a84f489740909ac4a9d1b15fed0513c2a888154c73479c81a8b0895650d1495f

Analysis

max time kernel
119s
max time network
117s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
16/08/2024, 23:12

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General

Target

1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
Size

30KB
MD5

1aa2ef4b7bf33d9258ef7d7e6fdf4040
SHA1

70a0e7c7618af9c9094d1badbc6f6ab8d789a816
SHA256

a84f489740909ac4a9d1b15fed0513c2a888154c73479c81a8b0895650d1495f
SHA512

4fea859cdc2c86ed4f48d5e8fbe4291a424bc5268e5e21e5f6fa1551d36e66534571aebe05b7ef37aca93c7a23a723cf3627a0b57d591d265404e260de216bdd
SSDEEP

768:kBT37CPKKdJJcbQbf1Oti1JGBQOOiQJhATNyQYz:CTW7JJZENTNyQYz

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4655) 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/1536-0-0x0000000000400000-0x000000000040A000-memory.dmp	upx
behavioral2/files/0x00090000000233f4-2.dat	upx
behavioral2/files/0x0014000000022936-6.dat	upx
behavioral2/memory/1536-907-0x0000000000400000-0x000000000040A000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\it\System.Windows.Forms.resources.dll.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\PresentationFramework.Classic.dll.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_OEM_Perp-ul-phn.xrm-ms.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\System.Security.Cryptography.ProtectedData.dll.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\Java\jre-1.8\bin\jdwp.dll.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\Microsoft Office\root\Integration\C2RManifest.DCF.DCF.x-none.msi.16.x-none.xml.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OutlookVL_MAK-pl.xrm-ms.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\ca\msipc.dll.mui.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Xml.Linq.dll.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Private.Xml.dll.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\de\System.Windows.Forms.resources.dll.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\cs\WindowsBase.resources.dll.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\Java\jre-1.8\bin\plugin2\npjp2.dll.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProR_Retail2-pl.xrm-ms.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_PrepidBypass-ul-oob.xrm-ms.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Publisher2019R_Grace-ppd.xrm-ms.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.ComponentModel.EventBasedAsync.dll.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PublisherR_Retail-pl.xrm-ms.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\Java\jre-1.8\lib\meta-index.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\Common Files\System\Ole DB\oledbvbs.inc.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\System.Windows.Presentation.dll.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_OEM_Perp3-ul-oob.xrm-ms.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSOUC.EXE.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\7-Zip\Lang\fr.txt.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\WindowsFormsIntegration.dll.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\StandardR_Retail-ppd.xrm-ms.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Xml.Serialization.dll.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pl\System.Windows.Forms.Primitives.resources.dll.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\vcruntime140.dll.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\fontconfig.bfc.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSOARIACAPI.DLL.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\sl.pak.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\clretwrc.dll.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\it\PresentationUI.resources.dll.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\fonts\LucidaTypewriterBold.ttf.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\Java\jre-1.8\lib\deploy\messages_ja.properties.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Container.exe.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\7-Zip\Lang\sa.txt.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-001B-0409-1000-0000000FF1CE.xml.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\Microsoft Office\root\Client\vccorlib140.dll.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdXC2RVL_KMS_ClientC2R-ul.xrm-ms.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ja\ReachFramework.resources.dll.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019R_PrepidBypass-ul-oob.xrm-ms.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Word2019R_OEM_Perp-ppd.xrm-ms.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\EduWorks Data Streamer Add-In\DataStreamerLibrary.dll.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MEDIA\SUCTION.WAV.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\Microsoft Office\root\Integration\C2RManifest.OneNote.OneNote.x-none.msi.16.x-none.xml.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Fonts\Cambria.xml.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_OEM_Perp3-ppd.xrm-ms.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Storage.XmlSerializers.dll.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Diagnostics.Tracing.dll.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-core-handle-l1-1-0.dll.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\Java\jre-1.8\bin\prism_d3d.dll.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentR_OEM_Perp-ul-phn.xrm-ms.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\pkeyconfig-office.xrm-ms.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\eu\msipc.dll.mui.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Reflection.Metadata.dll.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\WindowsAccessBridge-64.dll.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\client-issuance-root.xrm-ms.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Diagnostics.TraceSource.dll.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\Java\jre-1.8\lib\cmm\sRGB.pf.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Access2019R_Retail-ul-oob.xrm-ms.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\api-ms-win-crt-private-l1-1-0.dll.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ODBC Drivers\Redshift\lib\sbicudt53_64.dll.tmp	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.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	1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe

C:\Users\Admin\AppData\Local\Temp\1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe
"C:\Users\Admin\AppData\Local\Temp\1aa2ef4b7bf33d9258ef7d7e6fdf4040N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:1536

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-1-5-21-2412658365-3084825385-3340777666-1000\desktop.ini.tmp

Filesize
31KB

MD5
64b497fb36b47da0db834ffa6599a278

SHA1
5da13490e4b5b051cbf15add332a6330fa292972

SHA256
57eabbf309712360bd5e69f25912c1015487e7a1f2b024270cdf5aa343e39ed7

SHA512
235aa1cf7b9268f419c11fe3d601caf2e7fd3bddfaa1024cc9ee18e37528cbba18e1264a67241b1508be3738c2ee0cf6b9592090a99fa79d07d6986e3650fcc6

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

Filesize
129KB

MD5
6f486748139e06f610c787d920058440

SHA1
e7c1a5bc40873d9a9aca5c4ea1b71b8fcdc9e036

SHA256
511c5453228d8e64f98d86995c37078ba793cdeef52001fb4587398206ebedf0

SHA512
3ec831e85d8fa4f092f4eca59b6fabc0e6f36c01d3e3db5201116438bdc56cc0a05a6af90e8b15e686d0daf6d1583e890f3e04c85536ebd0520afe0b0ade52be

Download Submit
memory/1536-0-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/1536-907-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download