160ab192df99e5bab537978f6daf7559567ed50fa366cf743d59c24e9a5312f0

Analysis

max time kernel
119s
max time network
123s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
18/01/2024, 11:14

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General

Target

653cc285f2f879a133d6e0b779ca8cd4.dll
Size

44KB
MD5

653cc285f2f879a133d6e0b779ca8cd4
SHA1

3da58ae7f70f6f276ab6d9abf2c2c2f77649fa39
SHA256

160ab192df99e5bab537978f6daf7559567ed50fa366cf743d59c24e9a5312f0
SHA512

02ca8e6854eb0154998dae1147097d5489a2176189414c3ade571c752bad38b0925140a67ac68e2453de5e5e8c2bc7ac957184be8db6db792f8292b82db5937f
SSDEEP

768:p2fqPVUjHtBLCGIj3Zbv51DLjXhDaXXWM0ibdex78doG1uk78A33Icg:E4itYZJ7jXkHWMoxeosP7f33Icg

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\{8CF456C5-BAC8-441C-8C9F-861BFFDC0721}	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{8CF456C5-BAC8-441C-8C9F-861BFFDC0721}\NoExplorer = "1"	regsvr32.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8CF456C5-BAC8-441C-8C9F-861BFFDC0721}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8CF456C5-BAC8-441C-8C9F-861BFFDC0721}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8CF456C5-BAC8-441C-8C9F-861BFFDC0721}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\653cc285f2f879a133d6e0b779ca8cd4.dll"	regsvr32.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2460 wrote to memory of 2868	2460	regsvr32.exe	28
PID 2460 wrote to memory of 2868	2460	regsvr32.exe	28
PID 2460 wrote to memory of 2868	2460	regsvr32.exe	28
PID 2460 wrote to memory of 2868	2460	regsvr32.exe	28
PID 2460 wrote to memory of 2868	2460	regsvr32.exe	28
PID 2460 wrote to memory of 2868	2460	regsvr32.exe	28
PID 2460 wrote to memory of 2868	2460	regsvr32.exe	28
PID 2868 wrote to memory of 1684	2868	regsvr32.exe	29
PID 2868 wrote to memory of 1684	2868	regsvr32.exe	29
PID 2868 wrote to memory of 1684	2868	regsvr32.exe	29
PID 2868 wrote to memory of 1684	2868	regsvr32.exe	29
PID 2868 wrote to memory of 1684	2868	regsvr32.exe	29
PID 2868 wrote to memory of 1684	2868	regsvr32.exe	29
PID 2868 wrote to memory of 1684	2868	regsvr32.exe	29

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\653cc285f2f879a133d6e0b779ca8cd4.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2460
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\653cc285f2f879a133d6e0b779ca8cd4.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2868
- - C:\Windows\SysWOW64\rundll32.exe
    C:\Windows\system32\rundll32.exe "C:\Users\Admin\AppData\Local\Temp\653cc285f2f879a133d6e0b779ca8cd4.dll",DllGetObjectType
    3⤵
    PID:1684

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

Windows 7 deprecation

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