740235d1d5fa07be507d714d4a2041e1f442cb3c26f87cb492f3d5ff88a72e8a

Analysis

max time kernel
110s
max time network
118s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
01/12/2022, 03:27

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General

Target

740235d1d5fa07be507d714d4a2041e1f442cb3c26f87cb492f3d5ff88a72e8a.dll
Size

702KB
MD5

671e15c112bd2012c54bbf6c5a55d90d
SHA1

a95c02e7c87bd4765a2adb67e8970cd13d0f17c6
SHA256

740235d1d5fa07be507d714d4a2041e1f442cb3c26f87cb492f3d5ff88a72e8a
SHA512

c9d17df88adabece7b0a16f03b935049e661f86c6761dbfa5dfc920b9640d9e57816a9b0d855502833b7584beabbb6f835f69bc1451e5188ba1c99239be6ee24
SSDEEP

12288:FZQCH8vm3j+KL94/4N7Yr0AxaAMwzWWGPNeBCwwN/KtaP7F7W7RqWeP2OZWejijd:svIjRAq8RMwzWWmwwN/KtazF7GR9ePbA

Score

8^/10

adware stealer upx

Malware Config

Signatures

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/memory/672-57-0x0000000001DF0000-0x0000000002129000-memory.dmp	upx
behavioral1/memory/672-60-0x0000000001DF0000-0x0000000002129000-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\{09AFB2CE-9837-CA3E-0CB1-0A0B00C83DF2}	regsvr32.exe

Modifies registry class 11 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{09AFB2CE-9837-CA3E-0CB1-0A0B00C83DF2}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{09AFB2CE-9837-CA3E-0CB1-0A0B00C83DF2}\ = "MS_Plugin"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{09AFB2CE-9837-CA3E-0CB1-0A0B00C83DF2}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{09AFB2CE-9837-CA3E-0CB1-0A0B00C83DF2}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\740235d1d5fa07be507d714d4a2041e1f442cb3c26f87cb492f3d5ff88a72e8a.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{09AFB2CE-9837-CA3E-0CB1-0A0B00C83DF2}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\740235d1d5fa07be507d714d4a2041e1f442cb3c26f87cb492f3d5ff88a72e8a.MS_Plugin_115\Clsid	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\740235d1d5fa07be507d714d4a2041e1f442cb3c26f87cb492f3d5ff88a72e8a.MS_Plugin_115\Clsid\ = "{09AFB2CE-9837-CA3E-0CB1-0A0B00C83DF2}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{09AFB2CE-9837-CA3E-0CB1-0A0B00C83DF2}\ProgID\ = "740235d1d5fa07be507d714d4a2041e1f442cb3c26f87cb492f3d5ff88a72e8a.MS_Plugin_115"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\740235d1d5fa07be507d714d4a2041e1f442cb3c26f87cb492f3d5ff88a72e8a.MS_Plugin_115	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\740235d1d5fa07be507d714d4a2041e1f442cb3c26f87cb492f3d5ff88a72e8a.MS_Plugin_115\ = "MS_Plugin"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{09AFB2CE-9837-CA3E-0CB1-0A0B00C83DF2}\ProgID	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 528 wrote to memory of 672	528	regsvr32.exe	27
PID 528 wrote to memory of 672	528	regsvr32.exe	27
PID 528 wrote to memory of 672	528	regsvr32.exe	27
PID 528 wrote to memory of 672	528	regsvr32.exe	27
PID 528 wrote to memory of 672	528	regsvr32.exe	27
PID 528 wrote to memory of 672	528	regsvr32.exe	27
PID 528 wrote to memory of 672	528	regsvr32.exe	27

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\740235d1d5fa07be507d714d4a2041e1f442cb3c26f87cb492f3d5ff88a72e8a.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:528
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\740235d1d5fa07be507d714d4a2041e1f442cb3c26f87cb492f3d5ff88a72e8a.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:672

Network

MITRE ATT&CK Enterprise v6

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/528-54-0x000007FEFC201000-0x000007FEFC203000-memory.dmp

Filesize
8KB

Download
memory/672-56-0x0000000075DF1000-0x0000000075DF3000-memory.dmp

Filesize
8KB

Download
memory/672-57-0x0000000001DF0000-0x0000000002129000-memory.dmp

Filesize
3.2MB

Download
memory/672-60-0x0000000001DF0000-0x0000000002129000-memory.dmp

Filesize
3.2MB

Download