eab0cf5d172d9ef0cd49d7c7944be946d95235c634a48b12a4c450eb7f68d657

Resubmissions

15-08-2024 00:02

240815-abnjasybqj 6

13-08-2024 16:36

240813-t4lpysvapd 10

Analysis

max time kernel
78s
max time network
86s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
15-08-2024 00:02

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General

Target

nuclear_bombs.mp4
Size

188KB
MD5

89a4d69ff3c526730c4fd6c3c8b16cc2
SHA1

c5a41e374ce559c402e07eb63f94de7091ef3af3
SHA256

eab0cf5d172d9ef0cd49d7c7944be946d95235c634a48b12a4c450eb7f68d657
SHA512

c6288a36be86f7593a146f4b385a6389c48bc58b1fafdd32a32a7c710d3360204cb3b902166fad683aa012a409e547394b77aad24290d4a62b07012a50aa4124
SSDEEP

3072:WURDsJZX3lZAbWgdAALG96g5ehTtcq6Sm7bsxuTw53Fna6+:IJZlZAbRGALG96g5eHcq6SQk53Fp+

Score

6^/10

discovery

Malware Config

Signatures

Drops desktop.ini file(s) 7 IoCs

description	ioc	Process
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
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

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:	unregmp2.exe
File opened (read-only)	\??\X:	unregmp2.exe
File opened (read-only)	\??\Y:	wmplayer.exe
File opened (read-only)	\??\Z:	wmplayer.exe
File opened (read-only)	\??\Y:	unregmp2.exe
File opened (read-only)	\??\B:	wmplayer.exe
File opened (read-only)	\??\I:	wmplayer.exe
File opened (read-only)	\??\N:	wmplayer.exe
File opened (read-only)	\??\U:	wmplayer.exe
File opened (read-only)	\??\H:	wmplayer.exe
File opened (read-only)	\??\K:	wmplayer.exe
File opened (read-only)	\??\L:	wmplayer.exe
File opened (read-only)	\??\E:	unregmp2.exe
File opened (read-only)	\??\K:	unregmp2.exe
File opened (read-only)	\??\P:	unregmp2.exe
File opened (read-only)	\??\W:	unregmp2.exe
File opened (read-only)	\??\E:	wmplayer.exe
File opened (read-only)	\??\Q:	wmplayer.exe
File opened (read-only)	\??\S:	wmplayer.exe
File opened (read-only)	\??\T:	wmplayer.exe
File opened (read-only)	\??\W:	wmplayer.exe
File opened (read-only)	\??\V:	unregmp2.exe
File opened (read-only)	\??\A:	unregmp2.exe
File opened (read-only)	\??\B:	unregmp2.exe
File opened (read-only)	\??\H:	unregmp2.exe
File opened (read-only)	\??\N:	unregmp2.exe
File opened (read-only)	\??\O:	unregmp2.exe
File opened (read-only)	\??\Q:	unregmp2.exe
File opened (read-only)	\??\R:	wmplayer.exe
File opened (read-only)	\??\V:	wmplayer.exe
File opened (read-only)	\??\J:	wmplayer.exe
File opened (read-only)	\??\I:	unregmp2.exe
File opened (read-only)	\??\L:	unregmp2.exe
File opened (read-only)	\??\M:	unregmp2.exe
File opened (read-only)	\??\R:	unregmp2.exe
File opened (read-only)	\??\A:	wmplayer.exe
File opened (read-only)	\??\T:	unregmp2.exe
File opened (read-only)	\??\Z:	unregmp2.exe
File opened (read-only)	\??\M:	wmplayer.exe
File opened (read-only)	\??\O:	wmplayer.exe
File opened (read-only)	\??\X:	wmplayer.exe
File opened (read-only)	\??\G:	unregmp2.exe
File opened (read-only)	\??\J:	unregmp2.exe
File opened (read-only)	\??\U:	unregmp2.exe
File opened (read-only)	\??\G:	wmplayer.exe
File opened (read-only)	\??\P:	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\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
Key created	\REGISTRY\MACHINE\Software\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppModel\Deployment\Package\*\S-1-5-21-2718105630-359604950-2820636825-1000\{3BA8A169-7BD9-4238-927D-85E943F807E5}	wmplayer.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeShutdownPrivilege	2272	unregmp2.exe
Token: SeCreatePagefilePrivilege	2272	unregmp2.exe
Token: SeShutdownPrivilege	1264	wmplayer.exe
Token: SeCreatePagefilePrivilege	1264	wmplayer.exe
Token: 33	4892	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	4892	AUDIODG.EXE
Token: SeShutdownPrivilege	1264	wmplayer.exe
Token: SeCreatePagefilePrivilege	1264	wmplayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1264	wmplayer.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 1264 wrote to memory of 4208	1264	wmplayer.exe	87
PID 1264 wrote to memory of 4208	1264	wmplayer.exe	87
PID 1264 wrote to memory of 4208	1264	wmplayer.exe	87
PID 4208 wrote to memory of 2272	4208	unregmp2.exe	88
PID 4208 wrote to memory of 2272	4208	unregmp2.exe	88

