13037b749aa4b1eda538fda26d6ac41c8f7b1d02d83f47b0d187dd645154e033

Analysis

max time kernel
142s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
10-04-2024 09:41

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General

Target

13037b749aa4b1eda538fda26d6ac41c8f7b1d02d83f47b0d187dd645154e033.dll
Size

219KB
MD5

ecce8845921a91854ab34bff2623151e
SHA1

736a4cfad1ed83a6a0b75b0474d5e01a3a36f950
SHA256

13037b749aa4b1eda538fda26d6ac41c8f7b1d02d83f47b0d187dd645154e033
SHA512

36fda34df70629d054a55823a3cc83f9599446b36576fbc86a6aac6564460789e8b141eeb168d3e4578f28182da874dd840e57b642af1a1a315dfe08a17b53e0
SSDEEP

6144:pjU6yx1p7lvER8SPD/xzL0ruSSbAOfyV:Ju1pZvPuDF0ruSSbkV

Score

6^/10

bootkit persistence

Malware Config

Signatures

Enumerates connected drives 3 TTPs 2 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)	\??\D:	rundll32.exe
File opened (read-only)	\??\F:	rundll32.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1432 wrote to memory of 4724	1432	rundll32.exe	91
PID 1432 wrote to memory of 4724	1432	rundll32.exe	91
PID 1432 wrote to memory of 4724	1432	rundll32.exe	91

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\13037b749aa4b1eda538fda26d6ac41c8f7b1d02d83f47b0d187dd645154e033.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1432
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\13037b749aa4b1eda538fda26d6ac41c8f7b1d02d83f47b0d187dd645154e033.dll,#1
  2⤵
  - Enumerates connected drives
  - Writes to the Master Boot Record (MBR)
  PID:4724

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4004 --field-trial-handle=2264,i,15001568551143786084,90255922961447677,262144 --variations-seed-version /prefetch:8
1⤵
PID:2752

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Defense Evasion

Pre-OS Boot

T1542

Bootkit

T1542.003

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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