2fbf4b2193b876beed93b6773ed2aa61e035c0835ca052dda151f0946e1ea298

Analysis

max time kernel
148s
max time network
150s
platform
windows11-21h2_x64
resource
win11-20260513-en
resource tags

arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
19/05/2026, 17:18

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General

Target
video_fixed.mp4
Size 2.1MB
Sample260519-vvlt2act3l
SHA256 2fbf4b2193b876beed93b6773ed2aa61e035c0835ca052dda151f0946e1ea298
MD5 c65c58354a251b6ee0c9b0c23eda20c7
SHA1 2a162d337cbd3e2731eb40161b3ad3f0f1e4cefb
SHA512 e83c5aa8b69eefa4d898da6c7c7831d5582a3b5824d47e839fe8f9d0744e622c27f8f669d8c38a4c2d12a92f3a907fca59521bdff3872f5187bcc6ea424d4e64
SSDEEP 49152:I9WRHsrri1pMVD/6bH1G9HuV13c/VetegmL:IARgGpMVDCbHyHSUVR5
TLSH
T10AA533CC77701F16D3A8403F15A1C7116BFAEA316D1B430BBAAAA8194C9E3475F672C9
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\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
File opened for modification	C:\Users\Admin\Music\desktop.ini	wmplayer.exe
File opened for modification	C:\Users\Public\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)	\??\O:	unregmp2.exe
File opened (read-only)	\??\X:	unregmp2.exe
File opened (read-only)	\??\E:	wmplayer.exe
File opened (read-only)	\??\K:	wmplayer.exe
File opened (read-only)	\??\O:	wmplayer.exe
File opened (read-only)	\??\V:	wmplayer.exe
File opened (read-only)	\??\W:	wmplayer.exe
File opened (read-only)	\??\Z:	unregmp2.exe
File opened (read-only)	\??\H:	wmplayer.exe
File opened (read-only)	\??\M:	wmplayer.exe
File opened (read-only)	\??\P:	wmplayer.exe
File opened (read-only)	\??\Y:	wmplayer.exe
File opened (read-only)	\??\B:	unregmp2.exe
File opened (read-only)	\??\S:	unregmp2.exe
File opened (read-only)	\??\N:	wmplayer.exe
File opened (read-only)	\??\E:	unregmp2.exe
File opened (read-only)	\??\G:	unregmp2.exe
File opened (read-only)	\??\J:	unregmp2.exe
File opened (read-only)	\??\A:	wmplayer.exe
File opened (read-only)	\??\G:	wmplayer.exe
File opened (read-only)	\??\J:	wmplayer.exe
File opened (read-only)	\??\T:	wmplayer.exe
File opened (read-only)	\??\Z:	wmplayer.exe
File opened (read-only)	\??\H:	unregmp2.exe
File opened (read-only)	\??\R:	unregmp2.exe
File opened (read-only)	\??\W:	unregmp2.exe
File opened (read-only)	\??\Y:	unregmp2.exe
File opened (read-only)	\??\I:	wmplayer.exe
File opened (read-only)	\??\Q:	wmplayer.exe
File opened (read-only)	\??\P:	unregmp2.exe
File opened (read-only)	\??\K:	unregmp2.exe
File opened (read-only)	\??\L:	unregmp2.exe
File opened (read-only)	\??\N:	unregmp2.exe
File opened (read-only)	\??\V:	unregmp2.exe
File opened (read-only)	\??\B:	wmplayer.exe
File opened (read-only)	\??\L:	wmplayer.exe
File opened (read-only)	\??\S:	wmplayer.exe
File opened (read-only)	\??\I:	unregmp2.exe
File opened (read-only)	\??\Q:	unregmp2.exe
File opened (read-only)	\??\T:	unregmp2.exe
File opened (read-only)	\??\U:	unregmp2.exe
File opened (read-only)	\??\R:	wmplayer.exe
File opened (read-only)	\??\X:	wmplayer.exe
File opened (read-only)	\??\A:	unregmp2.exe
File opened (read-only)	\??\M:	unregmp2.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	wmplayer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	unregmp2.exe

Modifies registry class 3 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppModel\Deployment\Package\*\S-1-5-21-2824035265-2271499813-2042964211-1000\{DC1AFFFC-FAD2-43E9-BC84-96E066049F63}	wmplayer.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\MIME\Database\Content Type\application/x-wmplayer	wmplayer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\MIME\Database\Content Type\application/x-wmplayer\CLSID = "{cd3afa96-b84f-48f0-9393-7edc34128127}"	wmplayer.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeShutdownPrivilege	2152	wmplayer.exe
Token: SeCreatePagefilePrivilege	2152	wmplayer.exe
Token: SeShutdownPrivilege	808	unregmp2.exe
Token: SeCreatePagefilePrivilege	808	unregmp2.exe
Token: SeShutdownPrivilege	2152	wmplayer.exe
Token: SeCreatePagefilePrivilege	2152	wmplayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2152	wmplayer.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 2152 wrote to memory of 4500	2152	wmplayer.exe	81
PID 4500 wrote to memory of 808	4500	unregmp2.exe	82

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\video_fixed.mp4"
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:2152
- C:\Windows\SysWOW64\unregmp2.exe
  "C:\Windows\System32\unregmp2.exe" /AsyncFirstLogon
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4500
- - C:\Windows\system32\unregmp2.exe
    "C:\Windows\SysNative\unregmp2.exe" /AsyncFirstLogon /REENTRANT
    3⤵
    - Enumerates connected drives
    - Suspicious use of AdjustPrivilegeToken
    PID:808

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation -p -s upnphost
1⤵
- Drops file in Windows directory
PID:4676

