c148c4ae4e093b3653496766f69a01b2fff54fce595836e71373efc8e4ee6794

Analysis

max time kernel
77s
max time network
129s
platform
windows10-2004_x64
resource
win10v2004-20230221-en
resource tags

arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
submitted
09-06-2023 18:41

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General

Target

sound2.wav
Size

59KB
MD5

1d3e701c3b7ccac6eb9915ab0488f569
SHA1

ffb9ac94e334d21cfc1c156059f7f993ad7c357f
SHA256

c6107f9102e8e02b31caf15dd1b75682e651202cf9ce6b52d5b7b23ac243fad2
SHA512

91b2be1dab135f8d0927f59b494435f2627ac26c2285ec83dae6fe4029c50dc2f30df59809210743088b58d6f309efca31c793e3f40f1e60f08f51c0d69907f1
SSDEEP

1536:xUkAcuYUgWYD+dNv3lg3xxx+0s9CswsMQOMk19:xjAdYoa+dNQWv9MsCMk19

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

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

unregmp2.exe

description pid process

Token: SeShutdownPrivilege 4876 unregmp2.exe
Token: SeCreatePagefilePrivilege 4876 unregmp2.exe

description	pid	process
Token: SeShutdownPrivilege	4876	unregmp2.exe
Token: SeCreatePagefilePrivilege	4876	unregmp2.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

wmplayer.exeunregmp2.exe

description	pid	process	target process
PID 3888 wrote to memory of 3516	3888	wmplayer.exe	setup_wm.exe
PID 3888 wrote to memory of 3516	3888	wmplayer.exe	setup_wm.exe
PID 3888 wrote to memory of 3516	3888	wmplayer.exe	setup_wm.exe
PID 3888 wrote to memory of 4216	3888	wmplayer.exe	unregmp2.exe
PID 3888 wrote to memory of 4216	3888	wmplayer.exe	unregmp2.exe
PID 3888 wrote to memory of 4216	3888	wmplayer.exe	unregmp2.exe
PID 4216 wrote to memory of 4876	4216	unregmp2.exe	unregmp2.exe
PID 4216 wrote to memory of 4876	4216	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\sound2.wav"
1⤵
- Suspicious use of WriteProcessMemory
PID:3888

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\sound2.wav"
2⤵
PID:3516

C:\Windows\SysWOW64\unregmp2.exe
"C:\Windows\System32\unregmp2.exe" /AsyncFirstLogon
2⤵
- Suspicious use of WriteProcessMemory
PID:4216

C:\Windows\system32\unregmp2.exe
"C:\Windows\SysNative\unregmp2.exe" /AsyncFirstLogon /REENTRANT
3⤵
- Enumerates connected drives
- Suspicious use of AdjustPrivilegeToken
PID:4876

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

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Media Player\CurrentDatabase_400.wmdb
Filesize
256KB

MD5
2936527c6171be1065c6012a3e8ffddd

SHA1
9273557d3cfc6987eac30802569e9d2579d7d4a4

SHA256
e341ab7fd265205d2477cb5234a6c3d35911d7ebb17139b585b55eb7def237e0

SHA512
a83203b4696232299c70ff0f7ae292964417b0636d278544fd252a41e6ab3b5c749e836d83d7b22bc52d56dc069bb8caa0ebf5634b32e3acae7afc87c1215e5d

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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
654eab7a54ea1d2fae7c5eff796732da

SHA1
032514d26dd137c4b07bc11b887c21f2e06c0f02

SHA256
413388c873e37c3f5bb5ae5c477b261480413ed58f253505ebba96420b20d90c

SHA512
74b999b12b050c008b4c1665f7f8af2881175f94c4e2405ab15455b2c524ba1523dce09e1019ce608abd904935f02ba728b9e005902636fb7d1006bd6b8cad7d

Download Submit