3974aa507fed5303b0632c268cdb9ea82de4ca7ab4ab7184e361d58ebb912b4b

Analysis

max time kernel
149s
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/1.wav
Size

2.5MB
MD5

1761a55c720c5ddeb03b1fc7efb37e43
SHA1

53a43ec146302ebe8ee973519a06876a7723caa1
SHA256

0b7aafade0f27cb0490ecf3213c13c51cdc440a8d925e6db82a99c65235576a7
SHA512

0d8dc2e091c84cd3f151dd17382d83b73dd941d70944486e4c657aa40d002444747a06ff579f0be62ca1a1b0e9c970456da450233fa434b6f65bff73960b0ea4
SSDEEP

49152:7Fb3RQyX1jQ8vQFNoQjkx+MPsAt+PjsgAT+r9QJhkoEq8TkgiJwSrKfHIm1brmtQ:J3RQc1jQRFrgx+Ks6ojhM+r9Q7Eq8TkF

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

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

unregmp2.exe

description pid process

Token: SeShutdownPrivilege 4728 unregmp2.exe
Token: SeCreatePagefilePrivilege 4728 unregmp2.exe

description	pid	process
Token: SeShutdownPrivilege	4728	unregmp2.exe
Token: SeCreatePagefilePrivilege	4728	unregmp2.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

wmplayer.exeunregmp2.exe

description	pid	process	target process
PID 1632 wrote to memory of 3488	1632	wmplayer.exe	setup_wm.exe
PID 1632 wrote to memory of 3488	1632	wmplayer.exe	setup_wm.exe
PID 1632 wrote to memory of 3488	1632	wmplayer.exe	setup_wm.exe
PID 1632 wrote to memory of 1168	1632	wmplayer.exe	unregmp2.exe
PID 1632 wrote to memory of 1168	1632	wmplayer.exe	unregmp2.exe
PID 1632 wrote to memory of 1168	1632	wmplayer.exe	unregmp2.exe
PID 1168 wrote to memory of 4728	1168	unregmp2.exe	unregmp2.exe
PID 1168 wrote to memory of 4728	1168	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\1.wav"
1⤵
- Suspicious use of WriteProcessMemory
PID:1632

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\1.wav"
2⤵
PID:3488

C:\Windows\SysWOW64\unregmp2.exe
"C:\Windows\System32\unregmp2.exe" /AsyncFirstLogon
2⤵
- Suspicious use of WriteProcessMemory
PID:1168

C:\Windows\system32\unregmp2.exe
"C:\Windows\SysNative\unregmp2.exe" /AsyncFirstLogon /REENTRANT
3⤵
- Enumerates connected drives
- Suspicious use of AdjustPrivilegeToken
PID:4728

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
fbd671a71a660e752494eb4fbb63e158

SHA1
c01dd2923d77a53e47a98e6b773fda39136fce08

SHA256
916ed561c1f712bbf89d06f8abba752760810e7cdb35c1acfb877b99de2aaefd

SHA512
290d792628855dcfd06d7250c15e8548105f8619774707c066f4d8f5572d6ea7cf521c1f374165968fdec70ae86df4a4ee7d3945002adfdd59c8a212fbd527eb

Download Submit