b7e59768071d2e1fa278737c39770d2c712cc4c7c9a631c42ae06b7acd4f679a

Analysis

max time kernel
126s
max time network
311s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
08/10/2023, 00:49

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General

Target

BaseAfterBase.mp3
Size

1.3MB
MD5

ea337dec695b6ffa77b8bc93ad3e2f6f
SHA1

e609cc6976c0e715610e314f1662694a667337b7
SHA256

32cb477c3cddf168fd556d2d27fbfb6d324bc49f1333442470c3039cd75ccd59
SHA512

bbda38061ec5f3bfc7678eb2936c80cd8445ee9288bf2abca6bf80d6b2bd963af9f113f205c1ff4070a32a60b56a5564e5cda20af9adefa4a3cecac706660a2a
SSDEEP

24576:J57SOSbCuAvsHTsisNOL0NVYDR50PPZg8ujl4QKow7/BT0qHwnmFiNcW:J1KrAvs/swwjFHCjl0ow7/BA7n/P

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

description	ioc	Process
File opened (read-only)	\??\J:	unregmp2.exe
File opened (read-only)	\??\L:	unregmp2.exe
File opened (read-only)	\??\P:	unregmp2.exe
File opened (read-only)	\??\Z:	unregmp2.exe
File opened (read-only)	\??\A:	unregmp2.exe
File opened (read-only)	\??\Q:	unregmp2.exe
File opened (read-only)	\??\S:	unregmp2.exe
File opened (read-only)	\??\T:	unregmp2.exe
File opened (read-only)	\??\U:	unregmp2.exe
File opened (read-only)	\??\V:	unregmp2.exe
File opened (read-only)	\??\I:	unregmp2.exe
File opened (read-only)	\??\W:	unregmp2.exe
File opened (read-only)	\??\X:	unregmp2.exe
File opened (read-only)	\??\O:	unregmp2.exe
File opened (read-only)	\??\E:	unregmp2.exe
File opened (read-only)	\??\G:	unregmp2.exe
File opened (read-only)	\??\H:	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)	\??\B:	unregmp2.exe
File opened (read-only)	\??\Y:	unregmp2.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	1480	unregmp2.exe
Token: SeCreatePagefilePrivilege	1480	unregmp2.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3144 wrote to memory of 1292	3144	wmplayer.exe	84
PID 3144 wrote to memory of 1292	3144	wmplayer.exe	84
PID 3144 wrote to memory of 1292	3144	wmplayer.exe	84
PID 3144 wrote to memory of 912	3144	wmplayer.exe	85
PID 3144 wrote to memory of 912	3144	wmplayer.exe	85
PID 3144 wrote to memory of 912	3144	wmplayer.exe	85
PID 912 wrote to memory of 1480	912	unregmp2.exe	86
PID 912 wrote to memory of 1480	912	unregmp2.exe	86

C:\Program Files (x86)\Windows Media Player\wmplayer.exe
"C:\Program Files (x86)\Windows Media Player\wmplayer.exe" /prefetch:6 /Open "C:\Users\Admin\AppData\Local\Temp\BaseAfterBase.mp3"
1⤵
- Suspicious use of WriteProcessMemory
PID:3144
- 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" /prefetch:6 /Open "C:\Users\Admin\AppData\Local\Temp\BaseAfterBase.mp3"
  2⤵
  PID:1292
- C:\Windows\SysWOW64\unregmp2.exe
  "C:\Windows\System32\unregmp2.exe" /AsyncFirstLogon
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:912
- - C:\Windows\system32\unregmp2.exe
    "C:\Windows\SysNative\unregmp2.exe" /AsyncFirstLogon /REENTRANT
    3⤵
    - Enumerates connected drives
    - Suspicious use of AdjustPrivilegeToken
    PID:1480

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
64KB

MD5
fc240c081ec382df4b74d591d7d37a45

SHA1
396e9d8accb2ff8b32e6c3957808cb87d23ad47c

SHA256
8cfeb277627a0fc9f2596c83dc37f9a3d8871293cd88dadd08f32098bf936038

SHA512
d8f83773c330b88b43f9ebc6220aa98368854e44a75b73a8575e7171f6c32e784d404e5a2e2e7787d3c71c0cfecdbb983631b639d9fee879b374d498d2ef0ab7

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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
24f323022c5806ce4609f14f0f430918

SHA1
f4375488dbef0de2249ab7b92c22debc6d425e27

SHA256
5f9cf3eadcea06ef76c74a927aebb5fbd3d8b4a8681328fee78b248c504ccb8f

SHA512
cbd2fdb33636d7709c9d102c5a5d9fb7681b51e997c038ba34acaa7f22b9a1929cf4a51b9649ff8c6d676a178c679a868c54f2e7bb8d507d9d3bba0fd137eb0a

Download Submit