gh0strat | 5be57be8233c219e344d77ad32d3c91f2069e9bb6a2b266e6b1edf7ca1c909d2

Analysis

max time kernel
108s
max time network
141s
platform
windows10-1703_x64
resource
win10-20220901-en
resource tags

arch:x64arch:x86image:win10-20220901-enlocale:en-usos:windows10-1703-x64system
submitted
23/09/2022, 10:01

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General

Target

5be57be8233c219e344d77ad32d3c91f2069e9bb6a2b266e6b1edf7ca1c909d2.exe
Size

375KB
MD5

9453c9287044f10700ba757f8342de8b
SHA1

c5a2205b446eb297c14e315e50da9bbe9bcf96b3
SHA256

5be57be8233c219e344d77ad32d3c91f2069e9bb6a2b266e6b1edf7ca1c909d2
SHA512

640aa8c40b2b4dec22af403ab2bc9672015e4c8e5a55af2980b48b95f3a174efa1f8ca4101ffbc4941d075e8dd021bc7702df26de3cd086c40674ded3b5ee2d0
SSDEEP

6144:kv5zQJVb5p72cHF1ybDFwekh212KhvwIb759QOaBjpaVRPu23E2rJmWjFc94:k4VOiF1WD7kE1dTYOi8V5u23zmWFy4

Score

10^/10

gh0strat rat upx

Malware Config

Signatures

Gh0st RAT payload 10 IoCs

resource	yara_rule
behavioral1/memory/3316-172-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/3316-171-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/3316-174-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/3316-175-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/3548-246-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/3548-245-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/5108-302-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/5108-304-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4600-361-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4600-389-0x0000000010000000-0x0000000010362000-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
3548	SQLSerasi.exe
5108	SQLSerasi.exe
4600	SQLSerasi.exe

UPX packed file 11 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3316-167-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/3316-172-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/3316-171-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/3316-174-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/3316-175-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/3548-246-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/3548-245-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/5108-302-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/5108-304-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4600-361-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4600-389-0x0000000010000000-0x0000000010362000-memory.dmp	upx

Enumerates connected drives 3 TTPs 23 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\T:	SQLSerasi.exe
File opened (read-only)	\??\V:	SQLSerasi.exe
File opened (read-only)	\??\F:	SQLSerasi.exe
File opened (read-only)	\??\H:	SQLSerasi.exe
File opened (read-only)	\??\J:	SQLSerasi.exe
File opened (read-only)	\??\P:	SQLSerasi.exe
File opened (read-only)	\??\Z:	SQLSerasi.exe
File opened (read-only)	\??\K:	SQLSerasi.exe
File opened (read-only)	\??\M:	SQLSerasi.exe
File opened (read-only)	\??\R:	SQLSerasi.exe
File opened (read-only)	\??\X:	SQLSerasi.exe
File opened (read-only)	\??\O:	SQLSerasi.exe
File opened (read-only)	\??\W:	SQLSerasi.exe
File opened (read-only)	\??\B:	SQLSerasi.exe
File opened (read-only)	\??\E:	SQLSerasi.exe
File opened (read-only)	\??\I:	SQLSerasi.exe
File opened (read-only)	\??\N:	SQLSerasi.exe
File opened (read-only)	\??\U:	SQLSerasi.exe
File opened (read-only)	\??\Y:	SQLSerasi.exe
File opened (read-only)	\??\G:	SQLSerasi.exe
File opened (read-only)	\??\L:	SQLSerasi.exe
File opened (read-only)	\??\Q:	SQLSerasi.exe
File opened (read-only)	\??\S:	SQLSerasi.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe	5be57be8233c219e344d77ad32d3c91f2069e9bb6a2b266e6b1edf7ca1c909d2.exe
File opened for modification	C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe	5be57be8233c219e344d77ad32d3c91f2069e9bb6a2b266e6b1edf7ca1c909d2.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 6 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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	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 5 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum\Version = "7"	SQLSerasi.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum	SQLSerasi.exe
Key created	\REGISTRY\USER\.DEFAULT\Software	SQLSerasi.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft	SQLSerasi.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie	SQLSerasi.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4600	SQLSerasi.exe
4600	SQLSerasi.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	3316	5be57be8233c219e344d77ad32d3c91f2069e9bb6a2b266e6b1edf7ca1c909d2.exe
Token: SeDebugPrivilege	3548	SQLSerasi.exe
Token: SeDebugPrivilege	5108	SQLSerasi.exe
Token: SeDebugPrivilege	5108	SQLSerasi.exe
Token: SeDebugPrivilege	4600	SQLSerasi.exe
Token: SeDebugPrivilege	4600	SQLSerasi.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3316 wrote to memory of 3548	3316	5be57be8233c219e344d77ad32d3c91f2069e9bb6a2b266e6b1edf7ca1c909d2.exe	66
PID 3316 wrote to memory of 3548	3316	5be57be8233c219e344d77ad32d3c91f2069e9bb6a2b266e6b1edf7ca1c909d2.exe	66
PID 3316 wrote to memory of 3548	3316	5be57be8233c219e344d77ad32d3c91f2069e9bb6a2b266e6b1edf7ca1c909d2.exe	66
PID 5108 wrote to memory of 4600	5108	SQLSerasi.exe	68
PID 5108 wrote to memory of 4600	5108	SQLSerasi.exe	68
PID 5108 wrote to memory of 4600	5108	SQLSerasi.exe	68

