c2c88b84e38a0944cda57eff42fcd4052657da05048bb1132a07beca63ab6585

Analysis

max time kernel
150s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
09/01/2024, 04:54

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General

Target

4d62528df3771ba56e45a2548f3b19a4.dll
Size

128KB
MD5

4d62528df3771ba56e45a2548f3b19a4
SHA1

8aa1fe16fc7bec499fc5eb5ed745b51205737d85
SHA256

c2c88b84e38a0944cda57eff42fcd4052657da05048bb1132a07beca63ab6585
SHA512

823b0b5bb1bec017a5c6f1b97da7d3559f5a6234089c132118b9655b0b9ab6fb1064661d43f0708d26c3d5ea52acabcf7f8641f9dd68d4872a2af96676c24aca
SSDEEP

1536:bEwsthLuY3vJYUEPMVWwAenmB7IQPkcqR6IpL+uYCGYFhWOJFpwO+Xo0bJTWr+9i:Fs3lhLbDAbNH0RBMCGYjEO5wJ6KYup6

Score

6^/10

adware persistence stealer

Malware Config

Signatures

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\whedihan = "regsvr32 /u \"C:\\ProgramData\\whedihan.dll\""	regsvr32.exe

Installs/modifies Browser Helper Object 2 TTPs 1 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\{31600B7C-8096-D3BF-F144-03FEB81617E2}	regsvr32.exe

Modifies registry class 7 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{31600B7C-8096-D3BF-F144-03FEB81617E2}\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\{31600B7C-8096-D3BF-F144-03FEB81617E2}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{31600B7C-8096-D3BF-F144-03FEB81617E2}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\4d62528df3771ba56e45a2548f3b19a4.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{31600B7C-8096-D3BF-F144-03FEB81617E2}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{31600B7C-8096-D3BF-F144-03FEB81617E2}\InprocServer32\t = "1704776061"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4240 wrote to memory of 1240	4240	regsvr32.exe	88
PID 4240 wrote to memory of 1240	4240	regsvr32.exe	88
PID 4240 wrote to memory of 1240	4240	regsvr32.exe	88

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\4d62528df3771ba56e45a2548f3b19a4.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:4240
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\4d62528df3771ba56e45a2548f3b19a4.dll
  2⤵
  - Adds Run key to start application
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:1240

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Browser Extensions

T1176

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Windows 7 deprecation

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads