b37a34886b55370824e1bb9e879e8c0cbf44859d9a818e7d7709c7c6cd6fd0e6

Analysis

max time kernel
41s
max time network
46s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
07-11-2022 11:01

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General

Target

b37a34886b55370824e1bb9e879e8c0cbf44859d9a818e7d7709c7c6cd6fd0e6.dll
Size

288KB
MD5

0e16e4ba9fb0bcd1c357c4e42bb76070
SHA1

77ce0e6e655e11666f9a15b0e6d939c6ff015cb4
SHA256

b37a34886b55370824e1bb9e879e8c0cbf44859d9a818e7d7709c7c6cd6fd0e6
SHA512

1355f34dc118bb9ba12f3cc0f143dccd9b9cbf69916b8834a5c06eccb20a248757af7098b634624246436e2146a224c91f1dd4471f3b5aeef7f1efb2ba5c01ad
SSDEEP

3072:A5/EKvLDaUnI5PGN6zt6MqV3xlF74EfgnGpG/pv3hLALRQKsLfaYtB2IGr0AlI7:Avmj5uYzt6b73sCgnmG/93hiRCykIFI7

Score

6^/10

adware stealer

Malware Config

Signatures

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\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}\	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}\NoExplorer = "1"	regsvr32.exe

Modifies registry class 51 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{986A8AC1-AB4D-4F41-9068-4B01C0197867}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}\TypeLib\ = "{8E3C68CD-F500-4A2A-8CB9-132BB38C3573}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8E3C68CD-F500-4A2A-8CB9-132BB38C3573}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{986A8AC1-AB4D-4F41-9068-4B01C0197867}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}\AppID = "U+)+A0E1 "	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8E3C68CD-F500-4A2A-8CB9-132BB38C3573}\1.0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8E3C68CD-F500-4A2A-8CB9-132BB38C3573}\1.0\0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{986A8AC1-AB4D-4F41-9068-4B01C0197867}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{986A8AC1-AB4D-4F41-9068-4B01C0197867}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\U+)+A0E1054B-01EE-4D57-A059-4D99F339709FU+)-	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\main.DLL\AppID = "U+)+A0E1054B-01EE-4D57-A059-4D99F339709FU+)-"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\main.BHO\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}\ = "Browser Helper Object"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\b37a34886b55370824e1bb9e879e8c0cbf44859d9a818e7d7709c7c6cd6fd0e6.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{986A8AC1-AB4D-4F41-9068-4B01C0197867}\ = "IBHO"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{986A8AC1-AB4D-4F41-9068-4B01C0197867}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\main.BHO.1\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\main.BHO\ = "Browser Helper Object"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{986A8AC1-AB4D-4F41-9068-4B01C0197867}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{986A8AC1-AB4D-4F41-9068-4B01C0197867}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{986A8AC1-AB4D-4F41-9068-4B01C0197867}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{986A8AC1-AB4D-4F41-9068-4B01C0197867}\ = "IBHO"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\U+)+A0E1054B-01EE-4D57-A059-4D99F339709FU+)-\ = "Browser Helper Object"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\main.BHO.1	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8E3C68CD-F500-4A2A-8CB9-132BB38C3573}\1.0\0\win32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8E3C68CD-F500-4A2A-8CB9-132BB38C3573}\1.0\ = "mainLib"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8E3C68CD-F500-4A2A-8CB9-132BB38C3573}\1.0\FLAGS	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8E3C68CD-F500-4A2A-8CB9-132BB38C3573}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\b37a34886b55370824e1bb9e879e8c0cbf44859d9a818e7d7709c7c6cd6fd0e6.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\main.BHO\CLSID\ = "{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\main.BHO\CurVer\ = "main.BHO.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}\Programmable	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{986A8AC1-AB4D-4F41-9068-4B01C0197867}\TypeLib\ = "{8E3C68CD-F500-4A2A-8CB9-132BB38C3573}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8E3C68CD-F500-4A2A-8CB9-132BB38C3573}\1.0\FLAGS\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8E3C68CD-F500-4A2A-8CB9-132BB38C3573}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{986A8AC1-AB4D-4F41-9068-4B01C0197867}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\main.BHO\CurVer	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8E3C68CD-F500-4A2A-8CB9-132BB38C3573}\1.0\HELPDIR	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{986A8AC1-AB4D-4F41-9068-4B01C0197867}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\main.BHO	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}\ProgID\ = "main.BHO.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}\VersionIndependentProgID\ = "main.BHO"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{986A8AC1-AB4D-4F41-9068-4B01C0197867}\TypeLib\ = "{8E3C68CD-F500-4A2A-8CB9-132BB38C3573}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\main.DLL	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\main.BHO.1\ = "Browser Helper Object"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\main.BHO.1\CLSID\ = "{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}"	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1404 wrote to memory of 788	1404	regsvr32.exe	28
PID 1404 wrote to memory of 788	1404	regsvr32.exe	28
PID 1404 wrote to memory of 788	1404	regsvr32.exe	28
PID 1404 wrote to memory of 788	1404	regsvr32.exe	28
PID 1404 wrote to memory of 788	1404	regsvr32.exe	28
PID 1404 wrote to memory of 788	1404	regsvr32.exe	28
PID 1404 wrote to memory of 788	1404	regsvr32.exe	28

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\b37a34886b55370824e1bb9e879e8c0cbf44859d9a818e7d7709c7c6cd6fd0e6.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1404
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\b37a34886b55370824e1bb9e879e8c0cbf44859d9a818e7d7709c7c6cd6fd0e6.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:788

Network

MITRE ATT&CK Enterprise v6

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/788-55-0x0000000000000000-mapping.dmp

Download
memory/788-56-0x0000000074F01000-0x0000000074F03000-memory.dmp

Filesize
8KB

Download
memory/1404-54-0x000007FEFB8A1000-0x000007FEFB8A3000-memory.dmp

Filesize
8KB

Download