5b878dd638cebdc73449becafaec9509ade1bf9c48868c4906052f45d452c813

Analysis

max time kernel
120s
max time network
118s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
17/08/2024, 02:18

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General

Target

41eb75cb2a42507a93a531757d7c1f20N.exe
Size

152KB
MD5

41eb75cb2a42507a93a531757d7c1f20
SHA1

8891bfa083f37e4debd16f73c8a5f1457f6b92d3
SHA256

5b878dd638cebdc73449becafaec9509ade1bf9c48868c4906052f45d452c813
SHA512

a1b3dfa7bed3e29de1b16f87baf54d90465f92a92cbd1ffc3515341b1a7b61e69370abd158a84014e000c410d477e050a1eede1196a2a9f1c38317a74878cdb2
SSDEEP

1536:V7Zf/FAxTWY1++PJHJXA/OsIZfzc3/Q8+g9VyjVySlPdA3NyaM62ot2oxQW8:fnyiQSonPdA9yaMDT28

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4279) 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/724-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000900000002348e-2.dat	upx
behavioral2/files/0x000f000000022902-6.dat	upx
behavioral2/memory/724-796-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\microsoft shared\ink\nb-NO\tipresx.dll.mui.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ko\PresentationUI.resources.dll.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\j2pkcs11.dll.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdO365R_SubTest-pl.xrm-ms.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\7-Zip\Lang\cy.txt.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\Common Files\microsoft shared\VGX\VGX.dll.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Office Theme.thmx.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-string-l1-1-0.dll.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Security.Cryptography.dll.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Colors\Red Orange.xml.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\7-Zip\Lang\va.txt.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hant\System.Windows.Forms.Design.resources.dll.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\Java\jre-1.8\release.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PublisherR_Retail-pl.xrm-ms.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\EXCEL_K_COL.HXK.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\MSOUC_COL.HXC.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pl\System.Windows.Controls.Ribbon.resources.dll.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\PresentationUI.dll.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\zip.dll.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\c2rpridslicensefiles_auto.xml.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_Subscription3-pl.xrm-ms.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\EXCEL_F_COL.HXK.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\main\zh-changjei.xml.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\PresentationFramework.Luna.dll.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\Common Files\System\Ole DB\msxactps.dll.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\de\System.Windows.Forms.Design.resources.dll.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\Java\jre-1.8\legal\javafx\mesa3d.md.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProfessionalR_Trial-ppd.xrm-ms.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019XC2RVL_MAKC2R-ppd.xrm-ms.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\PSRCHSRN.DAT.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\es-ES\TipTsf.dll.mui.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\Java\jre-1.8\bin\javacpl.cpl.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdXC2RVL_MAKC2R-ul-oob.xrm-ms.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.IO.Compression.Brotli.dll.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\tr\PresentationUI.resources.dll.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-crt-time-l1-1-0.dll.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTrial3-pl.xrm-ms.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProO365R_SubTest-ppd.xrm-ms.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.OData.Core.NetFX35.V7.dll.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\7-Zip\Lang\kk.txt.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\7-Zip\readme.txt.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-crt-conio-l1-1-0.dll.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\deploy\splash_11-lic.gif.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\Java\jre-1.8\COPYRIGHT.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\QuickStyles\bwcapitalized.dotx.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\xerces.md.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\Java\jdk-1.8\lib\jvm.lib.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\Java\jdk-1.8\lib\orb.idl.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\Java\jre-1.8\bin\javafx_iio.dll.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\Microsoft Office\root\fre\StartMenu_Win10_RTL.mp4.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Standard2019R_Trial-ul-oob.xrm-ms.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\fr\PresentationCore.resources.dll.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\hijrah-config-umalqura.properties.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTest5-ppd.xrm-ms.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Container.NetFX40.exe.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\7-Zip\Lang\is.txt.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\en-US\TipRes.dll.mui.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Runtime.CompilerServices.VisualC.dll.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\es\UIAutomationClientSideProviders.resources.dll.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-util-l1-1-0.dll.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\Java\jre-1.8\bin\jsoundds.dll.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.hi-in.dll.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\Common Files\System\ado\msador28.tlb.tmp	41eb75cb2a42507a93a531757d7c1f20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PersonalR_Retail-pl.xrm-ms.tmp	41eb75cb2a42507a93a531757d7c1f20N.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	41eb75cb2a42507a93a531757d7c1f20N.exe

C:\Users\Admin\AppData\Local\Temp\41eb75cb2a42507a93a531757d7c1f20N.exe
"C:\Users\Admin\AppData\Local\Temp\41eb75cb2a42507a93a531757d7c1f20N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:724

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-1-5-21-945322488-2060912225-3527527000-1000\desktop.ini.tmp

Filesize
152KB

MD5
95616929b870841b4332a5e4347b3643

SHA1
7f621532d0120d27900f60295ac1202db9b18e59

SHA256
e528cc2a763cddf2f34d7d923b97c5d6a39d1b7332249d6a8d383345583e815a

SHA512
e5c56283bc7749e419db231cd6722a3c19c8ae7e3172b0a2d24f0dd6cbfa91e9bcff8932e290dab8caa39de5ae1eec620d9ef3050bdb195b8c2358776059b341

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

Filesize
251KB

MD5
348fba69699043827868ad3a382a6278

SHA1
5890875a55b140281592aabd226934cca481b7c8

SHA256
ab74add251cc88320b29a4acc92e375f2fcbdc3aee297d9f706bd3279a6f0a41

SHA512
c892e5a4e141473603b6939203b57a1c8ee0de5f5b817102de20213987bdf4cc75360ee960750fe4798ce94d2a37b62bf6e7ca17c75ee33cac1575121650739a

Download Submit
memory/724-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/724-796-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download