d16dddc1e9ad69c5ef67afd93eb801c74ca5b95ec8b46741786c8c8ec47b1b1d

Analysis

max time kernel
132s
max time network
105s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
24-05-2024 20:20

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

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

unregmp2.exe

description pid process

Token: SeShutdownPrivilege 4900 unregmp2.exe
Token: SeCreatePagefilePrivilege 4900 unregmp2.exe

description	pid	process
Token: SeShutdownPrivilege	4900	unregmp2.exe
Token: SeCreatePagefilePrivilege	4900	unregmp2.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

wmplayer.exeunregmp2.exe

description	pid	process	target process
PID 3080 wrote to memory of 2380	3080	wmplayer.exe	setup_wm.exe
PID 3080 wrote to memory of 2380	3080	wmplayer.exe	setup_wm.exe
PID 3080 wrote to memory of 2380	3080	wmplayer.exe	setup_wm.exe
PID 3080 wrote to memory of 4632	3080	wmplayer.exe	unregmp2.exe
PID 3080 wrote to memory of 4632	3080	wmplayer.exe	unregmp2.exe
PID 3080 wrote to memory of 4632	3080	wmplayer.exe	unregmp2.exe
PID 4632 wrote to memory of 4900	4632	unregmp2.exe	unregmp2.exe
PID 4632 wrote to memory of 4900	4632	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:3080

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:2380

C:\Windows\SysWOW64\unregmp2.exe
"C:\Windows\System32\unregmp2.exe" /AsyncFirstLogon
2⤵
- Suspicious use of WriteProcessMemory
PID:4632

C:\Windows\system32\unregmp2.exe
"C:\Windows\SysNative\unregmp2.exe" /AsyncFirstLogon /REENTRANT
3⤵
- Enumerates connected drives
- Suspicious use of AdjustPrivilegeToken
PID:4900

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
563088ad0f20fabf9dd62c6ba8ae1636

SHA1
f9cd2fd153afa1a12ff990cf27c32b8c9c44e878

SHA256
eb897bf202d32f067728f1b666eb16e9926557efa8676b72db11411013030184

SHA512
8229dfb1d96b6a34b91b1e5c463833e7859331be880f585c48af1ba0ace0465ac755c7f22a9e6f30284266165f850e8f85af76157eea8136b2d6f79db02d3092

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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
aedbc31504c01d8200b619ca711b6e9d

SHA1
5528aefa3493c74855b1a4160c8b7bcb08257d7b

SHA256
63f039f13c589b40281aa826ba12c930a36de6d6377cbcb35d2147ebdd697539

SHA512
3e680b5da6bee4ec99b31abb1d712e1b8fb102b045538223575b75b246cd538469d2e7a35d1928f5036d7e0a8deca3d55f5ba62f95340576590616f5351337bf

Download Submit