a67841ce6c21b1e48913310654d1501e691052a92369dfcefa1f24690e834ed4

Analysis

max time kernel
147s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
19/06/2024, 19:39

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General

Target

PP2008/plugins/DownAgent.dll
Size

52KB
MD5

dba6de61aef1903513bb711264df9b53
SHA1

01a4d6d3c2c4cfd3e456ba3753a1727c198ec38e
SHA256

381e39b52fc17e7995f26b70e7f10c0b98f7caeb4c3c69797e34667b49ecd448
SHA512

6e074f08e2c84ee82e9306fe2721ad6cdc155e31c33e74de84f4ecd631a43873ea6c0ac955a7653d140e2ba21d4f786e9f2dc316aaf11a8858397a37b64a9374
SSDEEP

768:M344ZYymNbC9JlzBc2rIMiNVGdYyIps2HMLE5:M34UgbCFBFsMiVyYyUMLm

Score

1^/10

Malware Config

Signatures

Modifies Internet Explorer settings 1 TTPs 6 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\MenuExt\&Ê¹ÓÃPP2008ÏÂÔØÈ«²¿Á¬½Ó\ = "res://C:\\Users\\Admin\\AppData\\Local\\Temp\\PP2008\\plugins\\DownAgent.dll/AllUrls.html"	regsvr32.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\MenuExt\&Ê¹ÓÃPP2008ÏÂÔØÈ«²¿Á¬½Ó\Contexts = "243"	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\MenuExt\&Ê¹ÓÃPP2008ÏÂÔØ	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\MenuExt\&Ê¹ÓÃPP2008ÏÂÔØ\ = "res://C:\\Users\\Admin\\AppData\\Local\\Temp\\PP2008\\plugins\\DownAgent.dll/SingleUrl.html"	regsvr32.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\MenuExt\&Ê¹ÓÃPP2008ÏÂÔØ\Contexts = "34"	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\MenuExt\&Ê¹ÓÃPP2008ÏÂÔØÈ«²¿Á¬½Ó	regsvr32.exe

Modifies registry class 51 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E1D93961-3465-4BC5-A575-59BCC32C2C8D}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{01375C76-74CB-4566-839C-9F2CCEC5C43B}\TypeLib\ = "{B7239B63-957B-4F26-9FC4-2483D08F6842}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\DownAgent.SkDownAgent\CLSID\ = "{E1D93961-3465-4BC5-A575-59BCC32C2C8D}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E1D93961-3465-4BC5-A575-59BCC32C2C8D}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E1D93961-3465-4BC5-A575-59BCC32C2C8D}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B7239B63-957B-4F26-9FC4-2483D08F6842}\1.0\FLAGS\ = "0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{01375C76-74CB-4566-839C-9F2CCEC5C43B}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E1D93961-3465-4BC5-A575-59BCC32C2C8D}\ProgID\ = "DownAgent.SkDownAgent.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E1D93961-3465-4BC5-A575-59BCC32C2C8D}\AppID = "{31F92907-4B7F-438C-9861-925979028A21}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E1D93961-3465-4BC5-A575-59BCC32C2C8D}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{01375C76-74CB-4566-839C-9F2CCEC5C43B}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{01375C76-74CB-4566-839C-9F2CCEC5C43B}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E1D93961-3465-4BC5-A575-59BCC32C2C8D}\TypeLib\ = "{B7239B63-957B-4F26-9FC4-2483D08F6842}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B7239B63-957B-4F26-9FC4-2483D08F6842}\1.0\FLAGS	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{31F92907-4B7F-438C-9861-925979028A21}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{31F92907-4B7F-438C-9861-925979028A21}\ = "DownAgent"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E1D93961-3465-4BC5-A575-59BCC32C2C8D}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\DownAgent.SkDownAgent\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\DownAgent.SkDownAgent\CurVer	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B7239B63-957B-4F26-9FC4-2483D08F6842}\1.0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B7239B63-957B-4F26-9FC4-2483D08F6842}\1.0\ = "DownAgent 1.0 ÀàÐÍ¿â"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{01375C76-74CB-4566-839C-9F2CCEC5C43B}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{01375C76-74CB-4566-839C-9F2CCEC5C43B}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\DownAgent.SkDownAgent.1\CLSID\ = "{E1D93961-3465-4BC5-A575-59BCC32C2C8D}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E1D93961-3465-4BC5-A575-59BCC32C2C8D}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\PP2008\\plugins\\DownAgent.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E1D93961-3465-4BC5-A575-59BCC32C2C8D}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B7239B63-957B-4F26-9FC4-2483D08F6842}\1.0\0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B7239B63-957B-4F26-9FC4-2483D08F6842}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\PP2008\\plugins\\DownAgent.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{01375C76-74CB-4566-839C-9F2CCEC5C43B}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\DownAgent.SkDownAgent.1	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E1D93961-3465-4BC5-A575-59BCC32C2C8D}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B7239B63-957B-4F26-9FC4-2483D08F6842}\1.0\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{01375C76-74CB-4566-839C-9F2CCEC5C43B}\TypeLib\ = "{B7239B63-957B-4F26-9FC4-2483D08F6842}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{01375C76-74CB-4566-839C-9F2CCEC5C43B}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\DownAgent.DLL	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\DownAgent.SkDownAgent\CurVer\ = "DownAgent.SkDownAgent.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E1D93961-3465-4BC5-A575-59BCC32C2C8D}\ = "SkDownAgent Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{01375C76-74CB-4566-839C-9F2CCEC5C43B}\ = "ISkDownAgent"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{01375C76-74CB-4566-839C-9F2CCEC5C43B}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\DownAgent.SkDownAgent.1\ = "SkDownAgent Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\DownAgent.SkDownAgent.1\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\DownAgent.SkDownAgent	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\DownAgent.SkDownAgent\ = "SkDownAgent Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{01375C76-74CB-4566-839C-9F2CCEC5C43B}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{01375C76-74CB-4566-839C-9F2CCEC5C43B}\ = "ISkDownAgent"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\DownAgent.DLL\AppID = "{31F92907-4B7F-438C-9861-925979028A21}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B7239B63-957B-4F26-9FC4-2483D08F6842}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B7239B63-957B-4F26-9FC4-2483D08F6842}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\PP2008\\plugins\\"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{01375C76-74CB-4566-839C-9F2CCEC5C43B}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E1D93961-3465-4BC5-A575-59BCC32C2C8D}\VersionIndependentProgID\ = "DownAgent.SkDownAgent"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B7239B63-957B-4F26-9FC4-2483D08F6842}\1.0\0\win32	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 836 wrote to memory of 1512	836	regsvr32.exe	83
PID 836 wrote to memory of 1512	836	regsvr32.exe	83
PID 836 wrote to memory of 1512	836	regsvr32.exe	83

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\PP2008\plugins\DownAgent.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:836
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\PP2008\plugins\DownAgent.dll
  2⤵
  - Modifies Internet Explorer settings
  - Modifies registry class
  PID:1512

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Windows 7 deprecation

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