bb830e6480d906ea0d25a4cc01f85ec1a3db9fbe0e0f139ff036af2288a2d12a

Analysis

max time kernel
135s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
03/02/2024, 03:18

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General

Target

8b4238d21c4bb1338881a9132e6a515e.dll
Size

252KB
MD5

8b4238d21c4bb1338881a9132e6a515e
SHA1

45e5d9892c294e936eac2426634042d23f8a42b0
SHA256

bb830e6480d906ea0d25a4cc01f85ec1a3db9fbe0e0f139ff036af2288a2d12a
SHA512

63c9621db59a8af51ac76de49c84ef2f2e4e1fc1267a5e5eeee0729ee8e259e670cd0245b3739f757c4ba4c0561fbc710ae416491861cf812c164114db27b4e8
SSDEEP

3072:tuY3H2WT/OmcQau0J7uXhp8l4lqwBVifxyGX2R2CYV7bgd0578GY/Is6CGogU+yo:tdp3iZyGZpvp56/IsVGogUh5koLbOd6

Score

10^/10

persistence

Malware Config

Signatures

Adds autorun key to be loaded by Explorer.exe on startup 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\agrlmvp = "{584A99DA-7979-4C6E-A781-9686A26E02B2}"	rundll32.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{584A99DA-7979-4C6E-A781-9686A26E02B2}	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{584A99DA-7979-4C6E-A781-9686A26E02B2}\InProcServer32\ = "C:\\Windows\\agrlmvp.dll"	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{584A99DA-7979-4C6E-A781-9686A26E02B2}\InProcServer32	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1128 wrote to memory of 4264	1128	rundll32.exe	84
PID 1128 wrote to memory of 4264	1128	rundll32.exe	84
PID 1128 wrote to memory of 4264	1128	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\8b4238d21c4bb1338881a9132e6a515e.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1128
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\8b4238d21c4bb1338881a9132e6a515e.dll,#1
  2⤵
  - Adds autorun key to be loaded by Explorer.exe on startup
  - Modifies registry class
  PID:4264

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

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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