2b339fd3cf5d82a6fed1a68aaaa8237a07e71288b6916abfd154bbf4bf725b4e

Analysis

max time kernel
120s
max time network
99s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
06/09/2024, 10:08

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General

Target

3c06a5558d95f4a5ca91fd483320ef80N.exe
Size

67KB
MD5

3c06a5558d95f4a5ca91fd483320ef80
SHA1

3538a296018ebcf558f2517b0b27baf9b327127f
SHA256

2b339fd3cf5d82a6fed1a68aaaa8237a07e71288b6916abfd154bbf4bf725b4e
SHA512

b64193e1730a52fa5b13a6e2df75c715bf352f26dfbdf41f466e40ac9dcf0839d58638955e2b7318041f006b99c744270fc264206f357fc1fc85c80d6ccb8db2
SSDEEP

768:V7Blpf/FAK65euBT37CPKKQSjyJJ1EXBwzEXBwdcMcwBcCBcw/tio/tiFDFCXXT:V7Zf/FAxTWoJJ7TTQoQFDFCXXT

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4243) 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/1796-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000900000002349f-2.dat	upx
behavioral2/files/0x0004000000022933-6.dat	upx
behavioral2/memory/1796-808-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\7-Zip\Lang\nl.txt.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\Java\jre-1.8\lib\deploy\ffjcext.zip.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\Java\jre-1.8\lib\psfont.properties.ja.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_Subscription3-ul-oob.xrm-ms.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-crt-conio-l1-1-0.dll.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Net.Primitives.dll.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\Java\jre-1.8\bin\unpack200.exe.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\WordR_Trial-ul-oob.xrm-ms.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\de\System.Windows.Forms.Primitives.resources.dll.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-errorhandling-l1-1-0.dll.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\Microsoft Office\root\Client\concrt140.dll.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ko\UIAutomationClient.resources.dll.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pl\System.Windows.Controls.Ribbon.resources.dll.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\jdk\jpeg.md.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\Java\jre-1.8\legal\jdk\relaxngcc.md.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.IO.FileSystem.Primitives.dll.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PersonalPipcR_Grace-ppd.xrm-ms.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_OEM_Perp-ul-phn.xrm-ms.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Standard2019VL_KMS_Client_AE-ul.xrm-ms.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019R_Retail-ul-phn.xrm-ms.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Formats.Asn1.dll.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ru\Microsoft.VisualBasic.Forms.resources.dll.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-core-namedpipe-l1-1-0.dll.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusinessR_Retail-ul-phn.xrm-ms.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProCO365R_SubTest-pl.xrm-ms.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.AnalysisServices.Layout.dll.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Spatial.NetFX35.dll.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\Content.xml.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Text.Json.dll.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hans\System.Windows.Forms.Design.resources.dll.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_OEM_Perp4-ppd.xrm-ms.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\StandardVL_KMS_Client-ul-oob.xrm-ms.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\MSOUC_K_COL.HXK.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\7-Zip\Lang\ky.txt.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Drawing.dll.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ja\PresentationCore.resources.dll.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Colors\Blue II.xml.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Resources.Extensions.dll.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\tr\ReachFramework.resources.dll.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ko\System.Windows.Forms.Design.resources.dll.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\ExcelNaiveBayesCommandRanker.txt.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.reportviewer.winforms.dll.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.ComponentModel.DataAnnotations.dll.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\javafx\public_suffix.md.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_SubTrial1-pl.xrm-ms.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\Accessibility.dll.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\cs\PresentationFramework.resources.dll.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Word2019R_Retail-ppd.xrm-ms.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.pl-pl.dll.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Transactions.dll.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\D3DCompiler_47_cor3.dll.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\fa.pak.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\Java\jre-1.8\lib\security\trusted.libraries.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\SubsystemController.man.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\main\zh-phonetic.xml.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\Common Files\System\msadc\ja-JP\msadcor.dll.mui.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_SubTrial2-pl.xrm-ms.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OutlookR_Trial-ul-oob.xrm-ms.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Container.Loader.exe.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\.version.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Threading.Tasks.Parallel.dll.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\it\UIAutomationTypes.resources.dll.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-core-debug-l1-1-0.dll.tmp	3c06a5558d95f4a5ca91fd483320ef80N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-core-profile-l1-1-0.dll.tmp	3c06a5558d95f4a5ca91fd483320ef80N.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	3c06a5558d95f4a5ca91fd483320ef80N.exe

C:\Users\Admin\AppData\Local\Temp\3c06a5558d95f4a5ca91fd483320ef80N.exe
"C:\Users\Admin\AppData\Local\Temp\3c06a5558d95f4a5ca91fd483320ef80N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:1796

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-1-5-21-1194130065-3471212556-1656947724-1000\desktop.ini.tmp

Filesize
68KB

MD5
53501d8ad18231ad7a423f94e46e8c32

SHA1
d97f9803c0c7786d2ac7dfb921e29bbcf1cc77ed

SHA256
6b6b273f789e351daf03a8f08844f6cf030c51f047f783801cccba796e19d65c

SHA512
fc6a656a129d58e0ddf660e59245394a9a57d8ccd9c27f646b0ad41fa6afbb2dff0dd6073323c5c4cb614e72b84a7e5beb9ce404bf327bfe050701faebb536bb

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

Filesize
166KB

MD5
922cf2d615b2536922ef60424b4f94df

SHA1
eaf8b7f33f40a3fc8b2bb187c2853f5696670e36

SHA256
df7f7f051f3f3d04c893ce106feb6dbb209631817ed75e2cf79441ad2b551565

SHA512
0a010de5f610e024b787a112bfa0c9c2e5785eea0b95c9cc9c56da6ee34bf2d7594a4c04ae8dd2b918a57d886f4c1789c305a68701e0e248d9cc903dabd3db82

Download Submit
memory/1796-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1796-808-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download