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 640KB
SHA256 6905c0e0efb7ced966be6b357cdb0957bd4ca4ffd1a43b239edd6be365d6b777
MD5 f00a0914dc57e0272704fa3c6d07fbed
SHA1 8f05818e8098c54ba9a091b1ac0b69fca1e2c6ed
SHA512 b6950d2071105c22e2137999e9ed5047129be96f92128a0ac7fa66c26873a1f913818061c762dbf23920e335eca79142579e2597aaaa657fceabfc6c38ff7983
SSDEEP 768:Af0aleDxcg7KGVp3zT13VuI61HOdrrA9abhr3UzfEwPRzitFrzAqUmNKX0AooJIy:ANpZZQeoVYwxYCutFCJGAKt
TLSH
T16ED420379560A088CF3C31B1E2EC5F4CBE72A01A12E016461F74B67F7A237D99A1B5E5
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

CurrentDatabase_400.wmdb

Path C:\Users\Admin\AppData\Local\Microsoft\Media Player\CurrentDatabase_400.wmdb
Size 1024KB
SHA256 a0c294a8cbfbaa23352a4ce8b4847f4c8f01ba34a7c753cf40f87d85eb0f4315
MD5 398f02fd9609f19b308391635cd6d985
SHA1 c68bf98a606420235ef0401d2dd37d730e442ab7
SHA512 da6ca994ed3069eab79718e00ac6f916676e4aba970e6509d79579fcf5a51f1da1a617233550c6241573c683f3b05031bd68a6c85e4e9eaf5de8a63846c96ffb
SSDEEP 768:D0aleDxcg7KGVp3zT13VuI61HOdrrA9abhr8fEwPRzitFrzAqUmNKX08oJImdba3:9ZP2tFP3vqY8kqEMs4TaBacg
TLSH
T1BB258437D190B0C5CE2CB171E9ED8F09BA23B10B11A052465FF8A57E7A533D99D0B1EA
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 2e086294ebad93df490e625919042a3171a2843294760f56c3d74ab615f8df90
MD5 e7d0fe23ff02ad6dc2e012c68589046e
SHA1 84d9db44fc428e8251a23ebc1335b16d348c5e3a
SHA512 d3f9a36bbeb16c729226a7f34fbac237a2f976b0bae1adf1c3878895bad57e5feeefb185cac139925619d0fe0294b188a6078b693df7b9d1e04554d1155feca5
SSDEEP 96:NZ94OiggAAkbltGNXtzUMUst77XtQUMbstHUMlstwOXtJL2tOLXt6tFAtjt5t2:R4GdYnCnCn6J
TLSH
T18D63589426E41A68F3F72E717DFA29162E7AB8D21D35D00D4225834D0C71F29EE35F26
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

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

Submit Download

WMSDKNS.XML

Path C:\Users\Admin\AppData\Local\Microsoft\Windows Media\12.0\WMSDKNS.XML
Size 9KB
SHA256 cb87767c4a384c24e4a0f88455f59101b1ae7b4fb8de8a5adb4136c5f7ee545b
MD5 7050d5ae8acfbe560fa11073fef8185d
SHA1 5bc38e77ff06785fe0aec5a345c4ccd15752560e
SHA512 a7a295ac8921bb3dde58d4bcde9372ed59def61d4b7699057274960fa8c1d1a1daff834a93f7a0698e9e5c16db43af05e9fd2d6d7c9232f7d26ffcff5fc5900b
SSDEEP 96:/YkZRAF6zyHUhm77yB1pZYCEnfHrHH7B6xTGH+YCLV3zwULJEYCJWyHBt3zwFRh+:/2FV0bBPCfUdY
TLSH
T10022A2A194818DD206290E275DB95C0DDA8CE9D3832C24997C9EEB7FDFB1C00355FB6A
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

wmsetup.log

Path C:\Users\Admin\AppData\Local\Temp\wmsetup.log
Size 1KB
SHA256 a1b790ec20a4509ef8d0d813c04acd085e1ba79c8859e430b28c83b32573ee07
MD5 ad079e5ca292ad0b61a6905a5d255f05
SHA1 8806e46ee20f7f4754d18acdc4e84117444ccb89
SHA512 e6562ac4a05f3d8595bfbdc81a65976d07e96c8e02d96c278110074826d04577eccd66ebdec266b680e897af32bf42e7b9090dbb335bd4504a347ae3af528180
TLSH
T19D218E970A09A8B0DDA007B769DCCA35B3BAE7CF4754D016724EA81E480653DB33D15D
MD5 SHA1 SHA512 TLSH

Submit Download

memory/2152-36-0x00000000045B0000-0x00000000045C0000-memory.dmp

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memory/2152-35-0x00000000045B0000-0x00000000045C0000-memory.dmp

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memory/2152-34-0x00000000045B0000-0x00000000045C0000-memory.dmp

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memory/2152-37-0x00000000045B0000-0x00000000045C0000-memory.dmp

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memory/2152-38-0x0000000009740000-0x0000000009750000-memory.dmp

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memory/2152-39-0x0000000009740000-0x0000000009750000-memory.dmp

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memory/2152-41-0x00000000045B0000-0x00000000045C0000-memory.dmp

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memory/2152-40-0x00000000045B0000-0x00000000045C0000-memory.dmp

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memory/2152-42-0x0000000009740000-0x0000000009750000-memory.dmp

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memory/2152-33-0x00000000045B0000-0x00000000045C0000-memory.dmp

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memory/2152-32-0x00000000045B0000-0x00000000045C0000-memory.dmp

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memory/2152-59-0x0000000006AA0000-0x0000000006AB0000-memory.dmp

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memory/2152-61-0x0000000006AA0000-0x0000000006AB0000-memory.dmp

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Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads