04b47439cc669bbbdc1144b409cf4eb00fac638b3bda1163ee1329a754cb47eb

Analysis

max time kernel
121s
max time network
121s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
11/01/2024, 08:12

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General

Target

52ffc1736ae2a11a46f37b490a7da090.dll
Size

444KB
MD5

52ffc1736ae2a11a46f37b490a7da090
SHA1

57a44f28117cc1c9ceefcdd7b078aa24a12f4b52
SHA256

04b47439cc669bbbdc1144b409cf4eb00fac638b3bda1163ee1329a754cb47eb
SHA512

e7e4b979590768c4a146a053b5af2fac5b9c45d093d91998da0279eb946a96e57a0e5cb14368fa76bc9d95e58f06a62e4e6b7ec49ea27bfbb9b94d6f99e5abec
SSDEEP

12288:G+d5yvE60TpBkHEP6ho+Qn0UMuu62BM7dJHD5qh:GyyWTDkHEP66+Y6u7xV

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\{49D28F17-5837-4A12-8E2B-C246CA55F44B}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{49D28F17-5837-4A12-8E2B-C246CA55F44B}\	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{49D28F17-5837-4A12-8E2B-C246CA55F44B}\NoExplorer = "1"	regsvr32.exe

Modifies Internet Explorer settings 1 TTPs 5 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Internet Explorer\Main	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Internet Explorer\Main\Enable Browser Extensions = "yes"	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_LOCALMACHINE_LOCKDOWN	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Internet Explorer\Main\FeatureControl	regsvr32.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_LOCALMACHINE_LOCKDOWN\iexplore.exe = "0"	regsvr32.exe

Modifies registry class 6 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{49D28F17-5837-4A12-8E2B-C246CA55F44B}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{49D28F17-5837-4A12-8E2B-C246CA55F44B}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\52ffc1736ae2a11a46f37b490a7da090.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{49D28F17-5837-4A12-8E2B-C246CA55F44B}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{49D28F17-5837-4A12-8E2B-C246CA55F44B}\InProcServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{49D28F17-5837-4A12-8E2B-C246CA55F44B}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{49D28F17-5837-4A12-8E2B-C246CA55F44B}\ = "¼\u00adÄ¡¿Â"	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2792 wrote to memory of 2724	2792	regsvr32.exe	16
PID 2792 wrote to memory of 2724	2792	regsvr32.exe	16
PID 2792 wrote to memory of 2724	2792	regsvr32.exe	16
PID 2792 wrote to memory of 2724	2792	regsvr32.exe	16
PID 2792 wrote to memory of 2724	2792	regsvr32.exe	16
PID 2792 wrote to memory of 2724	2792	regsvr32.exe	16
PID 2792 wrote to memory of 2724	2792	regsvr32.exe	16

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\52ffc1736ae2a11a46f37b490a7da090.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2792
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\52ffc1736ae2a11a46f37b490a7da090.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies Internet Explorer settings
  - Modifies registry class
  PID:2724

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/2724-1-0x00000000001C0000-0x00000000001C2000-memory.dmp

Filesize
8KB

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memory/2724-0-0x0000000002250000-0x00000000023BE000-memory.dmp

Filesize
1.4MB

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Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads