9e4bafac893b7753d6b9c5a49d6e3bf2d09e8336d6f613cc4385d5283de013d0

Analysis

max time kernel
159s
max time network
159s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
01/10/2022, 21:26

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

9e4bafac893b7753d6b9c5a49d6e3bf2d09e8336d6f613cc4385d5283de013d0.exe
Size

104KB
MD5

73d3ad56e00955ccee8472871aaa4d2a
SHA1

a72fcd6e3024b8e2e950e8fd8b73ca4c1d639830
SHA256

9e4bafac893b7753d6b9c5a49d6e3bf2d09e8336d6f613cc4385d5283de013d0
SHA512

378a2164f35a914cf47bbbd9a675f195fc75b6e52a195309ec064687e351e9abe846d95817b1d8a15aa3058892890448188ca243ac459bcff9bc6449c12f45c3
SSDEEP

1536:GZlzv6RBwgKMOhJYdsXDjTHfjL6IcPIz7YfnoG8bHlfnToIfQIOlIO5oXUl:GZNidKMOhOuTjTqQzs/dgBTBfGv6XUl

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4544	svchost.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	9e4bafac893b7753d6b9c5a49d6e3bf2d09e8336d6f613cc4385d5283de013d0.exe

Adds Run key to start application 2 TTPs 1 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\WindowsServicesStartup = "C:\\Users\\Admin\\AppData\\Local\\Temp\\svchost.exe 1"	9e4bafac893b7753d6b9c5a49d6e3bf2d09e8336d6f613cc4385d5283de013d0.exe

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

System Information Discovery
T1082

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings	9e4bafac893b7753d6b9c5a49d6e3bf2d09e8336d6f613cc4385d5283de013d0.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
4240	NOTEPAD.EXE

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1940	9e4bafac893b7753d6b9c5a49d6e3bf2d09e8336d6f613cc4385d5283de013d0.exe
Token: SeDebugPrivilege	4544	svchost.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1940 wrote to memory of 4240	1940	9e4bafac893b7753d6b9c5a49d6e3bf2d09e8336d6f613cc4385d5283de013d0.exe	82
PID 1940 wrote to memory of 4240	1940	9e4bafac893b7753d6b9c5a49d6e3bf2d09e8336d6f613cc4385d5283de013d0.exe	82
PID 1940 wrote to memory of 4240	1940	9e4bafac893b7753d6b9c5a49d6e3bf2d09e8336d6f613cc4385d5283de013d0.exe	82
PID 1940 wrote to memory of 4544	1940	9e4bafac893b7753d6b9c5a49d6e3bf2d09e8336d6f613cc4385d5283de013d0.exe	83
PID 1940 wrote to memory of 4544	1940	9e4bafac893b7753d6b9c5a49d6e3bf2d09e8336d6f613cc4385d5283de013d0.exe	83
PID 1940 wrote to memory of 4544	1940	9e4bafac893b7753d6b9c5a49d6e3bf2d09e8336d6f613cc4385d5283de013d0.exe	83

C:\Users\Admin\AppData\Local\Temp\9e4bafac893b7753d6b9c5a49d6e3bf2d09e8336d6f613cc4385d5283de013d0.exe
"C:\Users\Admin\AppData\Local\Temp\9e4bafac893b7753d6b9c5a49d6e3bf2d09e8336d6f613cc4385d5283de013d0.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1940
- C:\Windows\SysWOW64\NOTEPAD.EXE
  "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\Log.txt
  2⤵
  - Opens file in notepad (likely ransom note)
  PID:4240
- C:\Users\Admin\AppData\Local\Temp\svchost.exe
  C:\Users\Admin\AppData\Local\Temp\svchost.exe 1
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:4544

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

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\Local\Temp\Log.txt

Filesize
140B

MD5
b299d7d4bc89047ae96952d53564c6ef

SHA1
1bbad0936e4ed9d75079168e477ee151e6740369

SHA256
1adf2c4ef70c2b82fda926bc07edc2ca5d13e78f3e45ba7bce831c67a5f8b7fa

SHA512
bc6fd20813f1fc8cf7433c978f8dfb82dcda00708983b6c7b6f9b6c8f6c7ac86b665aaba6ea422a006a8e3cf8f08b2d976227cd9bb547a3268c4ba442e005474

Download Submit
C:\Users\Admin\AppData\Local\Temp\svchost.exe

Filesize
104KB

MD5
73d3ad56e00955ccee8472871aaa4d2a

SHA1
a72fcd6e3024b8e2e950e8fd8b73ca4c1d639830

SHA256
9e4bafac893b7753d6b9c5a49d6e3bf2d09e8336d6f613cc4385d5283de013d0

SHA512
378a2164f35a914cf47bbbd9a675f195fc75b6e52a195309ec064687e351e9abe846d95817b1d8a15aa3058892890448188ca243ac459bcff9bc6449c12f45c3

Download Submit
C:\Users\Admin\AppData\Local\Temp\svchost.exe

Filesize
104KB

MD5
73d3ad56e00955ccee8472871aaa4d2a

SHA1
a72fcd6e3024b8e2e950e8fd8b73ca4c1d639830

SHA256
9e4bafac893b7753d6b9c5a49d6e3bf2d09e8336d6f613cc4385d5283de013d0

SHA512
378a2164f35a914cf47bbbd9a675f195fc75b6e52a195309ec064687e351e9abe846d95817b1d8a15aa3058892890448188ca243ac459bcff9bc6449c12f45c3

Download Submit