568b22e6790c9a870769f08dc7c5d777f38e7729aaef662f0f4442cdfff03731

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
18/01/2024, 18:12

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General

Target

65b16979995f7c57eccba56baaab29b3.exe
Size

142KB
MD5

65b16979995f7c57eccba56baaab29b3
SHA1

d38e999ed4dfde8a68dc36b3842a11e595550af8
SHA256

568b22e6790c9a870769f08dc7c5d777f38e7729aaef662f0f4442cdfff03731
SHA512

e40372ba0dfb5b613ebc68c87c8529c993bd11384ab64a3a7f8fa934a0a2182789be55f702fb7e0cf570fa1dd6ddd21d88cb45fe18e5d84705195f68740e351b
SSDEEP

3072:xnOn7t7XpdpCCTg/sxFgJaeqgKJ+BC5CUsh95678FCac6TE:xKpdcCrTdgKIjhNFBceE

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3000	downloadmr.exe

Loads dropped DLL 4 IoCs

pid	Process
2148	65b16979995f7c57eccba56baaab29b3.exe
2148	65b16979995f7c57eccba56baaab29b3.exe
2148	65b16979995f7c57eccba56baaab29b3.exe
2148	65b16979995f7c57eccba56baaab29b3.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
3000	downloadmr.exe
3000	downloadmr.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2148 wrote to memory of 3000	2148	65b16979995f7c57eccba56baaab29b3.exe	28
PID 2148 wrote to memory of 3000	2148	65b16979995f7c57eccba56baaab29b3.exe	28
PID 2148 wrote to memory of 3000	2148	65b16979995f7c57eccba56baaab29b3.exe	28
PID 2148 wrote to memory of 3000	2148	65b16979995f7c57eccba56baaab29b3.exe	28

C:\Users\Admin\AppData\Local\Temp\65b16979995f7c57eccba56baaab29b3.exe
"C:\Users\Admin\AppData\Local\Temp\65b16979995f7c57eccba56baaab29b3.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2148
- C:\Users\Admin\AppData\Local\Temp\nso560.tmp\downloadmr.exe
  C:\Users\Admin\AppData\Local\Temp\nso560.tmp\downloadmr.exe /u4dc9054e-38b0-4614-bdd5-20605bc06f26 /e50623
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:3000

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\nso560.tmp\System.dll

Filesize
21KB

MD5
5ebc73650256e9c8ddbcda231db829a1

SHA1
988d4535e18754ab2a6248abae96c5697d7dbcd5

SHA256
1eaa543842df7795404184e8892a1654b0773dbc9bd8b54c7fdb9e68f4355493

SHA512
b21266e76fc7263af982a1336a766e47ccf348ed56b305dbb09f03574c9b2a7309f12200e80d86f9a251381be6e87a41206447f11c51899cb31fba10da1d5270

Download Submit
\Users\Admin\AppData\Local\Temp\nso560.tmp\downloadmr.exe

Filesize
122KB

MD5
da254a8488b60244654e1cf4d6796cf8

SHA1
23d06f4589786652a3a226b5012a5520a3d03452

SHA256
6d3b82a7ad74a1e88ae4d0f9176082130f1558fb3ff42a8b45ca8b80445efc2d

SHA512
d311f90ad65441f6c7ae55220c2c3f117aa7601d083e6847e1b58b96c3c332d68a25d445310818396dc88678fb9ec5356f35a04a392c3d23746a2231e14b0a2e

Download Submit
memory/2148-27-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/3000-18-0x0000000074590000-0x0000000074B3B000-memory.dmp

Filesize
5.7MB

Download
memory/3000-20-0x0000000000600000-0x0000000000640000-memory.dmp

Filesize
256KB

Download
memory/3000-19-0x0000000074590000-0x0000000074B3B000-memory.dmp

Filesize
5.7MB

Download
memory/3000-21-0x0000000000600000-0x0000000000640000-memory.dmp

Filesize
256KB

Download
memory/3000-22-0x0000000005A70000-0x0000000005B70000-memory.dmp

Filesize
1024KB

Download
memory/3000-23-0x0000000074590000-0x0000000074B3B000-memory.dmp

Filesize
5.7MB

Download