31d66dd838b4f7fd10513f8f84d85cc691c27356a9e86e48e3669c1f3f537342

Analysis

max time kernel
187s
max time network
257s
platform
windows10-1703_x64
resource
win10-20240214-en
resource tags

arch:x64arch:x86image:win10-20240214-enlocale:en-usos:windows10-1703-x64system
submitted
19/02/2024, 20:57

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General

Target

9fdnHxWR9eGzMag3.mp4
Size

181KB
MD5

49926abab2b19c7e021af51393c5bc3c
SHA1

3570ef6015d965a86ee8158ea0902bd4f0a12a5b
SHA256

31d66dd838b4f7fd10513f8f84d85cc691c27356a9e86e48e3669c1f3f537342
SHA512

5581ecc4aa2183bad42dfd9261864b270452f57ad8fd0c03891c5ace54cfcbad2a0f58cc1bb742e789204d4e7e113d64bf6c0850dc9202e5d82571a6b4cf8236
SSDEEP

3072:UHUm37/qKvj7kdd1TQLBTvF397UjFdgDq/b5tmytZ0kAY05Zr1FllKaj:UH5L/Bj7kdd16FtUFiDq/bjm8Z0DOaj

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)	\??\K:	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)	\??\O:	unregmp2.exe
File opened (read-only)	\??\V:	unregmp2.exe
File opened (read-only)	\??\A:	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)	\??\J:	unregmp2.exe
File opened (read-only)	\??\W:	unregmp2.exe
File opened (read-only)	\??\X:	unregmp2.exe
File opened (read-only)	\??\Y:	unregmp2.exe
File opened (read-only)	\??\I:	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)	\??\P:	unregmp2.exe
File opened (read-only)	\??\U:	unregmp2.exe
File opened (read-only)	\??\S:	unregmp2.exe
File opened (read-only)	\??\T:	unregmp2.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	164	unregmp2.exe
Token: SeCreatePagefilePrivilege	164	unregmp2.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3696 wrote to memory of 1516	3696	wmplayer.exe	72
PID 3696 wrote to memory of 1516	3696	wmplayer.exe	72
PID 3696 wrote to memory of 1516	3696	wmplayer.exe	72
PID 3696 wrote to memory of 4880	3696	wmplayer.exe	73
PID 3696 wrote to memory of 4880	3696	wmplayer.exe	73
PID 3696 wrote to memory of 4880	3696	wmplayer.exe	73
PID 4880 wrote to memory of 164	4880	unregmp2.exe	74
PID 4880 wrote to memory of 164	4880	unregmp2.exe	74

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\9fdnHxWR9eGzMag3.mp4"
1⤵
- Suspicious use of WriteProcessMemory
PID:3696
- 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\9fdnHxWR9eGzMag3.mp4"
  2⤵
  PID:1516
- C:\Windows\SysWOW64\unregmp2.exe
  "C:\Windows\System32\unregmp2.exe" /AsyncFirstLogon
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4880
- - C:\Windows\System32\unregmp2.exe
    "C:\Windows\SysNative\unregmp2.exe" /AsyncFirstLogon /REENTRANT
    3⤵
    - Enumerates connected drives
    - Suspicious use of AdjustPrivilegeToken
    PID:164

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
98df921f667bf303621c789390ed9f2e

SHA1
d9c82e51534cf1c2eb5a255286de6a09ca364d1a

SHA256
8b8497d37fa9ddd44e275aa7631d7c7173c384a501d11e73e3d4401513c4bbe3

SHA512
58e896295763c2729c5a19986356e7cc7706265bbda5cd9cec98201ec9ce86c4b68a3e388c86aba198870ca4b8ab1a7876f2d8e1fff7437216dd2789b3ed3796

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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
7080d46ebca59f639f2d7ca019ed106b

SHA1
90aa0742a5f3fa19b063a2ca3bd999c0aef491c6

SHA256
283cd639b39097f7a7cf0295334e653498293db21dd59f03ce4bbec1d180af94

SHA512
2645b2aa255fee5c5448c5fcdaa3cc8afe11d90a4d1ca986dcbf1cf8430964e7639683fbab595000d9ae4b820129812685f6181c0dfb1fcff9fd5ff04ac55101

Download Submit