565ea5b207facf99f94297836f52c852726ec97eaa6ee93d6d2303a5e3629123

Analysis

max time kernel
94s
max time network
122s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
28/09/2024, 01:48

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General

Target

$_4741_/flash9h.dll
Size

96KB
MD5

0fcb0e41a5e6f402c626e674f91e0778
SHA1

ba48c9b07c369504c198f844c4cf20a3c7c3d6e3
SHA256

756b22a3753c93491463ff22c362ff3bc173b47a69e77314b0c7c6e595967955
SHA512

7865d48c3362589fa2fb8283c631a58b38663aa062b5e1581c850b08295101572eeb284fa60c284d1713b3512694c21961fb15970aa834f1181343adaebdce0d
SSDEEP

1536:BNiTVFMfs2Yr4yK+H2nCKxdlQnTBDcpirm8lSxIJJoimcNo:B8VSs2YU4H9KzlQlcpenSgoim

Score

6^/10

adware discovery 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\{65807E2D-940C-41a0-99E2-54ABBDD2F506}	regsvr32.exe

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe

Modifies registry class 46 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A78968C6-3099-49FA-8DA1-8B9D96539392}\1.0\0\win32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\FlashUpgrade.FlashUpgradeSvr.1	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\FlashUpgrade.FlashUpgradeSvr.1\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{65807E2D-940C-41a0-99E2-54ABBDD2F506}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A78968C6-3099-49FA-8DA1-8B9D96539392}\1.0\ = "FlashObject 1.0 Type Library"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A78968C6-3099-49FA-8DA1-8B9D96539392}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\$_4741_"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{CC2FC0A0-3691-426C-B2D8-BAAACFF81064}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\FlashUpgrade.FlashUpgradeSvr.1\ = "Adobe Flash Upgrade Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{65807E2D-940C-41a0-99E2-54ABBDD2F506}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\$_4741_\\flash9h.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A78968C6-3099-49FA-8DA1-8B9D96539392}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{CC2FC0A0-3691-426C-B2D8-BAAACFF81064}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{CC2FC0A0-3691-426C-B2D8-BAAACFF81064}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{CC2FC0A0-3691-426C-B2D8-BAAACFF81064}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A78968C6-3099-49FA-8DA1-8B9D96539392}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\$_4741_\\flash9h.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{CC2FC0A0-3691-426C-B2D8-BAAACFF81064}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\FlashUpgrade.FlashUpgradeSvr\ = "Adobe Flash Upgrade Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{65807E2D-940C-41a0-99E2-54ABBDD2F506}\ = "Adobe Flash Upgrade Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{65807E2D-940C-41a0-99E2-54ABBDD2F506}\ProgID\ = "FlashUpgrade.FlashUpgradeSvr.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A78968C6-3099-49FA-8DA1-8B9D96539392}\1.0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A78968C6-3099-49FA-8DA1-8B9D96539392}\1.0\FLAGS	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A78968C6-3099-49FA-8DA1-8B9D96539392}\1.0\FLAGS\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{CC2FC0A0-3691-426C-B2D8-BAAACFF81064}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{CC2FC0A0-3691-426C-B2D8-BAAACFF81064}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\FlashUpgrade.FlashUpgradeSvr\CurVer	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{65807E2D-940C-41a0-99E2-54ABBDD2F506}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{CC2FC0A0-3691-426C-B2D8-BAAACFF81064}\TypeLib\ = "{A78968C6-3099-49FA-8DA1-8B9D96539392}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A78968C6-3099-49FA-8DA1-8B9D96539392}\1.0\0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{CC2FC0A0-3691-426C-B2D8-BAAACFF81064}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\FlashUpgrade.FlashUpgradeSvr.1\CLSID\ = "{65807E2D-940C-41a0-99E2-54ABBDD2F506}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\FlashUpgrade.FlashUpgradeSvr\CLSID\ = "{65807E2D-940C-41a0-99E2-54ABBDD2F506}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\FlashUpgrade.FlashUpgradeSvr\CurVer\ = "FlashUpgrade.FlashUpgradeSvr.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{65807E2D-940C-41a0-99E2-54ABBDD2F506}\VersionIndependentProgID\ = "FlashUpgrade.FlashUpgradeSvr"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{65807E2D-940C-41a0-99E2-54ABBDD2F506}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{65807E2D-940C-41a0-99E2-54ABBDD2F506}\TypeLib\ = "{A78968C6-3099-49fa-8DA1-8B9D96539392}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{CC2FC0A0-3691-426C-B2D8-BAAACFF81064}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{CC2FC0A0-3691-426C-B2D8-BAAACFF81064}\ = "IFlashObject"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\FlashUpgrade.FlashUpgradeSvr	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{65807E2D-940C-41a0-99E2-54ABBDD2F506}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{65807E2D-940C-41a0-99E2-54ABBDD2F506}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{CC2FC0A0-3691-426C-B2D8-BAAACFF81064}\ = "IFlashObject"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\FlashUpgrade.FlashUpgradeSvr\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{65807E2D-940C-41a0-99E2-54ABBDD2F506}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{65807E2D-940C-41a0-99E2-54ABBDD2F506}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A78968C6-3099-49FA-8DA1-8B9D96539392}\1.0\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{CC2FC0A0-3691-426C-B2D8-BAAACFF81064}\TypeLib\ = "{A78968C6-3099-49FA-8DA1-8B9D96539392}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{CC2FC0A0-3691-426C-B2D8-BAAACFF81064}\TypeLib\Version = "1.0"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2616 wrote to memory of 1980	2616	regsvr32.exe	82
PID 2616 wrote to memory of 1980	2616	regsvr32.exe	82
PID 2616 wrote to memory of 1980	2616	regsvr32.exe	82

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\$_4741_\flash9h.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2616
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\$_4741_\flash9h.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:1980

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

System Location Discovery

T1614

System Language Discovery

T1614.001

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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