gh0strat | 759859709a2b91ee500201d9616f3a5d38c9c0e4313aa81c18ed125225a5540b

Analysis

max time kernel
130s
max time network
151s
platform
windows10-1703_x64
resource
win10-20220812-en
resource tags

arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
submitted
11/10/2022, 20:19

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General

Target

759859709a2b91ee500201d9616f3a5d38c9c0e4313aa81c18ed125225a5540b.exe
Size

375KB
MD5

29aa8a4d1d634461eb3ebf3227194c87
SHA1

4561d01e687a84e5cdb2e85cc5ff6e2bbd686c20
SHA256

759859709a2b91ee500201d9616f3a5d38c9c0e4313aa81c18ed125225a5540b
SHA512

689628b09de3522b61bb7295fd30ad31748c96f3b0d5d7f20960bf54f9e09fb2466306472495c77fd5a81d05c04493203208e5b2bf1e539822dcf5a55714e5f9
SSDEEP

6144:1v5zQJVb5p72cHF1ybDFwekh212KhvwIb759QOaBjpaVRPu23E2rJmWjFc94:14VOiF1WD7kE1dTYOi8V5u23zmWFy4

Score

10^/10

gh0strat rat upx

Malware Config

Signatures

Gh0st RAT payload 8 IoCs

resource	yara_rule
behavioral1/memory/2584-172-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/2584-173-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/2584-174-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/380-245-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/3360-299-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4260-357-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/3360-386-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4260-388-0x0000000010000000-0x0000000010362000-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
380	SQLSerasi.exe
3360	SQLSerasi.exe
4260	SQLSerasi.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2584-168-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/2584-172-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/2584-173-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/2584-174-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/380-245-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/3360-299-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4260-357-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/3360-386-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4260-388-0x0000000010000000-0x0000000010362000-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)	\??\E:	SQLSerasi.exe
File opened (read-only)	\??\J:	SQLSerasi.exe
File opened (read-only)	\??\K:	SQLSerasi.exe
File opened (read-only)	\??\O:	SQLSerasi.exe
File opened (read-only)	\??\P:	SQLSerasi.exe
File opened (read-only)	\??\R:	SQLSerasi.exe
File opened (read-only)	\??\V:	SQLSerasi.exe
File opened (read-only)	\??\B:	SQLSerasi.exe
File opened (read-only)	\??\Y:	SQLSerasi.exe
File opened (read-only)	\??\X:	SQLSerasi.exe
File opened (read-only)	\??\M:	SQLSerasi.exe
File opened (read-only)	\??\N:	SQLSerasi.exe
File opened (read-only)	\??\T:	SQLSerasi.exe
File opened (read-only)	\??\H:	SQLSerasi.exe
File opened (read-only)	\??\U:	SQLSerasi.exe
File opened (read-only)	\??\Z:	SQLSerasi.exe
File opened (read-only)	\??\Q:	SQLSerasi.exe
File opened (read-only)	\??\G:	SQLSerasi.exe
File opened (read-only)	\??\I:	SQLSerasi.exe
File opened (read-only)	\??\L:	SQLSerasi.exe
File opened (read-only)	\??\S:	SQLSerasi.exe
File opened (read-only)	\??\W:	SQLSerasi.exe
File opened (read-only)	\??\F:	SQLSerasi.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe	759859709a2b91ee500201d9616f3a5d38c9c0e4313aa81c18ed125225a5540b.exe
File opened for modification	C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe	759859709a2b91ee500201d9616f3a5d38c9c0e4313aa81c18ed125225a5540b.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\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
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	SQLSerasi.exe

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft	SQLSerasi.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie	SQLSerasi.exe
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

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4260	SQLSerasi.exe
4260	SQLSerasi.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	2584	759859709a2b91ee500201d9616f3a5d38c9c0e4313aa81c18ed125225a5540b.exe
Token: SeDebugPrivilege	380	SQLSerasi.exe
Token: SeDebugPrivilege	3360	SQLSerasi.exe
Token: SeDebugPrivilege	3360	SQLSerasi.exe
Token: SeDebugPrivilege	4260	SQLSerasi.exe
Token: SeDebugPrivilege	4260	SQLSerasi.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2584 wrote to memory of 380	2584	759859709a2b91ee500201d9616f3a5d38c9c0e4313aa81c18ed125225a5540b.exe	66
PID 2584 wrote to memory of 380	2584	759859709a2b91ee500201d9616f3a5d38c9c0e4313aa81c18ed125225a5540b.exe	66
PID 2584 wrote to memory of 380	2584	759859709a2b91ee500201d9616f3a5d38c9c0e4313aa81c18ed125225a5540b.exe	66
PID 3360 wrote to memory of 4260	3360	SQLSerasi.exe	68
PID 3360 wrote to memory of 4260	3360	SQLSerasi.exe	68
PID 3360 wrote to memory of 4260	3360	SQLSerasi.exe	68

C:\Users\Admin\AppData\Local\Temp\759859709a2b91ee500201d9616f3a5d38c9c0e4313aa81c18ed125225a5540b.exe
"C:\Users\Admin\AppData\Local\Temp\759859709a2b91ee500201d9616f3a5d38c9c0e4313aa81c18ed125225a5540b.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2584
- 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:380

