e232359fdbaa1d46dcf56a5715a0ba4c700c93fb310f551a4a3afa912afdaed1

Analysis

max time kernel
146s
max time network
133s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
16-08-2024 18:05

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General

Target

Calamari/jacked_up.mp3
Size

4.0MB
MD5

66ec6b7ee0786cba5a3ae13e4e4e20ba
SHA1

612861268f56692069b60a0218826cbf8e593ede
SHA256

fd0aa203f284a09dab3b6a24118db8ed30ad5fad2591b3367111bf27eb4df617
SHA512

6ad4182771b0e983394a4446b61eb6b43793b6db85a3e9035823b053594ae88bbd5da595b83e817b4739f2b4c5dd209546e4264a76d397c9ad71771a64329d3b
SSDEEP

98304:Tz9Vs3NlAYgX+bHn8DqaXP8J3tqnZaAITKdNi5zAwY:TzyNCYbbHEI0ZOTUjwY

Score

6^/10

discovery

Malware Config

Signatures

Drops desktop.ini file(s) 7 IoCs

Processes:

wmplayer.exe

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

Processes:

unregmp2.exewmplayer.exe

description	ioc	process
File opened (read-only)	\??\E:	unregmp2.exe
File opened (read-only)	\??\K:	unregmp2.exe
File opened (read-only)	\??\Q:	unregmp2.exe
File opened (read-only)	\??\U:	unregmp2.exe
File opened (read-only)	\??\X:	unregmp2.exe
File opened (read-only)	\??\G:	wmplayer.exe
File opened (read-only)	\??\N:	wmplayer.exe
File opened (read-only)	\??\P:	wmplayer.exe
File opened (read-only)	\??\T:	wmplayer.exe
File opened (read-only)	\??\L:	unregmp2.exe
File opened (read-only)	\??\S:	unregmp2.exe
File opened (read-only)	\??\V:	unregmp2.exe
File opened (read-only)	\??\J:	wmplayer.exe
File opened (read-only)	\??\R:	wmplayer.exe
File opened (read-only)	\??\M:	unregmp2.exe
File opened (read-only)	\??\K:	wmplayer.exe
File opened (read-only)	\??\L:	wmplayer.exe
File opened (read-only)	\??\M:	wmplayer.exe
File opened (read-only)	\??\W:	wmplayer.exe
File opened (read-only)	\??\G:	unregmp2.exe
File opened (read-only)	\??\I:	unregmp2.exe
File opened (read-only)	\??\H:	wmplayer.exe
File opened (read-only)	\??\I:	wmplayer.exe
File opened (read-only)	\??\A:	unregmp2.exe
File opened (read-only)	\??\H:	unregmp2.exe
File opened (read-only)	\??\O:	unregmp2.exe
File opened (read-only)	\??\P:	unregmp2.exe
File opened (read-only)	\??\Z:	unregmp2.exe
File opened (read-only)	\??\B:	wmplayer.exe
File opened (read-only)	\??\Y:	wmplayer.exe
File opened (read-only)	\??\U:	wmplayer.exe
File opened (read-only)	\??\Z:	wmplayer.exe
File opened (read-only)	\??\J:	unregmp2.exe
File opened (read-only)	\??\E:	wmplayer.exe
File opened (read-only)	\??\O:	wmplayer.exe
File opened (read-only)	\??\S:	wmplayer.exe
File opened (read-only)	\??\V:	wmplayer.exe
File opened (read-only)	\??\B:	unregmp2.exe
File opened (read-only)	\??\N:	unregmp2.exe
File opened (read-only)	\??\R:	unregmp2.exe
File opened (read-only)	\??\T:	unregmp2.exe
File opened (read-only)	\??\W:	unregmp2.exe
File opened (read-only)	\??\Y:	unregmp2.exe
File opened (read-only)	\??\A:	wmplayer.exe
File opened (read-only)	\??\Q:	wmplayer.exe
File opened (read-only)	\??\X:	wmplayer.exe

Drops file in Windows directory 2 IoCs

Processes:

svchost.exe

description	ioc	process
File opened for modification	C:\Windows\ServiceProfiles\LocalService\AppData\Roaming\Microsoft\UPnP Device Host\upnphost\udhisapi.dll	svchost.exe
File created	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

Processes:

wmplayer.exeunregmp2.exe

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

Processes:

wmplayer.exe

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-1-5-21-1194130065-3471212556-1656947724-1000\{6053C28E-53A0-4282-B98E-01E7C530FE50}	wmplayer.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

