bcbc236f8906cdb5b12e2ae1e557e62906b1c8dca30a6412a4614e65e6bbf513

Analysis

max time kernel
43s
max time network
31s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
03/12/2022, 14:13

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General

Target

bcbc236f8906cdb5b12e2ae1e557e62906b1c8dca30a6412a4614e65e6bbf513.dll
Size

192KB
MD5

8d4015bbd14c8e50015b8f91e9262f68
SHA1

61b8615c49ff495c95eb70361dec1d94b99bca60
SHA256

bcbc236f8906cdb5b12e2ae1e557e62906b1c8dca30a6412a4614e65e6bbf513
SHA512

dbb5f6f03c64bcdc10f7d94790a6213cac122efaf275e8aade5612ce60e249330dc561476c523ad8be996a1af576a10a4c2f4942d8347e236a8f0f5a2315c99d
SSDEEP

3072:XQ7pWdHCS+lwr3D1LeAOGGuL2+MSpFRe+nE285wGlEdUcKGv86:XYWdHCSX1LWGGuC3Spy282GlEdGGU6

Score

8^/10

adware persistence stealer

Malware Config

Signatures

Sets file execution options in registry 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ctfmon.exe	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ctfmon.exe\Debugger = "C:\\Windows\\system32\\ctfmon_no.exe"	regsvr32.exe

Installs/modifies Browser Helper Object 2 TTPs 3 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	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{4FB0DC35-54F4-3B4C-8358-373EB0A9B1EA}	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{4FB0DC35-54F4-3B4C-8358-373EB0A9B1EA}\IExplore = "1"	regsvr32.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\ctfmon_no.exe	regsvr32.exe

Modifies registry class 41 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4FB0DC35-54F4-3B4C-8358-373EB0A9B1EA}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\bcbc236f8906cdb5b12e2ae1e557e62906b1c8dca30a6412a4614e65e6bbf513.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{E0FC924A-A7AD-3592-86DD-969A7E9F6DCA}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{E0FC924A-A7AD-3592-86DD-969A7E9F6DCA}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{E0FC924A-A7AD-3592-86DD-969A7E9F6DCA}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{AEC1D26D-7278-3BAC-B3E7-C736EB73A552}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\bcbc236f8906cdb5b12e2ae1e557e62906b1c8dca30a6412a4614e65e6bbf513.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{E0FC924A-A7AD-3592-86DD-969A7E9F6DCA}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{E0FC924A-A7AD-3592-86DD-969A7E9F6DCA}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{E0FC924A-A7AD-3592-86DD-969A7E9F6DCA}\ = "IDOMPeek"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{E0FC924A-A7AD-3592-86DD-969A7E9F6DCA}\TypeLib\ = "{AEC1D26D-7278-3BAC-B3E7-C736EB73A552}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{E0FC924A-A7AD-3592-86DD-969A7E9F6DCA}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{E0FC924A-A7AD-3592-86DD-969A7E9F6DCA}\TypeLib\ = "{AEC1D26D-7278-3BAC-B3E7-C736EB73A552}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4FB0DC35-54F4-3B4C-8358-373EB0A9B1EA}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{AEC1D26D-7278-3BAC-B3E7-C736EB73A552}\1.0\FLAGS	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{AEC1D26D-7278-3BAC-B3E7-C736EB73A552}\1.0\FLAGS\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{AEC1D26D-7278-3BAC-B3E7-C736EB73A552}\1.0\HELPDIR	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{E0FC924A-A7AD-3592-86DD-969A7E9F6DCA}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{E0FC924A-A7AD-3592-86DD-969A7E9F6DCA}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\D.1\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4FB0DC35-54F4-3B4C-8358-373EB0A9B1EA}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{AEC1D26D-7278-3BAC-B3E7-C736EB73A552}\1.0\0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4FB0DC35-54F4-3B4C-8358-373EB0A9B1EA}\VersionIndependentProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{E0FC924A-A7AD-3592-86DD-969A7E9F6DCA}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{E0FC924A-A7AD-3592-86DD-969A7E9F6DCA}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\D.1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\D.1\CLSID\ = "{4FB0DC35-54F4-3B4C-8358-373EB0A9B1EA}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\D\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{AEC1D26D-7278-3BAC-B3E7-C736EB73A552}\1.0\ = "LIB"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{AEC1D26D-7278-3BAC-B3E7-C736EB73A552}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\D.1\ = "D"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4FB0DC35-54F4-3B4C-8358-373EB0A9B1EA}\ = "D"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{AEC1D26D-7278-3BAC-B3E7-C736EB73A552}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{AEC1D26D-7278-3BAC-B3E7-C736EB73A552}\1.0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{AEC1D26D-7278-3BAC-B3E7-C736EB73A552}\1.0\0\win32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{E0FC924A-A7AD-3592-86DD-969A7E9F6DCA}\ = "IDOMPeek"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\D\ = "D"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4FB0DC35-54F4-3B4C-8358-373EB0A9B1EA}\ProgID\ = "D.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4FB0DC35-54F4-3B4C-8358-373EB0A9B1EA}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4FB0DC35-54F4-3B4C-8358-373EB0A9B1EA}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\D	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\D\CLSID\ = "{4FB0DC35-54F4-3B4C-8358-373EB0A9B1EA}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4FB0DC35-54F4-3B4C-8358-373EB0A9B1EA}\VersionIndependentProgID\ = "D"	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1884 wrote to memory of 2000	1884	regsvr32.exe	28
PID 1884 wrote to memory of 2000	1884	regsvr32.exe	28
PID 1884 wrote to memory of 2000	1884	regsvr32.exe	28
PID 1884 wrote to memory of 2000	1884	regsvr32.exe	28
PID 1884 wrote to memory of 2000	1884	regsvr32.exe	28
PID 1884 wrote to memory of 2000	1884	regsvr32.exe	28
PID 1884 wrote to memory of 2000	1884	regsvr32.exe	28

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\bcbc236f8906cdb5b12e2ae1e557e62906b1c8dca30a6412a4614e65e6bbf513.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1884
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\bcbc236f8906cdb5b12e2ae1e557e62906b1c8dca30a6412a4614e65e6bbf513.dll
  2⤵
  - Sets file execution options in registry
  - Installs/modifies Browser Helper Object
  - Drops file in System32 directory
  - Modifies registry class
  PID:2000

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Browser Extensions

T1176

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1884-54-0x000007FEFC181000-0x000007FEFC183000-memory.dmp

Filesize
8KB

Download
memory/2000-56-0x0000000076941000-0x0000000076943000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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