf0d0e5e12e1d9662fc363c0078c2a2581b60eaea9f768db7e7d14499d8264defb10f9960d96a985f09c1501d3b85b99c0f6008e1e09498e167

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

Filesize
39.4MB

MD5
fb41e01e920b5bf38cfcf0cc805620e2

SHA1
1a16e05652615ca8baa0c7bde0af494a45a82490

SHA256
c170d146615ae4b0d69dd328cc911dfecd4b9b4e15cebe4db4068b84ef2c4efb

SHA512
6b3e620c5b637cf0d0e5e12e1d9662fc363c0078c2a2581b60eaea9f768db7e7d14499d8264defb10f9960d96a985f09c1501d3b85b99c0f6008e1e09498e167

Download Submit
memory/64-156-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/64-186-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/64-122-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/64-123-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/64-124-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/64-125-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/64-126-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/64-127-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/64-128-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/64-129-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/64-130-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/64-131-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/64-132-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/64-134-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/64-133-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/64-135-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/64-136-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/64-137-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/64-139-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/64-138-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/64-141-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/64-140-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/64-142-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/64-143-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/64-144-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/64-145-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/64-146-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/64-148-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/64-149-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/64-147-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/64-150-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/64-151-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/64-152-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/64-153-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/64-154-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/64-155-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/64-168-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/64-157-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/64-121-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/64-159-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/64-160-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/64-161-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/64-162-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/64-163-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/64-164-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/64-165-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/64-166-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/64-167-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/64-120-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/64-169-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/64-170-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/64-173-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/64-174-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/64-175-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/64-176-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/64-177-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/64-178-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/64-179-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/64-180-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/64-181-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/64-182-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/64-183-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/64-184-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/64-185-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/64-158-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/64-188-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/64-194-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/3704-305-0x0000000000000000-mapping.dmp

Download
memory/3704-361-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/3704-369-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/3704-374-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/3992-190-0x0000000000000000-mapping.dmp

Download
memory/3992-249-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/3992-304-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4508-306-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4508-373-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download