41b2a7df35ce56a02f2f4db1db12ab68c1fa15d845dfe2702c312ba2dd48f7a4

Analysis

max time kernel
144s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
25/12/2023, 14:41

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

265b4127b48fd2b17fcb756a684051e1.exe
Size

33KB
MD5

265b4127b48fd2b17fcb756a684051e1
SHA1

27285910ab27fb7c5232ee9b86dcaed36e76430a
SHA256

41b2a7df35ce56a02f2f4db1db12ab68c1fa15d845dfe2702c312ba2dd48f7a4
SHA512

326e40206aea0fc9dc9b82849dc87dcf2674c0366e172e1aa7e2cb13958ebf75efd7a67e735b2beedc9f4944d9e0ed70593e9e3aeccd19e9a5cc04395d8e4c6e
SSDEEP

768:n2j22WWYom8y0VsvJDIlfGMBFUGFwWEiOTdxDTdCKlwasZ3/PowD/vBW1:2iz5UlFBNk3QKDsZow7BW1

Score

7^/10

persistence upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3716	svclss.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4616-0-0x0000000000400000-0x000000000041B000-memory.dmp	upx
behavioral2/memory/4616-6-0x0000000000400000-0x000000000041B000-memory.dmp	upx
behavioral2/files/0x000600000001e5df-5.dat	upx
behavioral2/memory/3716-7-0x0000000000400000-0x000000000041B000-memory.dmp	upx
behavioral2/memory/3716-8-0x0000000000400000-0x000000000041B000-memory.dmp	upx
behavioral2/memory/3716-9-0x0000000000400000-0x000000000041B000-memory.dmp	upx
behavioral2/memory/3716-10-0x0000000000400000-0x000000000041B000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Internet Security = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\svclss.exe"	265b4127b48fd2b17fcb756a684051e1.exe

Enumerates connected drives 3 TTPs 21 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)	\??\I:	svclss.exe
File opened (read-only)	\??\K:	svclss.exe
File opened (read-only)	\??\L:	svclss.exe
File opened (read-only)	\??\O:	svclss.exe
File opened (read-only)	\??\R:	svclss.exe
File opened (read-only)	\??\S:	svclss.exe
File opened (read-only)	\??\H:	svclss.exe
File opened (read-only)	\??\J:	svclss.exe
File opened (read-only)	\??\M:	svclss.exe
File opened (read-only)	\??\Q:	svclss.exe
File opened (read-only)	\??\U:	svclss.exe
File opened (read-only)	\??\X:	svclss.exe
File opened (read-only)	\??\E:	svclss.exe
File opened (read-only)	\??\T:	svclss.exe
File opened (read-only)	\??\V:	svclss.exe
File opened (read-only)	\??\Y:	svclss.exe
File opened (read-only)	\??\G:	svclss.exe
File opened (read-only)	\??\N:	svclss.exe
File opened (read-only)	\??\P:	svclss.exe
File opened (read-only)	\??\W:	svclss.exe
File opened (read-only)	\??\Z:	svclss.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4616 wrote to memory of 3716	4616	265b4127b48fd2b17fcb756a684051e1.exe	86
PID 4616 wrote to memory of 3716	4616	265b4127b48fd2b17fcb756a684051e1.exe	86
PID 4616 wrote to memory of 3716	4616	265b4127b48fd2b17fcb756a684051e1.exe	86

C:\Users\Admin\AppData\Local\Temp\265b4127b48fd2b17fcb756a684051e1.exe
"C:\Users\Admin\AppData\Local\Temp\265b4127b48fd2b17fcb756a684051e1.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4616
- C:\Users\Admin\AppData\Roaming\Microsoft\svclss.exe
  C:\Users\Admin\AppData\Roaming\Microsoft\svclss.exe
  2⤵
  - Executes dropped EXE
  - Enumerates connected drives
  PID:3716

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\svclss.exe

Filesize
33KB

MD5
265b4127b48fd2b17fcb756a684051e1

SHA1
27285910ab27fb7c5232ee9b86dcaed36e76430a

SHA256
41b2a7df35ce56a02f2f4db1db12ab68c1fa15d845dfe2702c312ba2dd48f7a4

SHA512
326e40206aea0fc9dc9b82849dc87dcf2674c0366e172e1aa7e2cb13958ebf75efd7a67e735b2beedc9f4944d9e0ed70593e9e3aeccd19e9a5cc04395d8e4c6e

Download Submit
memory/3716-7-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/3716-8-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/3716-9-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/3716-10-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/4616-0-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/4616-6-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads