gh0strat | 4acabf4bc52f2675485658046f7c6fc736e62db9d367df96368ae5bc56aa1076

General

Target

4acabf4bc52f2675485658046f7c6fc736e62db9d367df96368ae5bc56aa1076.exe
Size

375KB
MD5

7923d4bc28fc434f62cad65a776a7b2e
SHA1

5ccf6abc295e58813aa7c88d377a795b5a21acc0
SHA256

4acabf4bc52f2675485658046f7c6fc736e62db9d367df96368ae5bc56aa1076
SHA512

3aa4e8bd8487794e16597f24bab52ed5919c9fae8e5b302b1317feec4a48b29d69bf9e63a1132fb24ff2ccd4cb270b776ae90dbba1f8e09a032eefc9b3dbc4f2
SSDEEP

6144:Zv5zQJVb5p72cHF1ybDFwekh212KhvwIb759QOaBjpaVRPu23E2rJmWjFc94:Z4VOiF1WD7kE1dTYOi8V5u23zmWFy4

Score

10^/10

Malware Config

Signatures

Gh0st RAT payload 8 IoCs

resource	yara_rule
behavioral1/memory/1584-136-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/1584-137-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/1584-138-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4868-152-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4868-153-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/2080-154-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4868-158-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/1128-174-0x0000000010000000-0x0000000010362000-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 4 IoCs

pid	Process
2080	SQLSerasi.exe
4868	SQLSerasi.exe
1128	SQLSerasi.exe
1668	SQLSerasi.exe

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1584-132-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/1584-136-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/1584-137-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/1584-138-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4868-149-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4868-152-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4868-153-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/2080-154-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4868-158-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/1128-174-0x0000000010000000-0x0000000010362000-memory.dmp	upx

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	4acabf4bc52f2675485658046f7c6fc736e62db9d367df96368ae5bc56aa1076.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
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	4acabf4bc52f2675485658046f7c6fc736e62db9d367df96368ae5bc56aa1076.exe
File opened for modification	C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe	4acabf4bc52f2675485658046f7c6fc736e62db9d367df96368ae5bc56aa1076.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4136	4868	WerFault.exe	83

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 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	1584	4acabf4bc52f2675485658046f7c6fc736e62db9d367df96368ae5bc56aa1076.exe
Token: SeDebugPrivilege	2080	SQLSerasi.exe
Token: SeDebugPrivilege	4868	SQLSerasi.exe
Token: SeDebugPrivilege	4868	SQLSerasi.exe
Token: SeDebugPrivilege	4868	SQLSerasi.exe
Token: SeDebugPrivilege	1128	SQLSerasi.exe
Token: SeDebugPrivilege	1668	SQLSerasi.exe
Token: SeDebugPrivilege	1128	SQLSerasi.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1584 wrote to memory of 2080	1584	4acabf4bc52f2675485658046f7c6fc736e62db9d367df96368ae5bc56aa1076.exe	82
PID 1584 wrote to memory of 2080	1584	4acabf4bc52f2675485658046f7c6fc736e62db9d367df96368ae5bc56aa1076.exe	82
PID 1584 wrote to memory of 2080	1584	4acabf4bc52f2675485658046f7c6fc736e62db9d367df96368ae5bc56aa1076.exe	82
PID 4868 wrote to memory of 1128	4868	SQLSerasi.exe	86
PID 4868 wrote to memory of 1128	4868	SQLSerasi.exe	86
PID 4868 wrote to memory of 1128	4868	SQLSerasi.exe	86
PID 4868 wrote to memory of 1668	4868	SQLSerasi.exe	85
PID 4868 wrote to memory of 1668	4868	SQLSerasi.exe	85
PID 4868 wrote to memory of 1668	4868	SQLSerasi.exe	85

C:\Users\Admin\AppData\Local\Temp\4acabf4bc52f2675485658046f7c6fc736e62db9d367df96368ae5bc56aa1076.exe
"C:\Users\Admin\AppData\Local\Temp\4acabf4bc52f2675485658046f7c6fc736e62db9d367df96368ae5bc56aa1076.exe"
1⤵
- Checks computer location settings
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1584
- 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:2080

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:4868
- 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:1668
- 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:1128
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4868 -s 576
  2⤵
  - Program crash
  PID:4136

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4868 -ip 4868
1⤵
PID:364

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

3

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
b88b0e183f3152eaff58c3719391cfda

SHA1
52ad19e359cc30e1bece2a4a9cbc524c93edb9e8

SHA256
db333a557b0baeabb1b91e7f8e2d0d16a4249b4889c3eaf9d0dbd3548d2ddba8

SHA512
669233d65625ff089b0239170ece312a8bf9eccb3f70eefc9fe23f3592b8d74f5dc395164ac2d05a39ad0afe0d1157b9ec86684636fe49f8d9800da0b4d1ae82

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

Filesize
39.4MB

MD5
b88b0e183f3152eaff58c3719391cfda

SHA1
52ad19e359cc30e1bece2a4a9cbc524c93edb9e8

SHA256
db333a557b0baeabb1b91e7f8e2d0d16a4249b4889c3eaf9d0dbd3548d2ddba8

SHA512
669233d65625ff089b0239170ece312a8bf9eccb3f70eefc9fe23f3592b8d74f5dc395164ac2d05a39ad0afe0d1157b9ec86684636fe49f8d9800da0b4d1ae82

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

Filesize
39.4MB

MD5
b88b0e183f3152eaff58c3719391cfda

SHA1
52ad19e359cc30e1bece2a4a9cbc524c93edb9e8

SHA256
db333a557b0baeabb1b91e7f8e2d0d16a4249b4889c3eaf9d0dbd3548d2ddba8

SHA512
669233d65625ff089b0239170ece312a8bf9eccb3f70eefc9fe23f3592b8d74f5dc395164ac2d05a39ad0afe0d1157b9ec86684636fe49f8d9800da0b4d1ae82

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

Filesize
39.4MB

MD5
b88b0e183f3152eaff58c3719391cfda

SHA1
52ad19e359cc30e1bece2a4a9cbc524c93edb9e8

SHA256
db333a557b0baeabb1b91e7f8e2d0d16a4249b4889c3eaf9d0dbd3548d2ddba8

SHA512
669233d65625ff089b0239170ece312a8bf9eccb3f70eefc9fe23f3592b8d74f5dc395164ac2d05a39ad0afe0d1157b9ec86684636fe49f8d9800da0b4d1ae82

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

Filesize
39.4MB

MD5
b88b0e183f3152eaff58c3719391cfda

SHA1
52ad19e359cc30e1bece2a4a9cbc524c93edb9e8

SHA256
db333a557b0baeabb1b91e7f8e2d0d16a4249b4889c3eaf9d0dbd3548d2ddba8

SHA512
669233d65625ff089b0239170ece312a8bf9eccb3f70eefc9fe23f3592b8d74f5dc395164ac2d05a39ad0afe0d1157b9ec86684636fe49f8d9800da0b4d1ae82

Download Submit
memory/1128-174-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/1128-172-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/1584-144-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/1584-137-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/1584-134-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/1584-138-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/1584-136-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/1584-132-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/1668-175-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/1668-173-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/2080-155-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/2080-154-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4868-158-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4868-156-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4868-153-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4868-152-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4868-149-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads