4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92

Analysis

max time kernel
150s
max time network
127s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
13/09/2024, 21:30

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General

Target

4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
Size

99KB
MD5

20c3d053ee50b6208c910ffda68c65f4
SHA1

6edfffac1e360f14433f008c1117dfbc4df91d4c
SHA256

4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92
SHA512

2641ab80670dc80999b19cce8080e48da70bc5370ed6e37f8001bfbbb9171ad000d3da41444cf72ad09b438e31da25e94104d011183691bdb8b71e6aa7b03a8e
SSDEEP

1536:V7Zf/FAxTWY1++PJHJXA/OsIZfzc3/Q8asUsJOLKc/xJtLJtTGH1:fnyiQSohsUsUK/1

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4862) 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/4120-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0009000000023613-2.dat	upx
behavioral2/files/0x000600000001690a-6.dat	upx
behavioral2/memory/4120-810-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Java\jdk-1.8\jre\lib\deploy\messages_sv.properties.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\AccessVL_MAK-pl.xrm-ms.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudent2019R_OEM_Perp-ul-oob.xrm-ms.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ODBC Drivers\Redshift\lib\sbicuin53_64.dll.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hans\ReachFramework.resources.dll.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ko\PresentationUI.resources.dll.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-core-synch-l1-1-0.dll.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OutlookVL_MAK-ul-phn.xrm-ms.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PowerPointVL_KMS_Client-ul-oob.xrm-ms.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\EduWorks Data Streamer Add-In\DataStreamerLibrary.dll.config.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.sv-se.dll.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\af.pak.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\Java\jdk-1.8\include\jvmticmlr.h.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\de\System.Windows.Input.Manipulations.resources.dll.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\es\UIAutomationProvider.resources.dll.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\WinWordLogoSmall.contrast-white_scale-180.png.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\it\System.Windows.Controls.Ribbon.resources.dll.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\it\PresentationFramework.resources.dll.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PublisherVL_KMS_Client-ul.xrm-ms.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProfessionalR_Retail-ul-phn.xrm-ms.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\Microsoft Office\root\Office16\PROOF\MSSP7ES.LEX.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\en-US\mip.exe.mui.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\javafx\libxml2.md.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\deploy\messages_pt_BR.properties.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProCO365R_Subscription-ul-oob.xrm-ms.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\th\msipc.dll.mui.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\Microsoft Office\root\Office16\OSF.DLL.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Net.WebSockets.Client.dll.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pl\PresentationUI.resources.dll.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019R_Trial-ul-oob.xrm-ms.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019R_Grace-ppd.xrm-ms.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStd2019R_Retail-ppd.xrm-ms.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSOSYNC.EXE.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\Microsoft Office\root\Office16\PAGESIZE\PGLBL115.XML.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\Microsoft.DiaSymReader.Native.amd64.dll.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\ext\jaccess.jar.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_Trial-pl.xrm-ms.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ru\UIAutomationTypes.resources.dll.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hans\WindowsBase.resources.dll.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\Java\jre-1.8\COPYRIGHT.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\Microsoft Office\root\Office16\OUTLFLTR.DAT.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Data.DataSetExtensions.dll.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\it\PresentationUI.resources.dll.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\fr\System.Windows.Forms.resources.dll.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-file-l1-1-0.dll.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-crt-multibyte-l1-1-0.dll.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\Java\jre-1.8\lib\deploy\messages_it.properties.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentVNextR_Retail-ul-oob.xrm-ms.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MEDIA\VOLTAGE.WAV.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Xml.XmlDocument.dll.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Reflection.TypeExtensions.dll.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pl\UIAutomationClient.resources.dll.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ja\WindowsBase.resources.dll.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ja\UIAutomationProvider.resources.dll.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\npt.dll.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\rmid.exe.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\Java\jre-1.8\lib\security\blacklisted.certs.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\7-Zip\Lang\mr.txt.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-heap-l1-1-0.dll.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Drawing.dll.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\Microsoft Office\root\Integration\C2RManifest.Excel.Excel.x-none.msi.16.x-none.xml.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProfessionalR_Retail-pl.xrm-ms.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Outlook2019R_Trial-ul-oob.xrm-ms.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\tr\msipc.dll.mui.tmp	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.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	4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe

C:\Users\Admin\AppData\Local\Temp\4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe
"C:\Users\Admin\AppData\Local\Temp\4f139aa4b841700c2066896226e1560a49cc3325dc33fed2d255cc276a9b3d92.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:4120

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4160,i,10369132178352108590,11047993562598554317,262144 --variations-seed-version --mojo-platform-channel-handle=4188 /prefetch:8
1⤵
PID:544

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-1-5-21-2170637797-568393320-3232933035-1000\desktop.ini.tmp

Filesize
99KB

MD5
323a1af8ebb32b118c56f8b3e9035ee8

SHA1
2610ba5d031bd04bd3aae9aa28e4c743db50f19e

SHA256
e91d88d370f6a1717346d64f3a92cc93090477747239d5cc14b7a9d631cdd8cc

SHA512
a3bb12baef7485d625d3aa4208138ed332740433e2315c9eccf7398a834e16d19b83f90370f74a41c3103171bb2c9271d4d4b7a9795be3b1bbeb118910d11670

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

Filesize
211KB

MD5
28ab55c0a256c339d06fde5b0ffa83c8

SHA1
f5023ad4ea62d321e47ca7a8583054695be72545

SHA256
009f127f20af00183a40ddd829234bd3df9dc3fcd2c7788e685c4577182e987c

SHA512
2e016de26e085e782a086f6569df9e8db28cf55ae41acf9d87e844be6a37285713ddb1911034b0ae77bf08de549e4b5da800bffce79b511f2178c4f1fae9722e

Download Submit
memory/4120-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4120-810-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download