637dc0e03237b728cbfd4ec9257a3fd176a93ed2d309a9ac3b08fd90af9f551a

Analysis

max time kernel
66s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
16/06/2023, 05:06

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General

Target

637dc0e03237b728cbfd4ec9257a3fd176a93ed2d309a9ac3b08fd90af9f551a.exe
Size

5.1MB
MD5

6c882c3901371da936e15c496589c564
SHA1

ae8c38772261991ddbb4efc071de8724ce37a68d
SHA256

637dc0e03237b728cbfd4ec9257a3fd176a93ed2d309a9ac3b08fd90af9f551a
SHA512

4bb7ae1eea62b8a5cfb22c9b4c247a592cf424289b996d434b936a84f36827817496aba9cd0d6b8e940e38de85479c453b0d4d07069af195908211c3c98df2a1
SSDEEP

98304:u2UIxsy+WInfKoBoqNo9gajzZGAEftQIPXNf4pdrmT5lNv77CSwiihPZ:u2V6yNIfKpqaCGomYCpRm3NHCSShB

Score

7^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
976	AppleWorkshop.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Software\Microsoft\Windows\CurrentVersion\Run	637dc0e03237b728cbfd4ec9257a3fd176a93ed2d309a9ac3b08fd90af9f551a.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SamsungElectronicsViewer = "C:\\ProgramData\\BiostarChecker\\AppleWorkshop.exe"	637dc0e03237b728cbfd4ec9257a3fd176a93ed2d309a9ac3b08fd90af9f551a.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

pid	Process
2696	637dc0e03237b728cbfd4ec9257a3fd176a93ed2d309a9ac3b08fd90af9f551a.exe
2696	637dc0e03237b728cbfd4ec9257a3fd176a93ed2d309a9ac3b08fd90af9f551a.exe
976	AppleWorkshop.exe
976	AppleWorkshop.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2696	637dc0e03237b728cbfd4ec9257a3fd176a93ed2d309a9ac3b08fd90af9f551a.exe
2696	637dc0e03237b728cbfd4ec9257a3fd176a93ed2d309a9ac3b08fd90af9f551a.exe
976	AppleWorkshop.exe
976	AppleWorkshop.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2696 wrote to memory of 976	2696	637dc0e03237b728cbfd4ec9257a3fd176a93ed2d309a9ac3b08fd90af9f551a.exe	84
PID 2696 wrote to memory of 976	2696	637dc0e03237b728cbfd4ec9257a3fd176a93ed2d309a9ac3b08fd90af9f551a.exe	84
PID 2696 wrote to memory of 976	2696	637dc0e03237b728cbfd4ec9257a3fd176a93ed2d309a9ac3b08fd90af9f551a.exe	84

C:\Users\Admin\AppData\Local\Temp\637dc0e03237b728cbfd4ec9257a3fd176a93ed2d309a9ac3b08fd90af9f551a.exe
"C:\Users\Admin\AppData\Local\Temp\637dc0e03237b728cbfd4ec9257a3fd176a93ed2d309a9ac3b08fd90af9f551a.exe"
1⤵
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2696
- C:\ProgramData\BiostarChecker\AppleWorkshop.exe
  C:\ProgramData\BiostarChecker\AppleWorkshop.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious behavior: EnumeratesProcesses
  PID:976

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\BiostarChecker\AppleWorkshop.exe

Filesize
5.1MB

MD5
6c882c3901371da936e15c496589c564

SHA1
ae8c38772261991ddbb4efc071de8724ce37a68d

SHA256
637dc0e03237b728cbfd4ec9257a3fd176a93ed2d309a9ac3b08fd90af9f551a

SHA512
4bb7ae1eea62b8a5cfb22c9b4c247a592cf424289b996d434b936a84f36827817496aba9cd0d6b8e940e38de85479c453b0d4d07069af195908211c3c98df2a1

Download Submit
C:\ProgramData\BiostarChecker\AppleWorkshop.exe

Filesize
5.1MB

MD5
6c882c3901371da936e15c496589c564

SHA1
ae8c38772261991ddbb4efc071de8724ce37a68d

SHA256
637dc0e03237b728cbfd4ec9257a3fd176a93ed2d309a9ac3b08fd90af9f551a

SHA512
4bb7ae1eea62b8a5cfb22c9b4c247a592cf424289b996d434b936a84f36827817496aba9cd0d6b8e940e38de85479c453b0d4d07069af195908211c3c98df2a1

Download Submit
memory/976-139-0x0000000000A90000-0x0000000000A91000-memory.dmp

Filesize
4KB

Download
memory/976-140-0x0000000000400000-0x000000000092D000-memory.dmp

Filesize
5.2MB

Download
memory/2696-133-0x0000000000940000-0x0000000000941000-memory.dmp

Filesize
4KB

Download
memory/2696-134-0x0000000000400000-0x000000000092D000-memory.dmp

Filesize
5.2MB

Download