2f0c181cad9727293e8a1aefb47253c3ec8815c8574ba49f05d543c983313b5a

Analysis

max time kernel
119s
max time network
101s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
24-08-2024 02:44

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General

Target

21d96c25e76a09d2ed336b8462d7be60N.exe
Size

65KB
MD5

21d96c25e76a09d2ed336b8462d7be60
SHA1

10f3c4ad7b71f3813d4f646ee09baa65550afc2a
SHA256

2f0c181cad9727293e8a1aefb47253c3ec8815c8574ba49f05d543c983313b5a
SHA512

2d1c07cd60cbea9be229d9f42ca7144b9fb50e32730def4390290893a9e25c81fb9455d6ed477cebcc495247c5d22e867ece175f42c40a0db41fe83b70c3ed88
SSDEEP

768:V7Blpf/FAK65euBT37CPKKQSjSEXBwzEXBw3sgQw58eGkz2rcuesgQw58eGkz2rU:V7Zf/FAxTWtnMdyGdyoIOIM

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4653) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4652-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0006000000022998-2.dat	upx
behavioral2/files/0x00040000000228f4-6.dat	upx
behavioral2/memory/4652-882-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Threading.Tasks.dll.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\mscordaccore.dll.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\it\System.Windows.Input.Manipulations.resources.dll.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Fonts\Calibri.xml.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Net.Sockets.dll.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hant\PresentationCore.resources.dll.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSOHEVI.DLL.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\j2gss.dll.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\Java\jre-1.8\lib\content-types.properties.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\Java\jre-1.8\lib\deploy\messages_zh_CN.properties.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365BusinessR_Subscription-ul-oob.xrm-ms.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\FrequentOfficeUpdateSchedule.xml.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ipscsy.xml.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ja-JP\TipRes.dll.mui.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\it\PresentationUI.resources.dll.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ja\System.Windows.Forms.Primitives.resources.dll.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\DataServices\FOLDER.ICO.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\AppvIsvSubsystems64.dll.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\Common Files\System\Ole DB\msdaosp.dll.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-core-heap-l1-1-0.dll.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdO365R_Subscription-ul-oob.xrm-ms.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\PSRCHPHN.DAT.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.Office.PowerPivot.ExcelAddIn.tlb.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\de\UIAutomationProvider.resources.dll.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\Java\jre-1.8\bin\fontmanager.dll.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PowerPointR_Trial-ul-oob.xrm-ms.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\Common Files\System\msadc\ja-JP\msdaprsr.dll.mui.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Security.Cryptography.Algorithms.dll.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\tr\UIAutomationTypes.resources.dll.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\Java\jdk-1.8\jmc.txt.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\Java\jre-1.8\lib\management-agent.jar.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PowerPointR_Retail-ul-oob.xrm-ms.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\msvcr120.dll.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hans\System.Windows.Input.Manipulations.resources.dll.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\Java\jre-1.8\bin\j2pcsc.dll.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365BusinessDemoR_BypassTrial365-ppd.xrm-ms.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019R_Retail-ul-phn.xrm-ms.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProVL_KMS_Client-ul-oob.xrm-ms.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Localytics.dll.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.WindowsAzure.StorageClient.dll.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-crt-conio-l1-1-0.dll.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\javafx\directshow.md.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\Java\jre-1.8\legal\jdk\unicode.md.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_SubTrial2-ppd.xrm-ms.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Outlook2019R_Retail-ppd.xrm-ms.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\Java\jre-1.8\lib\cmm\sRGB.pf.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_OEM_Perp-ppd.xrm-ms.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\fr\UIAutomationTypes.resources.dll.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hans\UIAutomationProvider.resources.dll.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019XC2RVL_KMS_ClientC2R-ul-oob.xrm-ms.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Storage.XmlSerializers.dll.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\7-Zip\Lang\az.txt.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.en-us.dll.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ja\UIAutomationClientSideProviders.resources.dll.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\jabswitch.exe.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_O16ConsumerPerp_Bypass30-ppd.xrm-ms.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.IO.FileSystem.Primitives.dll.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\Java\jre-1.8\bin\jsdt.dll.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019R_OEM_Perp-pl.xrm-ms.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\es\WindowsBase.resources.dll.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\fonts\LucidaSansDemiBold.ttf.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\Java\jdk-1.8\lib\jconsole.jar.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_OEM_Perp2-ul-oob.xrm-ms.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\en\LocalizedStrings.xml.tmp	21d96c25e76a09d2ed336b8462d7be60N.exe

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	21d96c25e76a09d2ed336b8462d7be60N.exe

C:\Users\Admin\AppData\Local\Temp\21d96c25e76a09d2ed336b8462d7be60N.exe
"C:\Users\Admin\AppData\Local\Temp\21d96c25e76a09d2ed336b8462d7be60N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:4652

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

Replay Monitor

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Downloads

C:\$Recycle.Bin\S-1-5-21-2392887640-1187051047-2909758433-1000\desktop.ini.tmp

Filesize
65KB

MD5
38cf694acf241f7408dbf05b70bbc568

SHA1
d0627bbbf8b9b427cda7112353e275ed3adad543

SHA256
d5e78db337f5505019c7381ce4696015d7efa56ae312ab230c34ba45473ebd36

SHA512
ef55adfb475b6047df9e3184d39cac2b6d0f75d81decd59f767284fc922ce2acf16a27d96a2b4002b71bffda71783e27391af99513ac2ab6c6af458f2e239eef

Download Submit
C:\Program Files\7-Zip\7-zip.dll.tmp

Filesize
164KB

MD5
90140b15fa135cadca37b1fa1b5ae722

SHA1
9b7938f18cac43dd9ac3ac5f20ab8a328b02da0d

SHA256
5e9f0fc0ca74f45e6f95315b8f8275a500acbd2b0cf193c86492ef53553e3285

SHA512
e32e8b5053ce9f6c875a7c517778b2b73dbd8974bea67443eeb155ce6d1e2a32da699f0fa9f80379465cb076ab043c19188c729d0af81ba89394a11b19fa7d7b

Download Submit
memory/4652-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4652-882-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download