1750863eaa7e4323444aa3495d32ac31d2bba61577aa682c1e537cc7b4408cef

Analysis

max time kernel
145s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
05/02/2024, 08:18

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General

Target
917da64e70170b0d99090934572040d7.dll
Size 276KB
Sample240205-j7hglabda7
SHA256 1750863eaa7e4323444aa3495d32ac31d2bba61577aa682c1e537cc7b4408cef
MD5 917da64e70170b0d99090934572040d7
SHA1 3bc77ad3162101dd8b07d0ad71b8f73830d6bbf6
SHA512 3fee5e7625c7918319a4a83c0a450a62d20960ddb68dc616eba8c18eee8f10ad34269e9c3af1ee0d78ea9bb9eeb09ecd77aa812317781aac7901257ffc4b6bf1
SSDEEP 6144:r6A9vy4cBmyAAVjW10Z98OE8Z+5kQpKYJvP:r6A9SBmyAAVCyr8OE8Z+5kMKY
MD5 SHA1 SHA512 SSDEEP

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\{F09AA833-093B-4018-866A-2968357821B3}	regsvr32.exe

Modifies registry class 50 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{16618744-ED4A-4593-BA2E-5278404CFDA3}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{16618744-ED4A-4593-BA2E-5278404CFDA3}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{D09A7EC3-F941-49B0-AA84-44E40AE577AF}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\917da64e70170b0d99090934572040d7.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9B696F7A-A42C-4EF9-BCE8-017BAC2BA56B}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9B696F7A-A42C-4EF9-BCE8-017BAC2BA56B}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F09AA833-093B-4018-866A-2968357821B3}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{16618744-ED4A-4593-BA2E-5278404CFDA3}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{16618744-ED4A-4593-BA2E-5278404CFDA3}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{D09A7EC3-F941-49B0-AA84-44E40AE577AF}\1.0\0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{D09A7EC3-F941-49B0-AA84-44E40AE577AF}\1.0\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{16618744-ED4A-4593-BA2E-5278404CFDA3}\TypeLib\ = "{D09A7EC3-F941-49B0-AA84-44E40AE577AF}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9B696F7A-A42C-4EF9-BCE8-017BAC2BA56B}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9B696F7A-A42C-4EF9-BCE8-017BAC2BA56B}\TypeLib\ = "{D09A7EC3-F941-49B0-AA84-44E40AE577AF}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{D09A7EC3-F941-49B0-AA84-44E40AE577AF}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{D09A7EC3-F941-49B0-AA84-44E40AE577AF}\1.0\FLAGS	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{16618744-ED4A-4593-BA2E-5278404CFDA3}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9B696F7A-A42C-4EF9-BCE8-017BAC2BA56B}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9B696F7A-A42C-4EF9-BCE8-017BAC2BA56B}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F09AA833-093B-4018-866A-2968357821B3}\ProgID\ = "QXK.Rhythm"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{16618744-ED4A-4593-BA2E-5278404CFDA3}\ProxyStubClsid32\ = "{00020420-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9B696F7A-A42C-4EF9-BCE8-017BAC2BA56B}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F09AA833-093B-4018-866A-2968357821B3}\VersionIndependentProgID\ = "QXK.Rhythm"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{D09A7EC3-F941-49B0-AA84-44E40AE577AF}\1.0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{D09A7EC3-F941-49B0-AA84-44E40AE577AF}\1.0\0\win32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{16618744-ED4A-4593-BA2E-5278404CFDA3}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{D09A7EC3-F941-49B0-AA84-44E40AE577AF}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9B696F7A-A42C-4EF9-BCE8-017BAC2BA56B}\ = "Iamlb"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F09AA833-093B-4018-866A-2968357821B3}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9B696F7A-A42C-4EF9-BCE8-017BAC2BA56B}\TypeLib\ = "{D09A7EC3-F941-49B0-AA84-44E40AE577AF}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F09AA833-093B-4018-866A-2968357821B3}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{16618744-ED4A-4593-BA2E-5278404CFDA3}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9B696F7A-A42C-4EF9-BCE8-017BAC2BA56B}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9B696F7A-A42C-4EF9-BCE8-017BAC2BA56B}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F09AA833-093B-4018-866A-2968357821B3}\TypeLib\ = "{D09A7EC3-F941-49B0-AA84-44E40AE577AF}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{16618744-ED4A-4593-BA2E-5278404CFDA3}\ = "_IamlbEvents"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{16618744-ED4A-4593-BA2E-5278404CFDA3}\ = "_IamlbEvents"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F09AA833-093B-4018-866A-2968357821B3}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{D09A7EC3-F941-49B0-AA84-44E40AE577AF}\1.0\FLAGS\ = "0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{D09A7EC3-F941-49B0-AA84-44E40AE577AF}\1.0\ = "amlb TL"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{16618744-ED4A-4593-BA2E-5278404CFDA3}\TypeLib\ = "{D09A7EC3-F941-49B0-AA84-44E40AE577AF}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{16618744-ED4A-4593-BA2E-5278404CFDA3}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9B696F7A-A42C-4EF9-BCE8-017BAC2BA56B}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{16618744-ED4A-4593-BA2E-5278404CFDA3}\ProxyStubClsid32\ = "{00020420-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F09AA833-093B-4018-866A-2968357821B3}\VersionIndependentProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F09AA833-093B-4018-866A-2968357821B3}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\917da64e70170b0d99090934572040d7.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F09AA833-093B-4018-866A-2968357821B3}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9B696F7A-A42C-4EF9-BCE8-017BAC2BA56B}\ = "Iamlb"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9B696F7A-A42C-4EF9-BCE8-017BAC2BA56B}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F09AA833-093B-4018-866A-2968357821B3}\ = "QXK Rhythm"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F09AA833-093B-4018-866A-2968357821B3}\Programmable	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 5000 wrote to memory of 400	5000	regsvr32.exe	85
PID 5000 wrote to memory of 400	5000	regsvr32.exe	85
PID 5000 wrote to memory of 400	5000	regsvr32.exe	85

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\917da64e70170b0d99090934572040d7.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:5000
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\917da64e70170b0d99090934572040d7.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:400

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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