d683c55ece3d1e4a45cc6a8e4256189e5b24def05e50ad13177efcd94e66467d

Analysis

max time kernel
141s
max time network
151s
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, 06:50

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General

Target
8bad945cd9f60c56a9024bcc74cdbcf8.dll
Size 634KB
Sample240203-hmfltsbed4
SHA256 d683c55ece3d1e4a45cc6a8e4256189e5b24def05e50ad13177efcd94e66467d
MD5 8bad945cd9f60c56a9024bcc74cdbcf8
SHA1 65d9ebb03d412ae85465a60daf4d7788ec29e8cf
SHA512 5a7a53239ca08351ba9051379d43e9ce0e8eabf7027f3e5d24638a2e0f4eb1e066be33a6e772db54dc017ce876eab34ecff5e7fdcfc8841305869aaffc57c2d9
SSDEEP 12288:+M0t9FNcxDMmfrLAF8rZIRf2MmsXaief6Hhf/fO79s:2tjNcXnVInvaief8hf
MD5 SHA1 SHA512 SSDEEP

Score

6^/10

adware stealer

Malware Config

Signatures

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\{CC01FC6C-6818-585A-64CF-1B88ED8EE7BA}	regsvr32.exe

Modifies registry class 11 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-6818-585A-64CF-1B88ED8EE7BA}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\8bad945cd9f60c56a9024bcc74cdbcf8.axc	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\8bad945cd9f60c56a9024bcc74cdbcf8.axc\ = "axc"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-6818-585A-64CF-1B88ED8EE7BA}\ProgID\ = "8bad945cd9f60c56a9024bcc74cdbcf8.axc"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-6818-585A-64CF-1B88ED8EE7BA}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-6818-585A-64CF-1B88ED8EE7BA}\ = "axc"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\8bad945cd9f60c56a9024bcc74cdbcf8.axc\Clsid	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\8bad945cd9f60c56a9024bcc74cdbcf8.axc\Clsid\ = "{CC01FC6C-6818-585A-64CF-1B88ED8EE7BA}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-6818-585A-64CF-1B88ED8EE7BA}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-6818-585A-64CF-1B88ED8EE7BA}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\8bad945cd9f60c56a9024bcc74cdbcf8.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-6818-585A-64CF-1B88ED8EE7BA}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2604 wrote to memory of 4608	2604	regsvr32.exe	84
PID 2604 wrote to memory of 4608	2604	regsvr32.exe	84
PID 2604 wrote to memory of 4608	2604	regsvr32.exe	84

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\8bad945cd9f60c56a9024bcc74cdbcf8.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2604
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\8bad945cd9f60c56a9024bcc74cdbcf8.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:4608

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/4608-0-0x0000000000C30000-0x0000000000CD4000-memory.dmp

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