ab4e1a5712e923b65fc44b4163c4fe7d2d02677db938f3fe38c90b4f8ffffa7b

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
22-05-2024 01:53

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General

Target

2024-05-22_7f44fb0166955c55e003afcb8a856049_avoslocker_revil.exe
Size

6.5MB
MD5

7f44fb0166955c55e003afcb8a856049
SHA1

d6fd34ee7b78b58f3161dce0adb748a7d4a5f746
SHA256

ab4e1a5712e923b65fc44b4163c4fe7d2d02677db938f3fe38c90b4f8ffffa7b
SHA512

5988b75591f0159805c9165cbae2d49b8925c102fe1ba51e58b1bf197ae86322a384817bab5bc90c59fde1419b1f4876dd0f97c03bc60fc432e6befbe432e25d
SSDEEP

98304:ZI9tiSH6a6gfFCZ8th/yp3qvZ4ypOKRxoBBTxBQk6dtQD:ZAH6aff4+4p84yjRyBNxqQ

Score

8^/10

discovery

Malware Config

Signatures

Drops file in Drivers directory 1 IoCs

Processes:

2024-05-22_7f44fb0166955c55e003afcb8a856049_avoslocker_revil.exe

description	ioc	process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	2024-05-22_7f44fb0166955c55e003afcb8a856049_avoslocker_revil.exe

Executes dropped EXE 1 IoCs

Processes:

a37fc0c36e5b45fda98f8df6b978fa7f.exe

pid process

2148 a37fc0c36e5b45fda98f8df6b978fa7f.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
2148	a37fc0c36e5b45fda98f8df6b978fa7f.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-05-22_7f44fb0166955c55e003afcb8a856049_avoslocker_revil.exe

description	pid	process	target process
PID 2976 wrote to memory of 2148	2976	2024-05-22_7f44fb0166955c55e003afcb8a856049_avoslocker_revil.exe	a37fc0c36e5b45fda98f8df6b978fa7f.exe
PID 2976 wrote to memory of 2148	2976	2024-05-22_7f44fb0166955c55e003afcb8a856049_avoslocker_revil.exe	a37fc0c36e5b45fda98f8df6b978fa7f.exe
PID 2976 wrote to memory of 2148	2976	2024-05-22_7f44fb0166955c55e003afcb8a856049_avoslocker_revil.exe	a37fc0c36e5b45fda98f8df6b978fa7f.exe
PID 2976 wrote to memory of 2148	2976	2024-05-22_7f44fb0166955c55e003afcb8a856049_avoslocker_revil.exe	a37fc0c36e5b45fda98f8df6b978fa7f.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-22_7f44fb0166955c55e003afcb8a856049_avoslocker_revil.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-22_7f44fb0166955c55e003afcb8a856049_avoslocker_revil.exe"
1⤵
- Drops file in Drivers directory
- Suspicious use of WriteProcessMemory
PID:2976

C:\Users\Admin\AppData\Local\Temp\a37fc0c36e5b45fda98f8df6b978fa7f.exe
"C:\Users\Admin\AppData\Local\Temp\a37fc0c36e5b45fda98f8df6b978fa7f.exe" --01
2⤵
- Executes dropped EXE
PID:2148

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\a37fc0c36e5b45fda98f8df6b978fa7f.exe
Filesize
6.0MB

MD5
02e6bf47f5315e8da515ccae63f58a6e

SHA1
3469eec2964080610b188eceabc216a5f0244d2b

SHA256
aad9c5c01c5c87d33da0695c53eb0bdae432d41452a2f54ddc1f23eb14928517

SHA512
949bf7ff8eaa37a0c036af580f6bde633aec5336312f1c96d879aaf2398ee05f82a9d84ce002937b95382bedf2e7143e894b8d0feec478d074a1a3e1baf1d031

Download Submit
memory/2976-0-0x000007FEF5EDE000-0x000007FEF5EDF000-memory.dmp

Filesize
4KB

Download
memory/2976-1-0x000007FEF5C20000-0x000007FEF65BD000-memory.dmp

Filesize
9.6MB

Download
memory/2976-2-0x000007FEF5C20000-0x000007FEF65BD000-memory.dmp

Filesize
9.6MB

Download
memory/2976-3-0x000007FEF5C20000-0x000007FEF65BD000-memory.dmp

Filesize
9.6MB

Download
memory/2976-4-0x0000000000770000-0x000000000079E000-memory.dmp

Filesize
184KB

Download
memory/2976-5-0x00000000003B0000-0x00000000003BA000-memory.dmp

Filesize
40KB

Download
memory/2976-12-0x0000000000170000-0x0000000000180000-memory.dmp

Filesize
64KB

Download
memory/2976-13-0x000007FEF5C20000-0x000007FEF65BD000-memory.dmp

Filesize
9.6MB

Download