e9210ff311e18a2740b4a1b084750032f398c97ee3eba5209b7a2439085a9963

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
27/03/2024, 10:59

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General

Target
e17fb88a0325272a9e6e0448695ca2b3.dll
Size 640KB
Sample240327-m3gahsaf45
SHA256 e9210ff311e18a2740b4a1b084750032f398c97ee3eba5209b7a2439085a9963
MD5 e17fb88a0325272a9e6e0448695ca2b3
SHA1 d48f8ec5f353649e4ca46d69608f5170ebfc6d25
SHA512 0d47d591ccb6698465b0e852761e8282f95c0f051654521b72b9cbf3a984f97c91a59fa02fd6094fe5e40cbbf611675cacb542891ba4f4de350f894cd35a11da
SSDEEP 12288:3kdtYzsZDM2fjYiV/UzxoyS7nUmsn7lqjNh+32tePm:0dGzs/0kwolUf7lqhh+3A+
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-AA2E-E31F-23BF-48D3EAF93611}	regsvr32.exe

Modifies registry class 11 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-AA2E-E31F-23BF-48D3EAF93611}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-AA2E-E31F-23BF-48D3EAF93611}\ = "brm inc"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-AA2E-E31F-23BF-48D3EAF93611}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\e17fb88a0325272a9e6e0448695ca2b3.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-AA2E-E31F-23BF-48D3EAF93611}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\e17fb88a0325272a9e6e0448695ca2b3.brm inc\Clsid	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-AA2E-E31F-23BF-48D3EAF93611}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\e17fb88a0325272a9e6e0448695ca2b3.brm inc	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\e17fb88a0325272a9e6e0448695ca2b3.brm inc\ = "brm inc"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\e17fb88a0325272a9e6e0448695ca2b3.brm inc\Clsid\ = "{CC01FC6C-AA2E-E31F-23BF-48D3EAF93611}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-AA2E-E31F-23BF-48D3EAF93611}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-AA2E-E31F-23BF-48D3EAF93611}\ProgID\ = "e17fb88a0325272a9e6e0448695ca2b3.brm inc"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1972 wrote to memory of 3384	1972	regsvr32.exe	88
PID 1972 wrote to memory of 3384	1972	regsvr32.exe	88
PID 1972 wrote to memory of 3384	1972	regsvr32.exe	88

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\e17fb88a0325272a9e6e0448695ca2b3.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1972
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\e17fb88a0325272a9e6e0448695ca2b3.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:3384

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/3384-0-0x0000000000830000-0x00000000008D4000-memory.dmp

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