3af66fcfb2f8345d2fda0feb8dcd106ef34bf2ef1369cfb846ef2b1689048b32

Analysis

max time kernel
1946s
max time network
1956s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
28/04/2024, 07:14

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General

Target

Fail SERIOUS.mp3
Size

18.7MB
MD5

4be84b11b997394302a9d29d0a2e0734
SHA1

5142d6df2adda36ca8d61a931dc158a937b0ef0e
SHA256

3af66fcfb2f8345d2fda0feb8dcd106ef34bf2ef1369cfb846ef2b1689048b32
SHA512

c25e2f6c66fc7b40c5f139e1fe72b2e95ecfec6ccd19c8681adbda3ebd84c15a6771f13cc7ccf7e27d1fe646bab23b3edf2a1ed49dcbbe4af34428addd930284
SSDEEP

393216:f4VR7kHLQgn7lhVKrGwy9axz9UZrpqyWF6oVt8O:9VHrpqyt1O

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

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	4068	unregmp2.exe
Token: SeCreatePagefilePrivilege	4068	unregmp2.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1760 wrote to memory of 536	1760	wmplayer.exe	84
PID 1760 wrote to memory of 536	1760	wmplayer.exe	84
PID 1760 wrote to memory of 536	1760	wmplayer.exe	84
PID 1760 wrote to memory of 4564	1760	wmplayer.exe	85
PID 1760 wrote to memory of 4564	1760	wmplayer.exe	85
PID 1760 wrote to memory of 4564	1760	wmplayer.exe	85
PID 4564 wrote to memory of 4068	4564	unregmp2.exe	86
PID 4564 wrote to memory of 4068	4564	unregmp2.exe	86

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\Fail SERIOUS.mp3"
1⤵
- Suspicious use of WriteProcessMemory
PID:1760
- 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\Fail SERIOUS.mp3"
  2⤵
  PID:536
- C:\Windows\SysWOW64\unregmp2.exe
  "C:\Windows\System32\unregmp2.exe" /AsyncFirstLogon
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4564
- - C:\Windows\system32\unregmp2.exe
    "C:\Windows\SysNative\unregmp2.exe" /AsyncFirstLogon /REENTRANT
    3⤵
    - Enumerates connected drives
    - Suspicious use of AdjustPrivilegeToken
    PID:4068

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
256KB

MD5
563088ad0f20fabf9dd62c6ba8ae1636

SHA1
f9cd2fd153afa1a12ff990cf27c32b8c9c44e878

SHA256
eb897bf202d32f067728f1b666eb16e9926557efa8676b72db11411013030184

SHA512
8229dfb1d96b6a34b91b1e5c463833e7859331be880f585c48af1ba0ace0465ac755c7f22a9e6f30284266165f850e8f85af76157eea8136b2d6f79db02d3092

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
e1c421711679e28d0bb35358e657fbe0

SHA1
0fb119079fcfd7b5f63c9e01337925ac4b975874

SHA256
7b14689d7fcc96038751e5d647e6d24effc0d694a1e93d602c506a7017c9b074

SHA512
508ae17345e2eebf2c987a38d3a04cd562d23c7733196d8ed93a6160edbf55afc8891f49bed4a0e6068365009394e4b1bd2d177d61c1b6f035ae4b0581522225

Download Submit