3974aa507fed5303b0632c268cdb9ea82de4ca7ab4ab7184e361d58ebb912b4b

Analysis

max time kernel
112s
max time network
155s
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/10.wav
Size

2.7MB
MD5

f1f7bcb38ffb876aa3d5f9f497998e73
SHA1

ef093de97e5a526ae1b5b82a034ba27152b6c5bb
SHA256

27c2db8e88100c68742d42c8402b74990256121add7f88d047623d687c67df56
SHA512

7bf851c4fa5b8ea207a7b49750ad7cf57cfadcde1ba497b671619e570dae6e39fe7d3c5026cd4aeea91f84d4c6c531063138f19a9bb8e1b747d62a64b9cce426
SSDEEP

49152:WhbWE+BY5K3M+ZOhYsu3diiYt1Wepl10uuUzff1u8zlTB5Jon:WhWE+BsSfsug1rpruaw8pvm

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

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

unregmp2.exe

description pid process

Token: SeShutdownPrivilege 1292 unregmp2.exe
Token: SeCreatePagefilePrivilege 1292 unregmp2.exe

description	pid	process
Token: SeShutdownPrivilege	1292	unregmp2.exe
Token: SeCreatePagefilePrivilege	1292	unregmp2.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

wmplayer.exeunregmp2.exe

description	pid	process	target process
PID 580 wrote to memory of 968	580	wmplayer.exe	setup_wm.exe
PID 580 wrote to memory of 968	580	wmplayer.exe	setup_wm.exe
PID 580 wrote to memory of 968	580	wmplayer.exe	setup_wm.exe
PID 580 wrote to memory of 1296	580	wmplayer.exe	unregmp2.exe
PID 580 wrote to memory of 1296	580	wmplayer.exe	unregmp2.exe
PID 580 wrote to memory of 1296	580	wmplayer.exe	unregmp2.exe
PID 1296 wrote to memory of 1292	1296	unregmp2.exe	unregmp2.exe
PID 1296 wrote to memory of 1292	1296	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\10.wav"
1⤵
- Suspicious use of WriteProcessMemory
PID:580

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\10.wav"
2⤵
PID:968

C:\Windows\SysWOW64\unregmp2.exe
"C:\Windows\System32\unregmp2.exe" /AsyncFirstLogon
2⤵
- Suspicious use of WriteProcessMemory
PID:1296

C:\Windows\system32\unregmp2.exe
"C:\Windows\SysNative\unregmp2.exe" /AsyncFirstLogon /REENTRANT
3⤵
- Enumerates connected drives
- Suspicious use of AdjustPrivilegeToken
PID:1292

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
256KB

MD5
9c481a94abc7eee23cd5234262e60077

SHA1
2873225e708fb5461ac60c3613fe12112423f0f0

SHA256
681c9665d741ca6ed709cdd79d070ff7f4fdf158e02342f7d47e90a6d962b061

SHA512
0579499b5f01649f7e5e3afad07b4c7924d30fbc56dd12b37d9ad46bdefe35fcb6371694c1eff6c42d56c21b1de4c4f40531b27cd32eca1bdf51c6cac41fe668

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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
45178648a553480aaa5cf3f8f4201344

SHA1
07e4a18d8779098df37652a9b34929e939246e5a

SHA256
cafa8a4d96b6aadda6031618c46146d546ea8cc3bec624f4e5e7659771618f95

SHA512
960dfd25d26c4d281d8844a028b9f7a7e874a1f0cc4870a4f5590d1437bb8ffc7c2f8a24c0e1cb58e0bb63816ee5f84aff2c0f4a940f552fd0abffcec005e91d

Download Submit