30ccda753fe39cc8c99cfaef948869f47f0251daf6d1180fbb717a3e6e26b8bf

Analysis

max time kernel
128s
max time network
135s
platform
windows10-2004_x64
resource
win10v2004-20230831-en
resource tags

arch:x64arch:x86image:win10v2004-20230831-enlocale:en-usos:windows10-2004-x64system
submitted
02/09/2023, 05:44

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General

Target

1min_2.mp3
Size

1.5MB
MD5

4fe6ab084e5a735e0dcb7f7be3e5532b
SHA1

1909d72c91638561aa3d3fbf7b5f22272c51095c
SHA256

30ccda753fe39cc8c99cfaef948869f47f0251daf6d1180fbb717a3e6e26b8bf
SHA512

48f08183b19c0b4eb343b120d00f61a04ba2f2c7bc0630bb6b3e6c925412d923e21ed2a878006e3d89261a7222e11b92a3c282ffbcf6c582031861220ca59b2f
SSDEEP

49152:LF6bphlsCYe7btVmVi/IYdmOQ3GJvNWtdoH:Lc7XYUbXiiQ6A3q1YmH

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

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	4140	unregmp2.exe
Token: SeCreatePagefilePrivilege	4140	unregmp2.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 5052 wrote to memory of 432	5052	wmplayer.exe	85
PID 5052 wrote to memory of 432	5052	wmplayer.exe	85
PID 5052 wrote to memory of 432	5052	wmplayer.exe	85
PID 5052 wrote to memory of 1640	5052	wmplayer.exe	86
PID 5052 wrote to memory of 1640	5052	wmplayer.exe	86
PID 5052 wrote to memory of 1640	5052	wmplayer.exe	86
PID 1640 wrote to memory of 4140	1640	unregmp2.exe	87
PID 1640 wrote to memory of 4140	1640	unregmp2.exe	87

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\1min_2.mp3"
1⤵
- Suspicious use of WriteProcessMemory
PID:5052
- 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\1min_2.mp3"
  2⤵
  PID:432
- C:\Windows\SysWOW64\unregmp2.exe
  "C:\Windows\System32\unregmp2.exe" /AsyncFirstLogon
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1640
- - C:\Windows\system32\unregmp2.exe
    "C:\Windows\SysNative\unregmp2.exe" /AsyncFirstLogon /REENTRANT
    3⤵
    - Enumerates connected drives
    - Suspicious use of AdjustPrivilegeToken
    PID:4140

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

Filesize
9KB

MD5
7050d5ae8acfbe560fa11073fef8185d

SHA1
5bc38e77ff06785fe0aec5a345c4ccd15752560e

SHA256
cb87767c4a384c24e4a0f88455f59101b1ae7b4fb8de8a5adb4136c5f7ee545b

SHA512
a7a295ac8921bb3dde58d4bcde9372ed59def61d4b7699057274960fa8c1d1a1daff834a93f7a0698e9e5c16db43af05e9fd2d6d7c9232f7d26ffcff5fc5900b

Download Submit
C:\Users\Admin\AppData\Local\Temp\wmsetup.log

Filesize
1KB

MD5
1e7fdf06b902dabe634336b9de2337ec

SHA1
2c27890393eb2c8fe34a09ff10ccbd3cc71a2f08

SHA256
4704e9fabc0566ae1919763a90b70673cf84c61611418a4b364770ee0662b88e

SHA512
bc36250f3418d311253fb0d6bf6bd36a3974cd29a258ec52c62d7a400877eff780b42ae9d7dd0eedd9e6bcb3422b23e9d00b6cddff0598e4f615db305777f437

Download Submit