3335340e6dd5536edd033eb5f6ef8c68f3790e751ff4fb18e5db3f173fa3eeba

Analysis

max time kernel
120s
max time network
93s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
11/09/2024, 06:17

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General

Target

f03cbb95f11885ffd1254051c2dc3620N.exe
Size

65KB
MD5

f03cbb95f11885ffd1254051c2dc3620
SHA1

12848c346c241b79de6234d99d6e8e71b2a8c597
SHA256

3335340e6dd5536edd033eb5f6ef8c68f3790e751ff4fb18e5db3f173fa3eeba
SHA512

ea1a976d6fdcd388080bba526f2d7cf0f75b6a91db4c21e398eb94db15b5a9c08a8dd4f90294c3bdcaec96699faf0ff75c61f69173f37d53d4077502a1df7431
SSDEEP

768:V7Blpf/FAK65euBT37CPKKQSjyJJ1EXBwzEXBwdcMcwBcCBcw/tio/ti4c6kjkw:V7Zf/FAxTWoJJ7TTQoQ4c6kjkw

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4661) 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/592-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000900000002347c-2.dat	upx
behavioral2/files/0x0014000000022912-6.dat	upx
behavioral2/memory/592-906-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProR_OEM_Perp-ppd.xrm-ms.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\System.Xaml.dll.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\Java\jre-1.8\bin\jli.dll.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_Subscription2-ul-oob.xrm-ms.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OutlookVL_KMS_Client-ppd.xrm-ms.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ja\System.Windows.Controls.Ribbon.resources.dll.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\Microsoft Office\Office16\OSPP.VBS.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_Retail2-ul-oob.xrm-ms.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Power Map Excel Add-in\DATATRANSFORMERWRAPPER.DLL.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSWORD.OLB.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\mip.exe.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Private.DataContractSerialization.dll.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\jdk\dynalink.md.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProfessionalR_OEM_Perp-pl.xrm-ms.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365BusinessR_Grace-ul-oob.xrm-ms.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_Subscription5-ul-oob.xrm-ms.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ja-JP\tabskb.dll.mui.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Security.Cryptography.X509Certificates.dll.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\gu.pak.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\Java\jre-1.8\lib\logging.properties.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\GR8GALRY.GRA.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\EduWorks Data Streamer Add-In\Microsoft.VisualStudio.Tools.Applications.Runtime.dll.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\mshwLatin.dll.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Net.Requests.dll.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Resources.Reader.dll.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hant\System.Xaml.resources.dll.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\Java\jre-1.8\legal\jdk\mesa3d.md.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProO365R_SubTest-pl.xrm-ms.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdR_OEM_Perp-ul-oob.xrm-ms.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\keypad.xml.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_OEM_Perp-ul-oob.xrm-ms.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\7-Zip\Lang\ky.txt.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\Microsoft.Ink.dll.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ko\WindowsBase.resources.dll.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OneNoteR_Retail-ul-phn.xrm-ms.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\ExcelLogo.contrast-black_scale-100.png.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProVL_MAK-ppd.xrm-ms.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Threading.ThreadPool.dll.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Installer\chrmstp.exe.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_Retail3-pl.xrm-ms.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusE5R_SubTrial-ppd.xrm-ms.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\symbols\ea-sym.xml.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\Common Files\System\Ole DB\es-ES\oledb32r.dll.mui.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_SubTrial2-ul-oob.xrm-ms.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\Java\jre-1.8\bin\j2gss.dll.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-sysinfo-l1-1-0.dll.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Net.Mail.dll.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pl\System.Windows.Forms.Primitives.resources.dll.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\it\System.Windows.Forms.resources.dll.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-sysinfo-l1-1-0.dll.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\Java\jre-1.8\bin\glib-lite.dll.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\Java\jre-1.8\lib\deploy\messages_es.properties.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\Bibliography\Style\IEEE2006OfficeOnline.xsl.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\WinWordLogo.contrast-black_scale-140.png.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-crt-environment-l1-1-0.dll.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ko\System.Xaml.resources.dll.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\it\System.Windows.Forms.resources.dll.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\UIAutomationTypes.dll.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSOARIANEXT.DLL.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\OneNoteLogoSmall.contrast-white_scale-140.png.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OutlookR_Trial-pl.xrm-ms.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStd2019VL_MAK_AE-ul-phn.xrm-ms.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\ClientCapabilities.json.tmp	f03cbb95f11885ffd1254051c2dc3620N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hans\System.Xaml.resources.dll.tmp	f03cbb95f11885ffd1254051c2dc3620N.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	f03cbb95f11885ffd1254051c2dc3620N.exe

C:\Users\Admin\AppData\Local\Temp\f03cbb95f11885ffd1254051c2dc3620N.exe
"C:\Users\Admin\AppData\Local\Temp\f03cbb95f11885ffd1254051c2dc3620N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:592

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-1-5-21-786284298-625481688-3210388970-1000\desktop.ini.tmp

Filesize
65KB

MD5
c655b40438501d62c5df170a11f17520

SHA1
e36a0445d4047f80efe210d236af8d4da49da579

SHA256
e4ecea3c829c7a613f17f7a72f012545056af7d492db60b49c562d7a18672c57

SHA512
408fca10f02276b88d0b2343f769200e8e55bdb986a8f6d074f4ec3e8137f42084aa8eb7b89564a7d69445be4901dfef7d7fc5099ad8c44c4701db386e55ce91

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

Filesize
164KB

MD5
e7387a0eeb589d132efe655755ac3392

SHA1
2cd256d12bcbc0370ee0d88a7ad1de0548784cad

SHA256
92871c0da668c4b6ac035a9bbf19c81fd9353aeeeacaa1d12f92b10c1db20885

SHA512
fe569b7de12bf85138b29be5e523cbb4ba513460dd64662d3f7a17fb19b9ddd8687ce47b29af3228b151f1db2ca78881841c0d453554020f551cbd81cf0d693f

Download Submit
memory/592-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/592-906-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download