ef48df8080be426e9fec5ebbdec7f9a553f47aab27e05afd8a2d76842d7bb6b2

Analysis

max time kernel
118s
max time network
123s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
31-12-2023 02:44

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General

Target

24fc344f1ce4bb18616d93454ff773e0.dll
Size

409KB
MD5

24fc344f1ce4bb18616d93454ff773e0
SHA1

55f47545ab62a43049eae2fa9aa6e8604c603867
SHA256

ef48df8080be426e9fec5ebbdec7f9a553f47aab27e05afd8a2d76842d7bb6b2
SHA512

970a1ec8aa77680ef1dc7e4c70e93ebcb9a827f773110327b0f0e59b677bb6d866b0aa54f115e8e2dc7e0aefa1e8194a40a69ead574a8844a0aaa266f67f3626
SSDEEP

6144:873UkUpqsoJhZzbRNn3hbWE0n1hyCpM9lDMZl1ZB7JU5pckodfGBmubGrHDNY8sd:yTUpqfBsEEACpM9lQ3BFUbcvoqny8y7

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\{3DE538FA-DDB6-40BB-ABFD-FE66CF579654}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{3DE538FA-DDB6-40BB-ABFD-FE66CF579654}\	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{3DE538FA-DDB6-40BB-ABFD-FE66CF579654}\NoExplorer = "1"	regsvr32.exe

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Internet Explorer\Main	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Internet Explorer\Main\Enable Browser Extensions = "yes"	regsvr32.exe

Modifies registry class 6 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3DE538FA-DDB6-40BB-ABFD-FE66CF579654}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3DE538FA-DDB6-40BB-ABFD-FE66CF579654}\ = "Mini-Search"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3DE538FA-DDB6-40BB-ABFD-FE66CF579654}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3DE538FA-DDB6-40BB-ABFD-FE66CF579654}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\24fc344f1ce4bb18616d93454ff773e0.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3DE538FA-DDB6-40BB-ABFD-FE66CF579654}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3DE538FA-DDB6-40BB-ABFD-FE66CF579654}\InProcServer32	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2968 wrote to memory of 3052	2968	regsvr32.exe	28
PID 2968 wrote to memory of 3052	2968	regsvr32.exe	28
PID 2968 wrote to memory of 3052	2968	regsvr32.exe	28
PID 2968 wrote to memory of 3052	2968	regsvr32.exe	28
PID 2968 wrote to memory of 3052	2968	regsvr32.exe	28
PID 2968 wrote to memory of 3052	2968	regsvr32.exe	28
PID 2968 wrote to memory of 3052	2968	regsvr32.exe	28

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\24fc344f1ce4bb18616d93454ff773e0.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2968
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\24fc344f1ce4bb18616d93454ff773e0.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies Internet Explorer settings
  - Modifies registry class
  PID:3052

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

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Downloads

memory/3052-0-0x0000000001F70000-0x00000000020C5000-memory.dmp

Filesize
1.3MB

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memory/3052-1-0x0000000000130000-0x0000000000132000-memory.dmp

Filesize
8KB

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads