bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2 | Triage

Analysis

max time kernel
152s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
23-11-2022 10:46

Sharing

Report Analysis Logs

General

Target

bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe
Size

447KB
MD5

b11ac9f1dc4bc69b0e9e4fd9e70f3c2f
SHA1

6cb25247dc4fc65c157052dc619f9903193a53ad
SHA256

bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2
SHA512

ff1317947b517aa1fcd52ac6e41c84fd0d168a501a710b6ebf62557ebbc1f1a8aa4b39bf30335d71e7a2c6382b14b60c83a640c261083b83e29814d682edbbbf
SSDEEP

12288:QjkArEN249AyE/rbaMct4bO2/VAZPYJ2pfsLEuhi4B:LFE//Tct4bOs/mUthN

Score

8^/10

evasion upx

Malware Config

Signatures

Modifies Windows Firewall 1 TTPs 3 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exenetsh.exenetsh.exe

pid process

384 netsh.exe
1900 netsh.exe
3984 netsh.exe

UPX packed file 1 IoCs

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

Processes:

resource	yara_rule
behavioral2/memory/1284-132-0x0000000000400000-0x00000000004C1000-memory.dmp	upx

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

System Information Discovery

Processes:

bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\Control Panel\International\Geo\Nation	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.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 2 IoCs

Processes:

bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe
Key created	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000_Classes\Local Settings	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe

Suspicious use of FindShellTrayWindow 25 IoCs

Processes:

bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe

pid	process
1284	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe
1284	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe
1284	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe
1284	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe
1284	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe
1284	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe
1284	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe
1284	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe
1284	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe
1284	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe
1284	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe
1284	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe
1284	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe
1284	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe
1284	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe
1284	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe
1284	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe
1284	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe
1284	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe
1284	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe
1284	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe
1284	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe
1284	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe
1284	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe
1284	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe

Suspicious use of SendNotifyMessage 25 IoCs

Processes:

bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe

pid	process
1284	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe
1284	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe
1284	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe
1284	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe
1284	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe
1284	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe
1284	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe
1284	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe
1284	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe
1284	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe
1284	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe
1284	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe
1284	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe
1284	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe
1284	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe
1284	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe
1284	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe
1284	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe
1284	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe
1284	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe
1284	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe
1284	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe
1284	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe
1284	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe
1284	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe

description	pid	process	target process
PID 1284 wrote to memory of 384	1284	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe	netsh.exe
PID 1284 wrote to memory of 384	1284	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe	netsh.exe
PID 1284 wrote to memory of 384	1284	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe	netsh.exe
PID 1284 wrote to memory of 1900	1284	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe	netsh.exe
PID 1284 wrote to memory of 1900	1284	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe	netsh.exe
PID 1284 wrote to memory of 1900	1284	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe	netsh.exe
PID 1284 wrote to memory of 3984	1284	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe	netsh.exe
PID 1284 wrote to memory of 3984	1284	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe	netsh.exe
PID 1284 wrote to memory of 3984	1284	bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe
"C:\Users\Admin\AppData\Local\Temp\bfd15ec46638355608d5f63c139b1369c9f88ed7dbde7685af1b8e8b85efaca2.exe"
1⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1284

C:\Windows\SysWOW64\netsh.exe
"C:\Windows\System32\netsh.exe" advfirewall firewall show rule name="TozomaaSO_Update"
2⤵
- Modifies Windows Firewall
PID:384

C:\Windows\SysWOW64\netsh.exe
netsh advfirewall firewall delete rule name=TozomaaSO_BG
2⤵
- Modifies Windows Firewall
PID:1900

C:\Windows\SysWOW64\netsh.exe
netsh advfirewall firewall add rule name="TozomaaSO_BG" dir=in action=allow program="C:\TozomaaSO\TozomaaBG.exe" enable=yes
2⤵
- Modifies Windows Firewall
PID:3984

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

System Information Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/384-133-0x0000000000000000-mapping.dmp

Download
memory/1284-132-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/1900-134-0x0000000000000000-mapping.dmp

Download
memory/3984-135-0x0000000000000000-mapping.dmp

Download