4072273a837821f07c986959028d06e50b0fe687c80b775bd489fbf9dd134a00

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
04/01/2024, 06:17

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General

Target

401ba521b445398907f1eb2f24a59b87.exe
Size

142KB
MD5

401ba521b445398907f1eb2f24a59b87
SHA1

3be0c8894d86ac3c2aec8222033c6272021727b4
SHA256

4072273a837821f07c986959028d06e50b0fe687c80b775bd489fbf9dd134a00
SHA512

a96a90d8d9fa1da7905b5c49881acc226e56cba6598cab69475f088f46a73bda7099d4cde20b9f93e41795bda6ce287575e3bb7bb3c49696098ca41f66ca4feb
SSDEEP

3072:KnOn7t7XpdpCCTg/sxFgJPeqgKJ+BCHAtC+R6VnrMF+ggM6K4xCmQqdK:KKpdcCrTigKh+q2+gpbipQQK

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2708	downloadmr.exe

Loads dropped DLL 4 IoCs

pid	Process
3020	401ba521b445398907f1eb2f24a59b87.exe
3020	401ba521b445398907f1eb2f24a59b87.exe
3020	401ba521b445398907f1eb2f24a59b87.exe
3020	401ba521b445398907f1eb2f24a59b87.exe

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

System Information Discovery
T1082

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2708	downloadmr.exe
2708	downloadmr.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3020 wrote to memory of 2708	3020	401ba521b445398907f1eb2f24a59b87.exe	28
PID 3020 wrote to memory of 2708	3020	401ba521b445398907f1eb2f24a59b87.exe	28
PID 3020 wrote to memory of 2708	3020	401ba521b445398907f1eb2f24a59b87.exe	28
PID 3020 wrote to memory of 2708	3020	401ba521b445398907f1eb2f24a59b87.exe	28

C:\Users\Admin\AppData\Local\Temp\401ba521b445398907f1eb2f24a59b87.exe
"C:\Users\Admin\AppData\Local\Temp\401ba521b445398907f1eb2f24a59b87.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3020
- C:\Users\Admin\AppData\Local\Temp\nsy11CE.tmp\downloadmr.exe
  C:\Users\Admin\AppData\Local\Temp\nsy11CE.tmp\downloadmr.exe /u4f96c0af-ae48-469a-a08c-2bb95bc06f2f /e2832258
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:2708

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\nsy11CE.tmp\System.dll

Filesize
21KB

MD5
5ebc73650256e9c8ddbcda231db829a1

SHA1
988d4535e18754ab2a6248abae96c5697d7dbcd5

SHA256
1eaa543842df7795404184e8892a1654b0773dbc9bd8b54c7fdb9e68f4355493

SHA512
b21266e76fc7263af982a1336a766e47ccf348ed56b305dbb09f03574c9b2a7309f12200e80d86f9a251381be6e87a41206447f11c51899cb31fba10da1d5270

Download Submit
\Users\Admin\AppData\Local\Temp\nsy11CE.tmp\downloadmr.exe

Filesize
122KB

MD5
da254a8488b60244654e1cf4d6796cf8

SHA1
23d06f4589786652a3a226b5012a5520a3d03452

SHA256
6d3b82a7ad74a1e88ae4d0f9176082130f1558fb3ff42a8b45ca8b80445efc2d

SHA512
d311f90ad65441f6c7ae55220c2c3f117aa7601d083e6847e1b58b96c3c332d68a25d445310818396dc88678fb9ec5356f35a04a392c3d23746a2231e14b0a2e

Download Submit
memory/2708-18-0x0000000074350000-0x00000000748FB000-memory.dmp

Filesize
5.7MB

Download
memory/2708-19-0x0000000074350000-0x00000000748FB000-memory.dmp

Filesize
5.7MB

Download
memory/2708-20-0x0000000000BF0000-0x0000000000C30000-memory.dmp

Filesize
256KB

Download
memory/2708-21-0x0000000000BF0000-0x0000000000C30000-memory.dmp

Filesize
256KB

Download
memory/2708-22-0x0000000005A10000-0x0000000005B10000-memory.dmp

Filesize
1024KB

Download
memory/2708-23-0x0000000074350000-0x00000000748FB000-memory.dmp

Filesize
5.7MB

Download
memory/3020-27-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download