gh0strat | a709acc4d538d23848e2af69a0667f1b8d0212446e52a7729f123ac1823907b2

General

Target

a709acc4d538d23848e2af69a0667f1b8d0212446e52a7729f123ac1823907b2.exe
Size

375KB
MD5

9db35fd69e92b3706a90a32d4cf8a30c
SHA1

7520527890b4f2467062229f17492c283e752c3b
SHA256

a709acc4d538d23848e2af69a0667f1b8d0212446e52a7729f123ac1823907b2
SHA512

5596d8718504fdeb8b4cd506c32a3dbba476f0749881894ed0fc2b516a169758e373ed7b73ed28aca5f0161432b10b07d6de947131eec0c675f4c5eac5c88c5c
SSDEEP

6144:ov5zQJVb5p72cHF1ybDFwekh212KhvwIb759QOaBjpaVRPu23E2rJmWjFc94:o4VOiF1WD7kE1dTYOi8V5u23zmWFy4

Score

10^/10

Malware Config

Signatures

Gh0st RAT payload 8 IoCs

resource	yara_rule
behavioral1/memory/532-136-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/532-137-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/532-138-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4544-150-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/216-154-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/216-155-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/216-163-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/2580-175-0x0000000010000000-0x0000000010362000-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
4544	SQLSerasi.exe
216	SQLSerasi.exe
2580	SQLSerasi.exe
2820	SQLSerasi.exe

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral1/memory/532-133-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/532-136-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/532-137-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/532-138-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/216-151-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4544-150-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/216-154-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/216-155-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/216-163-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/2580-175-0x0000000010000000-0x0000000010362000-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	a709acc4d538d23848e2af69a0667f1b8d0212446e52a7729f123ac1823907b2.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\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\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	a709acc4d538d23848e2af69a0667f1b8d0212446e52a7729f123ac1823907b2.exe
File opened for modification	C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe	a709acc4d538d23848e2af69a0667f1b8d0212446e52a7729f123ac1823907b2.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
2376	216	WerFault.exe	86

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 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	532	a709acc4d538d23848e2af69a0667f1b8d0212446e52a7729f123ac1823907b2.exe
Token: SeDebugPrivilege	4544	SQLSerasi.exe
Token: SeDebugPrivilege	216	SQLSerasi.exe
Token: SeDebugPrivilege	216	SQLSerasi.exe
Token: SeDebugPrivilege	216	SQLSerasi.exe
Token: SeDebugPrivilege	2580	SQLSerasi.exe
Token: SeDebugPrivilege	2820	SQLSerasi.exe
Token: SeDebugPrivilege	2580	SQLSerasi.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 532 wrote to memory of 4544	532	a709acc4d538d23848e2af69a0667f1b8d0212446e52a7729f123ac1823907b2.exe	83
PID 532 wrote to memory of 4544	532	a709acc4d538d23848e2af69a0667f1b8d0212446e52a7729f123ac1823907b2.exe	83
PID 532 wrote to memory of 4544	532	a709acc4d538d23848e2af69a0667f1b8d0212446e52a7729f123ac1823907b2.exe	83
PID 216 wrote to memory of 2580	216	SQLSerasi.exe	88
PID 216 wrote to memory of 2580	216	SQLSerasi.exe	88
PID 216 wrote to memory of 2580	216	SQLSerasi.exe	88
PID 216 wrote to memory of 2820	216	SQLSerasi.exe	89
PID 216 wrote to memory of 2820	216	SQLSerasi.exe	89
PID 216 wrote to memory of 2820	216	SQLSerasi.exe	89

C:\Users\Admin\AppData\Local\Temp\a709acc4d538d23848e2af69a0667f1b8d0212446e52a7729f123ac1823907b2.exe
"C:\Users\Admin\AppData\Local\Temp\a709acc4d538d23848e2af69a0667f1b8d0212446e52a7729f123ac1823907b2.exe"
1⤵
- Checks computer location settings
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:532
- 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:4544

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:216
- 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: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:2820
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 216 -s 648
  2⤵
  - Program crash
  PID:2376

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 216 -ip 216
1⤵
PID:4176

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

Loading Replay Monitor...

Downloads

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

Filesize
39.4MB

MD5
631ef4c58c0600e65f5a4cabd9ab3be9

SHA1
4c8d70f84164416664d1c50bce887ead7afd6de3

SHA256
2a31a0bf3fe87dfa48b54bc834d55692798b00a5cc188d523d0a496e2d092ec0

SHA512
a6d82703d21fe66c4874ff0a3a9fca52c973c702d2b2c718d5b6403b9fcf5eef9f95fd12a4244903e139d97962c28cfa2d81fca21a475a77dc35a5170398e327

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

Filesize
39.4MB

MD5
631ef4c58c0600e65f5a4cabd9ab3be9

SHA1
4c8d70f84164416664d1c50bce887ead7afd6de3

SHA256
2a31a0bf3fe87dfa48b54bc834d55692798b00a5cc188d523d0a496e2d092ec0

SHA512
a6d82703d21fe66c4874ff0a3a9fca52c973c702d2b2c718d5b6403b9fcf5eef9f95fd12a4244903e139d97962c28cfa2d81fca21a475a77dc35a5170398e327

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

Filesize
39.4MB

MD5
631ef4c58c0600e65f5a4cabd9ab3be9

SHA1
4c8d70f84164416664d1c50bce887ead7afd6de3

SHA256
2a31a0bf3fe87dfa48b54bc834d55692798b00a5cc188d523d0a496e2d092ec0

SHA512
a6d82703d21fe66c4874ff0a3a9fca52c973c702d2b2c718d5b6403b9fcf5eef9f95fd12a4244903e139d97962c28cfa2d81fca21a475a77dc35a5170398e327

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

Filesize
39.4MB

MD5
631ef4c58c0600e65f5a4cabd9ab3be9

SHA1
4c8d70f84164416664d1c50bce887ead7afd6de3

SHA256
2a31a0bf3fe87dfa48b54bc834d55692798b00a5cc188d523d0a496e2d092ec0

SHA512
a6d82703d21fe66c4874ff0a3a9fca52c973c702d2b2c718d5b6403b9fcf5eef9f95fd12a4244903e139d97962c28cfa2d81fca21a475a77dc35a5170398e327

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

Filesize
39.4MB

MD5
631ef4c58c0600e65f5a4cabd9ab3be9

SHA1
4c8d70f84164416664d1c50bce887ead7afd6de3

SHA256
2a31a0bf3fe87dfa48b54bc834d55692798b00a5cc188d523d0a496e2d092ec0

SHA512
a6d82703d21fe66c4874ff0a3a9fca52c973c702d2b2c718d5b6403b9fcf5eef9f95fd12a4244903e139d97962c28cfa2d81fca21a475a77dc35a5170398e327

Download Submit
memory/216-163-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/216-154-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/216-159-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/216-151-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/216-155-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/532-132-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/532-138-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/532-137-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/532-142-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/532-133-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/532-136-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

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

Filesize
3.4MB

Download
memory/2580-173-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/2820-174-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4544-150-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4544-156-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4544-144-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads