35ca64189dc9d6d1fa89ca72d60a7629fac6089a03040f9a168f1acd2e3a7b93

Analysis

max time kernel
120s
max time network
107s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
18/08/2024, 16:04

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General

Target

4761d0e7f7a3fe5b2844b6de229542d0N.exe
Size

58KB
MD5

4761d0e7f7a3fe5b2844b6de229542d0
SHA1

59c1866fd389b910088cd880bde809df5f58fcec
SHA256

35ca64189dc9d6d1fa89ca72d60a7629fac6089a03040f9a168f1acd2e3a7b93
SHA512

87aca8d0c36673742d04b6eb4147254cb620327b691a7be536bfca90976735f403f14067fc856e9ec0869449f7cef5e4f12b5bc080a07a64c12c2dbb38d46c45
SSDEEP

768:V7Blpf/FAK65euBT37CPKKQSjyJJ1EXBwzEXBwdcMcwBcCBcw/tio/ti+7+7C:V7Zf/FAxTWoJJ7TTQoQ+aO

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4621) 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/1352-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x00090000000233ea-2.dat	upx
behavioral2/files/0x0014000000022936-6.dat	upx
behavioral2/memory/1352-856-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\tr\PresentationUI.resources.dll.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\AccessVL_KMS_Client-ul-oob.xrm-ms.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Publisher2019R_OEM_Perp-pl.xrm-ms.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\PowerPntLogo.scale-180.png.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\Accessibility.dll.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\Java\jre-1.8\legal\jdk\pkcs11wrapper.md.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProXC2RVL_MAKC2R-ul-oob.xrm-ms.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.lv-lv.dll.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.IO.UnmanagedMemoryStream.dll.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\PSRCHLTS.DAT.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\WinWordLogo.contrast-white_scale-100.png.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\Common Files\microsoft shared\MSInfo\msinfo32.exe.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\PresentationFramework.dll.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-core-synch-l1-1-0.dll.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019VL_MAK_AE-ul-oob.xrm-ms.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\da\msipc.dll.mui.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.ObjectModel.dll.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Security.AccessControl.dll.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Security.Cryptography.dll.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\de\System.Windows.Forms.Design.resources.dll.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OutlookR_Retail-ul-phn.xrm-ms.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\7-Zip\Lang\ga.txt.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-crt-private-l1-1-0.dll.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\zh-CN.pak.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\Bibliography\Style\GB.XSL.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\uk-UA\TipRes.dll.mui.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Access2019R_OEM_Perp-ppd.xrm-ms.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Publisher2019R_Retail-ppd.xrm-ms.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.WindowsAzure.StorageClient.dll.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pt-BR\UIAutomationTypes.resources.dll.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTrial2-pl.xrm-ms.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Numerics.dll.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\LyncVDI_Eula.txt.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.Excel.MDXQueryGenerator.dll.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\jfr.jar.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\javafx\webkit.md.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\Java\jre-1.8\lib\currency.data.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-0016-0409-1000-0000000FF1CE.xml.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.IO.Compression.FileSystem.dll.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fr-FR\TipRes.dll.mui.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\UIAutomationTypes.dll.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_SubTest-pl.xrm-ms.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\es-ES\tabskb.dll.mui.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pl\PresentationUI.resources.dll.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\PresentationFramework.Luna.dll.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-sysinfo-l1-1-0.dll.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-core-console-l1-1-0.dll.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_Trial-ul-oob.xrm-ms.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\ORGCHART.CHM.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\STSLIST.CHM.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\Common Files\System\Ole DB\sqlxmlx.dll.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\hi\msipc.dll.mui.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Data.OData.Query.NetFX35.dll.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Runtime.InteropServices.RuntimeInformation.dll.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Threading.Thread.dll.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.IO.dll.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ja\System.Xaml.resources.dll.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\it\UIAutomationClient.resources.dll.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\libGLESv2.dll.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\images\cursors\win32_MoveDrop32x32.gif.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Security.Cryptography.Csp.dll.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\prism_d3d.dll.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTrial3-ppd.xrm-ms.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdR_OEM_Perp-ul-oob.xrm-ms.tmp	4761d0e7f7a3fe5b2844b6de229542d0N.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	4761d0e7f7a3fe5b2844b6de229542d0N.exe

C:\Users\Admin\AppData\Local\Temp\4761d0e7f7a3fe5b2844b6de229542d0N.exe
"C:\Users\Admin\AppData\Local\Temp\4761d0e7f7a3fe5b2844b6de229542d0N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:1352

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
59KB

MD5
e85dc4e56a4a51afcff6d830fe322a4e

SHA1
73197b266fe3119c2e125eaa275165e1e6cbf590

SHA256
3c16b5b7c3a6deccf78cc0d527fd325d59f82f52cdea536b2a907e3a8365b151

SHA512
14b4f5ccc93eb7b2922923d4ac8ea90f2fea2895e7b223021ad91685972d23996d7088c1f5676fdd12b5a16430f027b195642d1d0a0c16893f91f776b8c74d0d

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

Filesize
157KB

MD5
abfc1bb918db41cab5fb6e89aafaac9d

SHA1
ada2e6d1715de30f67845b67f31f231d828f0378

SHA256
aeae36544cde45dec9a7b56b56124790ac5ecc42ffd3e67e4f38ffbfd4339213

SHA512
5a84fde4d7b40959dee31b7a01f6967e578069cdfb84e254d38bcf05d2c2770ad04e01dca53965e50d3949bf253a427914b93f1c40e5c0a39b7d2f28477740ae

Download Submit
memory/1352-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1352-856-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download