84816eef697569ca7e83eb4057aac9ad302cab45823746f33576b69f76e14a01

Analysis

max time kernel
143s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
21/03/2024, 00:48

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General

Target
da42809fd9c44d35e134396e5c833573.dll
Size 89KB
Sample240321-a55dxagg8s
SHA256 84816eef697569ca7e83eb4057aac9ad302cab45823746f33576b69f76e14a01
MD5 da42809fd9c44d35e134396e5c833573
SHA1 41b3f117b2aa65b407f604cc6dc8c20160432068
SHA512 e604073cdc39dd1b8b0ad5148d24e912b3ede71cf0ef6ffe8f14f06cda2093d83ca70a187888cebcfb56b064e6b7e62d247520377382fa89f954916cfdd65920
SSDEEP 1536:XGxvoZpYWlPi/Zv+SczhZo0DUxdjTG1hIqR1VI4QoVmsXBUk0Hs:Xe2Pi/Zv+3DoNxxAhfd9g6Bn
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

adware stealer upx

Malware Config

Signatures

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/1012-1-0x0000000000400000-0x0000000000437000-memory.dmp	upx
behavioral2/memory/1012-2-0x0000000000400000-0x0000000000437000-memory.dmp	upx
behavioral2/memory/1012-4-0x0000000000400000-0x0000000000437000-memory.dmp	upx

Installs/modifies Browser Helper Object 2 TTPs 1 IoCs

BHOs are DLL modules which act as plugins for Internet Explorer.

stealer adware

Modify Registry

T1112

Browser Extensions

T1176

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{FCB64D7F-EDC6-4B24-87B2-A6A2608182FD}	rundll32.exe

Modifies registry class 6 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FCB64D7F-EDC6-4B24-87B2-A6A2608182FD}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\da42809fd9c44d35e134396e5c833573.dll"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FCB64D7F-EDC6-4B24-87B2-A6A2608182FD}\InprocServer32\ThreadingModel = "apartment"	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FCB64D7F-EDC6-4B24-87B2-A6A2608182FD}\InprocServer32	rundll32.exe
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\{FCB64D7F-EDC6-4B24-87B2-A6A2608182FD}	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 5024 wrote to memory of 1012	5024	rundll32.exe	89
PID 5024 wrote to memory of 1012	5024	rundll32.exe	89
PID 5024 wrote to memory of 1012	5024	rundll32.exe	89

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\da42809fd9c44d35e134396e5c833573.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:5024
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\da42809fd9c44d35e134396e5c833573.dll,#1
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:1012

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Browser Extensions

T1176

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1012-0-0x0000000000540000-0x000000000057A000-memory.dmp

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memory/1012-1-0x0000000000400000-0x0000000000437000-memory.dmp

Download

memory/1012-2-0x0000000000400000-0x0000000000437000-memory.dmp

Download

memory/1012-4-0x0000000000400000-0x0000000000437000-memory.dmp

Download

memory/1012-3-0x0000000000540000-0x000000000057A000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads