bbb0689503fdae50b3ce0e9f6c95cb8fcbf6b565e7847e43dbaedd42d37c2849

Analysis

user interaction
yes
max time kernel
44s
max time network
32s
platform
windows10-2004_x64
resource
win10v2004-20260911-en
resource tags

arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
23/10/2026, 19:55

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General

Target
L4MYNOQ72.wav
Size 102KB
Sample261023-yncvbsdv7s
SHA256 bbb0689503fdae50b3ce0e9f6c95cb8fcbf6b565e7847e43dbaedd42d37c2849
MD5 ec7ffee44b98eca62033cc6028c541de
SHA1 45178d4ff4a90cafd13917f1597135131bfe59ee
SHA512 817e2f21c4e3c3871fcdabda1f9fcd730f513677f7e9ba98927dbbdd0825c216b7dad60ae0b2401c54f23bf7f3ee43e11914abe408c83af466d1f0448a3b458f
SSDEEP 1536:4HJzeAKpjoRziLDqXRDYRKDwhOS9BCTir0RUFUDz7gMX7ONNkkkSfHcq8sFyda:mBRzinqGPhOwBCTiYCUgs2NkrANvyQ
TLSH
T131A37B7E16D18B0818887FE9A926E858914EFF47BDACF84D4E00771643B77D68DEE081
MD5 SHA1 SHA512 SSDEEP TLSH

Score

6^/10

discovery

Malware Config

Signatures

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)	\??\S:	wmplayer.exe
File opened (read-only)	\??\Y:	wmplayer.exe
File opened (read-only)	\??\E:	unregmp2.exe
File opened (read-only)	\??\J:	unregmp2.exe
File opened (read-only)	\??\Q:	unregmp2.exe
File opened (read-only)	\??\I:	wmplayer.exe
File opened (read-only)	\??\M:	wmplayer.exe
File opened (read-only)	\??\V:	wmplayer.exe
File opened (read-only)	\??\X:	wmplayer.exe
File opened (read-only)	\??\A:	unregmp2.exe
File opened (read-only)	\??\K:	unregmp2.exe
File opened (read-only)	\??\Z:	unregmp2.exe
File opened (read-only)	\??\A:	wmplayer.exe
File opened (read-only)	\??\G:	wmplayer.exe
File opened (read-only)	\??\T:	wmplayer.exe
File opened (read-only)	\??\W:	wmplayer.exe
File opened (read-only)	\??\Z:	wmplayer.exe
File opened (read-only)	\??\G:	unregmp2.exe
File opened (read-only)	\??\I:	unregmp2.exe
File opened (read-only)	\??\N:	unregmp2.exe
File opened (read-only)	\??\S:	unregmp2.exe
File opened (read-only)	\??\U:	unregmp2.exe
File opened (read-only)	\??\Y:	unregmp2.exe
File opened (read-only)	\??\E:	wmplayer.exe
File opened (read-only)	\??\H:	wmplayer.exe
File opened (read-only)	\??\B:	unregmp2.exe
File opened (read-only)	\??\L:	unregmp2.exe
File opened (read-only)	\??\R:	unregmp2.exe
File opened (read-only)	\??\L:	wmplayer.exe
File opened (read-only)	\??\P:	wmplayer.exe
File opened (read-only)	\??\Q:	wmplayer.exe
File opened (read-only)	\??\R:	wmplayer.exe
File opened (read-only)	\??\P:	unregmp2.exe
File opened (read-only)	\??\T:	unregmp2.exe
File opened (read-only)	\??\J:	wmplayer.exe
File opened (read-only)	\??\M:	unregmp2.exe
File opened (read-only)	\??\O:	unregmp2.exe
File opened (read-only)	\??\K:	wmplayer.exe
File opened (read-only)	\??\U:	wmplayer.exe
File opened (read-only)	\??\H:	unregmp2.exe
File opened (read-only)	\??\W:	unregmp2.exe
File opened (read-only)	\??\B:	wmplayer.exe
File opened (read-only)	\??\N:	wmplayer.exe
File opened (read-only)	\??\O:	wmplayer.exe
File opened (read-only)	\??\V:	unregmp2.exe
File opened (read-only)	\??\X:	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-1-5-21-747854149-4118156852-591593384-1000\{48A82854-DDFE-4341-A548-3CA49D0A8708}	wmplayer.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	1616	wmplayer.exe
Token: SeCreatePagefilePrivilege	1616	wmplayer.exe
Token: SeShutdownPrivilege	4368	unregmp2.exe
Token: SeCreatePagefilePrivilege	4368	unregmp2.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1616	wmplayer.exe
1616	wmplayer.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 1616 wrote to memory of 4848	1616	wmplayer.exe	85
PID 4848 wrote to memory of 4368	4848	unregmp2.exe	86

