gh0strat | a62e29d291617c2fe56bb602880f398acb546456912428e4c493f3122f6f5b1a

Analysis

max time kernel
138s
max time network
147s
platform
windows10-1703_x64
resource
win10-20220812-en
resource tags

arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
submitted
05-10-2022 19:00

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General

Target

a62e29d291617c2fe56bb602880f398acb546456912428e4c493f3122f6f5b1a.exe
Size

375KB
MD5

aa686d8290261376e6cef65e9187bccb
SHA1

9141007472c3948b790adfc1811a9c892beea950
SHA256

a62e29d291617c2fe56bb602880f398acb546456912428e4c493f3122f6f5b1a
SHA512

46c7e3ed3b277dec3ce4ac2c7f0f134e6f9aa5164d3322259cf317170f60c58fbb2467e06f3f89e8d9116b5d7ed2c8bb3b248d7a50eb0c102df0005fecce0d7b
SSDEEP

6144:Sv5zQJVb5p72cHF1ybDFwekh212KhvwIb759QOaBjpaVRPu23E2rJmWjFc94:S4VOiF1WD7kE1dTYOi8V5u23zmWFy4

Score

10^/10

gh0strat rat upx

Malware Config

Signatures

Gh0st RAT payload 9 IoCs

resource	yara_rule
behavioral1/memory/4368-171-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4368-170-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4368-173-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4368-174-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/2944-247-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4564-298-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/3100-357-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/3100-366-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4564-370-0x0000000010000000-0x0000000010362000-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
2944	SQLSerasi.exe
4564	SQLSerasi.exe
3100	SQLSerasi.exe

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral1/memory/4368-166-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4368-171-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4368-170-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4368-173-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4368-174-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/2944-247-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4564-298-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/3100-357-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/3100-366-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4564-370-0x0000000010000000-0x0000000010362000-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\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
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

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe	a62e29d291617c2fe56bb602880f398acb546456912428e4c493f3122f6f5b1a.exe
File created	C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe	a62e29d291617c2fe56bb602880f398acb546456912428e4c493f3122f6f5b1a.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\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 (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	4368	a62e29d291617c2fe56bb602880f398acb546456912428e4c493f3122f6f5b1a.exe
Token: SeDebugPrivilege	2944	SQLSerasi.exe
Token: SeDebugPrivilege	4564	SQLSerasi.exe
Token: SeDebugPrivilege	4564	SQLSerasi.exe
Token: SeDebugPrivilege	3100	SQLSerasi.exe
Token: SeDebugPrivilege	3100	SQLSerasi.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4368 wrote to memory of 2944	4368	a62e29d291617c2fe56bb602880f398acb546456912428e4c493f3122f6f5b1a.exe	67
PID 4368 wrote to memory of 2944	4368	a62e29d291617c2fe56bb602880f398acb546456912428e4c493f3122f6f5b1a.exe	67
PID 4368 wrote to memory of 2944	4368	a62e29d291617c2fe56bb602880f398acb546456912428e4c493f3122f6f5b1a.exe	67
PID 4564 wrote to memory of 3100	4564	SQLSerasi.exe	69
PID 4564 wrote to memory of 3100	4564	SQLSerasi.exe	69
PID 4564 wrote to memory of 3100	4564	SQLSerasi.exe	69

C:\Users\Admin\AppData\Local\Temp\a62e29d291617c2fe56bb602880f398acb546456912428e4c493f3122f6f5b1a.exe
"C:\Users\Admin\AppData\Local\Temp\a62e29d291617c2fe56bb602880f398acb546456912428e4c493f3122f6f5b1a.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4368
- 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:2944

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:4564
- 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:3100

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
494e46cbe86c461c408fbda8a35e8981

SHA1
6e8e0a75a30df10da621066cbb9c33ca27685df7

SHA256
fcf37b62592534aadc1b268cafa336b817f0fb55b1d5e315a246d1a89675da44

SHA512
db976e6c5c79dffd60d1ab88357d85aa059b15c57827c52d35f5656018f11bdcb8ef0ef3640ddb8e9ef714ef5970aee7deba7781ad630759600a6d5006901b1b

