3974aa507fed5303b0632c268cdb9ea82de4ca7ab4ab7184e361d58ebb912b4b

Analysis

max time kernel
99s
max time network
166s
platform
windows10-2004_x64
resource
win10v2004-20230221-en
resource tags

arch:x64arch:x86image:win10v2004-20230221-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/15.wav
Size

1.4MB
MD5

ac10ce269ea98653c1c1a9e136d52d22
SHA1

52776799f3ccd9414113d8051e6e0edd2be3a12d
SHA256

d8129ba0819290d122b2b028723c3a742701709ee431545a74c3825a659b9677
SHA512

37112a2d3d988cb3f01d3d2b87e1f200c2bf06065a6b9cfbde9ecf7d74acfb155da5906f70bfa0ee37f520c19f2c8b14d0e6d51620d05644e3ad1b87742b3dbb
SSDEEP

24576:gc/WiIpksTLj7EkQGBcpehegggo0biyUiSkcV+mJSE2Az0eEZKINbG8ya8b:gz1TnwrGGpehege0biyHSkuJl2q0exU6

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

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

unregmp2.exe

description pid process

Token: SeShutdownPrivilege 1752 unregmp2.exe
Token: SeCreatePagefilePrivilege 1752 unregmp2.exe

description	pid	process
Token: SeShutdownPrivilege	1752	unregmp2.exe
Token: SeCreatePagefilePrivilege	1752	unregmp2.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

wmplayer.exeunregmp2.exe

description	pid	process	target process
PID 1192 wrote to memory of 3444	1192	wmplayer.exe	setup_wm.exe
PID 1192 wrote to memory of 3444	1192	wmplayer.exe	setup_wm.exe
PID 1192 wrote to memory of 3444	1192	wmplayer.exe	setup_wm.exe
PID 1192 wrote to memory of 4292	1192	wmplayer.exe	unregmp2.exe
PID 1192 wrote to memory of 4292	1192	wmplayer.exe	unregmp2.exe
PID 1192 wrote to memory of 4292	1192	wmplayer.exe	unregmp2.exe
PID 4292 wrote to memory of 1752	4292	unregmp2.exe	unregmp2.exe
PID 4292 wrote to memory of 1752	4292	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\15.wav"
1⤵
- Suspicious use of WriteProcessMemory
PID:1192

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\15.wav"
2⤵
PID:3444

C:\Windows\SysWOW64\unregmp2.exe
"C:\Windows\System32\unregmp2.exe" /AsyncFirstLogon
2⤵
- Suspicious use of WriteProcessMemory
PID:4292

C:\Windows\system32\unregmp2.exe
"C:\Windows\SysNative\unregmp2.exe" /AsyncFirstLogon /REENTRANT
3⤵
- Enumerates connected drives
- Suspicious use of AdjustPrivilegeToken
PID:1752

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
f9595dbab00c3922db88b29633f007f9

SHA1
beb223a60767a1cca230c640e2d04c8e1e231d7c

SHA256
02eaa7c65c3c1aaa66b1027232b577976ccf901eede90012dbd49b52d70b57d2

SHA512
15e4a89c2f25e1b561a9582d170511b22ec8c0fef491fcb354d6bfb92c6412969afd85aaf8cb2c0e66c5d3e0b52d87accda5157161a1637c3c44fa24757c82e6

Download Submit