Processes:

wmplayer.exeunregmp2.exeAUDIODG.EXE

description	pid	process
Token: SeShutdownPrivilege	2612	wmplayer.exe
Token: SeCreatePagefilePrivilege	2612	wmplayer.exe
Token: SeShutdownPrivilege	5052	unregmp2.exe
Token: SeCreatePagefilePrivilege	5052	unregmp2.exe
Token: 33	5068	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	5068	AUDIODG.EXE
Token: SeShutdownPrivilege	2612	wmplayer.exe
Token: SeCreatePagefilePrivilege	2612	wmplayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

wmplayer.exe

pid process

2612 wmplayer.exe

pid	process
2612	wmplayer.exe

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

wmplayer.exeunregmp2.exe

description	pid	process	target process
PID 2612 wrote to memory of 1956	2612	wmplayer.exe	unregmp2.exe
PID 2612 wrote to memory of 1956	2612	wmplayer.exe	unregmp2.exe
PID 2612 wrote to memory of 1956	2612	wmplayer.exe	unregmp2.exe
PID 1956 wrote to memory of 5052	1956	unregmp2.exe	unregmp2.exe
PID 1956 wrote to memory of 5052	1956	unregmp2.exe	unregmp2.exe

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\Calamari\jacked_up.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:2612

C:\Windows\SysWOW64\unregmp2.exe
"C:\Windows\System32\unregmp2.exe" /AsyncFirstLogon
2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1956

C:\Windows\system32\unregmp2.exe
"C:\Windows\SysNative\unregmp2.exe" /AsyncFirstLogon /REENTRANT
3⤵
- Enumerates connected drives
- Suspicious use of AdjustPrivilegeToken
PID:5052

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation -p -s upnphost
1⤵
- Drops file in Windows directory
PID:5096

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x424 0x50c
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:5068

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
311598449b80311a85ea6e194fdcd603

SHA1
43eab5903e0a0a03ca2e9966258ae4e6c5836680

SHA256
3747675968df1a8bc1d96f7f456147bcb88a62af239315fd10f1958c003e72a2

SHA512
ba81e6817d52918d06e9077d85bfcc9910858cbe9f16e4b3f629dc94bb190c426e9020af38dd1c1bbf5837397523c2b4e67c68638d2b1ba3c6a60fde34c1ae3c

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

Filesize
68KB

MD5
ee8a1e136b7334bc17d660b877d13b05

SHA1
7bbd6ad24e6aea796f4cff9243fda60d1d6e908c

SHA256
83e22c45c07bb190f86af23330b26a205820f4be368a43ebc1dc85b1b29fb748

SHA512
97eec613021a8fd993b3c19413512af62028e5ad728d63b7ca8e5c49e9ea64e670aef2dedae3c8bc5348c6026986f973539880cb7f928d1f364d9c1a0831de29

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.bak

Filesize
9KB

MD5
7050d5ae8acfbe560fa11073fef8185d

SHA1
5bc38e77ff06785fe0aec5a345c4ccd15752560e

SHA256
cb87767c4a384c24e4a0f88455f59101b1ae7b4fb8de8a5adb4136c5f7ee545b

SHA512
a7a295ac8921bb3dde58d4bcde9372ed59def61d4b7699057274960fa8c1d1a1daff834a93f7a0698e9e5c16db43af05e9fd2d6d7c9232f7d26ffcff5fc5900b

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

Filesize
1KB

MD5
e0ffc9065c7980c4a4078052cd9918e5

SHA1
6391b47a29e6b639f827d53ebb644552a9b13e16

SHA256
28d44ce1d9a966e4048db7f4f405f8e3b3f78ac43fbdbb6ef96485594db89802

SHA512
19d232d37ae4c0adcdeedae94e8a046a0f9ce2b9509571c6321834952e2c679ee0392c0349d38b8f9e7ac9fff7024d067b0b3a88f716b99321398efe33d584e2

Download Submit
memory/2612-34-0x0000000004890000-0x00000000048A0000-memory.dmp

Filesize
64KB

Download
memory/2612-32-0x0000000004890000-0x00000000048A0000-memory.dmp

Filesize
64KB

Download
memory/2612-36-0x0000000004890000-0x00000000048A0000-memory.dmp

Filesize
64KB

Download
memory/2612-35-0x0000000004890000-0x00000000048A0000-memory.dmp

Filesize
64KB

Download
memory/2612-33-0x0000000004890000-0x00000000048A0000-memory.dmp

Filesize
64KB

Download
memory/2612-31-0x0000000004890000-0x00000000048A0000-memory.dmp

Filesize
64KB

Download
memory/2612-51-0x0000000004930000-0x0000000004940000-memory.dmp

Filesize
64KB

Download