3974aa507fed5303b0632c268cdb9ea82de4ca7ab4ab7184e361d58ebb912b4b

Analysis

max time kernel
150s
max time network
173s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
10-06-2023 13:46

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General

Target

Changed Special/steamapps/common/Changed Special/Audio/BGM/14.wav
Size

5.4MB
MD5

ffd6bebfebca8df2ba3b6945596ddb38
SHA1

327e525561706c6327653dc0566d14a340b6e2bc
SHA256

411ec37f9e2d73449f8ae9c28c416dabac18d53ba979162300cdac6a00abefbc
SHA512

03576c80692f9fa9677c6aa2412368cd0d4b4811c55a76c00606676a2b6789205212f30face96fab1c9f725320537b6e33a42d395ce587691871203b75ca116c
SSDEEP

98304:G05AnEL/oIKUj4zv48MYg+C9v7md01JtKpC18gU3a955AmKxttyTB9fRCYUzLMM3:GCjmYd1u4bYttyKO3A

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

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

unregmp2.exe

description pid process

Token: SeShutdownPrivilege 3948 unregmp2.exe
Token: SeCreatePagefilePrivilege 3948 unregmp2.exe

description	pid	process
Token: SeShutdownPrivilege	3948	unregmp2.exe
Token: SeCreatePagefilePrivilege	3948	unregmp2.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

wmplayer.exeunregmp2.exe

description	pid	process	target process
PID 2636 wrote to memory of 4920	2636	wmplayer.exe	setup_wm.exe
PID 2636 wrote to memory of 4920	2636	wmplayer.exe	setup_wm.exe
PID 2636 wrote to memory of 4920	2636	wmplayer.exe	setup_wm.exe
PID 2636 wrote to memory of 3924	2636	wmplayer.exe	unregmp2.exe
PID 2636 wrote to memory of 3924	2636	wmplayer.exe	unregmp2.exe
PID 2636 wrote to memory of 3924	2636	wmplayer.exe	unregmp2.exe
PID 3924 wrote to memory of 3948	3924	unregmp2.exe	unregmp2.exe
PID 3924 wrote to memory of 3948	3924	unregmp2.exe	unregmp2.exe

C:\Program Files (x86)\Windows Media Player\wmplayer.exe
"C:\Program Files (x86)\Windows Media Player\wmplayer.exe" /Open "C:\Users\Admin\AppData\Local\Temp\Changed Special\steamapps\common\Changed Special\Audio\BGM\14.wav"
1⤵
- Suspicious use of WriteProcessMemory
PID:2636

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" /Open "C:\Users\Admin\AppData\Local\Temp\Changed Special\steamapps\common\Changed Special\Audio\BGM\14.wav"
2⤵
PID:4920

C:\Windows\SysWOW64\unregmp2.exe
"C:\Windows\System32\unregmp2.exe" /AsyncFirstLogon
2⤵
- Suspicious use of WriteProcessMemory
PID:3924

C:\Windows\system32\unregmp2.exe
"C:\Windows\SysNative\unregmp2.exe" /AsyncFirstLogon /REENTRANT
3⤵
- Enumerates connected drives
- Suspicious use of AdjustPrivilegeToken
PID:3948

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

Replay Monitor

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Downloads

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

MD5
dbfc662304aa4236ac6c685fdd3ee597

SHA1
bee96b9256c93a35398a8c6a341da9470c6101c2

SHA256
dfd76fd8ae4d04c006729be160e7c23fe8e003e7094a54abf3a5aaee1a5c5590

SHA512
6730c50e8217e93d819b24a76af50ed9afeb34c73f32bcf65cca1bac139219c4897f7a43faa7a88909b32777420f47beb2a1ab23fad5886ef4da35226305c42b

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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
15b1420469efe56f73846b8bc6001f27

SHA1
39ab40185a94cd4706b6ba057b69f5455f7777e4

SHA256
320fc68ef6c8c34fbda97cd6aa669c652e1e1530960507df79c66baadc5db17d

SHA512
cd0e84a6fa139c746580f744df2b12ceca61a479ec3191d91694b00839cfbf5b79ab56ffc23a5612de26cb293d1ea95391683e3e37ab849452dad76b4682fea6

Download Submit