6e57cc1089550949acad647afaff4f887f325b392402dd9c7c1b16d3e939cf44

Analysis

max time kernel
137s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
11-10-2023 17:09

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General

Target

NEAS.12ae2c49e21d10012ced9e6841a24d50_JC.dll
Size

275KB
MD5

12ae2c49e21d10012ced9e6841a24d50
SHA1

48b94a31c44404be93bff1aea2371cd0da4ecbf6
SHA256

6e57cc1089550949acad647afaff4f887f325b392402dd9c7c1b16d3e939cf44
SHA512

33cc5cd8eb787039231cdcad319dafff62b8e5ed1207619c9d4b2c94d4f2cd9c8072b745eee21edd0a8255fb8c956640ed70dca2595ad72ef172fac29959eeb3
SSDEEP

6144:tuNYVkz0ibBSW7IPA+l9xmzKgqAfQwtQmYDfKf9yH:S7eWoA+l9cGgZQOrxo

Score

7^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2288	D542.tmp

Registers COM server for autorun 1 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000_Classes\WOW6432Node\CLSID\{AD269E3E-2A94-4ebd-A082-9927E55E1E1D}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\NEAS.12ae2c49e21d10012ced9e6841a24d50_JC.dll"	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000_Classes\WOW6432Node\CLSID\{AD269E3E-2A94-4ebd-A082-9927E55E1E1D}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000_Classes\WOW6432Node\CLSID\{AD269E3E-2A94-4ebd-A082-9927E55E1E1D}\InprocServer32	regsvr32.exe

Modifies registry class 50 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000_Classes\CommunicatorMeetingJoinAx.JoinManager\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000_Classes\WOW6432Node\CLSID\{AD269E3E-2A94-4ebd-A082-9927E55E1E1D}\ProgID\ = "CommunicatorMeetingJoinAx.JoinManager.1"	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000_Classes\WOW6432Node\CLSID\{AD269E3E-2A94-4ebd-A082-9927E55E1E1D}\TypeLib	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000_Classes\TypeLib\{D6DA003A-AFF3-4850-A161-F3D883FF2447}\2.0\FLAGS	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000_Classes\TypeLib\{D6DA003A-AFF3-4850-A161-F3D883FF2447}\2.0\0\win32	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000_Classes\TypeLib\{D6DA003A-AFF3-4850-A161-F3D883FF2447}\2.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp"	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000_Classes\WOW6432Node\Interface\{A5B54E0D-296A-4880-A3E3-82555CDB92B8}\TypeLib\Version = "2.0"	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000_Classes\AppID\MeetingJoinAxOC.DLL\AppID = "{2E4C0794-2723-4406-9EDF-35BC76D8EA8F}"	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000_Classes\Interface\{A5B54E0D-296A-4880-A3E3-82555CDB92B8}\TypeLib	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000_Classes\WOW6432Node\CLSID\{AD269E3E-2A94-4ebd-A082-9927E55E1E1D}	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000_Classes\WOW6432Node\CLSID\{AD269E3E-2A94-4ebd-A082-9927E55E1E1D}\VersionIndependentProgID\ = "CommunicatorMeetingJoinAx.JoinManager"	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000_Classes\TypeLib\{D6DA003A-AFF3-4850-A161-F3D883FF2447}\2.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\NEAS.12ae2c49e21d10012ced9e6841a24d50_JC.dll"	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000_Classes\WOW6432Node\Interface\{A5B54E0D-296A-4880-A3E3-82555CDB92B8}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000_Classes\Interface\{A5B54E0D-296A-4880-A3E3-82555CDB92B8}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000_Classes\AppID\MeetingJoinAxOC.DLL	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000_Classes\TypeLib\{D6DA003A-AFF3-4850-A161-F3D883FF2447}	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000_Classes\TypeLib\{D6DA003A-AFF3-4850-A161-F3D883FF2447}\2.0\FLAGS\ = "0"	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000_Classes\WOW6432Node\Interface\{A5B54E0D-296A-4880-A3E3-82555CDB92B8}\ = "IMeetingJoinHelper"	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000_Classes\Interface\{A5B54E0D-296A-4880-A3E3-82555CDB92B8}	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000_Classes\Interface\{A5B54E0D-296A-4880-A3E3-82555CDB92B8}\ = "IMeetingJoinHelper"	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000_Classes\AppID\{2E4C0794-2723-4406-9EDF-35BC76D8EA8F}\ = "MeetingJoinAxOC"	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000_Classes\CommunicatorMeetingJoinAx.JoinManager.1\ = "MeetingJoinHelperOC Class"	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000_Classes\CommunicatorMeetingJoinAx.JoinManager.1\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000_Classes\WOW6432Node\CLSID\{AD269E3E-2A94-4ebd-A082-9927E55E1E1D}\ = "MeetingJoinHelperOC Class"	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000_Classes\WOW6432Node\CLSID\{AD269E3E-2A94-4ebd-A082-9927E55E1E1D}\ProgID	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000_Classes\TypeLib\{D6DA003A-AFF3-4850-A161-F3D883FF2447}\2.0	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000_Classes\AppID\{2E4C0794-2723-4406-9EDF-35BC76D8EA8F}	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000_Classes\CommunicatorMeetingJoinAx.JoinManager\CLSID\ = "{AD269E3E-2A94-4ebd-A082-9927E55E1E1D}"	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000_Classes\WOW6432Node\Interface\{A5B54E0D-296A-4880-A3E3-82555CDB92B8}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000_Classes\Interface\{A5B54E0D-296A-4880-A3E3-82555CDB92B8}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000_Classes\CommunicatorMeetingJoinAx.JoinManager	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000_Classes\CommunicatorMeetingJoinAx.JoinManager.1\CLSID\ = "{AD269E3E-2A94-4ebd-A082-9927E55E1E1D}"	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000_Classes\WOW6432Node\CLSID\{AD269E3E-2A94-4ebd-A082-9927E55E1E1D}\Programmable	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000_Classes\WOW6432Node\CLSID\{AD269E3E-2A94-4ebd-A082-9927E55E1E1D}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000_Classes\WOW6432Node\CLSID\{AD269E3E-2A94-4ebd-A082-9927E55E1E1D}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000_Classes\WOW6432Node\CLSID\{AD269E3E-2A94-4ebd-A082-9927E55E1E1D}\TypeLib\ = "{4B3ECB51-B857-4a55-B500-65DDD90EDD0E}"	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000_Classes\Interface\{A5B54E0D-296A-4880-A3E3-82555CDB92B8}\TypeLib\ = "{D6DA003A-AFF3-4850-A161-F3D883FF2447}"	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000_Classes\CommunicatorMeetingJoinAx.JoinManager.1	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000_Classes\WOW6432Node\CLSID\{AD269E3E-2A94-4ebd-A082-9927E55E1E1D}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\NEAS.12ae2c49e21d10012ced9e6841a24d50_JC.dll"	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000_Classes\TypeLib\{D6DA003A-AFF3-4850-A161-F3D883FF2447}\2.0\ = "MeetingJoinHelper 2.0 Type Library"	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000_Classes\TypeLib\{D6DA003A-AFF3-4850-A161-F3D883FF2447}\2.0\0	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000_Classes\TypeLib\{D6DA003A-AFF3-4850-A161-F3D883FF2447}\2.0\HELPDIR	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000_Classes\WOW6432Node\Interface\{A5B54E0D-296A-4880-A3E3-82555CDB92B8}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000_Classes\Interface\{A5B54E0D-296A-4880-A3E3-82555CDB92B8}\TypeLib\Version = "2.0"	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000_Classes\WOW6432Node\CLSID\{AD269E3E-2A94-4ebd-A082-9927E55E1E1D}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000_Classes\CommunicatorMeetingJoinAx.JoinManager\CurVer	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000_Classes\CommunicatorMeetingJoinAx.JoinManager\CurVer\ = "CommunicatorMeetingJoinAx.JoinManager.1"	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000_Classes\WOW6432Node\Interface\{A5B54E0D-296A-4880-A3E3-82555CDB92B8}	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000_Classes\WOW6432Node\Interface\{A5B54E0D-296A-4880-A3E3-82555CDB92B8}\TypeLib\ = "{D6DA003A-AFF3-4850-A161-F3D883FF2447}"	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000_Classes\CommunicatorMeetingJoinAx.JoinManager\ = "MeetingJoinHelperOC Class"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4700 wrote to memory of 232	4700	regsvr32.exe	83
PID 4700 wrote to memory of 232	4700	regsvr32.exe	83
PID 4700 wrote to memory of 232	4700	regsvr32.exe	83

