30b358c3abaf8a757285d02cd523afdc31ab3eac8bb82917c51b3b35b5637a39

Analysis

max time kernel
119s
max time network
108s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
05-09-2024 12:20

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General

Target

fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
Size

27KB
MD5

fbb84ceb67bff40bbd47b1dfe1e211a0
SHA1

23c006da0e9773436d17b49b30816995cec5011f
SHA256

30b358c3abaf8a757285d02cd523afdc31ab3eac8bb82917c51b3b35b5637a39
SHA512

ab4fcc89ceed7a1488fa9b983648351627b545c6cbafa62067e13f6db10dfc45efe0bba9c7a0f168e3ebed710df8fcff100399c8cf28e807009f1392bb867b9b
SSDEEP

768:kBT37CPKKdJJ1EXBwzEXBwdcMcI9HSXM2MN:CTW7JJ7T1Ss

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4680) 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/2700-0-0x0000000000400000-0x000000000040A000-memory.dmp	upx
behavioral2/files/0x00080000000234d5-2.dat	upx
behavioral2/files/0x0004000000022922-6.dat	upx
behavioral2/memory/2700-936-0x0000000000400000-0x000000000040A000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ru\System.Windows.Controls.Ribbon.resources.dll.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\javacpl.cpl.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Colors\Violet II.xml.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\msquic.dll.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Collections.Specialized.dll.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Net.NameResolution.dll.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hant\UIAutomationTypes.resources.dll.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\QuickStyles\Classic.dotx.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\EduWorks Data Streamer Add-In\Microsoft.Office.Tools.Common.dll.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\7-Zip\Lang\sr-spc.txt.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Diagnostics.FileVersionInfo.dll.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\fr\WindowsFormsIntegration.resources.dll.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ipscat.xml.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ipshe.xml.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\WidevineCdm\manifest.json.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019R_OEM_Perp-ul-oob.xrm-ms.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019XC2RVL_MAKC2R-ul-oob.xrm-ms.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\TellMeWord.nrr.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\am.pak.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\Java\jre-1.8\lib\ext\nashorn.jar.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\Microsoft Office\root\Client\api-ms-win-core-file-l2-1-0.dll.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\System.Diagnostics.EventLog.dll.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentVNextR_Retail-ul-phn.xrm-ms.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProfessionalR_OEM_Perp-ul-phn.xrm-ms.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\7-Zip\Lang\kk.txt.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\mscorrc.dll.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Xml.XmlSerializer.dll.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\netstandard.dll.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\de\UIAutomationTypes.resources.dll.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\AccessR_OEM_Perp-ppd.xrm-ms.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\StandardR_Retail-ul-oob.xrm-ms.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Power View Excel Add-in\Microsoft.Reporting.AdHoc.Shell.Bootstrapper.xap.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ja-JP\TipRes.dll.mui.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\Common Files\microsoft shared\VGX\VGX.dll.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\Common Files\System\Ole DB\sqlxmlx.dll.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\PresentationCore.dll.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\ext\sunmscapi.jar.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\jawt.dll.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Private.CoreLib.dll.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Numerics.Vectors.dll.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Runtime.Extensions.dll.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\OCSCLIENTWIN32.DLL.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\fr\System.Windows.Forms.Design.resources.dll.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\javafx\mesa3d.md.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019DemoR_BypassTrial180-ul-oob.xrm-ms.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\deploy\messages_it.properties.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\glass.dll.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_SubTrial3-pl.xrm-ms.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_O16EnterpriseVL_Bypass30-ppd.xrm-ms.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_Subscription-pl.xrm-ms.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_Subscription2-pl.xrm-ms.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\it\msipc.dll.mui.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.ru-ru.dll.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\fr\PresentationCore.resources.dll.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-0016-0000-1000-0000000FF1CE.xml.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pl\ReachFramework.resources.dll.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\Microsoft Office\root\Client\mfc140u.dll.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Outlook2019R_Grace-ul-oob.xrm-ms.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProO365R_SubTrial-ul-oob.xrm-ms.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2R64.dll.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Net.Security.dll.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Security.Cryptography.Algorithms.dll.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\cs\ReachFramework.resources.dll.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-interlocked-l1-1-0.dll.tmp	fbb84ceb67bff40bbd47b1dfe1e211a0N.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	fbb84ceb67bff40bbd47b1dfe1e211a0N.exe

C:\Users\Admin\AppData\Local\Temp\fbb84ceb67bff40bbd47b1dfe1e211a0N.exe
"C:\Users\Admin\AppData\Local\Temp\fbb84ceb67bff40bbd47b1dfe1e211a0N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:2700

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-1-5-21-355097885-2402257403-2971294179-1000\desktop.ini.tmp

Filesize
28KB

MD5
d4ad70ed61d1a5d7404bcba9e06dcbeb

SHA1
eab0996ed7bba1267826f2d37d724f2243110760

SHA256
3f4d73e8f2d87a808aca78cbf6bf458a60d913cb431f01c9f634e148fd6ae593

SHA512
d1322b2adff0e09e3c81d2d560225c840a7beebdafece12cfc63fe31a94d2ffef166a7850909311f51acdf03d8927709f59dc281ebf56dc91d73164f687ad1d7

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

Filesize
126KB

MD5
89f2ef71d1a22a9b9ce325f2d4a91075

SHA1
e6b86d05f6ba760912801fd6c649192e03d110ee

SHA256
069e381e4de851ac279077e7ff495804921666f21bfff3d1dc06da3b3fbc9574

SHA512
781e80dac6f1c371be00343520e39ec46ffb1a8269f0bec9d3642bd17853ae923a0b44823120092458e517f2e80d23fc484396a312e333591354de89ebcf1ae3

Download Submit
memory/2700-0-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/2700-936-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download