gh0strat | aa774a4149af83f70a0c22b1fb0be6b752c979397341940ed59d586e4b5acc97

Analysis

max time kernel
146s
max time network
136s
platform
windows10-1703_x64
resource
win10-20220812-en
resource tags

arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
submitted
07/10/2022, 15:30

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General

Target

aa774a4149af83f70a0c22b1fb0be6b752c979397341940ed59d586e4b5acc97.exe
Size

375KB
MD5

51d65b2110a8d181be41d7e315443b81
SHA1

22ede0bcf63a03c4641d7cdd5a04cc893e40abf2
SHA256

aa774a4149af83f70a0c22b1fb0be6b752c979397341940ed59d586e4b5acc97
SHA512

37def8968cfadba4b48486f5ca03f8166b39c65cea375ca0bc4dd106493e626a8416c14c3734c39bc39447a7fda6d6a7a80c4e22e77eb49d3daa02b48c5a008b
SSDEEP

6144:Ev5zQJVb5p72cHF1ybDFwekh212KhvwIb759QOaBjpaVRPu23E2rJmWjFc94:E4VOiF1WD7kE1dTYOi8V5u23zmWFy4

Score

10^/10

gh0strat rat upx

Malware Config

Signatures

Gh0st RAT payload 8 IoCs

resource	yara_rule
behavioral1/memory/1524-171-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/1524-170-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/1524-172-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/1524-175-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/3348-280-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4192-299-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4124-359-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4192-368-0x0000000010000000-0x0000000010362000-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
3348	SQLSerasi.exe
4192	SQLSerasi.exe
4124	SQLSerasi.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1524-166-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/1524-171-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/1524-170-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/1524-172-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/1524-175-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/3348-280-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4192-299-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4124-359-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4192-368-0x0000000010000000-0x0000000010362000-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\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	aa774a4149af83f70a0c22b1fb0be6b752c979397341940ed59d586e4b5acc97.exe
File opened for modification	C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe	aa774a4149af83f70a0c22b1fb0be6b752c979397341940ed59d586e4b5acc97.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 (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
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	SQLSerasi.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	1524	aa774a4149af83f70a0c22b1fb0be6b752c979397341940ed59d586e4b5acc97.exe
Token: SeDebugPrivilege	3348	SQLSerasi.exe
Token: SeDebugPrivilege	4192	SQLSerasi.exe
Token: SeDebugPrivilege	4192	SQLSerasi.exe
Token: SeDebugPrivilege	4124	SQLSerasi.exe
Token: SeDebugPrivilege	4124	SQLSerasi.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1524 wrote to memory of 3348	1524	aa774a4149af83f70a0c22b1fb0be6b752c979397341940ed59d586e4b5acc97.exe	66
PID 1524 wrote to memory of 3348	1524	aa774a4149af83f70a0c22b1fb0be6b752c979397341940ed59d586e4b5acc97.exe	66
PID 1524 wrote to memory of 3348	1524	aa774a4149af83f70a0c22b1fb0be6b752c979397341940ed59d586e4b5acc97.exe	66
PID 4192 wrote to memory of 4124	4192	SQLSerasi.exe	68
PID 4192 wrote to memory of 4124	4192	SQLSerasi.exe	68
PID 4192 wrote to memory of 4124	4192	SQLSerasi.exe	68

C:\Users\Admin\AppData\Local\Temp\aa774a4149af83f70a0c22b1fb0be6b752c979397341940ed59d586e4b5acc97.exe
"C:\Users\Admin\AppData\Local\Temp\aa774a4149af83f70a0c22b1fb0be6b752c979397341940ed59d586e4b5acc97.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1524
- 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:3348

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:4192
- 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:4124

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
1eb84a5cad8a7850f6515028916072e0

SHA1
6c6a0249ede0ffd6ed5cfffd95475bf91d78a077

SHA256
39eca0ca3b0d10a835c84c476db632042d6fa68bc4561384c6bf5eb0066dd79d

SHA512
d3c3b231840d30eb9bedc45f5da2a2b1b04c1e91fe33661b0660e87f4b60737fa600e7a77d7d29ffc282cbbde7c59e04fc64007313b69dc80dd71bc426de86e9

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

Filesize
39.4MB

MD5
1eb84a5cad8a7850f6515028916072e0

SHA1
6c6a0249ede0ffd6ed5cfffd95475bf91d78a077

SHA256
39eca0ca3b0d10a835c84c476db632042d6fa68bc4561384c6bf5eb0066dd79d

SHA512
d3c3b231840d30eb9bedc45f5da2a2b1b04c1e91fe33661b0660e87f4b60737fa600e7a77d7d29ffc282cbbde7c59e04fc64007313b69dc80dd71bc426de86e9

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

Filesize
39.4MB

MD5
1eb84a5cad8a7850f6515028916072e0

SHA1
6c6a0249ede0ffd6ed5cfffd95475bf91d78a077

SHA256
39eca0ca3b0d10a835c84c476db632042d6fa68bc4561384c6bf5eb0066dd79d

SHA512
d3c3b231840d30eb9bedc45f5da2a2b1b04c1e91fe33661b0660e87f4b60737fa600e7a77d7d29ffc282cbbde7c59e04fc64007313b69dc80dd71bc426de86e9

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

Filesize
39.4MB

MD5
1eb84a5cad8a7850f6515028916072e0

SHA1
6c6a0249ede0ffd6ed5cfffd95475bf91d78a077

SHA256
39eca0ca3b0d10a835c84c476db632042d6fa68bc4561384c6bf5eb0066dd79d

SHA512
d3c3b231840d30eb9bedc45f5da2a2b1b04c1e91fe33661b0660e87f4b60737fa600e7a77d7d29ffc282cbbde7c59e04fc64007313b69dc80dd71bc426de86e9

Download Submit
memory/1524-151-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-155-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-119-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-120-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-121-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-122-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-123-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-124-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/1524-125-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-126-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-128-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-127-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-129-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-130-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-131-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-132-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-133-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-134-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-136-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-135-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-137-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-138-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-140-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-139-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-141-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-142-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-143-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-154-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-145-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-146-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-147-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-148-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-149-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-150-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-117-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-152-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-118-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-153-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-144-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-156-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-157-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-158-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-159-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-160-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-161-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-162-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-163-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-164-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-165-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-166-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/1524-169-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-171-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/1524-170-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/1524-173-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-172-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/1524-174-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-175-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/1524-176-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-177-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-178-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-179-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-180-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-181-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-182-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/1524-188-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/1524-116-0x0000000077290000-0x000000007741E000-memory.dmp

Filesize
1.6MB

Download
memory/3348-280-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/3348-301-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4124-359-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4124-369-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4192-282-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4192-299-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4192-368-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download