b7e59768071d2e1fa278737c39770d2c712cc4c7c9a631c42ae06b7acd4f679a

Analysis

max time kernel
127s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
08/10/2023, 00:49

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

BackOnTrack.mp3
Size

1.3MB
MD5

815d221afd1744bd11028c3be3387a82
SHA1

c434ea61c76e90586ceb9734dea377188ff00c40
SHA256

d5970a5845f2986ef00404aced65bf583c8ea95fa68be70a2542eaac765d5edf
SHA512

578473f3eea875f8bb53bfa451ac6eb951e2b5facc787ebe7b678800b9d7f40f9b1f5b8bb5417cd73659f880d35b431a9acbcdb3ee5e97014a8019de55b5ebc4
SSDEEP

24576:L0K/R5r5fwPRwSGTS5vuA5P03ccurXp/yjdKWWQH54aCtTwgF6IpjjGuv:gK/14JwnSw2XAgRo5H88gFfPv

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

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	1656	unregmp2.exe
Token: SeCreatePagefilePrivilege	1656	unregmp2.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4204 wrote to memory of 4824	4204	wmplayer.exe	85
PID 4204 wrote to memory of 4824	4204	wmplayer.exe	85
PID 4204 wrote to memory of 4824	4204	wmplayer.exe	85
PID 4204 wrote to memory of 3256	4204	wmplayer.exe	86
PID 4204 wrote to memory of 3256	4204	wmplayer.exe	86
PID 4204 wrote to memory of 3256	4204	wmplayer.exe	86
PID 3256 wrote to memory of 1656	3256	unregmp2.exe	87
PID 3256 wrote to memory of 1656	3256	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\BackOnTrack.mp3"
1⤵
- Suspicious use of WriteProcessMemory
PID:4204
- 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\BackOnTrack.mp3"
  2⤵
  PID:4824
- C:\Windows\SysWOW64\unregmp2.exe
  "C:\Windows\System32\unregmp2.exe" /AsyncFirstLogon
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3256
- - C:\Windows\system32\unregmp2.exe
    "C:\Windows\SysNative\unregmp2.exe" /AsyncFirstLogon /REENTRANT
    3⤵
    - Enumerates connected drives
    - Suspicious use of AdjustPrivilegeToken
    PID:1656

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\Media Player\CurrentDatabase_400.wmdb

Filesize
1024KB

MD5
b27fb1ce7da6644e85038eb6d5f82ad6

SHA1
e4167cbee3cf1d7f0f523b7c03bc54e84586fac2

SHA256
4093100d618cddbaf152c52ba21c0aef5614620ddc5fa3a785dc9241f5548881

SHA512
c6dbb5991d8d439305ddcdda3406d171fb87113960aa660aa55254eac3c4d4a82c77f5bc36c9b4525dde6c53226e8120d8fa49e11119012b65b3e764b4d75083

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows Media\12.0\WMSDKNS.XML.bak

Filesize
9KB

MD5
7050d5ae8acfbe560fa11073fef8185d

SHA1
5bc38e77ff06785fe0aec5a345c4ccd15752560e

SHA256
cb87767c4a384c24e4a0f88455f59101b1ae7b4fb8de8a5adb4136c5f7ee545b

SHA512
a7a295ac8921bb3dde58d4bcde9372ed59def61d4b7699057274960fa8c1d1a1daff834a93f7a0698e9e5c16db43af05e9fd2d6d7c9232f7d26ffcff5fc5900b

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

Filesize
1KB

MD5
56299ebb6462c92e21ff375e3fd9dece

SHA1
b57d0ee5634dba5a9ce55bf605f21f86a03edd2e

SHA256
476f316899bace30fd3ff66941fc37afce2f19492d870ec51a96d5a860a16ef0

SHA512
dd60d242eeb3056a167c45df88f7d393da6890ac976ac72c6a65ad8697e5f8ab0e423de7e8b39bbaeb7bbf52a622180b76e67067d795fc88ca2e301c1bf8e191

Download Submit