e8fe2bcaf0045e391f9c979a710605994d7d19e7ab072cc37afd58e06153d0d3

Analysis

max time kernel
148s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
12/08/2024, 12:35

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General

Target

beep.wav
Size

96KB
MD5

9557be8f4c0cef2ee6d14652ed46bef2
SHA1

55038245a9f8c01b50e4983d59c5d4b199412b42
SHA256

71406a214249d59035d58bb7f9f2ed203317a107653d08ff6f3cc54666e793fb
SHA512

05fe0eb1be1dc042f2dcba8c199ce4bbd15c64aaa3f30c1b3efee4f206e5eb63182629cc808a4bf8072c18c1ec36c51588a801aa061ee4dd8e75ac2e7ccf7e21
SSDEEP

768:mkkL+Dj3PVRRRAiIRJY4ayRviX247XA3IFd5Q2o11qdfd11X7E5v6+B+:mj+Dj3PzpI/tpR6zD/d59ovS11rki+A

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)	\??\V:	unregmp2.exe
File opened (read-only)	\??\W:	unregmp2.exe
File opened (read-only)	\??\E:	wmplayer.exe
File opened (read-only)	\??\H:	wmplayer.exe
File opened (read-only)	\??\G:	unregmp2.exe
File opened (read-only)	\??\H:	unregmp2.exe
File opened (read-only)	\??\K:	unregmp2.exe
File opened (read-only)	\??\Q:	unregmp2.exe
File opened (read-only)	\??\I:	wmplayer.exe
File opened (read-only)	\??\R:	wmplayer.exe
File opened (read-only)	\??\S:	wmplayer.exe
File opened (read-only)	\??\J:	unregmp2.exe
File opened (read-only)	\??\A:	wmplayer.exe
File opened (read-only)	\??\B:	wmplayer.exe
File opened (read-only)	\??\J:	wmplayer.exe
File opened (read-only)	\??\N:	wmplayer.exe
File opened (read-only)	\??\L:	unregmp2.exe
File opened (read-only)	\??\O:	unregmp2.exe
File opened (read-only)	\??\Y:	unregmp2.exe
File opened (read-only)	\??\Z:	unregmp2.exe
File opened (read-only)	\??\I:	unregmp2.exe
File opened (read-only)	\??\M:	unregmp2.exe
File opened (read-only)	\??\K:	wmplayer.exe
File opened (read-only)	\??\Z:	wmplayer.exe
File opened (read-only)	\??\O:	wmplayer.exe
File opened (read-only)	\??\P:	wmplayer.exe
File opened (read-only)	\??\V:	wmplayer.exe
File opened (read-only)	\??\X:	wmplayer.exe
File opened (read-only)	\??\E:	unregmp2.exe
File opened (read-only)	\??\S:	unregmp2.exe
File opened (read-only)	\??\T:	unregmp2.exe
File opened (read-only)	\??\L:	wmplayer.exe
File opened (read-only)	\??\Q:	wmplayer.exe
File opened (read-only)	\??\U:	wmplayer.exe
File opened (read-only)	\??\W:	wmplayer.exe
File opened (read-only)	\??\B:	unregmp2.exe
File opened (read-only)	\??\P:	unregmp2.exe
File opened (read-only)	\??\X:	unregmp2.exe
File opened (read-only)	\??\G:	wmplayer.exe
File opened (read-only)	\??\A:	unregmp2.exe
File opened (read-only)	\??\N:	unregmp2.exe
File opened (read-only)	\??\U:	unregmp2.exe
File opened (read-only)	\??\Y:	wmplayer.exe
File opened (read-only)	\??\R:	unregmp2.exe
File opened (read-only)	\??\M:	wmplayer.exe
File opened (read-only)	\??\T:	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	wmplayer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	unregmp2.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppModel\Deployment\Package\*\S-1-5-21-1194130065-3471212556-1656947724-1000\{B0FA008F-9CF1-4AF1-9FF4-AAD93B6EB867}	wmplayer.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeShutdownPrivilege	2212	wmplayer.exe
Token: SeCreatePagefilePrivilege	2212	wmplayer.exe
Token: SeShutdownPrivilege	1528	unregmp2.exe
Token: SeCreatePagefilePrivilege	1528	unregmp2.exe
Token: 33	4748	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	4748	AUDIODG.EXE
Token: SeShutdownPrivilege	2212	wmplayer.exe
Token: SeCreatePagefilePrivilege	2212	wmplayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2212	wmplayer.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2212 wrote to memory of 4428	2212	wmplayer.exe	87
PID 2212 wrote to memory of 4428	2212	wmplayer.exe	87
PID 2212 wrote to memory of 4428	2212	wmplayer.exe	87
PID 4428 wrote to memory of 1528	4428	unregmp2.exe	89
PID 4428 wrote to memory of 1528	4428	unregmp2.exe	89

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\beep.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:2212
- C:\Windows\SysWOW64\unregmp2.exe
  "C:\Windows\System32\unregmp2.exe" /AsyncFirstLogon
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4428
- - C:\Windows\system32\unregmp2.exe
    "C:\Windows\SysNative\unregmp2.exe" /AsyncFirstLogon /REENTRANT
    3⤵
    - Enumerates connected drives
    - Suspicious use of AdjustPrivilegeToken
    PID:1528

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation -p -s upnphost
1⤵
- Drops file in Windows directory
PID:1860

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x510 0x380
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4748

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
64KB

MD5
987a07b978cfe12e4ce45e513ef86619

SHA1
22eec9a9b2e83ad33bedc59e3205f86590b7d40c

SHA256
f1a4a978ce1c4731df1594043135cf58d084fdf129dd1c8e4507c9e06eac5ea8

SHA512
39b86540e4d35c84609ef66537b5aa02058e3d4293f902127c7d4eac8ffc65920cb5c69a77552fc085687eed66e38367f83c177046d0ecb8e6d135463cc142aa

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

Filesize
1024KB

MD5
ff2b393f588e246897e72ff1c4dbf41d

SHA1
6f301d20417fac3be98c22afc946709827205a9d

SHA256
4a902f68c85d4c3d51ee8a4d14a419bb7bd51c722069b64942d38f42bf1711e8

SHA512
543dad74d5644da9d3edc752bbdc9268a18dc6e9bcb1d004dd0bda4148cbbbd48bdd7cf232d6c91270b6e5599101a18c45623884a42e36159b0f511c3239c5c9

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

Filesize
68KB

MD5
d9eab54b0259cbb451c029e9da1f739a

SHA1
a3d67640c035375693ceb293b5cfea5faf056163

SHA256
2dee81cded28efd68016a6cac1898021bf4d02123af5297b4e6acb090658e9b5

SHA512
c1c51df63322a1a5ae243d6415e2a42acd97c47d43c1579fe1422ba7246e30d4dd850c0c0e3a669c1bfddd0ea82918cf9a59bfdd8010378223ccc74569250360

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
7050d5ae8acfbe560fa11073fef8185d

SHA1
5bc38e77ff06785fe0aec5a345c4ccd15752560e

SHA256
cb87767c4a384c24e4a0f88455f59101b1ae7b4fb8de8a5adb4136c5f7ee545b

SHA512
a7a295ac8921bb3dde58d4bcde9372ed59def61d4b7699057274960fa8c1d1a1daff834a93f7a0698e9e5c16db43af05e9fd2d6d7c9232f7d26ffcff5fc5900b

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

Filesize
1KB

MD5
f1a4c5938aa073036ce00678218c64ab

SHA1
b272947e0664525664d40d14310f22e84287d5f0

SHA256
067511032cf70be5cd66500bf97e3be8474992808555bce8f2656935f399ec5d

SHA512
e3b10f0ba25b863651664e6fe7b37d537fa6997aae1a7d7590e7f668dca6e4d8da07bc8d7a271f41c1a85635ecf0b0b4c7832e5c497510eb9756c89d810fa1fa

Download Submit
memory/2212-32-0x0000000005180000-0x0000000005190000-memory.dmp

Filesize
64KB

Download
memory/2212-33-0x0000000005180000-0x0000000005190000-memory.dmp

Filesize
64KB

Download
memory/2212-31-0x0000000005180000-0x0000000005190000-memory.dmp

Filesize
64KB

Download
memory/2212-34-0x0000000005180000-0x0000000005190000-memory.dmp

Filesize
64KB

Download
memory/2212-36-0x0000000005180000-0x0000000005190000-memory.dmp

Filesize
64KB

Download
memory/2212-35-0x0000000005180000-0x0000000005190000-memory.dmp

Filesize
64KB

Download