3c133f67bed07aa7eed0c030a130dcf7c72a24848e7ebc9a4e00102ad2f99cde

Analysis

max time kernel
150s
max time network
135s
platform
windows11-21h2_x64
resource
win11-20241007-en
resource tags

arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
submitted
12-10-2024 17:56

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General

Target

data/lclick.wav
Size

69KB
MD5

edc287a54e68f13033dd06a688574cde
SHA1

4d20d2d093de6d0b3a2521bfbe2d29afd8b16dcc
SHA256

5c03d7d2366592d9e35264b957131ddea2676fe505680de70f5e0878f70ce0c5
SHA512

0fafd1e1041d89362bc66b1fcc07ed7b16db578d2b531fd6093c4eb267438db78d26bf5b5a2f5f102137d4935957215ac00451915a200cbf82c5ef5a8aaca2a4
SSDEEP

768:8ElMjPf1wNlVLYEtn316Lq1uu7ZptHB0kxOC7wTze6P7aBOBejLI:vUeNlH/6OMap16kxwTze6P7Q8ejLI

Score

6^/10

discovery

Malware Config

Signatures

Drops desktop.ini file(s) 7 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Music\desktop.ini	wmplayer.exe
File opened for modification	C:\Users\Public\desktop.ini	wmplayer.exe
File opened for modification	C:\Users\Public\Music\desktop.ini	wmplayer.exe
File opened for modification	C:\Users\Admin\Videos\desktop.ini	wmplayer.exe
File opened for modification	C:\Users\Public\Videos\desktop.ini	wmplayer.exe
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	wmplayer.exe
File opened for modification	C:\Users\Public\Pictures\desktop.ini	wmplayer.exe

Enumerates connected drives 3 TTPs 46 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\L:	unregmp2.exe
File opened (read-only)	\??\O:	unregmp2.exe
File opened (read-only)	\??\M:	wmplayer.exe
File opened (read-only)	\??\S:	wmplayer.exe
File opened (read-only)	\??\V:	wmplayer.exe
File opened (read-only)	\??\X:	wmplayer.exe
File opened (read-only)	\??\Z:	wmplayer.exe
File opened (read-only)	\??\U:	unregmp2.exe
File opened (read-only)	\??\Z:	unregmp2.exe
File opened (read-only)	\??\B:	wmplayer.exe
File opened (read-only)	\??\E:	wmplayer.exe
File opened (read-only)	\??\N:	wmplayer.exe
File opened (read-only)	\??\R:	wmplayer.exe
File opened (read-only)	\??\G:	unregmp2.exe
File opened (read-only)	\??\K:	unregmp2.exe
File opened (read-only)	\??\H:	wmplayer.exe
File opened (read-only)	\??\P:	wmplayer.exe
File opened (read-only)	\??\P:	unregmp2.exe
File opened (read-only)	\??\V:	unregmp2.exe
File opened (read-only)	\??\Y:	unregmp2.exe
File opened (read-only)	\??\W:	wmplayer.exe
File opened (read-only)	\??\A:	wmplayer.exe
File opened (read-only)	\??\I:	wmplayer.exe
File opened (read-only)	\??\B:	unregmp2.exe
File opened (read-only)	\??\E:	unregmp2.exe
File opened (read-only)	\??\I:	unregmp2.exe
File opened (read-only)	\??\J:	unregmp2.exe
File opened (read-only)	\??\R:	unregmp2.exe
File opened (read-only)	\??\X:	unregmp2.exe
File opened (read-only)	\??\O:	wmplayer.exe
File opened (read-only)	\??\H:	unregmp2.exe
File opened (read-only)	\??\N:	unregmp2.exe
File opened (read-only)	\??\W:	unregmp2.exe
File opened (read-only)	\??\G:	wmplayer.exe
File opened (read-only)	\??\J:	wmplayer.exe
File opened (read-only)	\??\L:	wmplayer.exe
File opened (read-only)	\??\S:	unregmp2.exe
File opened (read-only)	\??\T:	unregmp2.exe
File opened (read-only)	\??\T:	wmplayer.exe
File opened (read-only)	\??\Y:	wmplayer.exe
File opened (read-only)	\??\A:	unregmp2.exe
File opened (read-only)	\??\M:	unregmp2.exe
File opened (read-only)	\??\Q:	unregmp2.exe
File opened (read-only)	\??\K:	wmplayer.exe
File opened (read-only)	\??\Q:	wmplayer.exe
File opened (read-only)	\??\U:	wmplayer.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\ServiceProfiles\LocalService\AppData\Roaming\Microsoft\UPnP Device Host\upnphost\udhisapi.dll	svchost.exe
File opened for modification	C:\Windows\ServiceProfiles\LocalService\AppData\Roaming\Microsoft\UPnP Device Host\upnphost\udhisapi.dll	svchost.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	unregmp2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wmplayer.exe

Modifies registry class 3 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\MIME\Database\Content Type\application/x-wmplayer\CLSID = "{cd3afa96-b84f-48f0-9393-7edc34128127}"	wmplayer.exe
Key created	\REGISTRY\MACHINE\Software\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppModel\Deployment\Package\*\S-1-5-21-3587106988-279496464-3440778474-1000\{50CE72CA-7645-43D5-86A3-E53BA9F82DD0}	wmplayer.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\MIME\Database\Content Type\application/x-wmplayer	wmplayer.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeShutdownPrivilege	4852	wmplayer.exe
Token: SeCreatePagefilePrivilege	4852	wmplayer.exe
Token: SeShutdownPrivilege	2700	unregmp2.exe
Token: SeCreatePagefilePrivilege	2700	unregmp2.exe
Token: 33	4708	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	4708	AUDIODG.EXE
Token: SeShutdownPrivilege	4852	wmplayer.exe
Token: SeCreatePagefilePrivilege	4852	wmplayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4852	wmplayer.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4852 wrote to memory of 4460	4852	wmplayer.exe	77
PID 4852 wrote to memory of 4460	4852	wmplayer.exe	77
PID 4852 wrote to memory of 4460	4852	wmplayer.exe	77
PID 4460 wrote to memory of 2700	4460	unregmp2.exe	78
PID 4460 wrote to memory of 2700	4460	unregmp2.exe	78

C:\Program Files (x86)\Windows Media Player\wmplayer.exe
"C:\Program Files (x86)\Windows Media Player\wmplayer.exe" /Open "C:\Users\Admin\AppData\Local\Temp\data\lclick.wav"
1⤵
- Drops desktop.ini file(s)
- Enumerates connected drives
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:4852
- C:\Windows\SysWOW64\unregmp2.exe
  "C:\Windows\System32\unregmp2.exe" /AsyncFirstLogon
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4460
- - C:\Windows\system32\unregmp2.exe
    "C:\Windows\SysNative\unregmp2.exe" /AsyncFirstLogon /REENTRANT
    3⤵
    - Enumerates connected drives
    - Suspicious use of AdjustPrivilegeToken
    PID:2700

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation -p -s upnphost
1⤵
- Drops file in Windows directory
PID:2652

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x00000000000004DC 0x00000000000004C8
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4708

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
256KB

MD5
1a0295014678e91e7fea0a79074d6ffc

SHA1
f93a33dfd19a09d92174a17f0912440ddb1479a0

SHA256
fba2e401545352472136e5c71b0596b9125ddcfe2b87c439d8567cb2dad16745

SHA512
d7aec99cf127bf009bad534f293b65ce93ed08c650312a32ea670b0cf09dcaa0906962d9b29ce6c078396885e8ce55bf5ae5598c2480fd508ebddd111bd6c882

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

Filesize
1024KB

MD5
b16bb521c10f4504b3ba55883a305a06

SHA1
83b4492c4aa33b345c6aa252c117fe4a71455d40

SHA256
2de509f4df010e9fd322df0101ac1dac22b8364022274102f8bb0c06b949ee13

SHA512
dcec4edb648c3c6dc98b1b2e713c835c0d5f00bed20b5a21a8cb5993cb37bf3dbce7a55bf77cd2b88c1854e0867362cfc8ff1320813656eecb4d83a78d611dd7

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Media Player\LocalMLS_3.wmdb

Filesize
68KB

MD5
2c731e97dbb3e1c69b0c0de0c262ef3e

SHA1
d158017e0175dcb234eca939206cb30adeab3655

SHA256
90786f2c9d6034cc93795e6ee319a025995a876fa3558409bb5135521aabf646

SHA512
0810b471448ac4f1e3d97e7d3ac9b506c1c7dc6f0313d492688c8745e9661e92ae29e0d3d574f3dac0a972f96dc67c2ac8fcd8577499329b66bc717972d60c93

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows Media\12.0\WMSDKNS.DTD

Filesize
498B

MD5
90be2701c8112bebc6bd58a7de19846e

SHA1
a95be407036982392e2e684fb9ff6602ecad6f1e

SHA256
644fbcdc20086e16d57f31c5bad98be68d02b1c061938d2f5f91cbe88c871fbf

SHA512
d618b473b68b48d746c912ac5fc06c73b047bd35a44a6efc7a859fe1162d68015cf69da41a5db504dcbc4928e360c095b32a3b7792fcc6a38072e1ebd12e7cbe

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

Filesize
9KB

MD5
5433eab10c6b5c6d55b7cbd302426a39

SHA1
c5b1604b3350dab290d081eecd5389a895c58de5

SHA256
23dbf7014e99e93af5f2760f18ee1370274f06a453145c8d539b66d798dad131

SHA512
207b40d6bec65ab147f963a5f42263ae5bf39857987b439a4fa1647bf9b40e99cdc43ff68b7e2463aa9a948284126ac3c9c7af8350c91134b36d8b1a9c61fd34

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

Filesize
1KB

MD5
8cd97980b6d7cf66ebe6522984362f57

SHA1
e8cb99df313026c1da24a2dc0e8477ef266ebdab

SHA256
6ba24de3650342e6fd085ddf464131ee9b88360316f3dfa5b652b89fc16d086d

SHA512
9deeeb10e0c37242c4da32fd9e21a6538531458620967a55965ba2ff9d2340ab340d788d09ed4f3dde2328d9268c361930176e84172b5d018658ea52ae24f454

Download Submit
memory/4852-27-0x0000000004460000-0x0000000004470000-memory.dmp

Filesize
64KB

Download
memory/4852-29-0x0000000004460000-0x0000000004470000-memory.dmp

Filesize
64KB

Download
memory/4852-32-0x0000000004460000-0x0000000004470000-memory.dmp

Filesize
64KB

Download
memory/4852-31-0x0000000004460000-0x0000000004470000-memory.dmp

Filesize
64KB

Download
memory/4852-30-0x0000000004460000-0x0000000004470000-memory.dmp

Filesize
64KB

Download
memory/4852-28-0x0000000004460000-0x0000000004470000-memory.dmp

Filesize
64KB

Download
memory/4852-47-0x0000000006EF0000-0x0000000006F00000-memory.dmp

Filesize
64KB

Download