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:3360
- 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:4260

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
325d7e5e8e2500b60bacfe7ee5c4a837

SHA1
223ea5a03c2c9c48dafffdd1a53ee553e6a38ce6

SHA256
e94bfd692c5e0910fb3dc0ac5397c7871571ac22197be2fc25426e70e93d4eea

SHA512
ffe38e0af28aef436d9cace1398d034fc4030541a63e21b8fa258a61eb321f2969163abb44cb1b5ab2a0949c2f7c0bb8d0ec1fbdc71dc4bea7493d34f479ce74

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

Filesize
39.4MB

MD5
325d7e5e8e2500b60bacfe7ee5c4a837

SHA1
223ea5a03c2c9c48dafffdd1a53ee553e6a38ce6

SHA256
e94bfd692c5e0910fb3dc0ac5397c7871571ac22197be2fc25426e70e93d4eea

SHA512
ffe38e0af28aef436d9cace1398d034fc4030541a63e21b8fa258a61eb321f2969163abb44cb1b5ab2a0949c2f7c0bb8d0ec1fbdc71dc4bea7493d34f479ce74

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

Filesize
39.4MB

MD5
325d7e5e8e2500b60bacfe7ee5c4a837

SHA1
223ea5a03c2c9c48dafffdd1a53ee553e6a38ce6

SHA256
e94bfd692c5e0910fb3dc0ac5397c7871571ac22197be2fc25426e70e93d4eea

SHA512
ffe38e0af28aef436d9cace1398d034fc4030541a63e21b8fa258a61eb321f2969163abb44cb1b5ab2a0949c2f7c0bb8d0ec1fbdc71dc4bea7493d34f479ce74

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

Filesize
39.4MB

MD5
325d7e5e8e2500b60bacfe7ee5c4a837

SHA1
223ea5a03c2c9c48dafffdd1a53ee553e6a38ce6

SHA256
e94bfd692c5e0910fb3dc0ac5397c7871571ac22197be2fc25426e70e93d4eea

SHA512
ffe38e0af28aef436d9cace1398d034fc4030541a63e21b8fa258a61eb321f2969163abb44cb1b5ab2a0949c2f7c0bb8d0ec1fbdc71dc4bea7493d34f479ce74

Download Submit
memory/380-245-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/380-300-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/2584-152-0x0000000077A40000-0x0000000077BCE000-memory.dmp

