8fae115270d6915f528b818c9085bc0ec1c97c93c8c51f62b05b54cbaa8b3db2

Analysis

max time kernel
161s
max time network
164s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
06/12/2022, 00:56

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General

Target

8fae115270d6915f528b818c9085bc0ec1c97c93c8c51f62b05b54cbaa8b3db2.exe
Size

286KB
MD5

244d1fbc6fd418449e5a63c641e340dc
SHA1

1c162f80ddd6787d03fd33d18d77a520734aedb0
SHA256

8fae115270d6915f528b818c9085bc0ec1c97c93c8c51f62b05b54cbaa8b3db2
SHA512

9906e22f0f240be59e1c65d8259466fc4ffb229dbb45aae93740c9ba8e8fe752971971259ecbf95dcf864a4155c9c132f4a4e9caf71f101c33f45cdd4841f714
SSDEEP

3072:IAzoG5LG8kk+MxB4c7Cje76y642DgSrojEtOZOcyv9IiwjC:IAzoUGTwxe3eC8QtqOaN

Score

10^/10

evasion persistence upx

Malware Config

Signatures

Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "1"	servise.exe

Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	servise.exe

Disables Task Manager via registry modification
evasion

Executes dropped EXE 1 IoCs

pid	Process
4052	servise.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1872-133-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral2/memory/1872-135-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral2/files/0x0008000000022e51-138.dat	upx
behavioral2/files/0x0008000000022e51-139.dat	upx
behavioral2/memory/4052-140-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral2/memory/4052-141-0x0000000000400000-0x0000000000450000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\NvCplDeamon = "C:\\WINDOWS\\system\\servise.exe"	8fae115270d6915f528b818c9085bc0ec1c97c93c8c51f62b05b54cbaa8b3db2.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\NvCplDeamon = "C:\\WINDOWS\\system\\servise.exe"	servise.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\WINDOWS\SysWOW64\d.bat	8fae115270d6915f528b818c9085bc0ec1c97c93c8c51f62b05b54cbaa8b3db2.exe
File created	C:\WINDOWS\SysWOW64\deb.sys	servise.exe
File created	C:\WINDOWS\SysWOW64\logo.scr	servise.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\WINDOWS\system\servise.exe	8fae115270d6915f528b818c9085bc0ec1c97c93c8c51f62b05b54cbaa8b3db2.exe
File opened for modification	C:\WINDOWS\system\servise.exe	8fae115270d6915f528b818c9085bc0ec1c97c93c8c51f62b05b54cbaa8b3db2.exe

Modifies Control Panel 3 IoCs

evasion

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\Desktop\ScreenSaveActive = "1"	servise.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\Desktop\ScreenSaveTimeOut = "120"	servise.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\Desktop\SCRNSAVE.EXE = "C:\\WINDOWS\\System32\\logo.scr"	servise.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1872	8fae115270d6915f528b818c9085bc0ec1c97c93c8c51f62b05b54cbaa8b3db2.exe
1872	8fae115270d6915f528b818c9085bc0ec1c97c93c8c51f62b05b54cbaa8b3db2.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe
4052	servise.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1872 wrote to memory of 4040	1872	8fae115270d6915f528b818c9085bc0ec1c97c93c8c51f62b05b54cbaa8b3db2.exe	81
PID 1872 wrote to memory of 4040	1872	8fae115270d6915f528b818c9085bc0ec1c97c93c8c51f62b05b54cbaa8b3db2.exe	81
PID 1872 wrote to memory of 4040	1872	8fae115270d6915f528b818c9085bc0ec1c97c93c8c51f62b05b54cbaa8b3db2.exe	81
PID 4040 wrote to memory of 4052	4040	cmd.exe	83
PID 4040 wrote to memory of 4052	4040	cmd.exe	83
PID 4040 wrote to memory of 4052	4040	cmd.exe	83

System policy modification 1 TTPs 2 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\explorer	servise.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoFolderOptions = "1"	servise.exe

C:\Users\Admin\AppData\Local\Temp\8fae115270d6915f528b818c9085bc0ec1c97c93c8c51f62b05b54cbaa8b3db2.exe
"C:\Users\Admin\AppData\Local\Temp\8fae115270d6915f528b818c9085bc0ec1c97c93c8c51f62b05b54cbaa8b3db2.exe"
1⤵
- Adds Run key to start application
- Drops file in System32 directory
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1872
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\WINDOWS\system32\d.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4040
- - C:\WINDOWS\system\servise.exe
    C:\WINDOWS\system\servise.exe
    3⤵
    - Modifies visibility of file extensions in Explorer
    - Modifies visiblity of hidden/system files in Explorer
    - Executes dropped EXE
    - Adds Run key to start application
    - Drops file in System32 directory
    - Modifies Control Panel
    - Suspicious behavior: EnumeratesProcesses
    - System policy modification
    PID:4052

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

T1158

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\WINDOWS\SysWOW64\d.bat

Filesize
35B

MD5
2c82ed675dd41a9efcd9853c69a7256a

SHA1
1393008a582e70349b0669e975235c48459419c4

SHA256
983649bc9a339035f7a558dfab8678b06b5222d265a21584371d438c8838ffbb

SHA512
f8349b5031b7b7f0f91f58fa26053f4efc3106d184df960e2d6dc1bf06dc6c3ffda6817ee0786b4a916ef5d022a9bcfa1bb08a573b20a138e31647ad39c02041

Download Submit
C:\WINDOWS\system\servise.exe

Filesize
286KB

MD5
244d1fbc6fd418449e5a63c641e340dc

SHA1
1c162f80ddd6787d03fd33d18d77a520734aedb0

SHA256
8fae115270d6915f528b818c9085bc0ec1c97c93c8c51f62b05b54cbaa8b3db2

SHA512
9906e22f0f240be59e1c65d8259466fc4ffb229dbb45aae93740c9ba8e8fe752971971259ecbf95dcf864a4155c9c132f4a4e9caf71f101c33f45cdd4841f714

Download Submit
C:\Windows\System\servise.exe

Filesize
286KB

MD5
244d1fbc6fd418449e5a63c641e340dc

SHA1
1c162f80ddd6787d03fd33d18d77a520734aedb0

SHA256
8fae115270d6915f528b818c9085bc0ec1c97c93c8c51f62b05b54cbaa8b3db2

SHA512
9906e22f0f240be59e1c65d8259466fc4ffb229dbb45aae93740c9ba8e8fe752971971259ecbf95dcf864a4155c9c132f4a4e9caf71f101c33f45cdd4841f714

Download Submit
memory/1872-133-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1872-135-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/4052-140-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/4052-141-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download