339649445959646dc1eb1487ab77d01252a23094400efb22ef38e979fb974d84

Analysis

max time kernel
141s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
14/02/2024, 10:45

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General

Target
9b7831e7a0a23e9f66eb5dd0fcdb11f3.dll
Size 32KB
Sample240214-mtckzagb9z
SHA256 339649445959646dc1eb1487ab77d01252a23094400efb22ef38e979fb974d84
MD5 9b7831e7a0a23e9f66eb5dd0fcdb11f3
SHA1 e486cc8f9def174339d41dc54eecb3b5b66d7fc4
SHA512 05b4f7602f2a87680030dda582ee449f66b4acdcaee9063ae9c8ce60922afdcde80a7687cfd51d2299bbdcd51197b5dfa1af7fccf36a0420af540a4adb723cde
SSDEEP 384:KNmypWOrKjiyzaF6uZdUYU3mOYzXjgSa6q//NaSgsbtRlEj4fK49XHpUEX4dPqA6:2mYWaKjIF6Q2WOr261abGHW3dCA6CCL
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

adware stealer upx

Malware Config

Signatures

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/1948-0-0x0000000010000000-0x0000000010019000-memory.dmp	upx

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\{DE7C3CF0-4B15-11D1-ABED-709549C10000}	regsvr32.exe

Modifies registry class 42 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{DE7C3CEF-4B15-11D1-ABED-709549C10000}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DE7C3CEF-4B15-11D1-ABED-709549C10000}\ = "IIEHlprObj"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DE7C3CF0-4B15-11D1-ABED-709549C10000}\Programmable	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DE7C3CE2-4B15-11D1-ABED-709549C10000}\1.0\FLAGS\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DE7C3CE2-4B15-11D1-ABED-709549C10000}\1.0\0\win32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\ = "IEHlprObj Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj\ = "IEHlprObj Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DE7C3CE2-4B15-11D1-ABED-709549C10000}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{DE7C3CEF-4B15-11D1-ABED-709549C10000}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{DE7C3CEF-4B15-11D1-ABED-709549C10000}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj\CurVer	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DE7C3CF0-4B15-11D1-ABED-709549C10000}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DE7C3CF0-4B15-11D1-ABED-709549C10000}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\9b7831e7a0a23e9f66eb5dd0fcdb11f3.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DE7C3CE2-4B15-11D1-ABED-709549C10000}\1.0\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DE7C3CE2-4B15-11D1-ABED-709549C10000}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DE7C3CEF-4B15-11D1-ABED-709549C10000}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DE7C3CEF-4B15-11D1-ABED-709549C10000}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DE7C3CEF-4B15-11D1-ABED-709549C10000}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\CLSID\ = "{DE7C3CF0-4B15-11D1-ABED-709549C10000}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DE7C3CE2-4B15-11D1-ABED-709549C10000}\1.0\ = "IEHelper 1.0 Type Library"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DE7C3CE2-4B15-11D1-ABED-709549C10000}\1.0\FLAGS	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DE7C3CE2-4B15-11D1-ABED-709549C10000}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\9b7831e7a0a23e9f66eb5dd0fcdb11f3.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{DE7C3CEF-4B15-11D1-ABED-709549C10000}\TypeLib\ = "{DE7C3CE2-4B15-11D1-ABED-709549C10000}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DE7C3CF0-4B15-11D1-ABED-709549C10000}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DE7C3CF0-4B15-11D1-ABED-709549C10000}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{DE7C3CEF-4B15-11D1-ABED-709549C10000}\ = "IIEHlprObj"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DE7C3CF0-4B15-11D1-ABED-709549C10000}\VersionIndependentProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DE7C3CF0-4B15-11D1-ABED-709549C10000}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DE7C3CE2-4B15-11D1-ABED-709549C10000}\1.0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DE7C3CEF-4B15-11D1-ABED-709549C10000}\TypeLib\ = "{DE7C3CE2-4B15-11D1-ABED-709549C10000}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj\CurVer\ = "IEHlprObj.IEHlprObj.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DE7C3CF0-4B15-11D1-ABED-709549C10000}\VersionIndependentProgID\ = "IEHlprObj.IEHlprObj"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{DE7C3CEF-4B15-11D1-ABED-709549C10000}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{DE7C3CEF-4B15-11D1-ABED-709549C10000}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DE7C3CF0-4B15-11D1-ABED-709549C10000}\ = "IEHlprObj Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DE7C3CF0-4B15-11D1-ABED-709549C10000}\ProgID\ = "IEHlprObj.IEHlprObj.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DE7C3CE2-4B15-11D1-ABED-709549C10000}\1.0\0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DE7C3CEF-4B15-11D1-ABED-709549C10000}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DE7C3CEF-4B15-11D1-ABED-709549C10000}\TypeLib\Version = "1.0"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1628 wrote to memory of 1948	1628	regsvr32.exe	84
PID 1628 wrote to memory of 1948	1628	regsvr32.exe	84
PID 1628 wrote to memory of 1948	1628	regsvr32.exe	84

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\9b7831e7a0a23e9f66eb5dd0fcdb11f3.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1628
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\9b7831e7a0a23e9f66eb5dd0fcdb11f3.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:1948

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

Replay Monitor

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Downloads

memory/1948-0-0x0000000010000000-0x0000000010019000-memory.dmp

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