6d5ff2230c713e9372d23989c3ea247d814ffc6f19380be86f7bccf3c0b6ff91

Resubmissions

26/11/2024, 17:54

241126-whcw2aylbr 10

29/06/2024, 04:49

240629-ff5aha1eke 10

Analysis

max time kernel
597s
max time network
578s
platform
windows11-21h2_x64
resource
win11-20241007-en
resource tags

arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
submitted
26/11/2024, 17:54

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General

Target

bin/Background.mp4
Size

4.6MB
MD5

9782180eb68f73030fe24ef6a1735932
SHA1

589827fe098ba048c9f871a28db8eae3e3537ff4
SHA256

3a1cbb800f8f25c2ab703ba8bfdb01e938e4143c3bc0fea8ca734fb5ba779ba7
SHA512

dc768638bae2d6d47d8910252ae64a656d8a6fd88efdf24165ddce51b7afdb4acb3fddd41dfe788737a2cab4fab66174db2f0d2f48bc8669af76d1656bca8be1
SSDEEP

98304:xs/6Ldccul3Wn48btjNEkPSFTaIwJ0Mt6KNY:xs/Gul3EvEmFItMkb

Score

6^/10

discovery

Malware Config

Signatures

Drops desktop.ini file(s) 7 IoCs

description	ioc	Process
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
File opened for modification	C:\Users\Public\Music\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)	\??\H:	wmplayer.exe
File opened (read-only)	\??\J:	wmplayer.exe
File opened (read-only)	\??\K:	wmplayer.exe
File opened (read-only)	\??\P:	wmplayer.exe
File opened (read-only)	\??\R:	wmplayer.exe
File opened (read-only)	\??\O:	unregmp2.exe
File opened (read-only)	\??\Q:	unregmp2.exe
File opened (read-only)	\??\W:	wmplayer.exe
File opened (read-only)	\??\S:	wmplayer.exe
File opened (read-only)	\??\Y:	wmplayer.exe
File opened (read-only)	\??\V:	unregmp2.exe
File opened (read-only)	\??\N:	wmplayer.exe
File opened (read-only)	\??\X:	unregmp2.exe
File opened (read-only)	\??\Z:	wmplayer.exe
File opened (read-only)	\??\B:	unregmp2.exe
File opened (read-only)	\??\I:	unregmp2.exe
File opened (read-only)	\??\P:	unregmp2.exe
File opened (read-only)	\??\G:	wmplayer.exe
File opened (read-only)	\??\O:	wmplayer.exe
File opened (read-only)	\??\V:	wmplayer.exe
File opened (read-only)	\??\J:	unregmp2.exe
File opened (read-only)	\??\K:	unregmp2.exe
File opened (read-only)	\??\W:	unregmp2.exe
File opened (read-only)	\??\Y:	unregmp2.exe
File opened (read-only)	\??\M:	wmplayer.exe
File opened (read-only)	\??\U:	wmplayer.exe
File opened (read-only)	\??\G:	unregmp2.exe
File opened (read-only)	\??\H:	unregmp2.exe
File opened (read-only)	\??\Q:	wmplayer.exe
File opened (read-only)	\??\M:	unregmp2.exe
File opened (read-only)	\??\R:	unregmp2.exe
File opened (read-only)	\??\Z:	unregmp2.exe
File opened (read-only)	\??\A:	wmplayer.exe
File opened (read-only)	\??\I:	wmplayer.exe
File opened (read-only)	\??\X:	wmplayer.exe
File opened (read-only)	\??\E:	unregmp2.exe
File opened (read-only)	\??\N:	unregmp2.exe
File opened (read-only)	\??\T:	unregmp2.exe
File opened (read-only)	\??\U:	unregmp2.exe
File opened (read-only)	\??\B:	wmplayer.exe
File opened (read-only)	\??\E:	wmplayer.exe
File opened (read-only)	\??\L:	wmplayer.exe
File opened (read-only)	\??\T:	wmplayer.exe
File opened (read-only)	\??\A:	unregmp2.exe
File opened (read-only)	\??\L:	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 3 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppModel\Deployment\Package\*\S-1-5-21-3870231897-2573482396-1083937135-1000\{B3133575-A49C-4A4E-B708-79B19A275207}	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 8 IoCs

description	pid	Process
Token: SeShutdownPrivilege	4936	wmplayer.exe
Token: SeCreatePagefilePrivilege	4936	wmplayer.exe
Token: SeShutdownPrivilege	3184	unregmp2.exe
Token: SeCreatePagefilePrivilege	3184	unregmp2.exe
Token: 33	236	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	236	AUDIODG.EXE
Token: SeShutdownPrivilege	4936	wmplayer.exe
Token: SeCreatePagefilePrivilege	4936	wmplayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4936	wmplayer.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4936 wrote to memory of 5112	4936	wmplayer.exe	78
PID 4936 wrote to memory of 5112	4936	wmplayer.exe	78
PID 4936 wrote to memory of 5112	4936	wmplayer.exe	78
PID 5112 wrote to memory of 3184	5112	unregmp2.exe	79
PID 5112 wrote to memory of 3184	5112	unregmp2.exe	79

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\bin\Background.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:4936
- C:\Windows\SysWOW64\unregmp2.exe
  "C:\Windows\System32\unregmp2.exe" /AsyncFirstLogon
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5112
- - C:\Windows\system32\unregmp2.exe
    "C:\Windows\SysNative\unregmp2.exe" /AsyncFirstLogon /REENTRANT
    3⤵
    - Enumerates connected drives
    - Suspicious use of AdjustPrivilegeToken
    PID:3184

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation -p -s upnphost
1⤵
- Drops file in Windows directory
PID:336

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x00000000000004D4 0x00000000000004CC
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:236

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
64KB

MD5
066f6e5acfff197d12b550ef7d452d41

SHA1
aaa8cfa5a56519594490d069f31a42a15ca515a2

SHA256
cac3a8354c7766b4ce0900bf4d8097bf372ec405a6af4bba63a6d92132932a30

SHA512
21c3985bdc883b7c0fcdfb660a577eb03870943d9e812a24726158b6c06cc36b00425fdeafddcb099fddd1488173280563f7241c9589e69d04d1eb1b5daa786b

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

Filesize
1024KB

MD5
55a4ac76f976ff9ede548b042d9821f1

SHA1
a95d90c40f5256e550da3130bd0fa767d4de6c1d

SHA256
108b99131c3408050ff81c9915bfe4c25241677c090e9f7cdc21386deb2e6cce

SHA512
d44618366fac804f8f1087520a403925ecb848c9b79346f5be18b662bb23432ec659593bdd76422aa499f938e9aef5f3e131236adcea4e3e43a42ae06b8b137b

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

Filesize
68KB

MD5
0056c2a9d451bacf74368660a991ab27

SHA1
3cc25ea02d2b3531d582bfd00a869faf7bd4592c

SHA256
82c9ebbab6aa0c8ae48e9dba5a88b8429c9caea9a9a89eabcb50fd6f508a3543

SHA512
4687b30591869e356737c9985779e0f0ea0d176b9140742f8d9eb1128ac50c8f31a63aa67e00c3fe336d2877fdf3e517a8c82f895224ad00f6ce8337365c449d

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
7050d5ae8acfbe560fa11073fef8185d

SHA1
5bc38e77ff06785fe0aec5a345c4ccd15752560e

SHA256
cb87767c4a384c24e4a0f88455f59101b1ae7b4fb8de8a5adb4136c5f7ee545b

SHA512
a7a295ac8921bb3dde58d4bcde9372ed59def61d4b7699057274960fa8c1d1a1daff834a93f7a0698e9e5c16db43af05e9fd2d6d7c9232f7d26ffcff5fc5900b

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

Filesize
1KB

MD5
13ffdf9b1e4c4e38d44577128e5adb5d

SHA1
ce047792fcc16671c0eefdb36642355e7b0797fc

SHA256
4e8c4561a5920a698eb80a84c3b6298e2ce3cb19249ff4412d5f1605ddfcc64f

SHA512
779f4f56fb7f81041f7d9fb8b1dbf19733bc26fd1e1f646c9b1791d626ef317c5938cf8a171e839f2abe4d2cc499d6a1a3746b877047ae812a9f42cdf12e3784

Download Submit
memory/4936-37-0x0000000006C00000-0x0000000006C10000-memory.dmp

Filesize
64KB

Download
memory/4936-33-0x0000000004A60000-0x0000000004A70000-memory.dmp

Filesize
64KB

Download
memory/4936-36-0x0000000004A60000-0x0000000004A70000-memory.dmp

Filesize
64KB

Download
memory/4936-39-0x0000000006820000-0x0000000006830000-memory.dmp

Filesize
64KB

Download
memory/4936-40-0x0000000004A60000-0x0000000004A70000-memory.dmp

Filesize
64KB

Download
memory/4936-41-0x0000000004A60000-0x0000000004A70000-memory.dmp

Filesize
64KB

Download
memory/4936-38-0x0000000006820000-0x0000000006830000-memory.dmp

Filesize
64KB

Download
memory/4936-42-0x0000000006820000-0x0000000006830000-memory.dmp

Filesize
64KB

Download
memory/4936-34-0x0000000004A60000-0x0000000004A70000-memory.dmp

Filesize
64KB

Download
memory/4936-35-0x0000000004A60000-0x0000000004A70000-memory.dmp

Filesize
64KB

Download
memory/4936-58-0x0000000000AC0000-0x0000000000AD0000-memory.dmp

Filesize
64KB

Download
memory/4936-59-0x0000000000AC0000-0x0000000000AD0000-memory.dmp

Filesize
64KB

Download