86eb3bb81f62fd0a0fd455c6b92007831e6c33a803b4e8bf8001eb957faabdfa

Analysis

max time kernel
153s
max time network
163s
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, 15:29

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General

Target

NEAS.00d5769a29d73ad9f9c6b14738692e30_JC.dll
Size

357KB
MD5

00d5769a29d73ad9f9c6b14738692e30
SHA1

a096b4b25e200d7d35755c2260deab21fc52ea4a
SHA256

86eb3bb81f62fd0a0fd455c6b92007831e6c33a803b4e8bf8001eb957faabdfa
SHA512

464558c3c8c0d1a5effdcc6e429aaae5dab7da8cf041105cc0268a3f9cbaba1bc0601a602a4a6b937dc32110139e341638d373d16aa18994511e97e0493ad8af
SSDEEP

6144:aXX/mGf1DmyZXVn9OZXs5tu1Zvhq+riGlnUNoqvhJUy8rIzH/lDFVlPsBQ:EX/mEDmyZXGwKdhlfVvqvFL/lDFVlP

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1508	9839.tmp

Drops file in Program Files directory 19 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\EQUATION\concrt140.dll	9839.tmp
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\EQUATION\msvcr120.dll	9839.tmp
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX86\Microsoft Shared\OFFICE16\ADAL.DLL	9839.tmp
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX86\Microsoft Shared\OFFICE16\MSO.DLL	9839.tmp
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX86\Microsoft Shared\OFFICE16\Mso20win32client.dll	9839.tmp
File opened for modification	C:\Program Files\Common Files\microsoft shared\ClickToRun\AppvIsvSubsystems32.dll	9839.tmp
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX86\Microsoft Shared\OFFICE16\Mso40UIwin32client.dll	9839.tmp
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX86\Microsoft Shared\OFFICE16\Mso98win32client.dll	9839.tmp
File opened for modification	C:\Program Files\7-Zip\7z.sfx	9839.tmp
File opened for modification	C:\Program Files\7-Zip\7zCon.sfx	9839.tmp
File opened for modification	C:\Program Files\Microsoft Office\root\Integration\Addons\OneDriveSetup.exe	9839.tmp
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX86\Microsoft Shared\OFFICE16\concrt140.dll	9839.tmp
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX86\Microsoft Shared\OFFICE16\mfc140u.dll	9839.tmp
File opened for modification	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2R32.dll	9839.tmp
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\EQUATION\mfc140u.dll	9839.tmp
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX86\Microsoft Shared\OFFICE16\ADALPREVIOUS.DLL	9839.tmp
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX86\Microsoft Shared\OFFICE16\Csi.dll	9839.tmp
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX86\Microsoft Shared\OFFICE16\Mso30win32client.dll	9839.tmp
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX86\Microsoft Shared\OFFICE16\Mso50win32client.dll	9839.tmp

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3936	3500	WerFault.exe	86

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4940 wrote to memory of 3500	4940	rundll32.exe	86
PID 4940 wrote to memory of 3500	4940	rundll32.exe	86
PID 4940 wrote to memory of 3500	4940	rundll32.exe	86
PID 3500 wrote to memory of 1508	3500	rundll32.exe	87
PID 3500 wrote to memory of 1508	3500	rundll32.exe	87
PID 3500 wrote to memory of 1508	3500	rundll32.exe	87

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\NEAS.00d5769a29d73ad9f9c6b14738692e30_JC.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4940
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\NEAS.00d5769a29d73ad9f9c6b14738692e30_JC.dll,#1
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3500
- - C:\Users\Admin\AppData\Local\Temp\9839.tmp
    C:\Users\Admin\AppData\Local\Temp\9839.tmp
    3⤵
    - Executes dropped EXE
    - Drops file in Program Files directory
    PID:1508
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3500 -s 648
    3⤵
    - Program crash
    PID:3936

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 3500 -ip 3500
1⤵
PID:3160

Network

MITRE ATT&CK Matrix

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Downloads

C:\Users\Admin\AppData\Local\Temp\9839.tmp

Filesize
145KB

MD5
c610e7ccd6859872c585b2a85d7dc992

SHA1
362b3d4b72e3add687c209c79b500b7c6a246d46

SHA256
14063fc61dc71b9881d75e93a587c27a6daf8779ff5255a24a042beace541041

SHA512
8570aad2ae8b5dcba00fc5ebf3dc0ea117e96cc88a83febd820c5811bf617a6431c1367b3eb88332f43f80b30ebe2c298c22dcc44860a075f7b41bf350236666

Download Submit
C:\Users\Admin\AppData\Local\Temp\9839.tmp

Filesize
145KB

MD5
c610e7ccd6859872c585b2a85d7dc992

SHA1
362b3d4b72e3add687c209c79b500b7c6a246d46

SHA256
14063fc61dc71b9881d75e93a587c27a6daf8779ff5255a24a042beace541041

SHA512
8570aad2ae8b5dcba00fc5ebf3dc0ea117e96cc88a83febd820c5811bf617a6431c1367b3eb88332f43f80b30ebe2c298c22dcc44860a075f7b41bf350236666

Download Submit
memory/3500-0-0x0000000002A60000-0x0000000002A9F000-memory.dmp

Filesize
252KB

Download
memory/3500-1-0x0000000002A60000-0x0000000002A9F000-memory.dmp

Filesize
252KB

Download
memory/3500-2-0x0000000029A00000-0x0000000029A5E000-memory.dmp

Filesize
376KB

Download
memory/3500-13-0x0000000029A00000-0x0000000029A5E000-memory.dmp

Filesize
376KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix

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Downloads