gh0strat | a6c0f4b96ebf0bb58b82588fc9ce2e66288427c49d941d7c62c54c4418361d31

Analysis

max time kernel
147s
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
01/10/2022, 01:58

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General

Target

a6c0f4b96ebf0bb58b82588fc9ce2e66288427c49d941d7c62c54c4418361d31.exe
Size

375KB
MD5

405b61cf247b7a5873f6dfe1455f61e7
SHA1

d85783a57c76c098df30eecc318b2bfba662afdc
SHA256

a6c0f4b96ebf0bb58b82588fc9ce2e66288427c49d941d7c62c54c4418361d31
SHA512

0744068a0d90b077a3b191a160662724f09033bbf8689e38cb9dd51de3291f3f70f3a67db7b18a2c453f5b0711064404ebb001a1ed8196aff85508d52744b31a
SSDEEP

6144:1v5zQJVb5p72cHF1ybDFwekh212KhvwIb759QOaBjpaVRPu23E2rJmWjFc94:14VOiF1WD7kE1dTYOi8V5u23zmWFy4

Score

10^/10

gh0strat rat upx

Malware Config

Signatures

Gh0st RAT payload 8 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/2700-176-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4224-274-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4936-298-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/5008-361-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4936-368-0x0000000010000000-0x0000000010362000-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
4224	SQLSerasi.exe
4936	SQLSerasi.exe
5008	SQLSerasi.exe

UPX packed file 9 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/2700-176-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4224-274-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4936-298-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/5008-361-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4936-368-0x0000000010000000-0x0000000010362000-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	a6c0f4b96ebf0bb58b82588fc9ce2e66288427c49d941d7c62c54c4418361d31.exe
File opened for modification	C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe	a6c0f4b96ebf0bb58b82588fc9ce2e66288427c49d941d7c62c54c4418361d31.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\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
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	SQLSerasi.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	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	a6c0f4b96ebf0bb58b82588fc9ce2e66288427c49d941d7c62c54c4418361d31.exe
Token: SeDebugPrivilege	4224	SQLSerasi.exe
Token: SeDebugPrivilege	4936	SQLSerasi.exe
Token: SeDebugPrivilege	4936	SQLSerasi.exe
Token: SeDebugPrivilege	5008	SQLSerasi.exe
Token: SeDebugPrivilege	5008	SQLSerasi.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2700 wrote to memory of 4224	2700	a6c0f4b96ebf0bb58b82588fc9ce2e66288427c49d941d7c62c54c4418361d31.exe	66
PID 2700 wrote to memory of 4224	2700	a6c0f4b96ebf0bb58b82588fc9ce2e66288427c49d941d7c62c54c4418361d31.exe	66
PID 2700 wrote to memory of 4224	2700	a6c0f4b96ebf0bb58b82588fc9ce2e66288427c49d941d7c62c54c4418361d31.exe	66
PID 4936 wrote to memory of 5008	4936	SQLSerasi.exe	68
PID 4936 wrote to memory of 5008	4936	SQLSerasi.exe	68
PID 4936 wrote to memory of 5008	4936	SQLSerasi.exe	68

C:\Users\Admin\AppData\Local\Temp\a6c0f4b96ebf0bb58b82588fc9ce2e66288427c49d941d7c62c54c4418361d31.exe
"C:\Users\Admin\AppData\Local\Temp\a6c0f4b96ebf0bb58b82588fc9ce2e66288427c49d941d7c62c54c4418361d31.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:4224

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:4936
- 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:5008

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
94fa11fec801bed5ac4e032e49372200

SHA1
7d0ad73dbf0cf740a580bcdb2d23fbc90fc760b3

SHA256
ff0b198c89487a36c1f66b4c2e91671ee26e4aa592549bcaf66d1b2a528c059b

SHA512
ff874885f454d5611856abc426ac203fff7157367fa5f32706b94d14fce8714f3935be075ec0a9e14d0219d17a2d7b67ec46c10fc7817374d64af522fe450cb7

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

Filesize
39.4MB

MD5
94fa11fec801bed5ac4e032e49372200

SHA1
7d0ad73dbf0cf740a580bcdb2d23fbc90fc760b3

SHA256
ff0b198c89487a36c1f66b4c2e91671ee26e4aa592549bcaf66d1b2a528c059b

SHA512
ff874885f454d5611856abc426ac203fff7157367fa5f32706b94d14fce8714f3935be075ec0a9e14d0219d17a2d7b67ec46c10fc7817374d64af522fe450cb7

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

Filesize
39.4MB

MD5
94fa11fec801bed5ac4e032e49372200

SHA1
7d0ad73dbf0cf740a580bcdb2d23fbc90fc760b3

SHA256
ff0b198c89487a36c1f66b4c2e91671ee26e4aa592549bcaf66d1b2a528c059b

SHA512
ff874885f454d5611856abc426ac203fff7157367fa5f32706b94d14fce8714f3935be075ec0a9e14d0219d17a2d7b67ec46c10fc7817374d64af522fe450cb7

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

Filesize
39.4MB

MD5
94fa11fec801bed5ac4e032e49372200

SHA1
7d0ad73dbf0cf740a580bcdb2d23fbc90fc760b3

SHA256
ff0b198c89487a36c1f66b4c2e91671ee26e4aa592549bcaf66d1b2a528c059b

SHA512
ff874885f454d5611856abc426ac203fff7157367fa5f32706b94d14fce8714f3935be075ec0a9e14d0219d17a2d7b67ec46c10fc7817374d64af522fe450cb7

Download Submit
memory/2700-144-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-154-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-118-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-119-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-120-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-122-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-121-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/2700-123-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-124-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-125-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-126-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-127-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-128-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-129-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-130-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-131-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-132-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-133-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-134-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-135-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-136-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-137-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-138-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-140-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-141-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-142-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-143-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-153-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-146-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-147-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-148-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-149-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-150-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-151-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-116-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-139-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-117-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-152-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-145-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-155-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-156-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-157-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-158-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-159-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-160-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-161-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-162-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-163-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-164-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-165-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

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

Filesize
3.4MB

Download
memory/2700-169-0x0000000077A60000-0x0000000077BEE000-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/2700-173-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-174-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-176-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/2700-175-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-177-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-178-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-179-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-180-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-181-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2700-182-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

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

Filesize
420KB

Download
memory/4224-274-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4224-300-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4936-298-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4936-367-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4936-368-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/5008-361-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/5008-369-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download