4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6

Analysis

max time kernel
120s
max time network
94s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
19-09-2024 05:12

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General

Target

4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
Size

100KB
MD5

3ca1f3cc1671e8f8cb41153a1ba7f430
SHA1

31e3b47da80e6863179eae88a06d5f125ad3143a
SHA256

4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6
SHA512

72978196b6bb87ef8d0c09b00a33136731b58e2aa4cd5e8a63a668777d3f19c0d6fb072662c88357d6ede299b510bd63fa219fc1f67d958cca2bcf56b90c6b8a
SSDEEP

1536:V7Zf/FAxTWoJJ7TTQoQhaTW7JJ7TTQoQp:fny1oRh5oRp

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4482) 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/2324-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000800000002342a-2.dat	upx
behavioral2/files/0x00040000000228de-6.dat	upx
behavioral2/memory/2324-848-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\es\UIAutomationProvider.resources.dll.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentR_Retail-ul-phn.xrm-ms.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTest3-ul-oob.xrm-ms.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Outlook2019R_Retail-ul-oob.xrm-ms.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\ONENOTE_COL.HXT.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\EduWorks Data Streamer Add-In\Microsoft.VisualStudio.Tools.Applications.Runtime.dll.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-rtlsupport-l1-1-0.dll.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Drawing.Common.dll.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudent2019R_OEM_Perp-ul-phn.xrm-ms.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Publisher2019VL_MAK_AE-ul-oob.xrm-ms.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProO365R_Subscription-pl.xrm-ms.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-crt-conio-l1-1-0.dll.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Collections.NonGeneric.dll.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\elevation_service.exe.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\Java\jre-1.8\lib\management\jmxremote.access.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdR_OEM_Perp-ppd.xrm-ms.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.DataIntegration.FuzzyMatchingCommon.dll.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\BORDERS\MSART7.BDR.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ko\UIAutomationClient.resources.dll.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\jdeps.exe.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-0018-0409-1000-0000000FF1CE.xml.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudent2019R_Trial-ul-oob.xrm-ms.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdVL_KMS_Client-ul.xrm-ms.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdVL_MAK-ul-oob.xrm-ms.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-crt-string-l1-1-0.dll.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdVL_MAK-ul-phn.xrm-ms.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\de-DE\InkObj.dll.mui.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\Common Files\System\ado\msador28.tlb.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Excel2019R_Trial-ul-oob.xrm-ms.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessPipcR_OEM_Perp-ul-oob.xrm-ms.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Outlook2019VL_KMS_Client_AE-ul-oob.xrm-ms.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-crt-heap-l1-1-0.dll.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\es-ES\tabskb.dll.mui.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\Microsoft Office\root\Client\vccorlib140.dll.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_ViewOnly_ZeroGrace-ul-oob.xrm-ms.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProVL_KMS_Client-ppd.xrm-ms.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusinessR_Retail-ul-oob.xrm-ms.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.ms-my.dll.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Security.Cryptography.Algorithms.dll.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Security.Cryptography.Algorithms.dll.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\Internet Explorer\de-DE\iexplore.exe.mui.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\Configuration\card_expiration_terms_dict.txt.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ShapeCollector.exe.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\Java\jre-1.8\bin\javacpl.cpl.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\DataServices\+Connect to New Data Source.odc.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-synch-l1-2-0.dll.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-rtlsupport-l1-1-0.dll.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\Java\jdk-1.8\include\jvmti.h.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\Microsoft Office\root\Office15\pkeyconfig-office.xrm-ms.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ru\Microsoft.VisualBasic.Forms.resources.dll.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\Java\jre-1.8\lib\javafx.properties.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\Microsoft Office\root\Client\api-ms-win-core-file-l2-1-0.dll.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProVL_MAK-ul-phn.xrm-ms.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStd2019VL_KMS_Client_AE-ppd.xrm-ms.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\main\baseAltGr_rtl.xml.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Xml.XPath.dll.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Word2019R_OEM_Perp-pl.xrm-ms.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_SubTest2-ppd.xrm-ms.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\tr\UIAutomationProvider.resources.dll.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\UIAutomationClientSideProviders.dll.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hans\PresentationCore.resources.dll.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\vcruntime140_1.dll.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentR_Retail-pl.xrm-ms.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentR_Trial2-pl.xrm-ms.tmp	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.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	4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe

C:\Users\Admin\AppData\Local\Temp\4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe
"C:\Users\Admin\AppData\Local\Temp\4dbcf066df1e275e64b1cb3b095432b2060b69920e4a48702fce4af28e4a98d6N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:2324

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-1-5-21-2718105630-359604950-2820636825-1000\desktop.ini.tmp

Filesize
100KB

MD5
fa9244fcf9da65e3e93908dea450c11a

SHA1
d64fb0619305dcbdb0b5614e68575dfa6eb87f99

SHA256
94944dd995bb8903a877ec53f0cd74494119a7806ac3b09753c872ff5999c8f3

SHA512
529d3089457706cf8ab841ebe14051e367a38b615c7073e6bb5e920352360070f9024fd63e1a7afcf32d196b54fc4a1f7e1df0e84b207aced4be6779693f94df

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

Filesize
199KB

MD5
fca434c9a5b7ef60f3e79635cbc6417c

SHA1
448929e35e93b2fc6ad799b1f46d87a8cb930e97

SHA256
fb34b7b4b69342a64dc9c25b564a12fd807a79c44704ab62d1cedcd7df52be91

SHA512
f2c9693f1b84593b45ac95807dcd03971be7da3a327e204b151e5f02585a103e69bd81888f6380f7b0e51b9c7a7749eaec422f7faba914b93b440cdbac8377f9

Download Submit
memory/2324-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2324-848-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download