d16dddc1e9ad69c5ef67afd93eb801c74ca5b95ec8b46741786c8c8ec47b1b1d

Analysis

max time kernel
143s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
23-04-2024 14:29

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General

Target

notfound.wav
Size

20KB
MD5

b6db2d81423853ca8e82bd42e04e9ab2
SHA1

cfe0832bd5b107c94a54dc3c64df930462955dcf
SHA256

05c118e5a69fb0603c4e4d6357d3b92e3aca6e93883955eb9ec08110edc65fd5
SHA512

56ab7ad06fa0e55f44674279e9957cb96b13b090c0a61dd613c062654c37da2bff3dcf4a7d765db313de7fa19bb859794d3c06dfdadca23e45acf7c5c5fa6c19
SSDEEP

384:fWkYjsRliyvEwE5KDNYRcxHw6m6PV7WnG2q5FN2Kli+C:fuj04yvEwEM6Rcxjt4Bm0

Score

6^/10

Malware Config

Signatures

Enumerates connected drives 3 TTPs 23 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)	\??\Y:	unregmp2.exe
File opened (read-only)	\??\B:	unregmp2.exe
File opened (read-only)	\??\H:	unregmp2.exe
File opened (read-only)	\??\P:	unregmp2.exe
File opened (read-only)	\??\Q:	unregmp2.exe
File opened (read-only)	\??\U:	unregmp2.exe
File opened (read-only)	\??\E:	unregmp2.exe
File opened (read-only)	\??\I:	unregmp2.exe
File opened (read-only)	\??\S:	unregmp2.exe
File opened (read-only)	\??\T:	unregmp2.exe
File opened (read-only)	\??\W:	unregmp2.exe
File opened (read-only)	\??\Z:	unregmp2.exe
File opened (read-only)	\??\A:	unregmp2.exe
File opened (read-only)	\??\G:	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)	\??\X:	unregmp2.exe
File opened (read-only)	\??\K:	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)	\??\V:	unregmp2.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

unregmp2.exe

description pid process

Token: SeShutdownPrivilege 4568 unregmp2.exe
Token: SeCreatePagefilePrivilege 4568 unregmp2.exe

description	pid	process
Token: SeShutdownPrivilege	4568	unregmp2.exe
Token: SeCreatePagefilePrivilege	4568	unregmp2.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

wmplayer.exeunregmp2.exe

description	pid	process	target process
PID 1892 wrote to memory of 4176	1892	wmplayer.exe	setup_wm.exe
PID 1892 wrote to memory of 4176	1892	wmplayer.exe	setup_wm.exe
PID 1892 wrote to memory of 4176	1892	wmplayer.exe	setup_wm.exe
PID 1892 wrote to memory of 5072	1892	wmplayer.exe	unregmp2.exe
PID 1892 wrote to memory of 5072	1892	wmplayer.exe	unregmp2.exe
PID 1892 wrote to memory of 5072	1892	wmplayer.exe	unregmp2.exe
PID 5072 wrote to memory of 4568	5072	unregmp2.exe	unregmp2.exe
PID 5072 wrote to memory of 4568	5072	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\notfound.wav"
1⤵
- Suspicious use of WriteProcessMemory
PID:1892

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\notfound.wav"
2⤵
PID:4176

C:\Windows\SysWOW64\unregmp2.exe
"C:\Windows\System32\unregmp2.exe" /AsyncFirstLogon
2⤵
- Suspicious use of WriteProcessMemory
PID:5072

C:\Windows\system32\unregmp2.exe
"C:\Windows\SysNative\unregmp2.exe" /AsyncFirstLogon /REENTRANT
3⤵
- Enumerates connected drives
- Suspicious use of AdjustPrivilegeToken
PID:4568

Network

MITRE ATT&CK Matrix ATT&CK v13

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

Resource Development

Reconnaissance

Replay Monitor

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Downloads

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

MD5
29bd18035ac3468ed8ee41ba90d66f22

SHA1
36e76825c5aff3f599ec16a85b14ee487595a69d

SHA256
eca587e1d30a5a9c65a7f3d69272ebc2890a0ec954d1ee4ad7d5ac45bd95ddc8

SHA512
b1b8a231de045c227d430c9edd5996b882153fd848fc319ba2dfbfc7aa309bce8a3551889f735f6de6d6fdfc09a1ffad4dcb4fd7ff2d4017eeb2c97f7a83f7d0

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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

Download Submit
C:\Users\Admin\AppData\Local\Temp\wmsetup.log
Filesize
1KB

MD5
8103708244d6b68d98279a72a1400e5b

SHA1
26602282ad211aa639d81c4994cc7fd39ca174b8

SHA256
81726580b8078cad1ff0c51250466480a7547d3ed23afb5e0c63934324786373

SHA512
2d3555d8728acaa513398b6ce861434f1c077d606fa33089990d3706fefe6c983f2d2ccbb74059345a082d79f731c960cdbfeecb1d8e459ab093a2f701e0f149

Download Submit