ab89aac15f38f7b22c639ab93c1008f86c755b751b6d325afeb42cabf2f1dfea

Analysis

max time kernel
142s
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
16/02/2024, 01:03

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General

Target
9f0a4b38e99351c93172d13eaaa624d1.dll
Size 63KB
Sample240216-beb54sdb4v
SHA256 ab89aac15f38f7b22c639ab93c1008f86c755b751b6d325afeb42cabf2f1dfea
MD5 9f0a4b38e99351c93172d13eaaa624d1
SHA1 9de3ad1121cbec16ab2771dfca21df1badff03c5
SHA512 73f1382a79a4c4189706488cfc46f803b682a7ef5d27dddca9965e69f20ace428ddff0e8721f06495fbc17f95e71760b3a1fd9b6b61ccd8cd33a341b7d69eccf
SSDEEP 768:nHpI5EBmwLXHN6RRHHdB+BmHY97o014/89GH4X6Mgd90YQFO6ZXsSKhAUlxSoLe:nJIMlt6RRdOm214/hVh4KhHnZC
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

adware stealer upx

Malware Config

Signatures

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1640-0-0x0000000010000000-0x000000001002B000-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\{938A8A03-A938-4019-B764-03FF8D167D79}	rundll32.exe

Modifies registry class 4 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{938A8A03-A938-4019-B764-03FF8D167D79}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\9f0a4b38e99351c93172d13eaaa624d1.dll"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{938A8A03-A938-4019-B764-03FF8D167D79}\InprocServer32\ThreadingModel = "Both"	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{938A8A03-A938-4019-B764-03FF8D167D79}	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{938A8A03-A938-4019-B764-03FF8D167D79}\InprocServer32	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3664 wrote to memory of 1640	3664	rundll32.exe	84
PID 3664 wrote to memory of 1640	3664	rundll32.exe	84
PID 3664 wrote to memory of 1640	3664	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\9f0a4b38e99351c93172d13eaaa624d1.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3664
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\9f0a4b38e99351c93172d13eaaa624d1.dll,#1
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:1640

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

Replay Monitor

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Downloads

memory/1640-0-0x0000000010000000-0x000000001002B000-memory.dmp

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