bcf8855bbb4c637451802b6b6a2b99a4659d65bb98072177eec9e4b6fa6fa2fc

Analysis

max time kernel
112s
max time network
128s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
03/12/2022, 05:25

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General

Target

bcf8855bbb4c637451802b6b6a2b99a4659d65bb98072177eec9e4b6fa6fa2fc.exe
Size

63KB
MD5

e1f0c424d8ba88e556fa4f8c4634c0c1
SHA1

092df188873f7f0891761fe83e57bb64688843b0
SHA256

bcf8855bbb4c637451802b6b6a2b99a4659d65bb98072177eec9e4b6fa6fa2fc
SHA512

d76c3ce1616738bf388808b1c6744e801a843bfc1913e9378d12a956ad8c694e74e7173a4ea0384d70cb6524bb5da9500b0e00b451da1ee81dd79ee1775e76c4
SSDEEP

1536:5gE/bDUMSfI+HLQGFFuXWtmTlU1fcpH4G/InPV1yPT8yosn:5gqDUMj+HXWZ+eHOP7+Ayoo

Score

7^/10

adware stealer

Malware Config

Signatures

Loads dropped DLL 1 IoCs

pid	Process
1076	regsvr32.exe

Installs/modifies Browser Helper Object 2 TTPs 4 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\{0CBE3E7B-00E5-447A-AE66-EBEA2A5E1C2C}\	bcf8855bbb4c637451802b6b6a2b99a4659d65bb98072177eec9e4b6fa6fa2fc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{0CBE3E7B-00E5-447A-AE66-EBEA2A5E1C2C}\ = "Safe_360"	bcf8855bbb4c637451802b6b6a2b99a4659d65bb98072177eec9e4b6fa6fa2fc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\\	bcf8855bbb4c637451802b6b6a2b99a4659d65bb98072177eec9e4b6fa6fa2fc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\ = "Safe_360"	bcf8855bbb4c637451802b6b6a2b99a4659d65bb98072177eec9e4b6fa6fa2fc.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\windows\SysWOW64\SafeM.dll	bcf8855bbb4c637451802b6b6a2b99a4659d65bb98072177eec9e4b6fa6fa2fc.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	\??\c:\windows\info.ini	bcf8855bbb4c637451802b6b6a2b99a4659d65bb98072177eec9e4b6fa6fa2fc.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies registry class 45 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9A85CBDE-9DF2-46AE-9A7C-C905C0E27312}\ = "_Safe_360"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9A85CBDE-9DF2-46AE-9A7C-C905C0E27312}\TypeLib\ = "{8804C78E-5ADC-452C-86CD-EF268A20E8E0}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9A85CBDE-9DF2-46AE-9A7C-C905C0E27312}\ = "_Safe_360"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9A85CBDE-9DF2-46AE-9A7C-C905C0E27312}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8804C78E-5ADC-452C-86CD-EF268A20E8E0}\1.0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8804C78E-5ADC-452C-86CD-EF268A20E8E0}\1.0\ = "security"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8804C78E-5ADC-452C-86CD-EF268A20E8E0}\1.0\FLAGS\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8804C78E-5ADC-452C-86CD-EF268A20E8E0}\1.0\0\win32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9A85CBDE-9DF2-46AE-9A7C-C905C0E27312}\ProxyStubClsid\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0CBE3E7B-00E5-447A-AE66-EBEA2A5E1C2C}\Implemented Categories	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0CBE3E7B-00E5-447A-AE66-EBEA2A5E1C2C}\TypeLib\ = "{8804C78E-5ADC-452C-86CD-EF268A20E8E0}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0CBE3E7B-00E5-447A-AE66-EBEA2A5E1C2C}\VERSION	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0CBE3E7B-00E5-447A-AE66-EBEA2A5E1C2C}\Implemented Categories\{40FC6ED5-2438-11CF-A3DB-080036F12502}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0CBE3E7B-00E5-447A-AE66-EBEA2A5E1C2C}\InprocServer32\ = "C:\\windows\\SysWow64\\SafeM.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9A85CBDE-9DF2-46AE-9A7C-C905C0E27312}\ProxyStubClsid	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8804C78E-5ADC-452C-86CD-EF268A20E8E0}\1.0\0\win32\ = "C:\\windows\\SysWow64\\SafeM.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8804C78E-5ADC-452C-86CD-EF268A20E8E0}\1.0\HELPDIR	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9A85CBDE-9DF2-46AE-9A7C-C905C0E27312}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9A85CBDE-9DF2-46AE-9A7C-C905C0E27312}\TypeLib\ = "{8804C78E-5ADC-452C-86CD-EF268A20E8E0}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0CBE3E7B-00E5-447A-AE66-EBEA2A5E1C2C}\VERSION\ = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0CBE3E7B-00E5-447A-AE66-EBEA2A5E1C2C}\Programmable	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9A85CBDE-9DF2-46AE-9A7C-C905C0E27312}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9A85CBDE-9DF2-46AE-9A7C-C905C0E27312}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0CBE3E7B-00E5-447A-AE66-EBEA2A5E1C2C}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0CBE3E7B-00E5-447A-AE66-EBEA2A5E1C2C}\ = "security.Safe_360"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9A85CBDE-9DF2-46AE-9A7C-C905C0E27312}\ = "Safe_360"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9A85CBDE-9DF2-46AE-9A7C-C905C0E27312}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9A85CBDE-9DF2-46AE-9A7C-C905C0E27312}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\security.Safe_360\ = "security.Safe_360"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\security.Safe_360\Clsid\ = "{0CBE3E7B-00E5-447A-AE66-EBEA2A5E1C2C}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0CBE3E7B-00E5-447A-AE66-EBEA2A5E1C2C}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8804C78E-5ADC-452C-86CD-EF268A20E8E0}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8804C78E-5ADC-452C-86CD-EF268A20E8E0}\1.0\HELPDIR\ = "C:\\windows\\system32"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0CBE3E7B-00E5-447A-AE66-EBEA2A5E1C2C}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0CBE3E7B-00E5-447A-AE66-EBEA2A5E1C2C}\ProgID\ = "security.Safe_360"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0CBE3E7B-00E5-447A-AE66-EBEA2A5E1C2C}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0CBE3E7B-00E5-447A-AE66-EBEA2A5E1C2C}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\security.Safe_360	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8804C78E-5ADC-452C-86CD-EF268A20E8E0}\1.0\FLAGS	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9A85CBDE-9DF2-46AE-9A7C-C905C0E27312}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9A85CBDE-9DF2-46AE-9A7C-C905C0E27312}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9A85CBDE-9DF2-46AE-9A7C-C905C0E27312}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8804C78E-5ADC-452C-86CD-EF268A20E8E0}\1.0\0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9A85CBDE-9DF2-46AE-9A7C-C905C0E27312}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\security.Safe_360\Clsid	regsvr32.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4916	bcf8855bbb4c637451802b6b6a2b99a4659d65bb98072177eec9e4b6fa6fa2fc.exe
4916	bcf8855bbb4c637451802b6b6a2b99a4659d65bb98072177eec9e4b6fa6fa2fc.exe
4916	bcf8855bbb4c637451802b6b6a2b99a4659d65bb98072177eec9e4b6fa6fa2fc.exe
4916	bcf8855bbb4c637451802b6b6a2b99a4659d65bb98072177eec9e4b6fa6fa2fc.exe
4916	bcf8855bbb4c637451802b6b6a2b99a4659d65bb98072177eec9e4b6fa6fa2fc.exe
4916	bcf8855bbb4c637451802b6b6a2b99a4659d65bb98072177eec9e4b6fa6fa2fc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4916	bcf8855bbb4c637451802b6b6a2b99a4659d65bb98072177eec9e4b6fa6fa2fc.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4916 wrote to memory of 1076	4916	bcf8855bbb4c637451802b6b6a2b99a4659d65bb98072177eec9e4b6fa6fa2fc.exe	81
PID 4916 wrote to memory of 1076	4916	bcf8855bbb4c637451802b6b6a2b99a4659d65bb98072177eec9e4b6fa6fa2fc.exe	81
PID 4916 wrote to memory of 1076	4916	bcf8855bbb4c637451802b6b6a2b99a4659d65bb98072177eec9e4b6fa6fa2fc.exe	81

C:\Users\Admin\AppData\Local\Temp\bcf8855bbb4c637451802b6b6a2b99a4659d65bb98072177eec9e4b6fa6fa2fc.exe
"C:\Users\Admin\AppData\Local\Temp\bcf8855bbb4c637451802b6b6a2b99a4659d65bb98072177eec9e4b6fa6fa2fc.exe"
1⤵
- Installs/modifies Browser Helper Object
- Drops file in System32 directory
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4916
- C:\Windows\SysWOW64\regsvr32.exe
  regsvr32 /s C:\windows\system32\SafeM.dll
  2⤵
  - Loads dropped DLL
  - Modifies registry class
  PID:1076

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Browser Extensions

T1176

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\SafeM.dll

Filesize
28KB

MD5
fba85d771616f2632c9891a3d0c343e9

SHA1
135f14bdae84c0de4c22ff8788a9823928917270

SHA256
5fbb7b186a0a4159d647cf72a25deef2ac667ecd45d6731fc3ea0e6b4512a375

SHA512
9ebef8cca7208852ee28fe5a3fac553429ed541307f1ea535a66b81a8a6102354108a6fe415c40616c0d9eecb6e484e125ff29d41222bcd4c1ad615b952a7969

Download Submit
C:\windows\SysWOW64\SafeM.dll

Filesize
28KB

MD5
fba85d771616f2632c9891a3d0c343e9

SHA1
135f14bdae84c0de4c22ff8788a9823928917270

SHA256
5fbb7b186a0a4159d647cf72a25deef2ac667ecd45d6731fc3ea0e6b4512a375

SHA512
9ebef8cca7208852ee28fe5a3fac553429ed541307f1ea535a66b81a8a6102354108a6fe415c40616c0d9eecb6e484e125ff29d41222bcd4c1ad615b952a7969

Download Submit