C:\Users\Admin\AppData\Local\Temp\5be57be8233c219e344d77ad32d3c91f2069e9bb6a2b266e6b1edf7ca1c909d2.exe
"C:\Users\Admin\AppData\Local\Temp\5be57be8233c219e344d77ad32d3c91f2069e9bb6a2b266e6b1edf7ca1c909d2.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3316
- 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:3548

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:5108
- C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe
  "C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe"
  2⤵
  - Executes dropped EXE
  - Enumerates connected drives
  - Checks processor information in registry
  - Modifies data under HKEY_USERS
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4600

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

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
8ccc07d6327faaf584246fa5a14e0a85

SHA1
4b5dbc1037db2d3c4c911119fb39a9d07a3a7926

SHA256
27850389b73b9bf088d6a6246a52244961d36fd66b0d77dc2b845828bdcfb07b

SHA512
4915231d110fc65575a3ce62a2fa4f9f198f64a3c1939a2e38b867d057717c9d2775ab84801e34f1af1394a7e3ec8868feca1ad48e687df5444aa973f784d864

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

Filesize
39.4MB

MD5
8ccc07d6327faaf584246fa5a14e0a85

SHA1
4b5dbc1037db2d3c4c911119fb39a9d07a3a7926

SHA256
27850389b73b9bf088d6a6246a52244961d36fd66b0d77dc2b845828bdcfb07b

SHA512
4915231d110fc65575a3ce62a2fa4f9f198f64a3c1939a2e38b867d057717c9d2775ab84801e34f1af1394a7e3ec8868feca1ad48e687df5444aa973f784d864

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

Filesize
39.4MB

MD5
8ccc07d6327faaf584246fa5a14e0a85

SHA1
4b5dbc1037db2d3c4c911119fb39a9d07a3a7926

SHA256
27850389b73b9bf088d6a6246a52244961d36fd66b0d77dc2b845828bdcfb07b

SHA512
4915231d110fc65575a3ce62a2fa4f9f198f64a3c1939a2e38b867d057717c9d2775ab84801e34f1af1394a7e3ec8868feca1ad48e687df5444aa973f784d864

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

Filesize
39.4MB

MD5
8ccc07d6327faaf584246fa5a14e0a85

SHA1
4b5dbc1037db2d3c4c911119fb39a9d07a3a7926

SHA256
27850389b73b9bf088d6a6246a52244961d36fd66b0d77dc2b845828bdcfb07b

SHA512
4915231d110fc65575a3ce62a2fa4f9f198f64a3c1939a2e38b867d057717c9d2775ab84801e34f1af1394a7e3ec8868feca1ad48e687df5444aa973f784d864

