Malware Analysis Report

2024-08-06 12:19

Sample ID 240225-3br6psfh6s
Target crashed_by_vohr.mp3
SHA256 ad15869dd2adda745da583f9c1038ffdb127d7a2bab682b82c9858fd64c32301
Tags
score
6/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
6/10

SHA256

ad15869dd2adda745da583f9c1038ffdb127d7a2bab682b82c9858fd64c32301

Threat Level: Shows suspicious behavior

The file crashed_by_vohr.mp3 was found to be: Shows suspicious behavior.

Malicious Activity Summary


Enumerates connected drives

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK Matrix V13

Initial Access
TA0001
Execution
TA0002
Persistence
TA0003
Privilege Escalation
TA0004
Defense Evasion
TA0005
Credential Access
TA0006
Discovery
TA0007
Query Registry
T1012
Peripheral Device Discovery
T1120
System Information Discovery
T1082
Lateral Movement
TA0008
Collection
TA0009
Exfiltration
TA0010
Command and Control
TA0011
Impact
TA0040
Resource Development
TA0042
Reconnaissance
TA0043

Analysis: static1

Detonation Overview

Reported

2024-02-25 23:20

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-02-25 23:20

Reported

2024-02-25 23:44

Platform

win10v2004-20240221-en

Max time kernel

456s

Max time network

1177s

Command Line

"C:\Program Files (x86)\Windows Media Player\wmplayer.exe" /prefetch:6 /Open "C:\Users\Admin\AppData\Local\Temp\crashed_by_vohr.mp3"

Signatures

Enumerates connected drives

Description Indicator Process Target
File opened (read-only) \??\H: C:\Windows\system32\unregmp2.exe N/A
File opened (read-only) \??\T: C:\Windows\system32\unregmp2.exe N/A
File opened (read-only) \??\Y: C:\Windows\system32\unregmp2.exe N/A
File opened (read-only) \??\K: C:\Windows\system32\unregmp2.exe N/A
File opened (read-only) \??\N: C:\Windows\system32\unregmp2.exe N/A
File opened (read-only) \??\P: C:\Windows\system32\unregmp2.exe N/A
File opened (read-only) \??\Z: C:\Windows\system32\unregmp2.exe N/A
File opened (read-only) \??\B: C:\Windows\system32\unregmp2.exe N/A
File opened (read-only) \??\E: C:\Windows\system32\unregmp2.exe N/A
File opened (read-only) \??\I: C:\Windows\system32\unregmp2.exe N/A
File opened (read-only) \??\J: C:\Windows\system32\unregmp2.exe N/A
File opened (read-only) \??\M: C:\Windows\system32\unregmp2.exe N/A
File opened (read-only) \??\R: C:\Windows\system32\unregmp2.exe N/A
File opened (read-only) \??\S: C:\Windows\system32\unregmp2.exe N/A
File opened (read-only) \??\U: C:\Windows\system32\unregmp2.exe N/A
File opened (read-only) \??\V: C:\Windows\system32\unregmp2.exe N/A
File opened (read-only) \??\A: C:\Windows\system32\unregmp2.exe N/A
File opened (read-only) \??\G: C:\Windows\system32\unregmp2.exe N/A
File opened (read-only) \??\L: C:\Windows\system32\unregmp2.exe N/A
File opened (read-only) \??\O: C:\Windows\system32\unregmp2.exe N/A
File opened (read-only) \??\Q: C:\Windows\system32\unregmp2.exe N/A
File opened (read-only) \??\W: C:\Windows\system32\unregmp2.exe N/A
File opened (read-only) \??\X: C:\Windows\system32\unregmp2.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeShutdownPrivilege N/A C:\Windows\system32\unregmp2.exe N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\system32\unregmp2.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1132 wrote to memory of 3736 N/A C:\Program Files (x86)\Windows Media Player\wmplayer.exe C:\Program Files (x86)\Windows Media Player\setup_wm.exe
PID 1132 wrote to memory of 3736 N/A C:\Program Files (x86)\Windows Media Player\wmplayer.exe C:\Program Files (x86)\Windows Media Player\setup_wm.exe
PID 1132 wrote to memory of 3736 N/A C:\Program Files (x86)\Windows Media Player\wmplayer.exe C:\Program Files (x86)\Windows Media Player\setup_wm.exe
PID 1132 wrote to memory of 2716 N/A C:\Program Files (x86)\Windows Media Player\wmplayer.exe C:\Windows\SysWOW64\unregmp2.exe
PID 1132 wrote to memory of 2716 N/A C:\Program Files (x86)\Windows Media Player\wmplayer.exe C:\Windows\SysWOW64\unregmp2.exe
PID 1132 wrote to memory of 2716 N/A C:\Program Files (x86)\Windows Media Player\wmplayer.exe C:\Windows\SysWOW64\unregmp2.exe
PID 2716 wrote to memory of 3408 N/A C:\Windows\SysWOW64\unregmp2.exe C:\Windows\system32\unregmp2.exe
PID 2716 wrote to memory of 3408 N/A C:\Windows\SysWOW64\unregmp2.exe C:\Windows\system32\unregmp2.exe

