eac446bbf4f95d4780ab8573d3775f98de6a1efe455b39f087eb16655395df50

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
25-07-2024 13:01

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General

Target

mcieplg.dll
Size

146KB
MD5

4428fa80c5ac5d0c8f764207e651b65e
SHA1

228946e860eb7632ce405685b6b49f9800caa323
SHA256

db51e34a3584db58921646283594acb4cdf7fd54eaadf9f648afa8092db6d0d9
SHA512

4eb7af0e184fb74f514d662e3c55326e7949ddad6612b243871709983a5cff6dd2abf41b7aa96d7d7d6a2ea19802dfea9cf6f61de70307a2704789f3a1de89b5
SSDEEP

3072:PbBzatXdlWWIJpSaJxknC6QteNFKQCdB5pYMl:DBYWWMwCLtIKQCddj

Score

6^/10

adware discovery 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	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{B164E929-A1B6-4A06-B104-2CD0E90A88FF}	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{B164E929-A1B6-4A06-B104-2CD0E90A88FF}\NoExplorer = "1"	regsvr32.exe

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Toolbar	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Toolbar\{0EBBBE48-BAD4-4B4C-8E5A-516ABECAE064} = "McAfee SiteAdvisor"	regsvr32.exe

Modifies registry class 23 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\PROTOCOLS\Handler	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\PROTOCOLS\Handler\sacore\CLSID = "{5513F07E-936B-4E52-9B00-067394E91CC5}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0EBBBE48-BAD4-4B4C-8E5A-516ABECAE064}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B164E929-A1B6-4A06-B104-2CD0E90A88FF}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B164E929-A1B6-4A06-B104-2CD0E90A88FF}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1E2866A1-D239-411E-A35D-3CBC34C84E92}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1E2866A1-D239-411E-A35D-3CBC34C84E92}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0EBBBE48-BAD4-4B4C-8E5A-516ABECAE064}\ = "McAfee SiteAdvisor Toolbar"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0EBBBE48-BAD4-4B4C-8E5A-516ABECAE064}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\mcieplg.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\PROTOCOLS\Handler\sacore	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5513F07E-936B-4E52-9B00-067394E91CC5}\ = "McAfee SACore Protocol Handler"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5513F07E-936B-4E52-9B00-067394E91CC5}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5513F07E-936B-4E52-9B00-067394E91CC5}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\mcieplg.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0EBBBE48-BAD4-4B4C-8E5A-516ABECAE064}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0EBBBE48-BAD4-4B4C-8E5A-516ABECAE064}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B164E929-A1B6-4A06-B104-2CD0E90A88FF}\ = "McAfee SiteAdvisor BHO"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B164E929-A1B6-4A06-B104-2CD0E90A88FF}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1E2866A1-D239-411E-A35D-3CBC34C84E92}\ = "McAfee MimeFilter"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5513F07E-936B-4E52-9B00-067394E91CC5}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B164E929-A1B6-4A06-B104-2CD0E90A88FF}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\mcieplg.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1E2866A1-D239-411E-A35D-3CBC34C84E92}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1E2866A1-D239-411E-A35D-3CBC34C84E92}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\mcieplg.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5513F07E-936B-4E52-9B00-067394E91CC5}	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1488 wrote to memory of 1624	1488	regsvr32.exe	30
PID 1488 wrote to memory of 1624	1488	regsvr32.exe	30
PID 1488 wrote to memory of 1624	1488	regsvr32.exe	30
PID 1488 wrote to memory of 1624	1488	regsvr32.exe	30
PID 1488 wrote to memory of 1624	1488	regsvr32.exe	30
PID 1488 wrote to memory of 1624	1488	regsvr32.exe	30
PID 1488 wrote to memory of 1624	1488	regsvr32.exe	30

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\mcieplg.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1488
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\mcieplg.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - System Location Discovery: System Language Discovery
  - Modifies Internet Explorer settings
  - Modifies registry class
  PID:1624

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

System Location Discovery

T1614

System Language Discovery

T1614.001

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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