bb82a5bccd5b3cecc1e79e8133323be8a735d2d2fa5f985c0229285db11b525a

Analysis

max time kernel
142s
max time network
108s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
25-12-2023 01:00

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General

Target

1ecf0b19fd1a89c871e349da48e6db2e.dll
Size

633KB
MD5

1ecf0b19fd1a89c871e349da48e6db2e
SHA1

e5360d591bc4aa3be16f68256c6afb0b7c7c3991
SHA256

bb82a5bccd5b3cecc1e79e8133323be8a735d2d2fa5f985c0229285db11b525a
SHA512

dc0b25b65c737b7580e47d492e237f1179c5ad3ed506b0c53be177d8723acd623a33cadaa91915cebc4ce7fc00a555cd322d9c77786280124d6d9ed28af6709b
SSDEEP

12288:1vc66CZwCbAfUSPg4EfQbNfk+kMsv2+yT7SRBaQY:KnCZjAfUa1NxkMsv2+tG

Score

6^/10

adware stealer

Malware Config

Signatures

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\{CC01FC6C-BB9C-8E73-A31F-EA4968A1584F}	regsvr32.exe

Modifies registry class 11 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-BB9C-8E73-A31F-EA4968A1584F}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-BB9C-8E73-A31F-EA4968A1584F}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1ecf0b19fd1a89c871e349da48e6db2e.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\1ecf0b19fd1a89c871e349da48e6db2e.iacsav\Clsid	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-BB9C-8E73-A31F-EA4968A1584F}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-BB9C-8E73-A31F-EA4968A1584F}\ProgID\ = "1ecf0b19fd1a89c871e349da48e6db2e.iacsav"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-BB9C-8E73-A31F-EA4968A1584F}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-BB9C-8E73-A31F-EA4968A1584F}\ = "iacsav"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-BB9C-8E73-A31F-EA4968A1584F}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\1ecf0b19fd1a89c871e349da48e6db2e.iacsav	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\1ecf0b19fd1a89c871e349da48e6db2e.iacsav\ = "iacsav"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\1ecf0b19fd1a89c871e349da48e6db2e.iacsav\Clsid\ = "{CC01FC6C-BB9C-8E73-A31F-EA4968A1584F}"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1792 wrote to memory of 4828	1792	regsvr32.exe	14
PID 1792 wrote to memory of 4828	1792	regsvr32.exe	14
PID 1792 wrote to memory of 4828	1792	regsvr32.exe	14

C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\1ecf0b19fd1a89c871e349da48e6db2e.dll
1⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:4828

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\1ecf0b19fd1a89c871e349da48e6db2e.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1792

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

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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