4c403df643122f1d68ff7b50101aeb3a981fbcf9438f6c1fa9b66be18024bd6b

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
28-01-2024 08:18

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General

Target

7c9e35951b57a010bc74b89f66a28a41.dll
Size

640KB
MD5

7c9e35951b57a010bc74b89f66a28a41
SHA1

06a8dcf540784f610bceba39e5de5947f6be5a7a
SHA256

4c403df643122f1d68ff7b50101aeb3a981fbcf9438f6c1fa9b66be18024bd6b
SHA512

93cf39cb6db345228c87c2fae7ada1e861f23773db266a8658f382a1a604a8533da4bbfdcec381be342e205a2d3e6e31fca6c46c7583fbf5a4cd706791e8c7ef
SSDEEP

12288:O0Et9YDc5DMWfT44XUDxoyiD02sHL1n19Nqh+d2tePm:+tWDc/EXouPL1n19Qh+dA+

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-5893-A143-EBF2-88F59EF5FC12}	regsvr32.exe

Modifies registry class 11 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\7c9e35951b57a010bc74b89f66a28a41.brm inc\Clsid	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\7c9e35951b57a010bc74b89f66a28a41.brm inc\Clsid\ = "{CC01FC6C-5893-A143-EBF2-88F59EF5FC12}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-5893-A143-EBF2-88F59EF5FC12}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-5893-A143-EBF2-88F59EF5FC12}\ = "brm inc"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-5893-A143-EBF2-88F59EF5FC12}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\7c9e35951b57a010bc74b89f66a28a41.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-5893-A143-EBF2-88F59EF5FC12}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\7c9e35951b57a010bc74b89f66a28a41.brm inc	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\7c9e35951b57a010bc74b89f66a28a41.brm inc\ = "brm inc"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-5893-A143-EBF2-88F59EF5FC12}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-5893-A143-EBF2-88F59EF5FC12}\ProgID\ = "7c9e35951b57a010bc74b89f66a28a41.brm inc"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-5893-A143-EBF2-88F59EF5FC12}\InprocServer32	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1944 wrote to memory of 2224	1944	regsvr32.exe	16
PID 1944 wrote to memory of 2224	1944	regsvr32.exe	16
PID 1944 wrote to memory of 2224	1944	regsvr32.exe	16
PID 1944 wrote to memory of 2224	1944	regsvr32.exe	16
PID 1944 wrote to memory of 2224	1944	regsvr32.exe	16
PID 1944 wrote to memory of 2224	1944	regsvr32.exe	16
PID 1944 wrote to memory of 2224	1944	regsvr32.exe	16

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\7c9e35951b57a010bc74b89f66a28a41.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1944
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\7c9e35951b57a010bc74b89f66a28a41.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:2224

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/2224-0-0x00000000022B0000-0x0000000002355000-memory.dmp

Filesize
660KB

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