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\L4MYNOQ72.wav"
1⤵
- 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:1616
- C:\Windows\SysWOW64\unregmp2.exe
  "C:\Windows\System32\unregmp2.exe" /AsyncFirstLogon
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4848
- - C:\Windows\system32\unregmp2.exe
    "C:\Windows\SysNative\unregmp2.exe" /AsyncFirstLogon /REENTRANT
    3⤵
    - Enumerates connected drives
    - Suspicious use of AdjustPrivilegeToken
    PID:4368

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation -p -s upnphost
1⤵
- Drops file in Windows directory
PID:2280

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:4508

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

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Downloads

CurrentDatabase_400.wmdb

Path C:\Users\Admin\AppData\Local\Microsoft\Media Player\CurrentDatabase_400.wmdb
Size 256KB
SHA256 eb897bf202d32f067728f1b666eb16e9926557efa8676b72db11411013030184
MD5 563088ad0f20fabf9dd62c6ba8ae1636
SHA1 f9cd2fd153afa1a12ff990cf27c32b8c9c44e878
SHA512 8229dfb1d96b6a34b91b1e5c463833e7859331be880f585c48af1ba0ace0465ac755c7f22a9e6f30284266165f850e8f85af76157eea8136b2d6f79db02d3092
SSDEEP 768:v7KGVp3zT13VuI61HOdrrA9abhr1vfEwPRzitFrz:59
TLSH
T16844FF37D4A1B094DB2CB471E2AC0F88B973240701E415845FF8A9BDB7277D6861F6EA
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 469b7cbc0202d53418af9f19c877a06748edb67c980c58e205c9c0c7ebdcc1be
MD5 d417bf3041c8b1dcc6852bbcb656e1b2
SHA1 8ecfc9f64499f0346b54b619f036e45678d58a4c
SHA512 9e299ef61271ac299661cf3fe65d55b7b7e0e11cc94cb0a69cff92dc878b14728b8ab1c1bbf899eb005a6bda06310423b3ef80e3ea4ad63ccd07e5c89b639073
SSDEEP 768:l0aleDxcg7KGVp3zT13VuI61HOdrrA9abhr8fEwPRzitFrzAqUmNKX08oJImdbaZ:jZP2tFP3vqY8lqEMNrTaBacg
TLSH
T16B258437D190B0C5CE2C7171E9ED8F09BA63B10B11A052465FF8A57E7A633D98D0B1EA
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 997dcd4746ed5220bc44f85e69d7b3edf87458ed12b009c1ef36a6c11fc009b6
MD5 b94cf46bdc3bf114d76f1741e1cdbdd2
SHA1 b3b283321ad9565f9d45f3fec2e9aaab81330c8a
SHA512 5d7bda069a74617a47ec9011e637813cbc6ddd3f1e21a7d553cc6c65ec746d96ed1d269c63694992bc4f5cc89f482b76202cb7d5a486982582cb797b4277e39e
SSDEEP 96:FlrE6mlt9NXteUMUst87XtVUMbstyUMlstnOXt0L2tFLXtvt2AtWtlxuvZN/8xu9:E6nanHnylxc3Exc34xc3
TLSH
T13F637B40A3E99959F3F71EB36AFAA6131F7678A05E25C60C12A4824D0C60F1CED31B67
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

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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 ff0c97d5d2f168fda16830059425ac3ee58803cf0f89bfd93791f1b6810e2438
MD5 6cb3efc18ea66225584caeed03aeb23c
SHA1 9f148b931a2b78f2d8e221effbd69ad8b43ac689
SHA512 70088f5b972592b94988275cf2575707fcfd84fb450b6b21750cc32806363742bedf5e678987d70429b2b229928ecf7066304f39ad6065d5a29a8eb21ed238fe
TLSH
T1E9213B571B8ED8708AE01BE71DEC8E257377C7CA87A0D165B349A0394C0716D5B3D16D
MD5 SHA1 SHA512 TLSH

Submit Download

memory/1616-35-0x0000000004F40000-0x0000000004F50000-memory.dmp

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memory/1616-31-0x0000000004F40000-0x0000000004F50000-memory.dmp

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memory/1616-30-0x0000000004F40000-0x0000000004F50000-memory.dmp

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memory/1616-34-0x0000000004F40000-0x0000000004F50000-memory.dmp

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memory/1616-33-0x0000000004F40000-0x0000000004F50000-memory.dmp

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memory/1616-37-0x0000000004F40000-0x0000000004F50000-memory.dmp

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memory/1616-40-0x0000000004F40000-0x0000000004F50000-memory.dmp

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memory/1616-39-0x0000000004F40000-0x0000000004F50000-memory.dmp

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memory/1616-38-0x0000000004F40000-0x0000000004F50000-memory.dmp

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memory/1616-42-0x0000000004F40000-0x0000000004F50000-memory.dmp

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memory/1616-41-0x0000000004F40000-0x0000000004F50000-memory.dmp

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memory/1616-32-0x0000000004F40000-0x0000000004F50000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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