80977571252775298b2256e3f14435536072f2bf1f52f5ab0441f3699d33e00c

Analysis

max time kernel
41s
max time network
45s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
01/12/2022, 02:27 UTC

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General

Target

80977571252775298b2256e3f14435536072f2bf1f52f5ab0441f3699d33e00c.dll
Size

362KB
MD5

b067e27c0907cf6d8cd7bca654e4774c
SHA1

e5915bed5cb6ca33a6b9108b2844ef455c42657b
SHA256

80977571252775298b2256e3f14435536072f2bf1f52f5ab0441f3699d33e00c
SHA512

c97de7b48f7e261dccc398e747c1c07260f6e888a0aa0e50f8b09fa97095fcbf834d3aa04620404128125c5699c6a1437c41c6a7eb33bc4f02783a3dde93d089
SSDEEP

6144:EWN1M+sD/VDPf+ey0bvtkLA6iwMYZrYN0ntve8CU:EA16DUUvt7/Y2N0nBzCU

Score

6^/10

adware stealer

Malware Config

Signatures

Installs/modifies Browser Helper Object 2 TTPs 2 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}	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}\NoExplorer = "1"	rundll32.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Shared\lib.dll	rundll32.exe

Modifies registry class 7 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}\InprocServer32	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}\InprocServer32\ = "C:\\Program Files (x86)\\Shared\\lib.dll"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}\InprocServer32\ThreadingModel = "Apartment"	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}\TypeLib	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}\TypeLib\ = "{8E3C68CD-F500-4A2A-8CB9-132BB38C3573}"	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}\ = "Browser Helper Object"	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 604 wrote to memory of 1148	604	rundll32.exe	26
PID 604 wrote to memory of 1148	604	rundll32.exe	26
PID 604 wrote to memory of 1148	604	rundll32.exe	26
PID 604 wrote to memory of 1148	604	rundll32.exe	26
PID 604 wrote to memory of 1148	604	rundll32.exe	26
PID 604 wrote to memory of 1148	604	rundll32.exe	26
PID 604 wrote to memory of 1148	604	rundll32.exe	26

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\80977571252775298b2256e3f14435536072f2bf1f52f5ab0441f3699d33e00c.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:604
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\80977571252775298b2256e3f14435536072f2bf1f52f5ab0441f3699d33e00c.dll,#1
  2⤵
  - Installs/modifies Browser Helper Object
  - Drops file in Program Files directory
  - Modifies registry class
  PID:1148

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

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Downloads

memory/1148-55-0x0000000075F81000-0x0000000075F83000-memory.dmp

Filesize
8KB

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