dafe2ef1f5b38be10a074295677801c5ba717f68d00f4ff93f5c69468684533e

Analysis

max time kernel
1485s
max time network
1492s
platform
windows11-21h2_x64
resource
win11-20240221-en
resource tags

arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system
submitted
11-03-2024 15:18

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General

Target

%3F.mp3
Size

4.8MB
MD5

d887bb38b2923931a3564ecef2b3c717
SHA1

97afed6209cf3a7d3144a23cb52f6c8cf28c656a
SHA256

dafe2ef1f5b38be10a074295677801c5ba717f68d00f4ff93f5c69468684533e
SHA512

947fd7212adffd6f60b964cbe270a817ff01067b76085a75ee55b709d7b3416f8fb1613346008dddb86a5c882c246b4509b12992786c72d9569008b0e85c60ed
SSDEEP

98304:ZRhfe6r7X34O/Rfo8mOLphkMnPBzmv06rbmMrFc7BbmfNfV0zP:Zrh34O/RAzOLphkazmvVrylbiNfVUP

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

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	4468	unregmp2.exe
Token: SeCreatePagefilePrivilege	4468	unregmp2.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4604 wrote to memory of 240	4604	wmplayer.exe	81
PID 4604 wrote to memory of 240	4604	wmplayer.exe	81
PID 4604 wrote to memory of 240	4604	wmplayer.exe	81
PID 4604 wrote to memory of 1700	4604	wmplayer.exe	82
PID 4604 wrote to memory of 1700	4604	wmplayer.exe	82
PID 4604 wrote to memory of 1700	4604	wmplayer.exe	82
PID 1700 wrote to memory of 4468	1700	unregmp2.exe	83
PID 1700 wrote to memory of 4468	1700	unregmp2.exe	83

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\%3F.mp3"
1⤵
- Suspicious use of WriteProcessMemory
PID:4604
- 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\%3F.mp3"
  2⤵
  PID:240
- C:\Windows\SysWOW64\unregmp2.exe
  "C:\Windows\System32\unregmp2.exe" /AsyncFirstLogon
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1700
- - C:\Windows\system32\unregmp2.exe
    "C:\Windows\SysNative\unregmp2.exe" /AsyncFirstLogon /REENTRANT
    3⤵
    - Enumerates connected drives
    - Suspicious use of AdjustPrivilegeToken
    PID:4468

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
512KB

MD5
cb6355679a2862dbd8403fbdb1296a3c

SHA1
9aab02d98fea43a2bc1bd7f54320981f839bea64

SHA256
9d4e2b4b8c984617b8353a1f3253018ff18e2e2acec9f93ec3bc0e48e76d5f93

SHA512
6b195558f2a69e3c99cf2a9be2a4d2afeba5396b258c523499acc741e2ed35565a17ad5de475034b60ed01b528d38fd3b0d2e8c28e55dbd14c0db1810eacc3b2

Download Submit
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
3f27504cf07ebedf6544b9e15371d853

SHA1
58b4d3fe10862a5ced76021bed50d9e1cd69c18e

SHA256
344f58ffeb1fa7c5925f253678ef1a351ecb3125ffde4a6b5b4d7c30bf85957a

SHA512
aa9a6c4c5defdfd96651e8d5056ee97543a02f2a36eedfa7ae142b6a499dd6cc932e9fe7ff16012bedf07aa7bf6b54e1661345e5964236c2e538df5f726fee2c

Download Submit