23c707f9cc1a222d593738b5fcaf9d06da19104b83be91788c879f134800a851

Analysis

max time kernel
82s
max time network
16s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25-09-2024 23:55

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General

Target

$WINDIR/System32/dsaoms.dll
Size

92KB
MD5

a27e788246ebb3fb59173594d314fd33
SHA1

8081d0f8cb50ebec461427d132c1d6af0c1a734b
SHA256

c89a745ab8482e9871d1f86d0c73d30e651189769614c80a972b5e76aba28165
SHA512

3ae147466c0d15887db70f2f8aed92126e7c0e670444ec76d24f50c4beb67c6745edd87778a70581d9cc5b6ea7a0bfc6a4c20a8aa5ffe590a64eb40f3bd7bba2
SSDEEP

1536:fFp5UswnyM1VVvkXO9fWftSpfaaXVagKQwbMBwiAo3NN+8wlUsV/T0:z5UswnyM3VvlSsVa3X23T+8wlUs1A

Score

3^/10

discovery

Malware Config

Signatures

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 50 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0C50F454-9710-4949-A68E-3AF0738CC121}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0C50F454-9710-4949-A68E-3AF0738CC121}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E0D28399-E9B8-48A5-BEC7-4DC1BD6CDAF8}\1.0\HELPDIR	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{E657594E-2F36-4A78-9DC9-687D9F9858B6}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{E657594E-2F36-4A78-9DC9-687D9F9858B6}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{E657594E-2F36-4A78-9DC9-687D9F9858B6}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{E657594E-2F36-4A78-9DC9-687D9F9858B6}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\AnswerWorks.AnswerWorksExt.1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\AnswerWorks.AnswerWorksExt.1\CLSID\ = "{0C50F454-9710-4949-A68E-3AF0738CC121}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E0D28399-E9B8-48A5-BEC7-4DC1BD6CDAF8}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E0D28399-E9B8-48A5-BEC7-4DC1BD6CDAF8}\1.0\0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E0D28399-E9B8-48A5-BEC7-4DC1BD6CDAF8}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\$WINDIR\\System32\\dsaoms.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{E657594E-2F36-4A78-9DC9-687D9F9858B6}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{E657594E-2F36-4A78-9DC9-687D9F9858B6}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{E657594E-2F36-4A78-9DC9-687D9F9858B6}\ = "ISimpleShlExt"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\AnswerWorks.AnswerWorksExt	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\AnswerWorks.AnswerWorksExt\ = "AnswerWorksExt Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0C50F454-9710-4949-A68E-3AF0738CC121}\VersionIndependentProgID\ = "AnswerWorks.AnswerWorksExt"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0C50F454-9710-4949-A68E-3AF0738CC121}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\$WINDIR\\System32\\dsaoms.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E0D28399-E9B8-48A5-BEC7-4DC1BD6CDAF8}\1.0\FLAGS	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E0D28399-E9B8-48A5-BEC7-4DC1BD6CDAF8}\1.0\FLAGS\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{E657594E-2F36-4A78-9DC9-687D9F9858B6}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0C50F454-9710-4949-A68E-3AF0738CC121}\ProgID\ = "AnswerWorks.AnswerWorksExt.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\ShellEx\ContextMenuHandlers\AnswerWorksExt	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\ShellEx\ContextMenuHandlers\AnswerWorksExt\ = "{0C50F454-9710-4949-A68E-3AF0738CC121}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{E657594E-2F36-4A78-9DC9-687D9F9858B6}\TypeLib\ = "{E0D28399-E9B8-48A5-BEC7-4DC1BD6CDAF8}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0C50F454-9710-4949-A68E-3AF0738CC121}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0C50F454-9710-4949-A68E-3AF0738CC121}\TypeLib\ = "{E0D28399-E9B8-48A5-BEC7-4DC1BD6CDAF8}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{E657594E-2F36-4A78-9DC9-687D9F9858B6}\ = "ISimpleShlExt"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\AnswerWorks.AnswerWorksExt.1\ = "AnswerWorksExt Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\AnswerWorks.AnswerWorksExt.1\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0C50F454-9710-4949-A68E-3AF0738CC121}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0C50F454-9710-4949-A68E-3AF0738CC121}\ = "AnswerWorksExt Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0C50F454-9710-4949-A68E-3AF0738CC121}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0C50F454-9710-4949-A68E-3AF0738CC121}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E0D28399-E9B8-48A5-BEC7-4DC1BD6CDAF8}\1.0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E0D28399-E9B8-48A5-BEC7-4DC1BD6CDAF8}\1.0\0\win32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{E657594E-2F36-4A78-9DC9-687D9F9858B6}\TypeLib\ = "{E0D28399-E9B8-48A5-BEC7-4DC1BD6CDAF8}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\AnswerWorks.AnswerWorksExt\CurVer\ = "AnswerWorks.AnswerWorksExt.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\ShellEx\ContextMenuHandlers	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E0D28399-E9B8-48A5-BEC7-4DC1BD6CDAF8}\1.0\ = "AnswerWorksExtExt 1.0 Type Library"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E0D28399-E9B8-48A5-BEC7-4DC1BD6CDAF8}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\$WINDIR\\System32\\"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{E657594E-2F36-4A78-9DC9-687D9F9858B6}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{E657594E-2F36-4A78-9DC9-687D9F9858B6}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{E657594E-2F36-4A78-9DC9-687D9F9858B6}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\AnswerWorks.AnswerWorksExt\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\AnswerWorks.AnswerWorksExt\CLSID\ = "{0C50F454-9710-4949-A68E-3AF0738CC121}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\AnswerWorks.AnswerWorksExt\CurVer	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0C50F454-9710-4949-A68E-3AF0738CC121}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\ShellEx	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2808 wrote to memory of 2164	2808	regsvr32.exe	30
PID 2808 wrote to memory of 2164	2808	regsvr32.exe	30
PID 2808 wrote to memory of 2164	2808	regsvr32.exe	30
PID 2808 wrote to memory of 2164	2808	regsvr32.exe	30
PID 2808 wrote to memory of 2164	2808	regsvr32.exe	30
PID 2808 wrote to memory of 2164	2808	regsvr32.exe	30
PID 2808 wrote to memory of 2164	2808	regsvr32.exe	30

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\$WINDIR\System32\dsaoms.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2808
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\$WINDIR\System32\dsaoms.dll
  2⤵
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:2164

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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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