196a1c45bb3aa0cbbdb91b33e1f66307ea5137b81df3c64196bee659b91f862c

Analysis

max time kernel
141s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20230703-en
resource tags

arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
submitted
21/08/2023, 21:05

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General

Target

VoiceMessage.wav
Size

173KB
MD5

02497f1f5612ae806dc6df6f4cd78f1d
SHA1

8bd233720b01167ed6637c3e83b8d5d083e19a73
SHA256

196a1c45bb3aa0cbbdb91b33e1f66307ea5137b81df3c64196bee659b91f862c
SHA512

64217aeebcd6a6061fe0716e28c6942de1e3815cf767247fc14a85d7b6161b081ee1552e4a0ffc881527d55cb17c044a0ab68905cac9101ae1439646f000a13a
SSDEEP

3072:Q/mYUAGmY4hJh2kC7teEAuAHGtJkzyt+QLRzSQC/3D9kJ17NNS6XIMr+HuN:hYUASoJecEAuiG1ZLRzqUhe+Cg

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

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	1316	unregmp2.exe
Token: SeCreatePagefilePrivilege	1316	unregmp2.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1364 wrote to memory of 1556	1364	wmplayer.exe	83
PID 1364 wrote to memory of 1556	1364	wmplayer.exe	83
PID 1364 wrote to memory of 1556	1364	wmplayer.exe	83
PID 1364 wrote to memory of 3848	1364	wmplayer.exe	84
PID 1364 wrote to memory of 3848	1364	wmplayer.exe	84
PID 1364 wrote to memory of 3848	1364	wmplayer.exe	84
PID 3848 wrote to memory of 1316	3848	unregmp2.exe	85
PID 3848 wrote to memory of 1316	3848	unregmp2.exe	85

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\VoiceMessage.wav"
1⤵
- Suspicious use of WriteProcessMemory
PID:1364
- 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\VoiceMessage.wav"
  2⤵
  PID:1556
- C:\Windows\SysWOW64\unregmp2.exe
  "C:\Windows\System32\unregmp2.exe" /AsyncFirstLogon
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3848
- - C:\Windows\system32\unregmp2.exe
    "C:\Windows\SysNative\unregmp2.exe" /AsyncFirstLogon /REENTRANT
    3⤵
    - Enumerates connected drives
    - Suspicious use of AdjustPrivilegeToken
    PID:1316

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

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
414dd157e3c6b36eb2ea1be39342890a

SHA1
1bd29418cfdac1f3d0c4a55521396bc48582d676

SHA256
6e84c71ea6d8c5b893237c3458c615790f3b409e4602c4b57fb42e2c19781d1b

SHA512
c73f21ecb6aa75c53490506485da4f5d604deed9bb817c6e1cdc8143cfb745bdce10a5bc56d28e32e1c6d33804bed1c1bec9e978f23f01f5afaff4c5a3698206

Download Submit