Processes

C:\Program Files (x86)\Windows Media Player\wmplayer.exe

"C:\Program Files (x86)\Windows Media Player\wmplayer.exe" /prefetch:6 /Open "C:\Users\Admin\AppData\Local\Temp\crashed_by_vohr.mp3"

C:\Program Files (x86)\Windows Media Player\setup_wm.exe

"C:\Program Files (x86)\Windows Media Player\setup_wm.exe" /RunOnce:"C:\Program Files (x86)\Windows Media Player\wmplayer.exe" /prefetch:6 /Open "C:\Users\Admin\AppData\Local\Temp\crashed_by_vohr.mp3"

C:\Windows\SysWOW64\unregmp2.exe

"C:\Windows\System32\unregmp2.exe" /AsyncFirstLogon

C:\Windows\system32\unregmp2.exe

"C:\Windows\SysNative\unregmp2.exe" /AsyncFirstLogon /REENTRANT

Network

Country Destination Domain Proto
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 64.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 195.233.44.23.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 140.71.91.104.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 34.197.79.40.in-addr.arpa udp

Files

C:\Users\Admin\AppData\Local\Temp\wmsetup.log

MD5 a20a490b10b140c3aafe92d29dadf43d
SHA1 1af47a90ee4dad2f65a0d14f0e0496bdaed26f97
SHA256 65b2ba1030eddd7228db161c0528849a9c8187125fe95a981f22260bfa7e80e5
SHA512 7fda0abf63406147529c63c46f6b6b2f772864fc2ebd32c678d9fca236a3f473864800103c2fb67790c006cd2eacff4ab2ce3751f4c9480e355d97e8f4812efb

C:\Users\Admin\AppData\Local\Microsoft\Windows Media\12.0\WMSDKNS.XML

MD5 7050d5ae8acfbe560fa11073fef8185d
SHA1 5bc38e77ff06785fe0aec5a345c4ccd15752560e
SHA256 cb87767c4a384c24e4a0f88455f59101b1ae7b4fb8de8a5adb4136c5f7ee545b
SHA512 a7a295ac8921bb3dde58d4bcde9372ed59def61d4b7699057274960fa8c1d1a1daff834a93f7a0698e9e5c16db43af05e9fd2d6d7c9232f7d26ffcff5fc5900b

C:\Users\Admin\AppData\Local\Microsoft\Media Player\CurrentDatabase_400.wmdb

MD5 987a07b978cfe12e4ce45e513ef86619
SHA1 22eec9a9b2e83ad33bedc59e3205f86590b7d40c
SHA256 f1a4a978ce1c4731df1594043135cf58d084fdf129dd1c8e4507c9e06eac5ea8
SHA512 39b86540e4d35c84609ef66537b5aa02058e3d4293f902127c7d4eac8ffc65920cb5c69a77552fc085687eed66e38367f83c177046d0ecb8e6d135463cc142aa