503e5ef63636254bb35f7c79da99d83e773e5fd8f0217c861f95bd551f28c244

Analysis

max time kernel
151s
max time network
127s
platform
windows7_x64
resource
win7-20231020-en
resource tags

arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
submitted
21/10/2023, 21:25

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General

Target

NEAS.887b7c81aeee919f91674242908faf60.dll
Size

499KB
MD5

887b7c81aeee919f91674242908faf60
SHA1

25b63685ae6a634e6299e127bbf04d09be158f3b
SHA256

503e5ef63636254bb35f7c79da99d83e773e5fd8f0217c861f95bd551f28c244
SHA512

7fff463cdc11038786ff956caed5889458604c33eb4693c27e4921ed5d69b7e9cf86c90eb6ab31ae63afb4ef751a059aa1195e2ab81b131b25f8dd0297cc6838
SSDEEP

12288:jLAqg0CqojLWyvfTVkzp42wpCq5fIuDLhsz9ULR:jLzg0DwLWyvb2zp4FpCWVhsz9UL

Score

7^/10

spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1700	4F77.tmp

Loads dropped DLL 2 IoCs

pid	Process
1688	rundll32.exe
1688	rundll32.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\ACCDDSF.DLL	4F77.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\GROOVEEX.DLL	4F77.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MCPS.DLL	4F77.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\mset7.dll	4F77.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\ONENOTE.EXE	4F77.tmp
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\TRANSLAT\MSB1XTOR.DLL	4F77.tmp
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\EQUATION\EQNEDT32.EXE	4F77.tmp
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\Smart Tag\FSTOCK.DLL	4F77.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\GRAPH.EXE	4F77.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\PROOF\MSTH7EN.DLL	4F77.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\1033\ONELEV.EXE	4F77.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\PROOF\1033\MSGR3EN.DLL	4F77.tmp
File created	C:\Program Files (x86)\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelperShim.dll	4F77.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\GROOVE.EXE	4F77.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\IEContentService.exe	4F77.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MSOHTMED.EXE	4F77.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\TWCUTCHR.DLL	4F77.tmp
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\EScript.api	4F77.tmp
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\Smart Tag\FPERSON.DLL	4F77.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\AUTHZAX.DLL	4F77.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\SCANPST.EXE	4F77.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\CONVERT\DESKSAM.SAM	4F77.tmp
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\Search.api	4F77.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\ACCDDS.DLL	4F77.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\1033\XLSLICER.DLL	4F77.tmp
File opened for modification	C:\Program Files (x86)\Mozilla Maintenance Service\Uninstall.exe	4F77.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\IMPMAIL.DLL	4F77.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MSTORDB.EXE	4F77.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\OUTLMIME.DLL	4F77.tmp
File opened for modification	C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\sqlceca35.dll	4F77.tmp
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\sqlite.dll	4F77.tmp
File opened for modification	C:\Program Files (x86)\Common Files\Adobe AIR\Versions\1.0\WebKit.dll	4F77.tmp
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleUpdateCore.exe	4F77.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MSOUC.EXE	4F77.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\VVIEWDWG.DLL	4F77.tmp
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\DW\DW20.EXE	4F77.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Analysis Services\AS OLEDB\10\msolap100.dll	4F77.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\OWSCLT.DLL	4F77.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\EMSMDB32.DLL	4F77.tmp
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins3d\drvDX8.x3d	4F77.tmp
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\OFFICE14\VBAJET32.DLL	4F77.tmp
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\VSTO\10.0\VSTOInstaller.exe	4F77.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\excelcnv.exe	4F77.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MSTORES.DLL	4F77.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\OUTLPH.DLL	4F77.tmp
File created	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AdobeUpdater.dll	4F77.tmp
File created	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\atl.dll	4F77.tmp
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\Multimedia.api	4F77.tmp
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\OFFICE14\ACERCLR.DLL	4F77.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\ONWordAddin.dll	4F77.tmp
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\TRANSLAT\WTSP61MS.DLL	4F77.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\ContactPicker.dll	4F77.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\oisctrl.dll	4F77.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MSOCFU.DLL	4F77.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\URLREDIR.DLL	4F77.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\ADDINS\UmOutlookAddin.dll	4F77.tmp
File opened for modification	C:\Program Files\Mozilla Firefox\maintenanceservice_installer.exe	4F77.tmp
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins3d\drvDX9.x3d	4F77.tmp
File opened for modification	C:\Program Files (x86)\Common Files\DESIGNER\MSADDNDR.DLL	4F77.tmp
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\Web Server Extensions\14\BIN\FPSRVUTL.DLL	4F77.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\INTLDATE.DLL	4F77.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\CONVERT\OL.SAM	4F77.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\PROOF\MSTH7ES.DLL	4F77.tmp
File opened for modification	C:\Program Files (x86)\Microsoft Analysis Services\AS OLEDB\10\msmgdsrv.dll	4F77.tmp

