77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354b

Analysis

max time kernel
120s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
25/09/2024, 08:50

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General

Target

77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
Size

79KB
MD5

b260fb453d101b7746607ac5157fd260
SHA1

cec54c4fb506b99a36ebd6fe1b72765c8757f330
SHA256

77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354b
SHA512

be351da6a256f5a1dbecf23cc6dc9836ec5215585d95f3d599568efdbf8cdba088ea8219f6df9932bb47d60652fb5e78bbed4d9a7098e1298702d6c32a9cbad3
SSDEEP

1536:V7Zf/FAxTWY1++PJHJXA/OsIZfzc3/Q8IZTrQTCuCR:fnyiQSo7ZNvR

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4535) 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/1920-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x00090000000233da-2.dat	upx
behavioral2/files/0x0014000000022936-6.dat	upx
behavioral2/memory/1920-860-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\microsoft shared\ink\de-DE\TipRes.dll.mui.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ru\PresentationCore.resources.dll.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\Java\jre-1.8\bin\jfr.dll.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\Microsoft Office\root\Client\api-ms-win-crt-environment-l1-1-0.dll.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\7-Zip\Lang\be.txt.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Formats.Asn1.dll.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\Microsoft.WindowsDesktop.App.deps.json.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\Java\jdk-1.8\include\win32\jni_md.h.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\ext\jaccess.jar.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019R_Retail-ul-phn.xrm-ms.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\tabskb.dll.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\Common Files\System\ado\adojavas.inc.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Net.NetworkInformation.dll.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\System.Xaml.dll.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\nio.dll.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_OEM_Perp-ppd.xrm-ms.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusE5R_SubTrial-ppd.xrm-ms.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.it-it.dll.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\PenImc_cor3.dll.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\Java\jre-1.8\bin\plugin2\vcruntime140.dll.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.ComponentModel.Primitives.dll.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ko\WindowsBase.resources.dll.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pt-BR\System.Windows.Forms.Design.resources.dll.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\Internet Explorer\SIGNUP\install.ins.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\Java\jre-1.8\bin\jawt.dll.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoVL_MAK-ppd.xrm-ms.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdR_OEM_Perp-pl.xrm-ms.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\Common Files\microsoft shared\Source Engine\OSE.EXE.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Threading.Thread.dll.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ru\PresentationFramework.resources.dll.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\Java\jre-1.8\bin\jli.dll.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\Java\jre-1.8\legal\javafx\icu_web.md.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifestLoc.16.en-us.xml.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_SubTrial3-ppd.xrm-ms.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_O16ConsumerPerp_Bypass30-ul-oob.xrm-ms.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Diagnostics.DiagnosticSource.dll.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Text.Encoding.dll.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\fr\UIAutomationClient.resources.dll.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\PresentationFramework.Aero.dll.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\am.pak.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\asm.md.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProO365R_SubTest-ul-oob.xrm-ms.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\ClientARMRefer_eula.txt.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hant\UIAutomationClient.resources.dll.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\Java\jdk-1.8\bin\jstatd.exe.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_OEM_Perp2-pl.xrm-ms.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ja\Microsoft.VisualBasic.Forms.resources.dll.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\Microsoft.Win32.Registry.AccessControl.dll.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusinessVL_KMS_Client-ul.xrm-ms.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdO365R_Subscription-pl.xrm-ms.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\PowerPntLogoSmall.contrast-black_scale-80.png.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ipshrv.xml.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\de\PresentationUI.resources.dll.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\tr\System.Windows.Forms.resources.dll.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019XC2RVL_KMS_ClientC2R-ppd.xrm-ms.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProCO365R_SubTest-ppd.xrm-ms.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Reflection.Metadata.dll.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\UIAutomationProvider.dll.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hans\Microsoft.VisualBasic.Forms.resources.dll.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\nl.pak.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\Internet Explorer\it-IT\ieinstal.exe.mui.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProfessionalDemoR_BypassTrial180-ppd.xrm-ms.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProVL_MAK-ul-oob.xrm-ms.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Diagnostics.Debug.dll.tmp	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.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	77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe

C:\Users\Admin\AppData\Local\Temp\77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe
"C:\Users\Admin\AppData\Local\Temp\77f5edeb644d5f43b372f6a78f67bafb2e15bfd152845614aad5adab471a354bN.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:1920

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
80KB

MD5
acf0d642fa928f652978d5c7f9e42a20

SHA1
31352ea9f994012a36ff3d582781ee8055cc1485

SHA256
1a2e89f797041892719fa40f5b83da4f4e72259437fc9670c5f0160475df046b

SHA512
4d4dbf9192b449b946d82dc530d6b312dc65c7d15400a91e46ad77c1e256fa6cc9751f51daf2cf440a018cf61fa1fd88efd55d1314beccc2a55ec1a5f0c95387

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

Filesize
178KB

MD5
1c05455f4ec08d33c4edfc9a0ced9816

SHA1
0e1b7bf008286f37d57786e634a5417ca4d41927

SHA256
01dafe4a8344fd2f52ebea70626bf9c07bf5c535febd3f8fe1d65277414f8132

SHA512
6bb27c3c1c2f371aa1c84b695e3d7a16e33e823b7f63130d6ffbd8dd874479ebb88105966e4798e8d95759d2451cad96582df959df46c305bf8b4e666cbb4a97

Download Submit
memory/1920-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1920-860-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download