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

Filesize
39.4MB

MD5
494e46cbe86c461c408fbda8a35e8981

SHA1
6e8e0a75a30df10da621066cbb9c33ca27685df7

SHA256
fcf37b62592534aadc1b268cafa336b817f0fb55b1d5e315a246d1a89675da44

SHA512
db976e6c5c79dffd60d1ab88357d85aa059b15c57827c52d35f5656018f11bdcb8ef0ef3640ddb8e9ef714ef5970aee7deba7781ad630759600a6d5006901b1b

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

Filesize
39.4MB

MD5
494e46cbe86c461c408fbda8a35e8981

SHA1
6e8e0a75a30df10da621066cbb9c33ca27685df7

SHA256
fcf37b62592534aadc1b268cafa336b817f0fb55b1d5e315a246d1a89675da44

SHA512
db976e6c5c79dffd60d1ab88357d85aa059b15c57827c52d35f5656018f11bdcb8ef0ef3640ddb8e9ef714ef5970aee7deba7781ad630759600a6d5006901b1b

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

Filesize
39.4MB

MD5
494e46cbe86c461c408fbda8a35e8981

SHA1
6e8e0a75a30df10da621066cbb9c33ca27685df7

SHA256
fcf37b62592534aadc1b268cafa336b817f0fb55b1d5e315a246d1a89675da44

SHA512
db976e6c5c79dffd60d1ab88357d85aa059b15c57827c52d35f5656018f11bdcb8ef0ef3640ddb8e9ef714ef5970aee7deba7781ad630759600a6d5006901b1b

Download Submit
memory/2944-247-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/2944-300-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/3100-366-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/3100-357-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/3100-356-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4368-151-0x0000000077520000-0x00000000776AE000-memory.dmp

Filesize
1.6MB

Download
memory/4368-157-0x0000000077520000-0x00000000776AE000-memory.dmp

Filesize
1.6MB

Download
memory/4368-125-0x0000000077520000-0x00000000776AE000-memory.dmp

Filesize
1.6MB

Download
memory/4368-126-0x0000000077520000-0x00000000776AE000-memory.dmp

Filesize
1.6MB

Download
memory/4368-128-0x0000000077520000-0x00000000776AE000-memory.dmp

Filesize
1.6MB

Download
memory/4368-127-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4368-129-0x0000000077520000-0x00000000776AE000-memory.dmp

