0847f972e4be0c16d83cb8f58688f2aa6dcb8aef9b3909755a93f435c771900e

Analysis

max time kernel
135s
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 02:29

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General

Target

2024-05-22_d688c21c548c567c46ec5fe585fd34f6_avoslocker_revil.exe
Size

6.5MB
MD5

d688c21c548c567c46ec5fe585fd34f6
SHA1

9352a95b0e887419f939ad3ada326652cc410543
SHA256

0847f972e4be0c16d83cb8f58688f2aa6dcb8aef9b3909755a93f435c771900e
SHA512

0489dd0142d959fc9764612d0f9bffd5fea98a6e36daa08447b4439097360cc9dadb1c4ae45c6644cb5f4e8feb09033e7ae4cd0fa165b465c0a2e959e247e340
SSDEEP

98304:+I9tiSH6a6gfFCZ8th/yp3qvZ4ypOKRxoBBTxBQk6dtQ:+AH6aff4+4p84yjRyBNxqQ

Score

8^/10

discovery

Malware Config

Signatures

Drops file in Drivers directory 1 IoCs

Processes:

2024-05-22_d688c21c548c567c46ec5fe585fd34f6_avoslocker_revil.exe

description	ioc	process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	2024-05-22_d688c21c548c567c46ec5fe585fd34f6_avoslocker_revil.exe

Executes dropped EXE 1 IoCs

Processes:

bf5440fd85d94288a0d2827b44cec600.exe

pid process

4552 bf5440fd85d94288a0d2827b44cec600.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
4552	bf5440fd85d94288a0d2827b44cec600.exe

Drops desktop.ini file(s) 2 IoCs

Processes:

2024-05-22_d688c21c548c567c46ec5fe585fd34f6_avoslocker_revil.exe

description	ioc	process
File created	C:\Windows\assembly\Desktop.ini	2024-05-22_d688c21c548c567c46ec5fe585fd34f6_avoslocker_revil.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	2024-05-22_d688c21c548c567c46ec5fe585fd34f6_avoslocker_revil.exe

Drops file in Windows directory 3 IoCs

Processes:

2024-05-22_d688c21c548c567c46ec5fe585fd34f6_avoslocker_revil.exe

description	ioc	process
File opened for modification	C:\Windows\assembly	2024-05-22_d688c21c548c567c46ec5fe585fd34f6_avoslocker_revil.exe
File created	C:\Windows\assembly\Desktop.ini	2024-05-22_d688c21c548c567c46ec5fe585fd34f6_avoslocker_revil.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	2024-05-22_d688c21c548c567c46ec5fe585fd34f6_avoslocker_revil.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

2024-05-22_d688c21c548c567c46ec5fe585fd34f6_avoslocker_revil.exe

description	pid	process	target process
PID 2004 wrote to memory of 4552	2004	2024-05-22_d688c21c548c567c46ec5fe585fd34f6_avoslocker_revil.exe	bf5440fd85d94288a0d2827b44cec600.exe
PID 2004 wrote to memory of 4552	2004	2024-05-22_d688c21c548c567c46ec5fe585fd34f6_avoslocker_revil.exe	bf5440fd85d94288a0d2827b44cec600.exe
PID 2004 wrote to memory of 4552	2004	2024-05-22_d688c21c548c567c46ec5fe585fd34f6_avoslocker_revil.exe	bf5440fd85d94288a0d2827b44cec600.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-22_d688c21c548c567c46ec5fe585fd34f6_avoslocker_revil.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-22_d688c21c548c567c46ec5fe585fd34f6_avoslocker_revil.exe"
1⤵
- Drops file in Drivers directory
- Drops desktop.ini file(s)
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2004

C:\Users\Admin\AppData\Local\Temp\bf5440fd85d94288a0d2827b44cec600.exe
"C:\Users\Admin\AppData\Local\Temp\bf5440fd85d94288a0d2827b44cec600.exe" --01
2⤵
- Executes dropped EXE
PID:4552

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\bf5440fd85d94288a0d2827b44cec600.exe

Filesize
6.0MB

MD5
02e6bf47f5315e8da515ccae63f58a6e

SHA1
3469eec2964080610b188eceabc216a5f0244d2b

SHA256
aad9c5c01c5c87d33da0695c53eb0bdae432d41452a2f54ddc1f23eb14928517

SHA512
949bf7ff8eaa37a0c036af580f6bde633aec5336312f1c96d879aaf2398ee05f82a9d84ce002937b95382bedf2e7143e894b8d0feec478d074a1a3e1baf1d031

Download Submit
memory/2004-3-0x00007FFF03FF0000-0x00007FFF04991000-memory.dmp

Filesize
9.6MB

Download
memory/2004-2-0x000000001BFD0000-0x000000001C49E000-memory.dmp

Filesize
4.8MB

Download
memory/2004-0-0x00007FFF042A5000-0x00007FFF042A6000-memory.dmp

Filesize
4KB

Download
memory/2004-4-0x000000001C4A0000-0x000000001C53C000-memory.dmp

Filesize
624KB

Download
memory/2004-5-0x00000000012D0000-0x00000000012D8000-memory.dmp

Filesize
32KB

Download
memory/2004-6-0x000000001C820000-0x000000001C84E000-memory.dmp

Filesize
184KB

Download
memory/2004-9-0x000000001C8B0000-0x000000001C8BA000-memory.dmp

Filesize
40KB

Download
memory/2004-13-0x00007FFF03FF0000-0x00007FFF04991000-memory.dmp

Filesize
9.6MB

Download
memory/2004-1-0x00007FFF03FF0000-0x00007FFF04991000-memory.dmp

Filesize
9.6MB

Download
memory/2004-16-0x00000000013E0000-0x00000000013F0000-memory.dmp

Filesize
64KB

Download
memory/2004-17-0x000000001E310000-0x000000001E330000-memory.dmp

Filesize
128KB

Download
memory/2004-18-0x000000001D200000-0x000000001D218000-memory.dmp

Filesize
96KB

Download
memory/2004-20-0x00007FFF03FF0000-0x00007FFF04991000-memory.dmp

Filesize
9.6MB

Download