netwalker | b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435

Analysis

max time kernel
33s
max time network
32s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
25-11-2024 15:45

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General

Target

b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
Size

282KB
MD5

e553d54a06009595a4ae269e9c96cbe0
SHA1

e762481794fa9096f4229f2eddfe0266bfc9f7ac
SHA256

b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435
SHA512

dba51a50f1b94ab8a7da9f0401993ba336b623afbbe9320a09f69fa89390889edca32bf237a9cc9f0b78e181790bbee005b43fc633feefc389bc4bc757f602b9
SSDEEP

3072:uvgIGSgSWSQ2qobyyBPgKlBkqdX2z6oXo:SgIGSgpSQ2J7PLlBkYXxoY

Score

10^/10

netwalker defense_evasion discovery execution impact ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Public\Libraries\A58086-Readme.txt

Family

netwalker

Ransom Note

Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .a58086 -- If for some reason you read this text before the encryption ended, this can be understood by the fact that the computer slows down, and your heart rate has increased due to the ability to turn it off, then we recommend that you move away from the computer and accept that you have been compromised. Rebooting/shutdown will cause you to lose files without the possibility of recovery. -- Our encryption algorithms are very strong and your files are very well protected, the only way to get your files back is to cooperate with us and get the decrypter program. Do not try to recover your files without a decrypter program, you may damage them and then they will be impossible to recover. For us this is just business and to prove to you our seriousness, we will decrypt you one file for free. Just open our website, upload the encrypted file and get the decrypted file for free. -- Steps to get access on our website: 1.Download and install tor-browser: https://torproject.org/ 2.Open our website: rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion 3.Put your personal code in the input form: {code_a58086: I7IoeZEwWgVvJatHTyf665lcPBornBuFVODepI/H7wCfxStWz7 hQytm8QfdFqIi76BSFNKxz5q97ijuHf3VqM95IrZbsseYH41Zj AhYvfgl5wwq5mqIAajDxfc0EzkWK4LtbMI9UaCYDF+h3hBr9M9 r62cXviql8QVn7T5tiFr35kxnhHvjfzuQXuxHnOZ1v8jSPfsaY krTT2AUbxszzwdFVPKnUk48FsAxJHuErcr9x4ZgysEWhxBxenw uisEGvcuHbL9DkWNb1Z5IBcS3gazyfy0Jy4E99xw==}

URLs

http://rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion

Signatures

Detected Netwalker Ransomware 7 IoCs

Detected unpacked Netwalker executable.

resource	yara_rule
behavioral1/memory/1980-1-0x0000000000400000-0x0000000000414000-memory.dmp	netwalker_ransomware
behavioral1/memory/1980-1653-0x0000000000400000-0x0000000000414000-memory.dmp	netwalker_ransomware
behavioral1/memory/1980-1812-0x0000000000400000-0x0000000000448000-memory.dmp	netwalker_ransomware
behavioral1/memory/1980-4971-0x0000000000400000-0x0000000000448000-memory.dmp	netwalker_ransomware
behavioral1/memory/1980-8272-0x0000000000400000-0x0000000000448000-memory.dmp	netwalker_ransomware
behavioral1/memory/1980-8295-0x0000000000400000-0x0000000000414000-memory.dmp	netwalker_ransomware
behavioral1/memory/1980-8294-0x0000000000400000-0x0000000000448000-memory.dmp	netwalker_ransomware

Netwalker Ransomware
Ransomware family with multiple versions. Also known as MailTo.
ransomware netwalker
Netwalker family
netwalker
Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware defense_evasion impact execution

File Deletion
T1070.004

Inhibit System Recovery
T1490

Windows Management Instrumentation
T1047
Renames multiple (7446) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

Deletes itself 1 IoCs

pid	Process
6832	cmd.exe

Reads user/profile data of web browsers 3 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

