71f24251844b9e59c079cf6cc05c7ff82f0a87da4e2b1b2064f401b09169d8bd

Analysis

max time kernel
118s
max time network
121s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
03/02/2024, 03:30

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General

Target
8b48d71dd8ec9ab649c9286d63ec80d5.dll
Size 288KB
Sample240203-d2hmhsachn
SHA256 71f24251844b9e59c079cf6cc05c7ff82f0a87da4e2b1b2064f401b09169d8bd
MD5 8b48d71dd8ec9ab649c9286d63ec80d5
SHA1 330e6a01f8332cc6edc6165f26572da4d80a40f3
SHA512 5d6258f0271410c4977df1ec8f42c745cf23e621cc7ddd1672379ce051c6a7b80d9009b54302992a24031b03469f9460f6faf16c5f531d1db465345bb7360267
SSDEEP 6144:ZYHx2E4u5HVHqmb1Ij9bVbutvrOirgeh+s:ZwbnKdpJbuBjr1
MD5 SHA1 SHA512 SSDEEP

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}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8E3C68CD-F500-4A2A-8CB9-132BB38C3573}\1.0\0\win32	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\AppID\U+)+A0E1054B-01EE-4D57-A059-4D99F339709FU+)-	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\TypeLib\{8E3C68CD-F500-4A2A-8CB9-132BB38C3573}\1.0\ = "mainLib"	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\main.BHO\CurVer	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8E3C68CD-F500-4A2A-8CB9-132BB38C3573}\1.0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{986A8AC1-AB4D-4F41-9068-4B01C0197867}\ = "IBHO"	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\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}\AppID = "U+)+A0\x1c"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{986A8AC1-AB4D-4F41-9068-4B01C0197867}\ProxyStubClsid32	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.1\ = "Browser Helper Object"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{986A8AC1-AB4D-4F41-9068-4B01C0197867}\TypeLib\ = "{8E3C68CD-F500-4A2A-8CB9-132BB38C3573}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\U+)+A0E1054B-01EE-4D57-A059-4D99F339709FU+)-\ = "Browser Helper Object"	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\Interface\{986A8AC1-AB4D-4F41-9068-4B01C0197867}\TypeLib	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\AppID\main.DLL	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\main.BHO.1\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}\Programmable	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\AppID\main.DLL\AppID = "U+)+A0E1054B-01EE-4D57-A059-4D99F339709FU+)-"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\main.BHO.1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\main.BHO.1\CLSID\ = "{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\main.BHO\CLSID	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\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\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\8b48d71dd8ec9ab649c9286d63ec80d5.dll"	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\Interface\{986A8AC1-AB4D-4F41-9068-4B01C0197867}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{986A8AC1-AB4D-4F41-9068-4B01C0197867}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{986A8AC1-AB4D-4F41-9068-4B01C0197867}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	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\CLSID\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\8b48d71dd8ec9ab649c9286d63ec80d5.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}\TypeLib\ = "{8E3C68CD-F500-4A2A-8CB9-132BB38C3573}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8E3C68CD-F500-4A2A-8CB9-132BB38C3573}\1.0\0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\main.BHO\CurVer\ = "main.BHO.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}\ProgID\ = "main.BHO.1"	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\main.BHO	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}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{986A8AC1-AB4D-4F41-9068-4B01C0197867}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8E3C68CD-F500-4A2A-8CB9-132BB38C3573}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8E3C68CD-F500-4A2A-8CB9-132BB38C3573}\1.0\FLAGS	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2392 wrote to memory of 2180	2392	regsvr32.exe	28
PID 2392 wrote to memory of 2180	2392	regsvr32.exe	28
PID 2392 wrote to memory of 2180	2392	regsvr32.exe	28
PID 2392 wrote to memory of 2180	2392	regsvr32.exe	28
PID 2392 wrote to memory of 2180	2392	regsvr32.exe	28
PID 2392 wrote to memory of 2180	2392	regsvr32.exe	28
PID 2392 wrote to memory of 2180	2392	regsvr32.exe	28

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\8b48d71dd8ec9ab649c9286d63ec80d5.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2392
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\8b48d71dd8ec9ab649c9286d63ec80d5.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:2180

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

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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