26bea77f12396d3868fc718d5c32a1202c3b60b9f5df0def7003df9f719fa9b1

Analysis

max time kernel
141s
max time network
125s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
22-05-2024 02:45

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General

Target

2024-05-22_f93ad3ce854aa69dd75d7e3e260defb2_avoslocker_revil.exe
Size

6.5MB
MD5

f93ad3ce854aa69dd75d7e3e260defb2
SHA1

8ee806a0976dd0a265e1279c60031b5edc34d3d7
SHA256

26bea77f12396d3868fc718d5c32a1202c3b60b9f5df0def7003df9f719fa9b1
SHA512

b0af57e34290b006c8d9a982979bc6046662f9508ea48d04c6ed954351f94c3d9e5afe66699a13796d9fad52d0424c72ea630da7539995c9007b1169fb07f4a9
SSDEEP

98304:LI9tiSH6a6gfFCZ8th/yp3qvZ4ypOKRxoBBTxBQk6dtQ:LAH6aff4+4p84yjRyBNxqQ

Score

8^/10

discovery

Malware Config

Signatures

Drops file in Drivers directory 1 IoCs

Processes:

2024-05-22_f93ad3ce854aa69dd75d7e3e260defb2_avoslocker_revil.exe

description	ioc	process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	2024-05-22_f93ad3ce854aa69dd75d7e3e260defb2_avoslocker_revil.exe

Executes dropped EXE 1 IoCs

Processes:

e15f4c83b6584d5ea85ed918fb2f2b25.exe

pid process

5048 e15f4c83b6584d5ea85ed918fb2f2b25.exe
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

pid	process
5048	e15f4c83b6584d5ea85ed918fb2f2b25.exe

Drops desktop.ini file(s) 2 IoCs

Processes:

2024-05-22_f93ad3ce854aa69dd75d7e3e260defb2_avoslocker_revil.exe

description	ioc	process
File created	C:\Windows\assembly\Desktop.ini	2024-05-22_f93ad3ce854aa69dd75d7e3e260defb2_avoslocker_revil.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	2024-05-22_f93ad3ce854aa69dd75d7e3e260defb2_avoslocker_revil.exe

Drops file in Windows directory 3 IoCs

Processes:

2024-05-22_f93ad3ce854aa69dd75d7e3e260defb2_avoslocker_revil.exe

description	ioc	process
File opened for modification	C:\Windows\assembly	2024-05-22_f93ad3ce854aa69dd75d7e3e260defb2_avoslocker_revil.exe
File created	C:\Windows\assembly\Desktop.ini	2024-05-22_f93ad3ce854aa69dd75d7e3e260defb2_avoslocker_revil.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	2024-05-22_f93ad3ce854aa69dd75d7e3e260defb2_avoslocker_revil.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

2024-05-22_f93ad3ce854aa69dd75d7e3e260defb2_avoslocker_revil.exe

description	pid	process	target process
PID 2592 wrote to memory of 5048	2592	2024-05-22_f93ad3ce854aa69dd75d7e3e260defb2_avoslocker_revil.exe	e15f4c83b6584d5ea85ed918fb2f2b25.exe
PID 2592 wrote to memory of 5048	2592	2024-05-22_f93ad3ce854aa69dd75d7e3e260defb2_avoslocker_revil.exe	e15f4c83b6584d5ea85ed918fb2f2b25.exe
PID 2592 wrote to memory of 5048	2592	2024-05-22_f93ad3ce854aa69dd75d7e3e260defb2_avoslocker_revil.exe	e15f4c83b6584d5ea85ed918fb2f2b25.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-22_f93ad3ce854aa69dd75d7e3e260defb2_avoslocker_revil.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-22_f93ad3ce854aa69dd75d7e3e260defb2_avoslocker_revil.exe"
1⤵
- Drops file in Drivers directory
- Drops desktop.ini file(s)
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2592

C:\Users\Admin\AppData\Local\Temp\e15f4c83b6584d5ea85ed918fb2f2b25.exe
"C:\Users\Admin\AppData\Local\Temp\e15f4c83b6584d5ea85ed918fb2f2b25.exe" --01
2⤵
- Executes dropped EXE
PID:5048

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\e15f4c83b6584d5ea85ed918fb2f2b25.exe
Filesize
6.0MB

MD5
02e6bf47f5315e8da515ccae63f58a6e

SHA1
3469eec2964080610b188eceabc216a5f0244d2b

SHA256
aad9c5c01c5c87d33da0695c53eb0bdae432d41452a2f54ddc1f23eb14928517

SHA512
949bf7ff8eaa37a0c036af580f6bde633aec5336312f1c96d879aaf2398ee05f82a9d84ce002937b95382bedf2e7143e894b8d0feec478d074a1a3e1baf1d031

Download Submit
memory/2592-3-0x00007FFFF3B50000-0x00007FFFF44F1000-memory.dmp

Filesize
9.6MB

Download
memory/2592-2-0x000000001BDB0000-0x000000001C27E000-memory.dmp

Filesize
4.8MB

Download
memory/2592-0-0x00007FFFF3E05000-0x00007FFFF3E06000-memory.dmp

Filesize
4KB

Download
memory/2592-4-0x000000001C280000-0x000000001C31C000-memory.dmp

Filesize
624KB

Download
memory/2592-5-0x00000000012F0000-0x00000000012F8000-memory.dmp

Filesize
32KB

Download
memory/2592-6-0x000000001D4B0000-0x000000001D4DE000-memory.dmp

Filesize
184KB

Download
memory/2592-9-0x000000001C4A0000-0x000000001C4AA000-memory.dmp

Filesize
40KB

Download
memory/2592-12-0x00007FFFF3B50000-0x00007FFFF44F1000-memory.dmp

Filesize
9.6MB

Download
memory/2592-1-0x00007FFFF3B50000-0x00007FFFF44F1000-memory.dmp

Filesize
9.6MB

Download
memory/2592-16-0x000000001C3E0000-0x000000001C3F0000-memory.dmp

Filesize
64KB

Download
memory/2592-17-0x000000001CF80000-0x000000001CFA0000-memory.dmp

Filesize
128KB

Download
memory/2592-18-0x000000001CFD0000-0x000000001CFE8000-memory.dmp

Filesize
96KB

Download
memory/2592-20-0x00007FFFF3B50000-0x00007FFFF44F1000-memory.dmp

Filesize
9.6MB

Download