Credentials from Web Browsers
T1555.003

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\Publisher\Backgrounds\WB02106_.GIF	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms3\bg_GreenTea.gif	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\visualvm\modules\locale\com-sun-tools-visualvm-tools_zh_CN.jar	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\1033\GrooveForms5\FormsStyles\Casual.css	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\OutlookAutoDiscover\YAHOO.COM.MX.XML	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File opened for modification	C:\Program Files\Java\jre7\lib\zi\Etc\GMT+2	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\MEDIA\CAGCAT10\J0300840.WMF	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\plugins\access\libbluray-awt-j2se-1.3.2.jar	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\javafx.properties	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\NA00394_.WMF	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\hrtfs\dodeca_and_7channel_3DSL_HRTF.sofa	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Africa\Maputo	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0105294.WMF	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.ecf.core.ssl.feature_1.0.0.v20140827-1444\about.html	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File created	C:\Program Files\VideoLAN\VLC\locale\da\LC_MESSAGES\A58086-Readme.txt	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\config\Modules\org-netbeans-api-search.xml	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\MEDIA\CAGCAT10\J0292152.WMF	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\WB01749_.GIF	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\config\ModuleAutoDeps\org-openide-filesystems.xml	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\profiler\config\Modules\org-netbeans-modules-profiler.xml	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\MEDIA\CAGCAT10\J0304933.WMF	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Asia\Riyadh	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\FD00779_.WMF	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\MEDIA\CAGCAT10\J0157763.WMF	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File created	C:\Program Files\VideoLAN\VLC\locale\bn_IN\LC_MESSAGES\A58086-Readme.txt	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.rcp.application.zh_CN_5.5.0.165303.jar	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\1033\PUBFTSCM\SCHEME40.CSS	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\SWEST_01.MID	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File opened for modification	C:\Program Files\MSBuild\Microsoft\Windows Workflow Foundation\v3.5\Workflow.Targets	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\com.jrockit.mc.feature.rcp.ja_5.5.0.165303\feature.xml	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.launcher.win32.win32.x86_64_1.1.200.v20141007-2033\launcher.win32.win32.x86_64.properties	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\PE03731_.WMF	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms5\utilityfunctions.js	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File opened for modification	C:\Program Files\Java\jre7\lib\zi\America\Santa_Isabel	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms3\FormsStyles\Biscay.css	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Indiana\Indianapolis	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0099193.GIF	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Pacific\Honolulu	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File created	C:\Program Files\Java\jre7\lib\security\A58086-Readme.txt	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0187895.WMF	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\SO02958_.WMF	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0153047.WMF	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0251007.WMF	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\PUBWIZ\NAVBARV.POC	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0195248.WMF	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File created	C:\Program Files\VideoLAN\VLC\locale\mn\LC_MESSAGES\A58086-Readme.txt	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File created	C:\Program Files\VideoLAN\VLC\locale\ta\LC_MESSAGES\A58086-Readme.txt	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\1033\Issue Tracking.gta	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\PAGESIZE\PGLBL096.XML	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\FD02115_.WMF	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0099172.WMF	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\SL00260_.WMF	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\Groove\Certificates\groove.net\Components\SignedComponents.cer	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\1033\PUBFTSCM\SCHEME32.CSS	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Templates\1033\PersonalMonthlyBudget.xltx	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\PUBWIZ\FOLDPROJ.XML	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\EXLIRM.XML	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\update_tracking\org-netbeans-modules-editor-mimelookup-impl.xml	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.ecf.filetransfer.httpclient4.feature_3.9.1.v20140827-1444\META-INF\ECLIPSE_.RSA	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Document Themes 14\Theme Fonts\Pushpin.xml	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Document Themes 14\Perspective.thmx	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\ACCWIZ\ACWZMAIN.ACCDE	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0107290.WMF	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\PARNT_01.MID	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe

System Location Discovery: System Language Discovery 1 TTPs 4 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	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Interacts with shadow copies 3 TTPs 1 IoCs

Shadow copies are often targeted by ransomware to inhibit system recovery.

ransomware

File Deletion

T1070.004

Inhibit System Recovery

T1490

Direct Volume Access

T1006

pid	Process
1416	vssadmin.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
5240	taskkill.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
Token: SeImpersonatePrivilege	1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
Token: SeBackupPrivilege	4604	vssvc.exe
Token: SeRestorePrivilege	4604	vssvc.exe
Token: SeAuditPrivilege	4604	vssvc.exe
Token: SeDebugPrivilege	5240	taskkill.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1980 wrote to memory of 1416	1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe	30
PID 1980 wrote to memory of 1416	1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe	30
PID 1980 wrote to memory of 1416	1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe	30
PID 1980 wrote to memory of 1416	1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe	30
PID 1980 wrote to memory of 6408	1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe	36
PID 1980 wrote to memory of 6408	1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe	36
PID 1980 wrote to memory of 6408	1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe	36
PID 1980 wrote to memory of 6408	1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe	36
PID 1980 wrote to memory of 6832	1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe	37
PID 1980 wrote to memory of 6832	1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe	37
PID 1980 wrote to memory of 6832	1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe	37
PID 1980 wrote to memory of 6832	1980	b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe	37
PID 6832 wrote to memory of 5240	6832	cmd.exe	39
PID 6832 wrote to memory of 5240	6832	cmd.exe	39
PID 6832 wrote to memory of 5240	6832	cmd.exe	39
PID 6832 wrote to memory of 5240	6832	cmd.exe	39

Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Users\Admin\AppData\Local\Temp\b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe
"C:\Users\Admin\AppData\Local\Temp\b756980ef12f8abd3cc6c78f4b1574b58e46c83c3353de10750dcde161b35435N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1980
- C:\Windows\system32\vssadmin.exe
  C:\Windows\system32\vssadmin.exe delete shadows /all /quiet
  2⤵
  - Interacts with shadow copies
  PID:1416
- C:\Windows\SysWOW64\notepad.exe
  C:\Windows\system32\notepad.exe "C:\Users\Admin\Desktop\A58086-Readme.txt"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:6408
- C:\Windows\SysWOW64\cmd.exe
  cmd /c "C:\Users\Admin\AppData\Local\Temp\39F4.tmp.bat"
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:6832
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /F /PID 1980
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:5240

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4604

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Windows Management Instrumentation

T1047

Persistence

Privilege Escalation

Defense Evasion

Direct Volume Access

T1006

Indicator Removal

T1070

File Deletion

T1070.004

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Inhibit System Recovery

T1490

Replay Monitor

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Downloads

C:\ProgramData\Microsoft\Assistance\Client\1.0\en-US\Help_CValidator.H1D.a58086

Filesize
12KB

MD5
82d76a8e13826fb1f0eba8c91cb75cd5

SHA1
ce7623c56c32eb7a43d63b058a0b0f7ddf410b15

SHA256
05cc537cf621588383267d207574f0d4929fb329de1bf04b4cb9e228b5a0bba0

SHA512
4439cb56baedb760bc1462b8d5e91976e9355285f473edbee3b04a0b838b20aa23b9b7f24b11128f4bc7121de6b54ba205f85f89bc5ece5bdc946604eaad1d7c

Download Submit
C:\ProgramData\Microsoft\Assistance\Client\1.0\fr-FR\Help_CValidator.H1D.a58086

Filesize
12KB

MD5
61e6ebf23272e879a391ec05b1d6504f

SHA1
3a2d5bcae612317aad0479146f9b0b5a1cfe1b31

SHA256
fc485ed85b3bca20d1e81d49c9779ddc47783b8f30ae6bf15d78e159de758a8e

SHA512
739a28982e80b18a15f3216c49967c9c8781a8c4000a6cb7356acc985fe0db0686db06b4c148f44e2f4f4cef0265214320dad413abd5978ef05ac7fb2334f273

Download Submit
C:\ProgramData\Microsoft\Assistance\Client\1.0\it-IT\Help_CValidator.H1D.a58086

Filesize
12KB

MD5
74b41582b3a8ac69e72d9c0d360e28f0

SHA1
471445a440c743aef80f2d7c611b8ff4621e87f6

SHA256
64899aec6562216893f4da66268aee4fafdf6f223a775569015485c0a8a18852

SHA512
39dc3426466b7f7ca348984359465517155487ff8749b6e28f5e0ad698700e95efc8a452b93a5635677935a1cb861f40c6b8b231cb54387f8627973ca7c2d298

Download Submit
C:\Users\Admin\AppData\Local\Temp\39F4.tmp.bat

Filesize
142B

MD5
4286ef35c233b78458d304786feafb04

SHA1
f324828720b930941e044a6c7057dce9df620b54

SHA256
c0c32d4f96fc99c61b2530974e076750c126e50c6a3429ca668454a0b9e3259d

SHA512
95023413c77f56ecad8d197058a7380c530a6589cf98ce5056d1d564e98151bdfccf674d8e5d0463e85042b595eb9979f4f6fffafac94d05e639895008304572

Download Submit
C:\Users\Public\Libraries\A58086-Readme.txt

Filesize
1KB

MD5
05d8347a9a5d53a487a7e9537c13f414

SHA1
e5f307c13b0486119fd58008dd56bd5da0097507

SHA256
0b46eaa7abb5b1a6d51c3568a863eb86aacb3fe59fa917515b25a6d37f8537dd

SHA512
c1a474bac3bd3d2dd470ce0f4f5746edd851e1c2385f3a056fb4efe78c4347ee86871ea6bf668a93f455b817561715f52c3f137565acfdb0388a3989b499d455

Download Submit
memory/1980-1653-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1980-4971-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/1980-1812-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/1980-0-0x0000000000220000-0x0000000000246000-memory.dmp

Filesize
152KB

Download
memory/1980-8272-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/1980-1-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1980-8295-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1980-8294-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download