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\NEAS.12ae2c49e21d10012ced9e6841a24d50_JC.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:4700
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\NEAS.12ae2c49e21d10012ced9e6841a24d50_JC.dll
  2⤵
  - Registers COM server for autorun
  - Modifies registry class
  PID:232
- - C:\Users\Admin\AppData\Local\Temp\D542.tmp
    C:\Users\Admin\AppData\Local\Temp\D542.tmp
    3⤵
    - Executes dropped EXE
    PID:2288

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\D542.tmp

Filesize
145KB

MD5
c610e7ccd6859872c585b2a85d7dc992

SHA1
362b3d4b72e3add687c209c79b500b7c6a246d46

SHA256
14063fc61dc71b9881d75e93a587c27a6daf8779ff5255a24a042beace541041

SHA512
8570aad2ae8b5dcba00fc5ebf3dc0ea117e96cc88a83febd820c5811bf617a6431c1367b3eb88332f43f80b30ebe2c298c22dcc44860a075f7b41bf350236666

Download Submit
memory/232-0-0x0000000002CF0000-0x0000000002D26000-memory.dmp

Filesize
216KB

Download
memory/232-1-0x0000000010000000-0x0000000010049000-memory.dmp

Filesize
292KB

Download
memory/232-3-0x0000000010000000-0x0000000010049000-memory.dmp

Filesize
292KB

Download
memory/232-6-0x0000000010000000-0x0000000010049000-memory.dmp

Filesize
292KB

Download
memory/232-5-0x0000000010000000-0x0000000010049000-memory.dmp

Filesize
292KB

Download
memory/232-8-0x0000000010000000-0x0000000010049000-memory.dmp

Filesize
292KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads