gh0strat | b46a11998123c005e146c4baae1209d184626af3457ca8e26df2745c2d4963dd

Analysis

max time kernel
138s
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
19/09/2022, 03:07 UTC

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General

Target

b46a11998123c005e146c4baae1209d184626af3457ca8e26df2745c2d4963dd.exe
Size

375KB
MD5

f6253a3088d99bc7555336d9fd9d3b4a
SHA1

c67afbf58345161f022cf1ea11b68419c3586fa3
SHA256

b46a11998123c005e146c4baae1209d184626af3457ca8e26df2745c2d4963dd
SHA512

06a70a42e22f8b7cab28b9da873679dc29dcc8160b0d494d4b84c725f9346bfcbf38b720f0a1765be433dd7011cd86dd3bf3b5c813f3fd6fc676eac38bbe8415
SSDEEP

6144:ov5zQJVb5p72cHF1ybDFwekh212KhvwIb759QOaBjpaVRPu23E2rJmWjFc94:o4VOiF1WD7kE1dTYOi8V5u23zmWFy4

Score

10^/10

gh0strat rat upx

Malware Config

Signatures

Gh0st RAT payload 7 IoCs

resource	yara_rule
behavioral1/memory/1744-169-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/1744-171-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/1744-172-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/1744-175-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/3664-245-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4644-305-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/584-365-0x0000000010000000-0x0000000010362000-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
3664	SQLSerasi.exe
4644	SQLSerasi.exe
584	SQLSerasi.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1744-166-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/1744-169-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/1744-171-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/1744-172-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/1744-175-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/3664-245-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4644-305-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/584-365-0x0000000010000000-0x0000000010362000-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\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\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

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe	b46a11998123c005e146c4baae1209d184626af3457ca8e26df2745c2d4963dd.exe
File opened for modification	C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe	b46a11998123c005e146c4baae1209d184626af3457ca8e26df2745c2d4963dd.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\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 (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
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	SQLSerasi.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	1744	b46a11998123c005e146c4baae1209d184626af3457ca8e26df2745c2d4963dd.exe
Token: SeDebugPrivilege	3664	SQLSerasi.exe
Token: SeDebugPrivilege	4644	SQLSerasi.exe
Token: SeDebugPrivilege	4644	SQLSerasi.exe
Token: SeDebugPrivilege	584	SQLSerasi.exe
Token: SeDebugPrivilege	584	SQLSerasi.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1744 wrote to memory of 3664	1744	b46a11998123c005e146c4baae1209d184626af3457ca8e26df2745c2d4963dd.exe	66
PID 1744 wrote to memory of 3664	1744	b46a11998123c005e146c4baae1209d184626af3457ca8e26df2745c2d4963dd.exe	66
PID 1744 wrote to memory of 3664	1744	b46a11998123c005e146c4baae1209d184626af3457ca8e26df2745c2d4963dd.exe	66
PID 4644 wrote to memory of 584	4644	SQLSerasi.exe	68
PID 4644 wrote to memory of 584	4644	SQLSerasi.exe	68
PID 4644 wrote to memory of 584	4644	SQLSerasi.exe	68

C:\Users\Admin\AppData\Local\Temp\b46a11998123c005e146c4baae1209d184626af3457ca8e26df2745c2d4963dd.exe
"C:\Users\Admin\AppData\Local\Temp\b46a11998123c005e146c4baae1209d184626af3457ca8e26df2745c2d4963dd.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1744
- 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:3664

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:4644
- 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:584

Network

DNS

d.nxxxn.ga

SQLSerasi.exe

Remote address:

8.8.8.8:53

Request

d.nxxxn.ga

IN A

Response

d.nxxxn.ga

IN A

91.208.245.48
DNS

r.pengyou.com

SQLSerasi.exe

Remote address:

8.8.8.8:53

Request

r.pengyou.com

IN A

Response

r.pengyou.com

IN A

0.0.0.1

20.189.173.15:443

322 B
7
91.208.245.48:22251

d.nxxxn.ga

SQLSerasi.exe

156 B
3
67.27.153.126:80

322 B
7
91.208.245.48:22251

d.nxxxn.ga

SQLSerasi.exe

156 B
3

8.8.8.8:53

d.nxxxn.ga

dns

SQLSerasi.exe

56 B
72 B
1
1

DNS Request

d.nxxxn.ga

DNS Response

91.208.245.48
8.8.8.8:53

r.pengyou.com

dns

SQLSerasi.exe

59 B
75 B
1
1

DNS Request

r.pengyou.com

DNS Response

0.0.0.1

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
66e3df96766a263d249de25980c81e16

SHA1
9be1139024b27f552ab44a29dfe117ef140a8edf

SHA256
1e4d307be993d15c3fb12e778cfd010ccecc15cba0fbb557b935e32b697ce4e2

SHA512
b97dea0c0c449acac20887b7d5cfb71a1b91f2a00380ab24a7718b8418190659c3ae3ed7fb45bed5295f0f841faf76e62784d67d1a53d7450def784ce1a312c2

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

Filesize
39.4MB

MD5
66e3df96766a263d249de25980c81e16

SHA1
9be1139024b27f552ab44a29dfe117ef140a8edf

SHA256
1e4d307be993d15c3fb12e778cfd010ccecc15cba0fbb557b935e32b697ce4e2

SHA512
b97dea0c0c449acac20887b7d5cfb71a1b91f2a00380ab24a7718b8418190659c3ae3ed7fb45bed5295f0f841faf76e62784d67d1a53d7450def784ce1a312c2

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

Filesize
39.4MB

MD5
66e3df96766a263d249de25980c81e16

SHA1
9be1139024b27f552ab44a29dfe117ef140a8edf

SHA256
1e4d307be993d15c3fb12e778cfd010ccecc15cba0fbb557b935e32b697ce4e2

SHA512
b97dea0c0c449acac20887b7d5cfb71a1b91f2a00380ab24a7718b8418190659c3ae3ed7fb45bed5295f0f841faf76e62784d67d1a53d7450def784ce1a312c2

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

Filesize
39.4MB

MD5
66e3df96766a263d249de25980c81e16

SHA1
9be1139024b27f552ab44a29dfe117ef140a8edf

SHA256
1e4d307be993d15c3fb12e778cfd010ccecc15cba0fbb557b935e32b697ce4e2

SHA512
b97dea0c0c449acac20887b7d5cfb71a1b91f2a00380ab24a7718b8418190659c3ae3ed7fb45bed5295f0f841faf76e62784d67d1a53d7450def784ce1a312c2

Download Submit
memory/584-370-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/584-365-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/1744-151-0x00000000770F0000-0x000000007727E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-155-0x00000000770F0000-0x000000007727E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-120-0x00000000770F0000-0x000000007727E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-121-0x00000000770F0000-0x000000007727E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-122-0x00000000770F0000-0x000000007727E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-123-0x00000000770F0000-0x000000007727E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-124-0x00000000770F0000-0x000000007727E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-125-0x00000000770F0000-0x000000007727E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-126-0x00000000770F0000-0x000000007727E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-156-0x00000000770F0000-0x000000007727E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-129-0x00000000770F0000-0x000000007727E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-128-0x00000000770F0000-0x000000007727E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-130-0x00000000770F0000-0x000000007727E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-131-0x00000000770F0000-0x000000007727E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-132-0x00000000770F0000-0x000000007727E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-133-0x00000000770F0000-0x000000007727E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-134-0x00000000770F0000-0x000000007727E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-135-0x00000000770F0000-0x000000007727E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-136-0x00000000770F0000-0x000000007727E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-137-0x00000000770F0000-0x000000007727E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-138-0x00000000770F0000-0x000000007727E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-139-0x00000000770F0000-0x000000007727E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-140-0x00000000770F0000-0x000000007727E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-141-0x00000000770F0000-0x000000007727E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-142-0x00000000770F0000-0x000000007727E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-143-0x00000000770F0000-0x000000007727E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-144-0x00000000770F0000-0x000000007727E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-145-0x00000000770F0000-0x000000007727E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-146-0x00000000770F0000-0x000000007727E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-148-0x00000000770F0000-0x000000007727E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-147-0x00000000770F0000-0x000000007727E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-149-0x00000000770F0000-0x000000007727E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-150-0x00000000770F0000-0x000000007727E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-118-0x00000000770F0000-0x000000007727E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-152-0x00000000770F0000-0x000000007727E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-153-0x00000000770F0000-0x000000007727E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-119-0x00000000770F0000-0x000000007727E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-154-0x00000000770F0000-0x000000007727E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-127-0x00000000770F0000-0x000000007727E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-157-0x00000000770F0000-0x000000007727E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-158-0x00000000770F0000-0x000000007727E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-159-0x00000000770F0000-0x000000007727E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-160-0x00000000770F0000-0x000000007727E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-161-0x00000000770F0000-0x000000007727E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-162-0x00000000770F0000-0x000000007727E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-163-0x00000000770F0000-0x000000007727E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-164-0x00000000770F0000-0x000000007727E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-165-0x00000000770F0000-0x000000007727E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-166-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/1744-169-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/1744-170-0x00000000770F0000-0x000000007727E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-171-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/1744-172-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/1744-173-0x00000000770F0000-0x000000007727E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-174-0x00000000770F0000-0x000000007727E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-175-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/1744-176-0x00000000770F0000-0x000000007727E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-177-0x00000000770F0000-0x000000007727E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-178-0x00000000770F0000-0x000000007727E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-179-0x00000000770F0000-0x000000007727E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-180-0x00000000770F0000-0x000000007727E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-181-0x00000000770F0000-0x000000007727E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-182-0x00000000770F0000-0x000000007727E000-memory.dmp

Filesize
1.6MB

Download
memory/1744-185-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/1744-190-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/1744-116-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/1744-117-0x00000000770F0000-0x000000007727E000-memory.dmp

Filesize
1.6MB

Download
memory/3664-246-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/3664-300-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/3664-245-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4644-305-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4644-369-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download