Filesize
1.6MB

Download
memory/4368-130-0x0000000077520000-0x00000000776AE000-memory.dmp

Filesize
1.6MB

Download
memory/4368-124-0x0000000077520000-0x00000000776AE000-memory.dmp

Filesize
1.6MB

Download
memory/4368-133-0x0000000077520000-0x00000000776AE000-memory.dmp

Filesize
1.6MB

Download
memory/4368-132-0x0000000077520000-0x00000000776AE000-memory.dmp

Filesize
1.6MB

Download
memory/4368-135-0x0000000077520000-0x00000000776AE000-memory.dmp

Filesize
1.6MB

Download
memory/4368-136-0x0000000077520000-0x00000000776AE000-memory.dmp

Filesize
1.6MB

Download
memory/4368-134-0x0000000077520000-0x00000000776AE000-memory.dmp

Filesize
1.6MB

Download
memory/4368-137-0x0000000077520000-0x00000000776AE000-memory.dmp

Filesize
1.6MB

Download
memory/4368-139-0x0000000077520000-0x00000000776AE000-memory.dmp

Filesize
1.6MB

Download
memory/4368-140-0x0000000077520000-0x00000000776AE000-memory.dmp

Filesize
1.6MB

Download
memory/4368-141-0x0000000077520000-0x00000000776AE000-memory.dmp

Filesize
1.6MB

Download
memory/4368-142-0x0000000077520000-0x00000000776AE000-memory.dmp

Filesize
1.6MB

Download
memory/4368-138-0x0000000077520000-0x00000000776AE000-memory.dmp

Filesize
1.6MB

Download
memory/4368-131-0x0000000077520000-0x00000000776AE000-memory.dmp

Filesize
1.6MB

Download
memory/4368-143-0x0000000077520000-0x00000000776AE000-memory.dmp

Filesize
1.6MB

Download
memory/4368-144-0x0000000077520000-0x00000000776AE000-memory.dmp

Filesize
1.6MB

Download
memory/4368-145-0x0000000077520000-0x00000000776AE000-memory.dmp

Filesize
1.6MB

Download
memory/4368-146-0x0000000077520000-0x00000000776AE000-memory.dmp

Filesize
1.6MB

Download
memory/4368-147-0x0000000077520000-0x00000000776AE000-memory.dmp

Filesize
1.6MB

Download
memory/4368-148-0x0000000077520000-0x00000000776AE000-memory.dmp

Filesize
1.6MB

Download
memory/4368-149-0x0000000077520000-0x00000000776AE000-memory.dmp

Filesize
1.6MB

Download
memory/4368-150-0x0000000077520000-0x00000000776AE000-memory.dmp

Filesize
1.6MB

Download
memory/4368-122-0x0000000077520000-0x00000000776AE000-memory.dmp

Filesize
1.6MB

Download
memory/4368-152-0x0000000077520000-0x00000000776AE000-memory.dmp

Filesize
1.6MB

Download
memory/4368-153-0x0000000077520000-0x00000000776AE000-memory.dmp

Filesize
1.6MB

Download
memory/4368-154-0x0000000077520000-0x00000000776AE000-memory.dmp

Filesize
1.6MB

Download
memory/4368-155-0x0000000077520000-0x00000000776AE000-memory.dmp

Filesize
1.6MB

Download
memory/4368-156-0x0000000077520000-0x00000000776AE000-memory.dmp

Filesize
1.6MB

Download
memory/4368-123-0x0000000077520000-0x00000000776AE000-memory.dmp

Filesize
1.6MB

Download
memory/4368-158-0x0000000077520000-0x00000000776AE000-memory.dmp

Filesize
1.6MB

Download
memory/4368-159-0x0000000077520000-0x00000000776AE000-memory.dmp

Filesize
1.6MB

Download
memory/4368-160-0x0000000077520000-0x00000000776AE000-memory.dmp

Filesize
1.6MB

Download
memory/4368-161-0x0000000077520000-0x00000000776AE000-memory.dmp

Filesize
1.6MB

Download
memory/4368-162-0x0000000077520000-0x00000000776AE000-memory.dmp

Filesize
1.6MB

Download
memory/4368-163-0x0000000077520000-0x00000000776AE000-memory.dmp

Filesize
1.6MB

Download
memory/4368-164-0x0000000077520000-0x00000000776AE000-memory.dmp

Filesize
1.6MB

Download
memory/4368-165-0x0000000077520000-0x00000000776AE000-memory.dmp

Filesize
1.6MB

Download
memory/4368-166-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4368-169-0x0000000077520000-0x00000000776AE000-memory.dmp

Filesize
1.6MB

Download
memory/4368-171-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4368-170-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4368-172-0x0000000077520000-0x00000000776AE000-memory.dmp

Filesize
1.6MB

Download
memory/4368-173-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4368-174-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4368-175-0x0000000077520000-0x00000000776AE000-memory.dmp

Filesize
1.6MB

Download
memory/4368-176-0x0000000077520000-0x00000000776AE000-memory.dmp

Filesize
1.6MB

Download
memory/4368-177-0x0000000077520000-0x00000000776AE000-memory.dmp

Filesize
1.6MB

Download
memory/4368-178-0x0000000077520000-0x00000000776AE000-memory.dmp

Filesize
1.6MB

Download
memory/4368-179-0x0000000077520000-0x00000000776AE000-memory.dmp

Filesize
1.6MB

Download
memory/4368-180-0x0000000077520000-0x00000000776AE000-memory.dmp

Filesize
1.6MB

Download
memory/4368-181-0x0000000077520000-0x00000000776AE000-memory.dmp

Filesize
1.6MB

Download
memory/4368-182-0x0000000077520000-0x00000000776AE000-memory.dmp

Filesize
1.6MB

Download
memory/4368-189-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4368-116-0x0000000077520000-0x00000000776AE000-memory.dmp

Filesize
1.6MB

Download
memory/4368-121-0x0000000077520000-0x00000000776AE000-memory.dmp

Filesize
1.6MB

Download
memory/4368-120-0x0000000077520000-0x00000000776AE000-memory.dmp

Filesize
1.6MB

Download
memory/4368-119-0x0000000077520000-0x00000000776AE000-memory.dmp

Filesize
1.6MB

Download
memory/4368-118-0x0000000077520000-0x00000000776AE000-memory.dmp

Filesize
1.6MB

Download
memory/4368-117-0x0000000077520000-0x00000000776AE000-memory.dmp

Filesize
1.6MB

Download
memory/4564-298-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4564-369-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4564-370-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download