gh0strat | 7b8a31839689e75b7f4bf4dee6cda3b79c68cb798bf802a856564e65fa2620d5

General

Target

7b8a31839689e75b7f4bf4dee6cda3b79c68cb798bf802a856564e65fa2620d5.exe
Size

375KB
MD5

854c05dd8236894e88e3ed49059eae45
SHA1

2a3751670d81cae7d5855e2598e59441e75560e3
SHA256

7b8a31839689e75b7f4bf4dee6cda3b79c68cb798bf802a856564e65fa2620d5
SHA512

0eb616289046e4decc6a5c849f46d761ba14a35c2acfed67eac536a1511e435860bf20f24eb71d33c6a44d8ef1eb23171b46e0ab07731aec0a42f9d61604ddbe
SSDEEP

6144:Dv5zQJVb5p72cHF1ybDFwekh212KhvwIb759QOaBjpaVRPu23E2rJmWjFc94:D4VOiF1WD7kE1dTYOi8V5u23zmWFy4

Score

10^/10

Malware Config

Signatures

Gh0st RAT payload 12 IoCs

resource	yara_rule
behavioral1/memory/3404-136-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/3404-137-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/3404-138-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4788-153-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4788-154-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/3700-155-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4788-157-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/216-172-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/216-176-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/1276-177-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4788-180-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/216-181-0x0000000010000000-0x0000000010362000-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
3700	SQLSerasi.exe
4788	SQLSerasi.exe
216	SQLSerasi.exe
1276	SQLSerasi.exe

UPX packed file 13 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3404-133-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/3404-136-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/3404-137-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/3404-138-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4788-150-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4788-153-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4788-154-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/3700-155-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4788-157-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/216-172-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/216-176-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4788-180-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/216-181-0x0000000010000000-0x0000000010362000-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-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	7b8a31839689e75b7f4bf4dee6cda3b79c68cb798bf802a856564e65fa2620d5.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	7b8a31839689e75b7f4bf4dee6cda3b79c68cb798bf802a856564e65fa2620d5.exe
File opened for modification	C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe	7b8a31839689e75b7f4bf4dee6cda3b79c68cb798bf802a856564e65fa2620d5.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
3488	4788	WerFault.exe	85

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\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
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	SQLSerasi.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	3404	7b8a31839689e75b7f4bf4dee6cda3b79c68cb798bf802a856564e65fa2620d5.exe
Token: SeDebugPrivilege	3700	SQLSerasi.exe
Token: SeDebugPrivilege	4788	SQLSerasi.exe
Token: SeDebugPrivilege	4788	SQLSerasi.exe
Token: SeDebugPrivilege	4788	SQLSerasi.exe
Token: SeDebugPrivilege	216	SQLSerasi.exe
Token: SeDebugPrivilege	1276	SQLSerasi.exe
Token: SeDebugPrivilege	216	SQLSerasi.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3404 wrote to memory of 3700	3404	7b8a31839689e75b7f4bf4dee6cda3b79c68cb798bf802a856564e65fa2620d5.exe	84
PID 3404 wrote to memory of 3700	3404	7b8a31839689e75b7f4bf4dee6cda3b79c68cb798bf802a856564e65fa2620d5.exe	84
PID 3404 wrote to memory of 3700	3404	7b8a31839689e75b7f4bf4dee6cda3b79c68cb798bf802a856564e65fa2620d5.exe	84
PID 4788 wrote to memory of 216	4788	SQLSerasi.exe	86
PID 4788 wrote to memory of 216	4788	SQLSerasi.exe	86
PID 4788 wrote to memory of 216	4788	SQLSerasi.exe	86
PID 4788 wrote to memory of 1276	4788	SQLSerasi.exe	88
PID 4788 wrote to memory of 1276	4788	SQLSerasi.exe	88
PID 4788 wrote to memory of 1276	4788	SQLSerasi.exe	88

C:\Users\Admin\AppData\Local\Temp\7b8a31839689e75b7f4bf4dee6cda3b79c68cb798bf802a856564e65fa2620d5.exe
"C:\Users\Admin\AppData\Local\Temp\7b8a31839689e75b7f4bf4dee6cda3b79c68cb798bf802a856564e65fa2620d5.exe"
1⤵
- Checks computer location settings
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3404
- 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:3700

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:4788
- 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:216
- 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:1276
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4788 -s 640
  2⤵
  - Program crash
  PID:3488

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 384 -p 4788 -ip 4788
1⤵
PID:3464

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

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Downloads

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

Filesize
39.4MB

MD5
cbff2b9ae5627e6b11a286b164db1384

SHA1
69c55eb9e3b823a8c033a1f1f3ea0c9fa6cad4a7

SHA256
1b1082434b63fd2914fe281b374ab8a9a8a6ac0724c219c957c64232d3fc9a9b

SHA512
6edb9fadca8b1012c6884b480ff8f921a325d3af9824d9e39cacc437b07ad9673f089b1a33514ad485ebd49bdf534f11c94409b122a752909566df92f071e505

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

Filesize
39.4MB

MD5
cbff2b9ae5627e6b11a286b164db1384

SHA1
69c55eb9e3b823a8c033a1f1f3ea0c9fa6cad4a7

SHA256
1b1082434b63fd2914fe281b374ab8a9a8a6ac0724c219c957c64232d3fc9a9b

SHA512
6edb9fadca8b1012c6884b480ff8f921a325d3af9824d9e39cacc437b07ad9673f089b1a33514ad485ebd49bdf534f11c94409b122a752909566df92f071e505

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

Filesize
39.4MB

MD5
cbff2b9ae5627e6b11a286b164db1384

SHA1
69c55eb9e3b823a8c033a1f1f3ea0c9fa6cad4a7

SHA256
1b1082434b63fd2914fe281b374ab8a9a8a6ac0724c219c957c64232d3fc9a9b

SHA512
6edb9fadca8b1012c6884b480ff8f921a325d3af9824d9e39cacc437b07ad9673f089b1a33514ad485ebd49bdf534f11c94409b122a752909566df92f071e505

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

Filesize
39.4MB

MD5
cbff2b9ae5627e6b11a286b164db1384

SHA1
69c55eb9e3b823a8c033a1f1f3ea0c9fa6cad4a7

SHA256
1b1082434b63fd2914fe281b374ab8a9a8a6ac0724c219c957c64232d3fc9a9b

SHA512
6edb9fadca8b1012c6884b480ff8f921a325d3af9824d9e39cacc437b07ad9673f089b1a33514ad485ebd49bdf534f11c94409b122a752909566df92f071e505

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

Filesize
39.4MB

MD5
cbff2b9ae5627e6b11a286b164db1384

SHA1
69c55eb9e3b823a8c033a1f1f3ea0c9fa6cad4a7

SHA256
1b1082434b63fd2914fe281b374ab8a9a8a6ac0724c219c957c64232d3fc9a9b

SHA512
6edb9fadca8b1012c6884b480ff8f921a325d3af9824d9e39cacc437b07ad9673f089b1a33514ad485ebd49bdf534f11c94409b122a752909566df92f071e505

Download Submit
memory/216-169-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/216-176-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/216-172-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/216-181-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/1276-179-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/1276-178-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/1276-174-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/1276-177-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/1276-182-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/3404-143-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/3404-132-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/3404-133-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/3404-136-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/3404-137-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/3404-138-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/3700-145-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/3700-158-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/3700-155-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4788-150-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4788-153-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4788-154-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4788-180-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4788-156-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4788-157-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads