49ad2031484eb338e819bcd0b70d05658093291b5bcc889f28df3fde2b76d36a

Analysis

max time kernel
899s
max time network
396s
platform
windows11-21h2_x64
resource
win11-20260130-en
resource tags

arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
22/04/2026, 00:12

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General

Target
explosion.mp3
Size 103KB
Sample260422-ahdmnset6p
SHA256 49ad2031484eb338e819bcd0b70d05658093291b5bcc889f28df3fde2b76d36a
MD5 c4a80408b2c8238b02c1e92449391964
SHA1 3374e466159987dedd696c74d75ccbed4ae68a52
SHA512 afbe6f8799ae1dd9fcea18f41fdcfdf429ed60a51a7afbb9519e80683c27de4f2d075610154622ee7c368eef3e44828cef0224117ecabadec2e532c42dbca4ce
SSDEEP 1536:aR8mLHq2Jd6AqrVHIOJahTciR2UjdylZCD3dB54IsRju18WlnwGvHnDOe5ws:QHqhAMxAgQQCD3HuIx8WqUae5ws
TLSH
T1F9A302830B9551A9F1CB453C1F6F6488CF871EA658B5DFCE6318739212F38229792B4D
MD5 SHA1 SHA512 SSDEEP TLSH

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)	\??\Z:	unregmp2.exe
File opened (read-only)	\??\A:	wmplayer.exe
File opened (read-only)	\??\E:	wmplayer.exe
File opened (read-only)	\??\G:	wmplayer.exe
File opened (read-only)	\??\K:	wmplayer.exe
File opened (read-only)	\??\L:	wmplayer.exe
File opened (read-only)	\??\X:	unregmp2.exe
File opened (read-only)	\??\R:	wmplayer.exe
File opened (read-only)	\??\Z:	wmplayer.exe
File opened (read-only)	\??\I:	wmplayer.exe
File opened (read-only)	\??\S:	wmplayer.exe
File opened (read-only)	\??\V:	wmplayer.exe
File opened (read-only)	\??\B:	wmplayer.exe
File opened (read-only)	\??\E:	unregmp2.exe
File opened (read-only)	\??\U:	unregmp2.exe
File opened (read-only)	\??\M:	wmplayer.exe
File opened (read-only)	\??\N:	wmplayer.exe
File opened (read-only)	\??\O:	wmplayer.exe
File opened (read-only)	\??\X:	wmplayer.exe
File opened (read-only)	\??\A:	unregmp2.exe
File opened (read-only)	\??\O:	unregmp2.exe
File opened (read-only)	\??\P:	unregmp2.exe
File opened (read-only)	\??\H:	wmplayer.exe
File opened (read-only)	\??\J:	wmplayer.exe
File opened (read-only)	\??\Y:	wmplayer.exe
File opened (read-only)	\??\H:	unregmp2.exe
File opened (read-only)	\??\I:	unregmp2.exe
File opened (read-only)	\??\R:	unregmp2.exe
File opened (read-only)	\??\W:	unregmp2.exe
File opened (read-only)	\??\Q:	wmplayer.exe
File opened (read-only)	\??\U:	wmplayer.exe
File opened (read-only)	\??\B:	unregmp2.exe
File opened (read-only)	\??\G:	unregmp2.exe
File opened (read-only)	\??\M:	unregmp2.exe
File opened (read-only)	\??\S:	unregmp2.exe
File opened (read-only)	\??\P:	wmplayer.exe
File opened (read-only)	\??\J:	unregmp2.exe
File opened (read-only)	\??\L:	unregmp2.exe
File opened (read-only)	\??\N:	unregmp2.exe
File opened (read-only)	\??\Q:	unregmp2.exe
File opened (read-only)	\??\V:	unregmp2.exe
File opened (read-only)	\??\Y:	unregmp2.exe
File opened (read-only)	\??\T:	wmplayer.exe
File opened (read-only)	\??\W:	wmplayer.exe
File opened (read-only)	\??\K:	unregmp2.exe
File opened (read-only)	\??\T:	unregmp2.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-1-5-21-1383858298-2057492509-1726743289-1000\{4DCEDBAF-7510-4D51-AE95-3E7AF58EBD18}	wmplayer.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	4888	unregmp2.exe
Token: SeCreatePagefilePrivilege	4888	unregmp2.exe
Token: SeShutdownPrivilege	1872	wmplayer.exe
Token: SeCreatePagefilePrivilege	1872	wmplayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1872	wmplayer.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 1872 wrote to memory of 3228	1872	wmplayer.exe	80
PID 3228 wrote to memory of 4888	3228	unregmp2.exe	81

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\explosion.mp3"
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:1872
- C:\Windows\SysWOW64\unregmp2.exe
  "C:\Windows\System32\unregmp2.exe" /AsyncFirstLogon
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3228
- - C:\Windows\system32\unregmp2.exe
    "C:\Windows\SysNative\unregmp2.exe" /AsyncFirstLogon /REENTRANT
    3⤵
    - Enumerates connected drives
    - Suspicious use of AdjustPrivilegeToken
    PID:4888

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation -p -s upnphost
1⤵
- Drops file in Windows directory
PID:1504

Network

MITRE ATT&CK Enterprise v16

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

CurrentDatabase_400.wmdb

Path C:\Users\Admin\AppData\Local\Microsoft\Media Player\CurrentDatabase_400.wmdb
Size 256KB
SHA256 fba2e401545352472136e5c71b0596b9125ddcfe2b87c439d8567cb2dad16745
MD5 1a0295014678e91e7fea0a79074d6ffc
SHA1 f93a33dfd19a09d92174a17f0912440ddb1479a0
SHA512 d7aec99cf127bf009bad534f293b65ce93ed08c650312a32ea670b0cf09dcaa0906962d9b29ce6c078396885e8ce55bf5ae5598c2480fd508ebddd111bd6c882
SSDEEP 768:Af0aleDxcg7KGVp3zT13VuI61HOdrrA9abhr1vfEwPRzitFrz:A69
TLSH
T17D440137E5A0B084DF2CB571E2AC1F48BA73250B01E416465FF4A57DBB633D6890B1EA
MD5 SHA1 SHA512 SSDEEP TLSH

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CurrentDatabase_400.wmdb

Path C:\Users\Admin\AppData\Local\Microsoft\Media Player\CurrentDatabase_400.wmdb
Size 1024KB
SHA256 ecc5843a4f6cb6873cbf640e4b5eb3bc281b4ea420f588a34bd51b95965146c7
MD5 3978f4c1dd1ecebbd3e10d126097b613
SHA1 a9527b0e859eae0ad5f970a9286fa5e603829a5c
SHA512 652027e8899172c3af2ee4708b883c7eff0b8adfbb5398bdbe70aec16e82447221d9af2941f47306dc16641432ad3c3662f6ac61361c3db881b52bb11e7a8d57
SSDEEP 768:t0aleDxcg7KGVp3zT13VuI61HOdrrA9abhr8fEwPRzitFrzAqUmNKX08oJImdbah:bZP2tFP3vqY8jqEMjTaBacg
TLSH
T196258337D190B0C5CE2C7171E9ED8F09BA63B10B11A052465FF8A57E7A533D98D0B2EA
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

LocalMLS_3.wmdb

Path C:\Users\Admin\AppData\Local\Microsoft\Media Player\LocalMLS_3.wmdb
Size 68KB
SHA256 03274a836651bc78f3af998d359dc55506fa93c2225ba29f1722594a954135d1
MD5 fcafbae1540bbcb4f1b7ca9e1dd907b4
SHA1 23f58a88e92e894971a30ac938cf76d4484b795e
SHA512 e0746f32fa15b5d5c2dfd177068fd98a81569f13e9b141a138a1e689dbbdddd730fc2bf286bf600c1686f0c19d9dbd1018f18eee3c11ea5d326da20b70b74e00
SSDEEP 96:FtjW1mWkvNc1y4MBltUNXtNUMUstl7XteUMbst5UMlstaOXt3L2tcLXtktLAtdtT:YznSncn6D
TLSH
T1B063039023E81649F3FB7E712DF665266EBA38905E35D1AC4314425D0CB4F2ADE32B36
MD5 SHA1 SHA512 SSDEEP TLSH

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WMSDKNS.DTD

Path C:\Users\Admin\AppData\Local\Microsoft\Windows Media\12.0\WMSDKNS.DTD
Size 498B
SHA256 644fbcdc20086e16d57f31c5bad98be68d02b1c061938d2f5f91cbe88c871fbf
MD5 90be2701c8112bebc6bd58a7de19846e
SHA1 a95be407036982392e2e684fb9ff6602ecad6f1e
SHA512 d618b473b68b48d746c912ac5fc06c73b047bd35a44a6efc7a859fe1162d68015cf69da41a5db504dcbc4928e360c095b32a3b7792fcc6a38072e1ebd12e7cbe
TLSH
T15BF027AD4BE26C59323110903E78A0B0DD05F0B3645B3A6970CE5C7679E7D9C0407FD1
MD5 SHA1 SHA512 TLSH

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WMSDKNS.XML

Path C:\Users\Admin\AppData\Local\Microsoft\Windows Media\12.0\WMSDKNS.XML
Size 9KB
SHA256 23dbf7014e99e93af5f2760f18ee1370274f06a453145c8d539b66d798dad131
MD5 5433eab10c6b5c6d55b7cbd302426a39
SHA1 c5b1604b3350dab290d081eecd5389a895c58de5
SHA512 207b40d6bec65ab147f963a5f42263ae5bf39857987b439a4fa1647bf9b40e99cdc43ff68b7e2463aa9a948284126ac3c9c7af8350c91134b36d8b1a9c61fd34
SSDEEP 96:zkZRAF6zyHUhm77yB1pZYCEnfHrHHbB6xTGH+YCLV3zwULJEYCJWyHht3zwFRhRM:BFV0bBPCfUdY
TLSH
T1112292A194818DD206290E275DB95C0DDA8CE9D3822C24997C9EEB7FDFB1C00355FB6A
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

wmsetup.log

Path C:\Users\Admin\AppData\Local\Temp\wmsetup.log
Size 1KB
SHA256 ff0463275279e26a80231d08aef4fee5b08d584a4951dba84c437691cb487b90
MD5 2a3842c73497c4f94775cb12a2c7995a
SHA1 d21343033f94a7b5f65d5b9eb86898b1c48c7001
SHA512 4de0264698573274478c29460ce10ba009c64e55c127024aa714ace5659d998fb897b7285e703368ce33bd722c10a48adadbcf254224c80abbe87268cfe0686a
TLSH
T15021AD970A0A94B0DDA00BB769DCCA35737AE3CF0364D016B34E982E480513DB33E16D
MD5 SHA1 SHA512 TLSH

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memory/1872-32-0x0000000004C80000-0x0000000004C90000-memory.dmp

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memory/1872-29-0x0000000004C80000-0x0000000004C90000-memory.dmp

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memory/1872-31-0x0000000004C80000-0x0000000004C90000-memory.dmp

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memory/1872-30-0x0000000004C80000-0x0000000004C90000-memory.dmp

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memory/1872-34-0x0000000004C80000-0x0000000004C90000-memory.dmp

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memory/1872-33-0x0000000004C80000-0x0000000004C90000-memory.dmp

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memory/1872-36-0x0000000000E20000-0x0000000000E9B000-memory.dmp

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memory/1872-37-0x0000000004780000-0x0000000004788000-memory.dmp

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memory/3228-2-0x00000000012E0000-0x000000000135B000-memory.dmp

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memory/4888-27-0x000002775F1C0000-0x000002775F21D000-memory.dmp

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memory/4888-28-0x0000027761080000-0x000002776108C000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads