84eb28554a310a965b38fe16ded1cb7d92a5e819cdc2cac7a4eca78702967868

Analysis

max time kernel
143s
max time network
136s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
04/10/2022, 06:32

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

84eb28554a310a965b38fe16ded1cb7d92a5e819cdc2cac7a4eca78702967868.exe
Size

296KB
MD5

1517f2707b830d74d5235a8fbbd9c878
SHA1

a24713b7b1007454ab739eec47a2c77bd721b4c4
SHA256

84eb28554a310a965b38fe16ded1cb7d92a5e819cdc2cac7a4eca78702967868
SHA512

325ccd1fb8bf7bfae8a2371e5344a3ea24ec28339dfeaf4b7b724c4326b1bdbe47112b745e9a7e668454fa19d387fc7a855c0aac6c825e2f45679626322c8636
SSDEEP

6144:DGjHCjDTEB6yeWFmh9BnVZvaoMiSQflLTBpcvK9UkR1/A0huMIwNFJAsmgtVCX:jDV9aoMiVTYX

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1264	smsss.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\MACHINE\SOFTWARE\Wow6432Node\MICROSOFT\WINDOWS\CURRENTVERSION\RUN	smsss.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RUN\Windows = "C:\\smsss.exe"	smsss.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1940	84eb28554a310a965b38fe16ded1cb7d92a5e819cdc2cac7a4eca78702967868.exe
1264	smsss.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1940 wrote to memory of 1264	1940	84eb28554a310a965b38fe16ded1cb7d92a5e819cdc2cac7a4eca78702967868.exe	28
PID 1940 wrote to memory of 1264	1940	84eb28554a310a965b38fe16ded1cb7d92a5e819cdc2cac7a4eca78702967868.exe	28
PID 1940 wrote to memory of 1264	1940	84eb28554a310a965b38fe16ded1cb7d92a5e819cdc2cac7a4eca78702967868.exe	28
PID 1940 wrote to memory of 1264	1940	84eb28554a310a965b38fe16ded1cb7d92a5e819cdc2cac7a4eca78702967868.exe	28

C:\Users\Admin\AppData\Local\Temp\84eb28554a310a965b38fe16ded1cb7d92a5e819cdc2cac7a4eca78702967868.exe
"C:\Users\Admin\AppData\Local\Temp\84eb28554a310a965b38fe16ded1cb7d92a5e819cdc2cac7a4eca78702967868.exe"
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1940
- C:\smsss.exe
  "C:\smsss.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of SetWindowsHookEx
  PID:1264

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

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\smsss.exe

Filesize
296KB

MD5
1517f2707b830d74d5235a8fbbd9c878

SHA1
a24713b7b1007454ab739eec47a2c77bd721b4c4

SHA256
84eb28554a310a965b38fe16ded1cb7d92a5e819cdc2cac7a4eca78702967868

SHA512
325ccd1fb8bf7bfae8a2371e5344a3ea24ec28339dfeaf4b7b724c4326b1bdbe47112b745e9a7e668454fa19d387fc7a855c0aac6c825e2f45679626322c8636

Download Submit
C:\smsss.exe

Filesize
296KB

MD5
1517f2707b830d74d5235a8fbbd9c878

SHA1
a24713b7b1007454ab739eec47a2c77bd721b4c4

SHA256
84eb28554a310a965b38fe16ded1cb7d92a5e819cdc2cac7a4eca78702967868

SHA512
325ccd1fb8bf7bfae8a2371e5344a3ea24ec28339dfeaf4b7b724c4326b1bdbe47112b745e9a7e668454fa19d387fc7a855c0aac6c825e2f45679626322c8636

Download Submit
memory/1940-56-0x0000000076181000-0x0000000076183000-memory.dmp

Filesize
8KB

Download