Download Submit
memory/3316-153-0x00000000771E0000-0x000000007736E000-memory.dmp

Filesize
1.6MB

Download
memory/3316-145-0x00000000771E0000-0x000000007736E000-memory.dmp

Filesize
1.6MB

Download
memory/3316-119-0x00000000771E0000-0x000000007736E000-memory.dmp

Filesize
1.6MB

Download
memory/3316-120-0x00000000771E0000-0x000000007736E000-memory.dmp

Filesize
1.6MB

Download
memory/3316-121-0x00000000771E0000-0x000000007736E000-memory.dmp

Filesize
1.6MB

Download
memory/3316-122-0x00000000771E0000-0x000000007736E000-memory.dmp

Filesize
1.6MB

Download
memory/3316-123-0x00000000771E0000-0x000000007736E000-memory.dmp

Filesize
1.6MB

Download
memory/3316-124-0x00000000771E0000-0x000000007736E000-memory.dmp

Filesize
1.6MB

Download
memory/3316-125-0x00000000771E0000-0x000000007736E000-memory.dmp

Filesize
1.6MB

Download
memory/3316-126-0x00000000771E0000-0x000000007736E000-memory.dmp

Filesize
1.6MB

Download
memory/3316-127-0x00000000771E0000-0x000000007736E000-memory.dmp

Filesize
1.6MB

Download
memory/3316-130-0x00000000771E0000-0x000000007736E000-memory.dmp

Filesize
1.6MB

Download
memory/3316-128-0x00000000771E0000-0x000000007736E000-memory.dmp

Filesize
1.6MB

Download
memory/3316-129-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/3316-131-0x00000000771E0000-0x000000007736E000-memory.dmp

Filesize
1.6MB

Download
memory/3316-132-0x00000000771E0000-0x000000007736E000-memory.dmp

Filesize
1.6MB

Download
memory/3316-133-0x00000000771E0000-0x000000007736E000-memory.dmp

Filesize
1.6MB

Download
memory/3316-134-0x00000000771E0000-0x000000007736E000-memory.dmp

Filesize
1.6MB

Download
memory/3316-135-0x00000000771E0000-0x000000007736E000-memory.dmp

Filesize
1.6MB

Download
memory/3316-136-0x00000000771E0000-0x000000007736E000-memory.dmp

Filesize
1.6MB

Download
memory/3316-138-0x00000000771E0000-0x000000007736E000-memory.dmp

Filesize
1.6MB

Download
memory/3316-139-0x00000000771E0000-0x000000007736E000-memory.dmp

Filesize
1.6MB

Download
memory/3316-140-0x00000000771E0000-0x000000007736E000-memory.dmp

Filesize
1.6MB

Download
memory/3316-137-0x00000000771E0000-0x000000007736E000-memory.dmp

Filesize
1.6MB

Download
memory/3316-141-0x00000000771E0000-0x000000007736E000-memory.dmp

Filesize
1.6MB

Download
memory/3316-142-0x00000000771E0000-0x000000007736E000-memory.dmp

Filesize
1.6MB

Download
memory/3316-143-0x00000000771E0000-0x000000007736E000-memory.dmp

Filesize
1.6MB

Download
memory/3316-144-0x00000000771E0000-0x000000007736E000-memory.dmp

Filesize
1.6MB

Download
memory/3316-156-0x00000000771E0000-0x000000007736E000-memory.dmp

Filesize
1.6MB

Download
memory/3316-146-0x00000000771E0000-0x000000007736E000-memory.dmp

Filesize
1.6MB

Download
memory/3316-147-0x00000000771E0000-0x000000007736E000-memory.dmp

Filesize
1.6MB

Download
memory/3316-148-0x00000000771E0000-0x000000007736E000-memory.dmp

Filesize
1.6MB

Download
memory/3316-149-0x00000000771E0000-0x000000007736E000-memory.dmp

Filesize
1.6MB

Download
memory/3316-150-0x00000000771E0000-0x000000007736E000-memory.dmp

Filesize
1.6MB

Download
memory/3316-151-0x00000000771E0000-0x000000007736E000-memory.dmp

Filesize
1.6MB

Download
memory/3316-152-0x00000000771E0000-0x000000007736E000-memory.dmp

Filesize
1.6MB

Download
memory/3316-117-0x00000000771E0000-0x000000007736E000-memory.dmp

Filesize
1.6MB

Download
memory/3316-154-0x00000000771E0000-0x000000007736E000-memory.dmp

Filesize
1.6MB

Download
memory/3316-118-0x00000000771E0000-0x000000007736E000-memory.dmp

Filesize
1.6MB

Download
memory/3316-155-0x00000000771E0000-0x000000007736E000-memory.dmp

Filesize
1.6MB

Download
memory/3316-182-0x00000000771E0000-0x000000007736E000-memory.dmp

Filesize
1.6MB

Download
memory/3316-158-0x00000000771E0000-0x000000007736E000-memory.dmp

Filesize
1.6MB

Download
memory/3316-159-0x00000000771E0000-0x000000007736E000-memory.dmp

Filesize
1.6MB

Download
memory/3316-160-0x00000000771E0000-0x000000007736E000-memory.dmp

Filesize
1.6MB

Download
memory/3316-161-0x00000000771E0000-0x000000007736E000-memory.dmp

Filesize
1.6MB

Download
memory/3316-162-0x00000000771E0000-0x000000007736E000-memory.dmp

Filesize
1.6MB

Download
memory/3316-163-0x00000000771E0000-0x000000007736E000-memory.dmp

Filesize
1.6MB

Download
memory/3316-164-0x00000000771E0000-0x000000007736E000-memory.dmp

Filesize
1.6MB

Download
memory/3316-165-0x00000000771E0000-0x000000007736E000-memory.dmp

Filesize
1.6MB

Download
memory/3316-166-0x00000000771E0000-0x000000007736E000-memory.dmp

Filesize
1.6MB

Download
memory/3316-167-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/3316-170-0x00000000771E0000-0x000000007736E000-memory.dmp

Filesize
1.6MB

Download
memory/3316-172-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/3316-171-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/3316-174-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/3316-173-0x00000000771E0000-0x000000007736E000-memory.dmp

Filesize
1.6MB

Download
memory/3316-175-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/3316-176-0x00000000771E0000-0x000000007736E000-memory.dmp

Filesize
1.6MB

Download
memory/3316-177-0x00000000771E0000-0x000000007736E000-memory.dmp

Filesize
1.6MB

Download
memory/3316-178-0x00000000771E0000-0x000000007736E000-memory.dmp

Filesize
1.6MB

Download
memory/3316-179-0x00000000771E0000-0x000000007736E000-memory.dmp

Filesize
1.6MB

Download
memory/3316-180-0x00000000771E0000-0x000000007736E000-memory.dmp

Filesize
1.6MB

Download
memory/3316-181-0x00000000771E0000-0x000000007736E000-memory.dmp

Filesize
1.6MB

Download
memory/3316-157-0x00000000771E0000-0x000000007736E000-memory.dmp

Filesize
1.6MB

Download
memory/3316-183-0x00000000771E0000-0x000000007736E000-memory.dmp

Filesize
1.6MB

Download
memory/3316-189-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/3548-246-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/3548-245-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/3548-301-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4600-389-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4600-361-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4600-384-0x00000000731A0000-0x00000000731DA000-memory.dmp

Filesize
232KB

Download
memory/4600-388-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4600-390-0x00000000731A0000-0x00000000731DA000-memory.dmp

Filesize
232KB

Download
memory/5108-302-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/5108-387-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/5108-304-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download