gh0strat | 2fe92c85d11dc83adad69eee0357255b6a5336f32b6953a486dec667f7284e5c

Analysis

max time kernel
158s
max time network
167s
platform
windows10-1703_x64
resource
win10-20220812-en
resource tags

arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
submitted
06/10/2022, 20:14

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General

Target

2fe92c85d11dc83adad69eee0357255b6a5336f32b6953a486dec667f7284e5c.exe
Size

375KB
MD5

6de5522ecf9f09f903ca4ff1a0822bd8
SHA1

203e3428c336184d7b223c22344f3a8ca23f0c65
SHA256

2fe92c85d11dc83adad69eee0357255b6a5336f32b6953a486dec667f7284e5c
SHA512

03c0d079776081f47ebb3e7033a817ae5e6b8ccf50528b02be6fb8aa5a6bfe6eede779574623f4f3fcf45b12bc2ddc555eeb6275a2da9abd42162a598a25313e
SSDEEP

6144:Wv5zQJVb5p72cHF1ybDFwekh212KhvwIb759QOaBjpaVRPu23E2rJmWjFc94:W4VOiF1WD7kE1dTYOi8V5u23zmWFy4

Score

10^/10

gh0strat rat upx

Malware Config

Signatures

Gh0st RAT payload 7 IoCs

resource	yara_rule
behavioral1/memory/3836-170-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/3836-171-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/3836-174-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4444-252-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/5060-305-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4728-356-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4728-369-0x0000000010000000-0x0000000010362000-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
4444	SQLSerasi.exe
5060	SQLSerasi.exe
4728	SQLSerasi.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3836-166-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/3836-170-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/3836-171-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/3836-174-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4444-252-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/5060-305-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4728-356-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4728-369-0x0000000010000000-0x0000000010362000-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	2fe92c85d11dc83adad69eee0357255b6a5336f32b6953a486dec667f7284e5c.exe
File opened for modification	C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe	2fe92c85d11dc83adad69eee0357255b6a5336f32b6953a486dec667f7284e5c.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 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
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1	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\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
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

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	3836	2fe92c85d11dc83adad69eee0357255b6a5336f32b6953a486dec667f7284e5c.exe
Token: SeDebugPrivilege	4444	SQLSerasi.exe
Token: SeDebugPrivilege	5060	SQLSerasi.exe
Token: SeDebugPrivilege	5060	SQLSerasi.exe
Token: SeDebugPrivilege	4728	SQLSerasi.exe
Token: SeDebugPrivilege	4728	SQLSerasi.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3836 wrote to memory of 4444	3836	2fe92c85d11dc83adad69eee0357255b6a5336f32b6953a486dec667f7284e5c.exe	66
PID 3836 wrote to memory of 4444	3836	2fe92c85d11dc83adad69eee0357255b6a5336f32b6953a486dec667f7284e5c.exe	66
PID 3836 wrote to memory of 4444	3836	2fe92c85d11dc83adad69eee0357255b6a5336f32b6953a486dec667f7284e5c.exe	66
PID 5060 wrote to memory of 4728	5060	SQLSerasi.exe	68
PID 5060 wrote to memory of 4728	5060	SQLSerasi.exe	68
PID 5060 wrote to memory of 4728	5060	SQLSerasi.exe	68

C:\Users\Admin\AppData\Local\Temp\2fe92c85d11dc83adad69eee0357255b6a5336f32b6953a486dec667f7284e5c.exe
"C:\Users\Admin\AppData\Local\Temp\2fe92c85d11dc83adad69eee0357255b6a5336f32b6953a486dec667f7284e5c.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3836
- 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:4444

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:5060
- 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:4728

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
3e32755114d81e57fdf1010e2def0d21

SHA1
d0fc8a112749a7b4f05fefef53c42cf3033a9985

SHA256
72dfe9f49fd4ffab8c7500d6a9ef9ce3e1f9e201e62d1016a73afd5f8a6059d3

SHA512
564df36f065c84ce043eb23f36ac3447d7c89cf6362946d44e0058ed6d5c956f9c9029a6e06f72720a3b0065f1738df656c0d175bb7533c0ab0d2813413ac96e

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

Filesize
39.4MB

MD5
3e32755114d81e57fdf1010e2def0d21

SHA1
d0fc8a112749a7b4f05fefef53c42cf3033a9985

SHA256
72dfe9f49fd4ffab8c7500d6a9ef9ce3e1f9e201e62d1016a73afd5f8a6059d3

SHA512
564df36f065c84ce043eb23f36ac3447d7c89cf6362946d44e0058ed6d5c956f9c9029a6e06f72720a3b0065f1738df656c0d175bb7533c0ab0d2813413ac96e

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

Filesize
39.4MB

MD5
3e32755114d81e57fdf1010e2def0d21

SHA1
d0fc8a112749a7b4f05fefef53c42cf3033a9985

SHA256
72dfe9f49fd4ffab8c7500d6a9ef9ce3e1f9e201e62d1016a73afd5f8a6059d3

SHA512
564df36f065c84ce043eb23f36ac3447d7c89cf6362946d44e0058ed6d5c956f9c9029a6e06f72720a3b0065f1738df656c0d175bb7533c0ab0d2813413ac96e

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

Filesize
39.4MB

MD5
3e32755114d81e57fdf1010e2def0d21

SHA1
d0fc8a112749a7b4f05fefef53c42cf3033a9985

SHA256
72dfe9f49fd4ffab8c7500d6a9ef9ce3e1f9e201e62d1016a73afd5f8a6059d3

SHA512
564df36f065c84ce043eb23f36ac3447d7c89cf6362946d44e0058ed6d5c956f9c9029a6e06f72720a3b0065f1738df656c0d175bb7533c0ab0d2813413ac96e

Download Submit
memory/3836-144-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3836-154-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3836-118-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3836-119-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3836-120-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3836-121-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3836-122-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/3836-123-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3836-124-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3836-125-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3836-126-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3836-127-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3836-128-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3836-129-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3836-130-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3836-131-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3836-132-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3836-133-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3836-134-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3836-135-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3836-136-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3836-137-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3836-138-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3836-139-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3836-141-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3836-142-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3836-143-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3836-153-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3836-146-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3836-147-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3836-148-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3836-149-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3836-151-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3836-150-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3836-116-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3836-140-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3836-117-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3836-152-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3836-145-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3836-155-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3836-156-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3836-157-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3836-158-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3836-159-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3836-160-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3836-161-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3836-162-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3836-163-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3836-164-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3836-165-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3836-166-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/3836-169-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3836-170-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/3836-171-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/3836-172-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3836-173-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3836-174-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/3836-175-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3836-176-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3836-177-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3836-178-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3836-179-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3836-180-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3836-181-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3836-188-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4444-252-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4444-255-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4444-299-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4728-356-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4728-368-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4728-369-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/5060-305-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/5060-367-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download