3f774f46734ea1d7de3323e440fb12ecc47849eb45ffb20566bcabb21ed98f28

Analysis

max time kernel
120s
max time network
94s
platform
windows10-2004_x64
resource
win10v2004-20240730-en
resource tags

arch:x64arch:x86image:win10v2004-20240730-enlocale:en-usos:windows10-2004-x64system
submitted
01-08-2024 21:31

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General

Target

05c3bedf59c3fb4a50340aeb26840110N.exe
Size

75KB
MD5

05c3bedf59c3fb4a50340aeb26840110
SHA1

183744554de825d76ffd924b4105356bae2c02c7
SHA256

3f774f46734ea1d7de3323e440fb12ecc47849eb45ffb20566bcabb21ed98f28
SHA512

6e92ff60adb4eac41637ee2ad2a25c422912734a7d316ee3c5a32b58fd71e8ae5613f226e5765ae462624d8fe618e22200f41508f9e03a15403ff6b819937a2e
SSDEEP

1536:V7Zf/FAxTWoJJZENTNyoKIKen7bCCF4LRoE0oc9ztoLTfZD:fny1tE5KIKenxE07oF

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4637) 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/4728-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0009000000023403-2.dat	upx
behavioral2/files/0x0014000000022950-6.dat	upx
behavioral2/memory/4728-1896-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_Trial2-ppd.xrm-ms.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\Common Files\System\Ole DB\it-IT\sqloledb.rll.mui.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.IO.FileSystem.dll.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hans\UIAutomationTypes.resources.dll.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\management.dll.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\colorimaging.md.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\deploy\splash.gif.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-core-namedpipe-l1-1-0.dll.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\ExcelLogo.scale-140.png.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\sr-Cyrl-BA\msipc.dll.mui.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\cs\PresentationCore.resources.dll.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\jp2launcher.exe.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProXC2RVL_MAKC2R-ppd.xrm-ms.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusEDUR_Subscription-ppd.xrm-ms.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LivePersonaCard\images\default\linkedin_logo_small.png.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Numerics.dll.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Runtime.Serialization.Xml.dll.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\lcms.md.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\jdk\thaidict.md.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProO365R_SubTest-ul-oob.xrm-ms.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\ExcelLogo.contrast-white_scale-80.png.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.nl-nl.dll.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\Microsoft.VisualBasic.Forms.dll.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ko\UIAutomationClient.resources.dll.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\jinfo.exe.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\content-types.properties.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\Microsoft Office\root\Client\msvcr120.dll.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Fonts\Tw Cen MT-Rockwell.xml.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\Welcome.html.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\Java\jre-1.8\lib\management\snmp.acl.template.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-0090-0000-1000-0000000FF1CE.xml.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Power View Excel Add-in\Microsoft.Reporting.AdHoc.Shell.Bootstrapper.xap.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\de\UIAutomationTypes.resources.dll.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\System.Diagnostics.PerformanceCounter.dll.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\zip.dll.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Effects\Glow Edge.eftx.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Excel2019R_Retail-ppd.xrm-ms.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\ExcelNaiveBayesCommandRanker.txt.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\Common Files\System\msadc\es-ES\msadcer.dll.mui.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ja\Microsoft.VisualBasic.Forms.resources.dll.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\Java\jre-1.8\lib\ext\jfxrt.jar.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ExcelVL_MAK-ul-phn.xrm-ms.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusiness2019R_Trial-ppd.xrm-ms.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\7-Zip\Lang\sl.txt.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\it\WindowsFormsIntegration.resources.dll.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ru\UIAutomationClient.resources.dll.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProO365R_SubTrial-ul-oob.xrm-ms.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Power Map Excel Add-in\MICROSOFT.DATA.RECOMMENDATION.CLIENT.CORE.DLL.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\nl\msipc.dll.mui.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\jcmd.exe.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\Document Parts\1033\16\Built-In Building Blocks.dotx.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\7-Zip\Lang\ne.txt.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\mscordbi.dll.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Configuration.ConfigurationManager.dll.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ja\UIAutomationClientSideProviders.resources.dll.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\ExcelLogoSmall.contrast-white_scale-80.png.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\7-Zip\Lang\uz.txt.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\concrt140.dll.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\ConvertFromUpdate.cmd.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Diagnostics.Tools.dll.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\WindowsBase.dll.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\tr\System.Windows.Forms.resources.dll.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentR_Grace-ppd.xrm-ms.tmp	05c3bedf59c3fb4a50340aeb26840110N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\QuickStyles\casual.dotx.tmp	05c3bedf59c3fb4a50340aeb26840110N.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	05c3bedf59c3fb4a50340aeb26840110N.exe

C:\Users\Admin\AppData\Local\Temp\05c3bedf59c3fb4a50340aeb26840110N.exe
"C:\Users\Admin\AppData\Local\Temp\05c3bedf59c3fb4a50340aeb26840110N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:4728

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-1-5-21-195445723-368091294-1661186673-1000\desktop.ini.tmp

Filesize
75KB

MD5
8fc5a39f2a8d67b4e19761156d78cddc

SHA1
859a1a5e2132750111fb70d60aaaa335a6e6a54e

SHA256
bdf4ca16069d19131a81049dfbb8c7dcb8a476f4328df95230911e69821c1e08

SHA512
caa3c5ecc7e91d620589ad75c2efc4655c378a324511aee9a3a3476620a0dbd9f724955eab0f80716676759ea8b5ddd644214119ee5a69967a1fc3d146bcf1f4

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

Filesize
174KB

MD5
28cc623ea088daf32788503390141232

SHA1
237a061a0f8bbea83f32482f26065f1b92a9750d

SHA256
46302d3467011441d1aaf2037fffcab5566f46c87c8ba061d763e77f67c72384

SHA512
d87d962fc94ca679007d99421c82db1377a619d68aa3ca605a4b0d6e33ec067287399caa2318077aefb1937deb5111f099a6eaac23c14055da3a7eb1913587af

Download Submit
memory/4728-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4728-1896-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download