bed910c93c060aa5b336a06b7715d2716bcb0060781c3c334869ebe9d1a9fa58

Analysis

max time kernel
120s
max time network
110s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
23/08/2024, 01:01

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General

Target

b92cb55b01e72326bcf4b7ecbf57ca20N.exe
Size

47KB
MD5

b92cb55b01e72326bcf4b7ecbf57ca20
SHA1

4a632d1b9775202cc6a6d06af5ae4b9b9cbe5419
SHA256

bed910c93c060aa5b336a06b7715d2716bcb0060781c3c334869ebe9d1a9fa58
SHA512

b435a285f641e85bf6b5d690f1c5dd6a19871d9007ba53fbbbf7778cc271a7c39e62c7946c719704dd78bc304a2df7c6c0ea761bc3bc1840485b356cb23ce556
SSDEEP

768:V7Blpf/FAK65euBT37CPKKQSjyJJ1EXBwzEXBwdcMcI9DJKGJKL:V7Zf/FAxTWoJJ7ThJKGJKL

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4652) 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/2716-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023493-2.dat	upx
behavioral2/files/0x0014000000022913-6.dat	upx
behavioral2/memory/2716-870-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Dynamic.Runtime.dll.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Net.Security.dll.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Text.Encoding.dll.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_OEM_Perp3-ul-oob.xrm-ms.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTrial1-ul-oob.xrm-ms.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdCO365R_Subscription-ul-oob.xrm-ms.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\Common Files\System\ado\msado26.tlb.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\Common Files\System\Ole DB\msdasql.dll.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\ONENOTE_WHATSNEW.XML.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_PrepidBypass-ul-oob.xrm-ms.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PublisherVL_MAK-pl.xrm-ms.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSOADFPS.DLL.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\instrument.dll.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\msotelemetryintl.dll.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hans\System.Windows.Controls.Ribbon.resources.dll.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\Java\jre-1.8\lib\images\cursors\win32_CopyDrop32x32.gif.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-00E2-0000-1000-0000000FF1CE.xml.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTrial5-ul-oob.xrm-ms.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStd2019R_Retail-ul-oob.xrm-ms.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ChakraCore.Debugger.dll.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\7-Zip\Lang\ta.txt.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Core.dll.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OutlookVL_KMS_Client-ul-oob.xrm-ms.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019R_Retail-pl.xrm-ms.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pl\Microsoft.VisualBasic.Forms.resources.dll.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-0018-0000-1000-0000000FF1CE.xml.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\th.pak.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\Java\jdk-1.8\lib\packager.jar.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusR_Retail-pl.xrm-ms.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProR_Retail2-ul-phn.xrm-ms.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Power Map Excel Add-in\WPFEXTENSIONS.DLL.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\GKExcel.dll.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\it\System.Windows.Forms.Primitives.resources.dll.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ko\ReachFramework.resources.dll.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\mscss7fr.dll.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\fr\UIAutomationClientSideProviders.resources.dll.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Windows.Extensions.dll.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\ecc.md.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\EduWorks Data Streamer Add-In\Microsoft.Office.Tools.Common.v4.0.Utilities.dll.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\BORDERS\MSART10.BDR.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\micaut.dll.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\System.Threading.AccessControl.dll.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\Library\SOLVER\SOLVER32.DLL.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Collections.Specialized.dll.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\zh-TW.pak.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\Microsoft Office\root\Client\C2R32.dll.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\en-US.pak.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-crt-runtime-l1-1-0.dll.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_SubTest2-ul-oob.xrm-ms.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProXC2RVL_MAKC2R-ul-oob.xrm-ms.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\hr\msipc.dll.mui.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\Common Files\microsoft shared\VSTO\10.0\1033\VSTOLoaderUI.dll.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Security.AccessControl.dll.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_OEM_Perp-pl.xrm-ms.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusR_OEM_Perp6-ul-oob.xrm-ms.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019R_OEM_Perp-ul-phn.xrm-ms.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Word2019R_Retail-ppd.xrm-ms.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\it\System.Xaml.resources.dll.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\jsdt.dll.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\System.Xaml.dll.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_OEM_Perp-ppd.xrm-ms.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\StandardR_Retail-pl.xrm-ms.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\7-Zip\Lang\de.txt.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.exe
File created	C:\Program Files\Common Files\microsoft shared\MSInfo\fr-FR\msinfo32.exe.mui.tmp	b92cb55b01e72326bcf4b7ecbf57ca20N.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	b92cb55b01e72326bcf4b7ecbf57ca20N.exe

C:\Users\Admin\AppData\Local\Temp\b92cb55b01e72326bcf4b7ecbf57ca20N.exe
"C:\Users\Admin\AppData\Local\Temp\b92cb55b01e72326bcf4b7ecbf57ca20N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:2716

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-1-5-21-656926755-4116854191-210765258-1000\desktop.ini.tmp

Filesize
47KB

MD5
9cead6945181d2d35a7d4549a2287ef5

SHA1
bdb917955a3257a7cf48e87eac9d6c3782909e88

SHA256
ed3bdf106aec4d875e81a669f82366a3ca9bdf95c91a23fec29a2d67d58cfc98

SHA512
2ba3ef2c64b31d40d8d8a7bc04d0d53d684acbd7b88a8f5a5dd3525b9db0a13ba069bc8dfb8d81e1fd0381d2b4bee6680d49cdec9342dff8cbb3978d409169dd

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

Filesize
146KB

MD5
4db6f48635729d3cff6f04b4bb7a71d3

SHA1
a2afdef3b2fa96b3a6f71e0758a852e39c72cf8e

SHA256
1e077c5ab9500d4f3f648d1745f68eb955de5e6b22e5a9361e29042078f21711

SHA512
a49af1a55694251c6a28c75b34869a7e32385a72c29e413b7d84c63135d858ec2288018522a8d515bff09e03b2b9eac94c6907c649bf5766ff32f78b96bbd3e0

Download Submit
memory/2716-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2716-870-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download