6d5ff2230c713e9372d23989c3ea247d814ffc6f19380be86f7bccf3c0b6ff91

Analysis

max time kernel
120s
max time network
50s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
01-07-2024 04:29

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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

Malware Config

Signatures

Enumerates connected drives 3 TTPs 23 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.exe

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

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

unregmp2.exe

description pid process

Token: SeShutdownPrivilege 968 unregmp2.exe
Token: SeCreatePagefilePrivilege 968 unregmp2.exe

description	pid	process
Token: SeShutdownPrivilege	968	unregmp2.exe
Token: SeCreatePagefilePrivilege	968	unregmp2.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

wmplayer.exeunregmp2.exe

description	pid	process	target process
PID 2056 wrote to memory of 3596	2056	wmplayer.exe	setup_wm.exe
PID 2056 wrote to memory of 3596	2056	wmplayer.exe	setup_wm.exe
PID 2056 wrote to memory of 3596	2056	wmplayer.exe	setup_wm.exe
PID 2056 wrote to memory of 3168	2056	wmplayer.exe	unregmp2.exe
PID 2056 wrote to memory of 3168	2056	wmplayer.exe	unregmp2.exe
PID 2056 wrote to memory of 3168	2056	wmplayer.exe	unregmp2.exe
PID 3168 wrote to memory of 968	3168	unregmp2.exe	unregmp2.exe
PID 3168 wrote to memory of 968	3168	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\bin\Background.mp4"
1⤵
- Suspicious use of WriteProcessMemory
PID:2056

C:\Program Files (x86)\Windows Media Player\setup_wm.exe
"C:\Program Files (x86)\Windows Media Player\setup_wm.exe" /RunOnce:"C:\Program Files (x86)\Windows Media Player\wmplayer.exe" /prefetch:6 /Open "C:\Users\Admin\AppData\Local\Temp\bin\Background.mp4"
2⤵
PID:3596

C:\Windows\SysWOW64\unregmp2.exe
"C:\Windows\System32\unregmp2.exe" /AsyncFirstLogon
2⤵
- Suspicious use of WriteProcessMemory
PID:3168

C:\Windows\system32\unregmp2.exe
"C:\Windows\SysNative\unregmp2.exe" /AsyncFirstLogon /REENTRANT
3⤵
- Enumerates connected drives
- Suspicious use of AdjustPrivilegeToken
PID:968

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Media Player\CurrentDatabase_400.wmdb
Filesize
64KB

MD5
987a07b978cfe12e4ce45e513ef86619

SHA1
22eec9a9b2e83ad33bedc59e3205f86590b7d40c

SHA256
f1a4a978ce1c4731df1594043135cf58d084fdf129dd1c8e4507c9e06eac5ea8

SHA512
39b86540e4d35c84609ef66537b5aa02058e3d4293f902127c7d4eac8ffc65920cb5c69a77552fc085687eed66e38367f83c177046d0ecb8e6d135463cc142aa

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C:\Users\Admin\AppData\Local\Microsoft\Windows Media\12.0\WMSDKNS.XML
Filesize
9KB

MD5
7050d5ae8acfbe560fa11073fef8185d

SHA1
5bc38e77ff06785fe0aec5a345c4ccd15752560e

SHA256
cb87767c4a384c24e4a0f88455f59101b1ae7b4fb8de8a5adb4136c5f7ee545b

SHA512
a7a295ac8921bb3dde58d4bcde9372ed59def61d4b7699057274960fa8c1d1a1daff834a93f7a0698e9e5c16db43af05e9fd2d6d7c9232f7d26ffcff5fc5900b

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C:\Users\Admin\AppData\Local\Temp\wmsetup.log
Filesize
1KB

MD5
ef88d07a3618a1029773468ca659694d

SHA1
b9db73d3fee41efca5b3c974899a34e33db9e75e

SHA256
96359297e081098da37eeaa086a909b37c2c857c69c26d33e917d173cd28903f

SHA512
afcd691561ba7f60bf358b69917de5a91066ca777a2fe710b0cb499c74414c9f43eafc20998bcd78fa9429025ebd4321a001d7854f2be3e12f0268ba16e32f9a

Download Submit