808e2e16bc542a5b3d4a4524866d1b4c0756b3a38e87b731cd875d0473965eaa

Analysis

max time kernel
1738s
max time network
1587s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
02/04/2023, 17:37

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General

Target

6B4E192346495DAA7A6672634D80B2A4_video_dashinit.mp4
Size

372KB
MD5

5b472dcb27c74165fdbd42651462cde2
SHA1

971b895f73d24ce2296e1412f48e1a24ecf5d817
SHA256

808e2e16bc542a5b3d4a4524866d1b4c0756b3a38e87b731cd875d0473965eaa
SHA512

27a4d452099e88a59dfe55439b692e0efa40dd3380c97028a7a259e038b79e59fb3857c4348c2d97de21704ac0018121c8c4be1e18e610eff22317f7b52fcf20
SSDEEP

6144:2BFri+Tey+rP7G/zrwYGx9cgnm9Z9NSnhmhhjFMgH4PsnfegGO/aE0VemyPOYYe2:2iJrszcRmgcZ9ahCF3HEsfegfyE0VemP

Score

6^/10

Malware Config

Signatures

Enumerates connected drives 3 TTPs 24 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)	\??\A:	unregmp2.exe
File opened (read-only)	\??\B:	unregmp2.exe
File opened (read-only)	\??\F:	unregmp2.exe
File opened (read-only)	\??\I:	unregmp2.exe
File opened (read-only)	\??\L:	unregmp2.exe
File opened (read-only)	\??\N:	unregmp2.exe
File opened (read-only)	\??\Y:	unregmp2.exe
File opened (read-only)	\??\Z:	unregmp2.exe
File opened (read-only)	\??\H:	unregmp2.exe
File opened (read-only)	\??\J:	unregmp2.exe
File opened (read-only)	\??\P:	unregmp2.exe
File opened (read-only)	\??\R:	unregmp2.exe
File opened (read-only)	\??\S:	unregmp2.exe
File opened (read-only)	\??\U:	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)	\??\O:	unregmp2.exe
File opened (read-only)	\??\V:	unregmp2.exe
File opened (read-only)	\??\W:	unregmp2.exe
File opened (read-only)	\??\G:	unregmp2.exe
File opened (read-only)	\??\Q:	unregmp2.exe
File opened (read-only)	\??\T:	unregmp2.exe
File opened (read-only)	\??\X:	unregmp2.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	716	unregmp2.exe
Token: SeCreatePagefilePrivilege	716	unregmp2.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 452 wrote to memory of 3084	452	wmplayer.exe	83
PID 452 wrote to memory of 3084	452	wmplayer.exe	83
PID 452 wrote to memory of 3084	452	wmplayer.exe	83
PID 452 wrote to memory of 4252	452	wmplayer.exe	84
PID 452 wrote to memory of 4252	452	wmplayer.exe	84
PID 452 wrote to memory of 4252	452	wmplayer.exe	84
PID 4252 wrote to memory of 716	4252	unregmp2.exe	85
PID 4252 wrote to memory of 716	4252	unregmp2.exe	85

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\6B4E192346495DAA7A6672634D80B2A4_video_dashinit.mp4"
1⤵
- Suspicious use of WriteProcessMemory
PID:452
- 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\6B4E192346495DAA7A6672634D80B2A4_video_dashinit.mp4"
  2⤵
  PID:3084
- C:\Windows\SysWOW64\unregmp2.exe
  "C:\Windows\System32\unregmp2.exe" /AsyncFirstLogon
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4252
- - C:\Windows\system32\unregmp2.exe
    "C:\Windows\SysNative\unregmp2.exe" /AsyncFirstLogon /REENTRANT
    3⤵
    - Enumerates connected drives
    - Suspicious use of AdjustPrivilegeToken
    PID:716

Network

MITRE ATT&CK Enterprise v6

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
dbfc662304aa4236ac6c685fdd3ee597

SHA1
bee96b9256c93a35398a8c6a341da9470c6101c2

SHA256
dfd76fd8ae4d04c006729be160e7c23fe8e003e7094a54abf3a5aaee1a5c5590

SHA512
6730c50e8217e93d819b24a76af50ed9afeb34c73f32bcf65cca1bac139219c4897f7a43faa7a88909b32777420f47beb2a1ab23fad5886ef4da35226305c42b

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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
2ab6faf809e1c8bc571b9569723695cf

SHA1
2ab46726a95b010bd88e6b2148ede91f3d45d799

SHA256
46179565143d43fdaa5503d217cb8c73d5c80a41ca6466cde49df04cfdc649ff

SHA512
59978ad937f842931c5784ffe53663d2fe7c0f04da168c197db8b3b32039b606ab9ded98d3a5235812114cd63ed1a7e3318a1b807adb61e2835f644ea6fdef6f

Download Submit