c148c4ae4e093b3653496766f69a01b2fff54fce595836e71373efc8e4ee6794

Analysis

max time kernel
91s
max time network
126s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
09-06-2023 18:41

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General

Target

sound_out4.wav
Size

75KB
MD5

85bd48344ac1189bebc71e449e808ac0
SHA1

24f85f90a2e75a4d38f3a1448e2f06ccc6443c83
SHA256

9f3060f34e5d7b7c201160d068c57d9ee89e2f568b0ebc9783301552039b77ea
SHA512

76f25185f57d89e9b196e428670b06356de5c6faa1c25b546ab1191085276fc426f412f0420bc8e0e443a1d0e7c8a1749b5c4d6dcd43a5748a291c5ea01a65db
SSDEEP

1536:XWjWQDzJTRTagGb3DpCMk7JHnvX/6rn4zmy6FhdC+C6QjOakLhoVsO:mKgGbEMo1vST4r0C+C6QjOa6hWsO

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

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

unregmp2.exe

description pid process

Token: SeShutdownPrivilege 1592 unregmp2.exe
Token: SeCreatePagefilePrivilege 1592 unregmp2.exe

description	pid	process
Token: SeShutdownPrivilege	1592	unregmp2.exe
Token: SeCreatePagefilePrivilege	1592	unregmp2.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

wmplayer.exeunregmp2.exe

description	pid	process	target process
PID 5100 wrote to memory of 2540	5100	wmplayer.exe	setup_wm.exe
PID 5100 wrote to memory of 2540	5100	wmplayer.exe	setup_wm.exe
PID 5100 wrote to memory of 2540	5100	wmplayer.exe	setup_wm.exe
PID 5100 wrote to memory of 4676	5100	wmplayer.exe	unregmp2.exe
PID 5100 wrote to memory of 4676	5100	wmplayer.exe	unregmp2.exe
PID 5100 wrote to memory of 4676	5100	wmplayer.exe	unregmp2.exe
PID 4676 wrote to memory of 1592	4676	unregmp2.exe	unregmp2.exe
PID 4676 wrote to memory of 1592	4676	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\sound_out4.wav"
1⤵
- Suspicious use of WriteProcessMemory
PID:5100

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\sound_out4.wav"
2⤵
PID:2540

C:\Windows\SysWOW64\unregmp2.exe
"C:\Windows\System32\unregmp2.exe" /AsyncFirstLogon
2⤵
- Suspicious use of WriteProcessMemory
PID:4676

C:\Windows\system32\unregmp2.exe
"C:\Windows\SysNative\unregmp2.exe" /AsyncFirstLogon /REENTRANT
3⤵
- Enumerates connected drives
- Suspicious use of AdjustPrivilegeToken
PID:1592

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

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

MD5
d99994d7cdeb9d0db64b7779454b36ea

SHA1
0a2caf81fd3a31e54d52cae0521463b06af175ea

SHA256
08807ca0b11f4ba8e82c34d16ffa9d98144059d62111f422ad93b6c93f224724

SHA512
94b9edf33c1a572273cf22e870fae8948184b47ce5574b2c781cc02aaca37dc4fa9930eb25afc760a56a0bac56961af39752586abef6f6ae82b76376a8a0f547

Download Submit