f5b3db14850a6a7622acb969eb356953a038d0547a2f96d1d5400f7e765eaecb

Analysis

max time kernel
1553s
max time network
1591s
platform
windows10-2004_x64
resource
win10v2004-20230221-en
resource tags

arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
submitted
03-04-2023 20:05

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General

Target

0-02-0a-ab608ce4619c10c5d404f16bc3f3a3e1a39bcad96df6f2ffe440a46a09b7a566_d59198ec.mp4
Size

9.0MB
MD5

2011df51a30664ddf718843763d9d418
SHA1

d8e74638ef0cac0b417c3e5870d27e1679ed2c75
SHA256

f5b3db14850a6a7622acb969eb356953a038d0547a2f96d1d5400f7e765eaecb
SHA512

125d40319b1d06e9d92cf67696bd6f7c0d60fc626198f01791b1f928b6f8055adfa4c5df2c87539ada4e9157be6abc389e01b8a1446bc90510535f56ebfe2003
SSDEEP

196608:swV7flhfeTswLYNX9b5TguVq075HIl3oG1n+2KWBAAZRmjOeP:9vlzkYTbiP0RWz1n+2KWBAAZRaOe

Score

6^/10

Malware Config

Signatures

Enumerates connected drives 3 TTPs 24 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)	\??\L:	unregmp2.exe
File opened (read-only)	\??\P:	unregmp2.exe
File opened (read-only)	\??\R:	unregmp2.exe
File opened (read-only)	\??\S:	unregmp2.exe
File opened (read-only)	\??\W:	unregmp2.exe
File opened (read-only)	\??\Z:	unregmp2.exe
File opened (read-only)	\??\I:	unregmp2.exe
File opened (read-only)	\??\V:	unregmp2.exe
File opened (read-only)	\??\X:	unregmp2.exe
File opened (read-only)	\??\E:	unregmp2.exe
File opened (read-only)	\??\F:	unregmp2.exe
File opened (read-only)	\??\H:	unregmp2.exe
File opened (read-only)	\??\N:	unregmp2.exe
File opened (read-only)	\??\Q:	unregmp2.exe
File opened (read-only)	\??\T:	unregmp2.exe
File opened (read-only)	\??\U:	unregmp2.exe
File opened (read-only)	\??\Y:	unregmp2.exe
File opened (read-only)	\??\A:	unregmp2.exe
File opened (read-only)	\??\B:	unregmp2.exe
File opened (read-only)	\??\G:	unregmp2.exe
File opened (read-only)	\??\J:	unregmp2.exe
File opened (read-only)	\??\K:	unregmp2.exe
File opened (read-only)	\??\M:	unregmp2.exe
File opened (read-only)	\??\O:	unregmp2.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

unregmp2.exe

description pid process

Token: SeShutdownPrivilege 1356 unregmp2.exe
Token: SeCreatePagefilePrivilege 1356 unregmp2.exe

description	pid	process
Token: SeShutdownPrivilege	1356	unregmp2.exe
Token: SeCreatePagefilePrivilege	1356	unregmp2.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

wmplayer.exeunregmp2.exe

description	pid	process	target process
PID 4936 wrote to memory of 5012	4936	wmplayer.exe	setup_wm.exe
PID 4936 wrote to memory of 5012	4936	wmplayer.exe	setup_wm.exe
PID 4936 wrote to memory of 5012	4936	wmplayer.exe	setup_wm.exe
PID 4936 wrote to memory of 3044	4936	wmplayer.exe	unregmp2.exe
PID 4936 wrote to memory of 3044	4936	wmplayer.exe	unregmp2.exe
PID 4936 wrote to memory of 3044	4936	wmplayer.exe	unregmp2.exe
PID 3044 wrote to memory of 1356	3044	unregmp2.exe	unregmp2.exe
PID 3044 wrote to memory of 1356	3044	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\0-02-0a-ab608ce4619c10c5d404f16bc3f3a3e1a39bcad96df6f2ffe440a46a09b7a566_d59198ec.mp4"
1⤵
- Suspicious use of WriteProcessMemory
PID:4936

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\0-02-0a-ab608ce4619c10c5d404f16bc3f3a3e1a39bcad96df6f2ffe440a46a09b7a566_d59198ec.mp4"
2⤵
PID:5012

C:\Windows\SysWOW64\unregmp2.exe
"C:\Windows\System32\unregmp2.exe" /AsyncFirstLogon
2⤵
- Suspicious use of WriteProcessMemory
PID:3044

C:\Windows\system32\unregmp2.exe
"C:\Windows\SysNative\unregmp2.exe" /AsyncFirstLogon /REENTRANT
3⤵
- Enumerates connected drives
- Suspicious use of AdjustPrivilegeToken
PID:1356

Network

MITRE ATT&CK Matrix ATT&CK v6

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

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Downloads

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

MD5
fc240c081ec382df4b74d591d7d37a45

SHA1
396e9d8accb2ff8b32e6c3957808cb87d23ad47c

SHA256
8cfeb277627a0fc9f2596c83dc37f9a3d8871293cd88dadd08f32098bf936038

SHA512
d8f83773c330b88b43f9ebc6220aa98368854e44a75b73a8575e7171f6c32e784d404e5a2e2e7787d3c71c0cfecdbb983631b639d9fee879b374d498d2ef0ab7

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C:\Users\Admin\AppData\Local\Microsoft\Windows Media\12.0\WMSDKNS.XML.bak
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
4a7b3947fe9bfd1ada4aaf8e2d9f08e0

SHA1
f8611be948443ef08c0ccddfde005a47b1d71b3a

SHA256
8a3729edf99a08b48c06d638db2e0084f2dac083aa9bae921ca38cd9002dddfd

SHA512
23c94c72b7f12a6767903af1c90ec6a45c3364ebf989d367ab8f148fc05c31d10118619a3388d812691dfe01f5f18f400859f12d0be971092b8da600c3344a6e

Download Submit