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\assembly\GAC_32\PresentationCore\3.0.0.0__31bf3856ad364e35\wpfgfx_v0300.dll	4F77.tmp
File created	C:\Windows\assembly\GAC_32\System.Data\2.0.0.0__b77a5c561934e089\System.Data.dll	4F77.tmp
File created	C:\Windows\assembly\GAC_32\System.Data.OracleClient\2.0.0.0__b77a5c561934e089\System.Data.OracleClient.dll	4F77.tmp

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2540	1688	WerFault.exe	28

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2276 wrote to memory of 1688	2276	rundll32.exe	28
PID 2276 wrote to memory of 1688	2276	rundll32.exe	28
PID 2276 wrote to memory of 1688	2276	rundll32.exe	28
PID 2276 wrote to memory of 1688	2276	rundll32.exe	28
PID 2276 wrote to memory of 1688	2276	rundll32.exe	28
PID 2276 wrote to memory of 1688	2276	rundll32.exe	28
PID 2276 wrote to memory of 1688	2276	rundll32.exe	28
PID 1688 wrote to memory of 1700	1688	rundll32.exe	29
PID 1688 wrote to memory of 1700	1688	rundll32.exe	29
PID 1688 wrote to memory of 1700	1688	rundll32.exe	29
PID 1688 wrote to memory of 1700	1688	rundll32.exe	29
PID 1688 wrote to memory of 2540	1688	rundll32.exe	30
PID 1688 wrote to memory of 2540	1688	rundll32.exe	30
PID 1688 wrote to memory of 2540	1688	rundll32.exe	30
PID 1688 wrote to memory of 2540	1688	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\NEAS.887b7c81aeee919f91674242908faf60.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2276
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\NEAS.887b7c81aeee919f91674242908faf60.dll,#1
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:1688
- - C:\Users\Admin\AppData\Local\Temp\4F77.tmp
    C:\Users\Admin\AppData\Local\Temp\4F77.tmp
    3⤵
    - Executes dropped EXE
    - Drops file in Program Files directory
    - Drops file in Windows directory
    PID:1700
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1688 -s 228
    3⤵
    - Program crash
    PID:2540

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\4F77.tmp

Filesize
145KB

MD5
c610e7ccd6859872c585b2a85d7dc992

SHA1
362b3d4b72e3add687c209c79b500b7c6a246d46

SHA256
14063fc61dc71b9881d75e93a587c27a6daf8779ff5255a24a042beace541041

SHA512
8570aad2ae8b5dcba00fc5ebf3dc0ea117e96cc88a83febd820c5811bf617a6431c1367b3eb88332f43f80b30ebe2c298c22dcc44860a075f7b41bf350236666

Download Submit
C:\Users\Admin\AppData\Local\Temp\4F77.tmp

Filesize
145KB

MD5
c610e7ccd6859872c585b2a85d7dc992

SHA1
362b3d4b72e3add687c209c79b500b7c6a246d46

SHA256
14063fc61dc71b9881d75e93a587c27a6daf8779ff5255a24a042beace541041

SHA512
8570aad2ae8b5dcba00fc5ebf3dc0ea117e96cc88a83febd820c5811bf617a6431c1367b3eb88332f43f80b30ebe2c298c22dcc44860a075f7b41bf350236666

Download Submit
C:\Users\Admin\AppData\Local\Temp\4F77.tmp

Filesize
145KB

MD5
c610e7ccd6859872c585b2a85d7dc992

SHA1
362b3d4b72e3add687c209c79b500b7c6a246d46

SHA256
14063fc61dc71b9881d75e93a587c27a6daf8779ff5255a24a042beace541041

SHA512
8570aad2ae8b5dcba00fc5ebf3dc0ea117e96cc88a83febd820c5811bf617a6431c1367b3eb88332f43f80b30ebe2c298c22dcc44860a075f7b41bf350236666

Download Submit
\Users\Admin\AppData\Local\Temp\4F77.tmp

Filesize
145KB

MD5
c610e7ccd6859872c585b2a85d7dc992

SHA1
362b3d4b72e3add687c209c79b500b7c6a246d46

SHA256
14063fc61dc71b9881d75e93a587c27a6daf8779ff5255a24a042beace541041

SHA512
8570aad2ae8b5dcba00fc5ebf3dc0ea117e96cc88a83febd820c5811bf617a6431c1367b3eb88332f43f80b30ebe2c298c22dcc44860a075f7b41bf350236666

Download Submit
\Users\Admin\AppData\Local\Temp\4F77.tmp

Filesize
145KB

MD5
c610e7ccd6859872c585b2a85d7dc992

SHA1
362b3d4b72e3add687c209c79b500b7c6a246d46

SHA256
14063fc61dc71b9881d75e93a587c27a6daf8779ff5255a24a042beace541041

SHA512
8570aad2ae8b5dcba00fc5ebf3dc0ea117e96cc88a83febd820c5811bf617a6431c1367b3eb88332f43f80b30ebe2c298c22dcc44860a075f7b41bf350236666

Download Submit
memory/1688-0-0x00000000006A0000-0x00000000006E4000-memory.dmp

Filesize
272KB

Download
memory/1688-1-0x00000000006A0000-0x00000000006E4000-memory.dmp

Filesize
272KB

Download