6287855193049dc9dc14c7e7d2833110ae4b6b0e0b7a7847b68252fb8daec855

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
26-12-2023 01:15

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General

Target

48791dc53c94b7a596a53c2f22d97e48.exe
Size

142KB
MD5

48791dc53c94b7a596a53c2f22d97e48
SHA1

c5b23e2ca66749b58368364881f4f21f51693209
SHA256

6287855193049dc9dc14c7e7d2833110ae4b6b0e0b7a7847b68252fb8daec855
SHA512

6b6289feca03ac6bb3992ee8c16f68544b24cfdb73249596bca301391a354e5bfef71aed11e6c526c5bf0038fc525d6d1f9b4775e7b248d5e58bde87010ad5c3
SSDEEP

3072:6nOn7t7XpdpCCTg/sxFgJaeqgKJ+BCeC4rmFhV/RAbCGdIiLF7:6KpdcCrTdgKb4KhXA22IE

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4528	downloadmr.exe

Loads dropped DLL 2 IoCs

pid	Process
1596	48791dc53c94b7a596a53c2f22d97e48.exe
1596	48791dc53c94b7a596a53c2f22d97e48.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
4528	downloadmr.exe
4528	downloadmr.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1596 wrote to memory of 4528	1596	48791dc53c94b7a596a53c2f22d97e48.exe	92
PID 1596 wrote to memory of 4528	1596	48791dc53c94b7a596a53c2f22d97e48.exe	92
PID 1596 wrote to memory of 4528	1596	48791dc53c94b7a596a53c2f22d97e48.exe	92

C:\Users\Admin\AppData\Local\Temp\48791dc53c94b7a596a53c2f22d97e48.exe
"C:\Users\Admin\AppData\Local\Temp\48791dc53c94b7a596a53c2f22d97e48.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1596
- C:\Users\Admin\AppData\Local\Temp\nsx4E31.tmp\downloadmr.exe
  C:\Users\Admin\AppData\Local\Temp\nsx4E31.tmp\downloadmr.exe /u4d488269-6268-4c29-b4c2-79305bc06ebe /e50583
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:4528

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

C:\Users\Admin\AppData\Local\Temp\nsx4E31.tmp\System.dll

Filesize
21KB

MD5
5ebc73650256e9c8ddbcda231db829a1

SHA1
988d4535e18754ab2a6248abae96c5697d7dbcd5

SHA256
1eaa543842df7795404184e8892a1654b0773dbc9bd8b54c7fdb9e68f4355493

SHA512
b21266e76fc7263af982a1336a766e47ccf348ed56b305dbb09f03574c9b2a7309f12200e80d86f9a251381be6e87a41206447f11c51899cb31fba10da1d5270

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsx4E31.tmp\downloadmr.exe

Filesize
93KB

MD5
e15f3eb88d4a7e446c03bd97e72f18ce

SHA1
35fd11df8e7403819897a8268c1d1b0cfa87f274

SHA256
6d4b7f2baf46df179a5b65f6579d787ba9f9fcffda0280f079bf9549c505f8c1

SHA512
e22c2b08a1dcabd433a2a544ebb9c91bf990a0f852b1ba2391ef2a04c062a264fcc1c18252e996dcb8fb79588caf27f307755a4502911c8d11f850427f268f86

Download Submit
memory/1596-24-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/4528-15-0x0000000001740000-0x0000000001750000-memory.dmp

Filesize
64KB

Download
memory/4528-14-0x00000000743D0000-0x0000000074981000-memory.dmp

Filesize
5.7MB

Download
memory/4528-13-0x00000000743D0000-0x0000000074981000-memory.dmp

Filesize
5.7MB

Download
memory/4528-17-0x0000000001740000-0x0000000001750000-memory.dmp

Filesize
64KB

Download
memory/4528-16-0x0000000001740000-0x0000000001750000-memory.dmp

Filesize
64KB

Download
memory/4528-18-0x0000000001740000-0x0000000001750000-memory.dmp

Filesize
64KB

Download
memory/4528-20-0x00000000743D0000-0x0000000074981000-memory.dmp

Filesize
5.7MB

Download