Filesize
1.6MB

Download
memory/2584-157-0x0000000077A40000-0x0000000077BCE000-memory.dmp

Filesize
1.6MB

Download
memory/2584-122-0x0000000077A40000-0x0000000077BCE000-memory.dmp

Filesize
1.6MB

Download
memory/2584-121-0x0000000077A40000-0x0000000077BCE000-memory.dmp

Filesize
1.6MB

Download
memory/2584-123-0x0000000077A40000-0x0000000077BCE000-memory.dmp

Filesize
1.6MB

Download
memory/2584-124-0x0000000077A40000-0x0000000077BCE000-memory.dmp

Filesize
1.6MB

Download
memory/2584-125-0x0000000077A40000-0x0000000077BCE000-memory.dmp

Filesize
1.6MB

Download
memory/2584-126-0x0000000077A40000-0x0000000077BCE000-memory.dmp

Filesize
1.6MB

Download
memory/2584-127-0x0000000077A40000-0x0000000077BCE000-memory.dmp

Filesize
1.6MB

Download
memory/2584-128-0x0000000077A40000-0x0000000077BCE000-memory.dmp

Filesize
1.6MB

Download
memory/2584-129-0x0000000077A40000-0x0000000077BCE000-memory.dmp

Filesize
1.6MB

Download
memory/2584-130-0x0000000077A40000-0x0000000077BCE000-memory.dmp

Filesize
1.6MB

Download
memory/2584-131-0x0000000077A40000-0x0000000077BCE000-memory.dmp

Filesize
1.6MB

Download
memory/2584-132-0x0000000077A40000-0x0000000077BCE000-memory.dmp

Filesize
1.6MB

Download
memory/2584-133-0x0000000077A40000-0x0000000077BCE000-memory.dmp

Filesize
1.6MB

Download
memory/2584-135-0x0000000077A40000-0x0000000077BCE000-memory.dmp

Filesize
1.6MB

Download
memory/2584-134-0x0000000077A40000-0x0000000077BCE000-memory.dmp

Filesize
1.6MB

Download
memory/2584-136-0x0000000077A40000-0x0000000077BCE000-memory.dmp

Filesize
1.6MB

Download
memory/2584-137-0x0000000077A40000-0x0000000077BCE000-memory.dmp

Filesize
1.6MB

Download
memory/2584-138-0x0000000077A40000-0x0000000077BCE000-memory.dmp

Filesize
1.6MB

Download
memory/2584-139-0x0000000077A40000-0x0000000077BCE000-memory.dmp

Filesize
1.6MB

Download
memory/2584-140-0x0000000077A40000-0x0000000077BCE000-memory.dmp

Filesize
1.6MB

Download
memory/2584-141-0x0000000077A40000-0x0000000077BCE000-memory.dmp

Filesize
1.6MB

Download
memory/2584-142-0x0000000077A40000-0x0000000077BCE000-memory.dmp

Filesize
1.6MB

Download
memory/2584-143-0x0000000077A40000-0x0000000077BCE000-memory.dmp

Filesize
1.6MB

Download
memory/2584-144-0x0000000077A40000-0x0000000077BCE000-memory.dmp

Filesize
1.6MB

Download
memory/2584-145-0x0000000077A40000-0x0000000077BCE000-memory.dmp

Filesize
1.6MB

Download
memory/2584-156-0x0000000077A40000-0x0000000077BCE000-memory.dmp

Filesize
1.6MB

Download
memory/2584-147-0x0000000077A40000-0x0000000077BCE000-memory.dmp

Filesize
1.6MB

Download
memory/2584-148-0x0000000077A40000-0x0000000077BCE000-memory.dmp

Filesize
1.6MB

Download
memory/2584-149-0x0000000077A40000-0x0000000077BCE000-memory.dmp

Filesize
1.6MB

Download
memory/2584-150-0x0000000077A40000-0x0000000077BCE000-memory.dmp

Filesize
1.6MB

Download
memory/2584-151-0x0000000077A40000-0x0000000077BCE000-memory.dmp

Filesize
1.6MB

Download
memory/2584-119-0x0000000077A40000-0x0000000077BCE000-memory.dmp

Filesize
1.6MB

Download
memory/2584-153-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/2584-154-0x0000000077A40000-0x0000000077BCE000-memory.dmp

Filesize
1.6MB

Download
memory/2584-120-0x0000000077A40000-0x0000000077BCE000-memory.dmp

Filesize
1.6MB

Download
memory/2584-155-0x0000000077A40000-0x0000000077BCE000-memory.dmp

Filesize
1.6MB

Download
memory/2584-146-0x0000000077A40000-0x0000000077BCE000-memory.dmp

Filesize
1.6MB

Download
memory/2584-158-0x0000000077A40000-0x0000000077BCE000-memory.dmp

Filesize
1.6MB

Download
memory/2584-159-0x0000000077A40000-0x0000000077BCE000-memory.dmp

Filesize
1.6MB

Download
memory/2584-160-0x0000000077A40000-0x0000000077BCE000-memory.dmp

Filesize
1.6MB

Download
memory/2584-162-0x0000000077A40000-0x0000000077BCE000-memory.dmp

Filesize
1.6MB

Download
memory/2584-161-0x0000000077A40000-0x0000000077BCE000-memory.dmp

Filesize
1.6MB

Download
memory/2584-163-0x0000000077A40000-0x0000000077BCE000-memory.dmp

Filesize
1.6MB

Download
memory/2584-164-0x0000000077A40000-0x0000000077BCE000-memory.dmp

Filesize
1.6MB

Download
memory/2584-165-0x0000000077A40000-0x0000000077BCE000-memory.dmp

Filesize
1.6MB

Download
memory/2584-166-0x0000000077A40000-0x0000000077BCE000-memory.dmp

Filesize
1.6MB

Download
memory/2584-167-0x0000000077A40000-0x0000000077BCE000-memory.dmp

Filesize
1.6MB

Download
memory/2584-168-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/2584-171-0x0000000077A40000-0x0000000077BCE000-memory.dmp

Filesize
1.6MB

Download
memory/2584-172-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/2584-173-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/2584-174-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/2584-175-0x0000000077A40000-0x0000000077BCE000-memory.dmp

Filesize
1.6MB

Download
memory/2584-176-0x0000000077A40000-0x0000000077BCE000-memory.dmp

Filesize
1.6MB

Download
memory/2584-177-0x0000000077A40000-0x0000000077BCE000-memory.dmp

Filesize
1.6MB

Download
memory/2584-178-0x0000000077A40000-0x0000000077BCE000-memory.dmp

Filesize
1.6MB

Download
memory/2584-179-0x0000000077A40000-0x0000000077BCE000-memory.dmp

Filesize
1.6MB

Download
memory/2584-180-0x0000000077A40000-0x0000000077BCE000-memory.dmp

Filesize
1.6MB

Download
memory/2584-181-0x0000000077A40000-0x0000000077BCE000-memory.dmp

Filesize
1.6MB

Download
memory/2584-182-0x0000000077A40000-0x0000000077BCE000-memory.dmp

Filesize
1.6MB

Download
memory/2584-183-0x0000000077A40000-0x0000000077BCE000-memory.dmp

Filesize
1.6MB

Download
memory/2584-194-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/2584-117-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/2584-118-0x0000000077A40000-0x0000000077BCE000-memory.dmp

Filesize
1.6MB

Download
memory/3360-299-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/3360-385-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/3360-386-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4260-357-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4260-379-0x0000000073A00000-0x0000000073A3A000-memory.dmp

Filesize
232KB

Download
memory/4260-387-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4260-388-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4260-389-0x0000000073A00000-0x0000000073A3A000-memory.dmp

Filesize
232KB

Download