dafe2ef1f5b38be10a074295677801c5ba717f68d00f4ff93f5c69468684533e

Analysis

max time kernel
1475s
max time network
1491s
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, 15:39

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

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	1520	unregmp2.exe
Token: SeCreatePagefilePrivilege	1520	unregmp2.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1608 wrote to memory of 1716	1608	wmplayer.exe	82
PID 1608 wrote to memory of 1716	1608	wmplayer.exe	82
PID 1608 wrote to memory of 1716	1608	wmplayer.exe	82
PID 1608 wrote to memory of 1288	1608	wmplayer.exe	83
PID 1608 wrote to memory of 1288	1608	wmplayer.exe	83
PID 1608 wrote to memory of 1288	1608	wmplayer.exe	83
PID 1288 wrote to memory of 1520	1288	unregmp2.exe	84
PID 1288 wrote to memory of 1520	1288	unregmp2.exe	84

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:1608
- 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:1716
- C:\Windows\SysWOW64\unregmp2.exe
  "C:\Windows\System32\unregmp2.exe" /AsyncFirstLogon
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1288
- - C:\Windows\system32\unregmp2.exe
    "C:\Windows\SysNative\unregmp2.exe" /AsyncFirstLogon /REENTRANT
    3⤵
    - Enumerates connected drives
    - Suspicious use of AdjustPrivilegeToken
    PID:1520

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
e709816d7074410920fe4815d4ba6f6e

SHA1
cc8c7f106270cc8c0bb58204a680d0f50ac54859

SHA256
57f6039da23299fea0006f191fd2fa1ff515336f130ccef0382b016f59effbc7

SHA512
f6c020ecf8e7a323d7555358bae5e844450078ac345ab56e45292b8670c87c203de8b462e8f79a0f121cf71277e195415ac7f19cc56144d9eeab892bbf5dff6f

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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
340c91af42adfe43e4416af85f089485

SHA1
e3c62fdd0a12d8cae5e103411ee6d9f75a61ecee

SHA256
559c04591a016939dcb148b388871da6babb25e1f2591a586b5340d158431faa

SHA512
aba392b867894328e6ecafbc3454b05c42bd630de9d036b7806629e04cca9342173ae851c8ef839c8285293937c5108a349c9c65660b9ea65b270aff657dbb03

Download Submit