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\nuclear_bombs.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:1264
- C:\Windows\SysWOW64\unregmp2.exe
  "C:\Windows\System32\unregmp2.exe" /AsyncFirstLogon
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4208
- - C:\Windows\system32\unregmp2.exe
    "C:\Windows\SysNative\unregmp2.exe" /AsyncFirstLogon /REENTRANT
    3⤵
    - Enumerates connected drives
    - Suspicious use of AdjustPrivilegeToken
    PID:2272

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation -p -s upnphost
1⤵
- Drops file in Windows directory
PID:668

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x4b8 0x2cc
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4892

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
563088ad0f20fabf9dd62c6ba8ae1636

SHA1
f9cd2fd153afa1a12ff990cf27c32b8c9c44e878

SHA256
eb897bf202d32f067728f1b666eb16e9926557efa8676b72db11411013030184

SHA512
8229dfb1d96b6a34b91b1e5c463833e7859331be880f585c48af1ba0ace0465ac755c7f22a9e6f30284266165f850e8f85af76157eea8136b2d6f79db02d3092

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

Filesize
1024KB

MD5
4b016541059127df004c027ce41d8b21

SHA1
cb34ddcf797140dae4ac63c68a0e964cf9ff48fa

SHA256
2858fbecfc0a46a5e5d429523d3a8e92efa601316aaba9387fd1f1d7f59e8cfe

SHA512
53da98b15c9c53b6781d8d9a7caa26222f4827845e40e91eb2ee48b0d9bcc4236cdec391b122dc60d486f1efbbe3845ddda3b87d20f6aa70471220bffaf4db07

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

Filesize
68KB

MD5
b96a81aa27124f6979f7c7b02b34f257

SHA1
a4de41b41af2cec64784f210979e51c68010a742

SHA256
b3d935d55e9e16fcea2c0d15f976f36f2253d81ac8fa7853972744af4f5859b8

SHA512
6d326c29ff8f1258f503363409ea92a8d2f62f2e842a34fcbb1ae0e031843be966abaf9bc679062f2e2a29a88c1de54d13be939f5e5e105308f546d6168b5d3a

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
d631aeaa9fa39ac4dc081d717a4c2952

SHA1
ca151b7882b1206f3bd4fff7ab817303f728d77a

SHA256
f902ec4ad8c3803a9fa34a409b209c97f5cedc027e66ae9a69ba55026e4d27ef

SHA512
9aa776be324cd324ce62b4a938c4031dc7f9009ef8f456c5d216f94771be52ad63f713d7160ef0b21c87eae543d88d976b612148db4c56522f6a712eee8441a8

Download Submit
memory/1264-33-0x0000000007950000-0x0000000007960000-memory.dmp

Filesize
64KB

Download
memory/1264-32-0x0000000004F00000-0x0000000004F10000-memory.dmp

Filesize
64KB

Download
memory/1264-31-0x0000000004F00000-0x0000000004F10000-memory.dmp

Filesize
64KB

Download
memory/1264-34-0x0000000007930000-0x0000000007940000-memory.dmp

Filesize
64KB

Download
memory/1264-35-0x0000000007930000-0x0000000007940000-memory.dmp

Filesize
64KB

Download
memory/1264-37-0x0000000004F00000-0x0000000004F10000-memory.dmp

Filesize
64KB

Download
memory/1264-36-0x0000000004F00000-0x0000000004F10000-memory.dmp

Filesize
64KB

Download
memory/1264-38-0x0000000007930000-0x0000000007940000-memory.dmp

Filesize
64KB

Download
memory/1264-30-0x0000000004F00000-0x0000000004F10000-memory.dmp

Filesize
64KB

Download
memory/1264-29-0x0000000004F00000-0x0000000004F10000-memory.dmp

Filesize
64KB

Download
memory/1264-53-0x00000000051D0000-0x00000000051E0000-memory.dmp

Filesize
64KB

Download