3974aa507fed5303b0632c268cdb9ea82de4ca7ab4ab7184e361d58ebb912b4b

Analysis

max time kernel
99s
max time network
152s
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/12.wav
Size

3.8MB
MD5

88dcefb7b311283841e8ff9ce8cdc8c9
SHA1

658f9fd85b6de409f88af8a6837d2d2fee39097e
SHA256

001cf450c4e35f0a4302f6b59af947993aa0894e90bdfe8939314f8361049ac3
SHA512

cb3a5ff39b9afe1d75adae04f25ab543521d9e6b9f0abae9f4962d32bc07ff73228c12612cfef6259b6065298a8216f7cd962d9bcceff2687170ec23b1a22da4
SSDEEP

98304:kpNO+8ayR1rJaDqvLqPkCjQQTryTqUko2rFacx7kfLz7tqMHmcgc:BR1d2ty1J2rFez7tPGcgc

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

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

unregmp2.exe

description pid process

Token: SeShutdownPrivilege 4032 unregmp2.exe
Token: SeCreatePagefilePrivilege 4032 unregmp2.exe

description	pid	process
Token: SeShutdownPrivilege	4032	unregmp2.exe
Token: SeCreatePagefilePrivilege	4032	unregmp2.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

wmplayer.exeunregmp2.exe

description	pid	process	target process
PID 2156 wrote to memory of 1628	2156	wmplayer.exe	setup_wm.exe
PID 2156 wrote to memory of 1628	2156	wmplayer.exe	setup_wm.exe
PID 2156 wrote to memory of 1628	2156	wmplayer.exe	setup_wm.exe
PID 2156 wrote to memory of 116	2156	wmplayer.exe	unregmp2.exe
PID 2156 wrote to memory of 116	2156	wmplayer.exe	unregmp2.exe
PID 2156 wrote to memory of 116	2156	wmplayer.exe	unregmp2.exe
PID 116 wrote to memory of 4032	116	unregmp2.exe	unregmp2.exe
PID 116 wrote to memory of 4032	116	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\12.wav"
1⤵
- Suspicious use of WriteProcessMemory
PID:2156

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\12.wav"
2⤵
PID:1628

C:\Windows\SysWOW64\unregmp2.exe
"C:\Windows\System32\unregmp2.exe" /AsyncFirstLogon
2⤵
- Suspicious use of WriteProcessMemory
PID:116

C:\Windows\system32\unregmp2.exe
"C:\Windows\SysNative\unregmp2.exe" /AsyncFirstLogon /REENTRANT
3⤵
- Enumerates connected drives
- Suspicious use of AdjustPrivilegeToken
PID:4032

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

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.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
9bc70952ab2c33478a0db5bea4110d99

SHA1
ea8d31146c2c62542812a765f9e367e1e53de9d3

SHA256
d99f45b5db3db7262d1510ead447e464f06100da1123b8b0a20ddd8715bf0949

SHA512
fe7c1cb0613d00e9a2669464700430f44242d025ad11f573b5c40c7da5e0cba2e6c5cfe152517fbb3a1c46c81f724cbe4033419feedc20a91b02abae7da7af95

Download Submit