54f177cbdc008f62e0cb1381ccb092aacd588b0898c588677d6bfa3008599b62

Analysis

max time kernel
120s
max time network
94s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
15/09/2024, 05:11

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General

Target

3f51b44254a3438bd242877dce747dd0N.exe
Size

71KB
MD5

3f51b44254a3438bd242877dce747dd0
SHA1

170c1384b56b44e64c192281af0203507ca0de5b
SHA256

54f177cbdc008f62e0cb1381ccb092aacd588b0898c588677d6bfa3008599b62
SHA512

0f18d6e67043a8c6917de218262dfe7c610e01fb2962cac0b45a334c5cff28545a6f2c6a1c05eef1ccc4845adfee53feb6bf49bf34f16dea8c243d936e09d816
SSDEEP

768:V7Blpf/FAK65euBT37CPKKQSjyJJ1EXBwzEXBwdcMcI9AiOivBT37CPKKdJJ1EX5:V7Zf/FAxTWoJJ7TlTW7JJ7T4

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4632) 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/1804-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x00090000000233d9-2.dat	upx
behavioral2/files/0x0014000000022913-6.dat	upx
behavioral2/memory/1804-902-0x0000000000400000-0x000000000040B000-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.Xml.XmlSerializer.dll.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Xml.ReaderWriter.dll.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pt-BR\PresentationUI.resources.dll.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Fonts\Garamond-TrebuchetMs.xml.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudent2019R_Trial-pl.xrm-ms.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\EXCEL.VisualElementsManifest.xml.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\7-Zip\Lang\nl.txt.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\msvcr120.dll.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\hwrlatinlm.dat.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ipshrv.xml.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hans\UIAutomationClientSideProviders.resources.dll.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hant\System.Windows.Controls.Ribbon.resources.dll.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdCO365R_Subscription-ul-oob.xrm-ms.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pl\System.Windows.Forms.Design.resources.dll.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-core-rtlsupport-l1-1-0.dll.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365BusinessR_Subscription-ul-oob.xrm-ms.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PowerPointR_Retail-ul-phn.xrm-ms.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdVL_KMS_Client-ul-oob.xrm-ms.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ipskor.xml.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_Subscription2-ul-oob.xrm-ms.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019XC2RVL_KMS_ClientC2R-ul.xrm-ms.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProO365R_Subscription-ppd.xrm-ms.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\uk\msipc.dll.mui.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\es\System.Windows.Forms.Design.resources.dll.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\sw.pak.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-crt-string-l1-1-0.dll.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudent2019R_OEM_Perp-ppd.xrm-ms.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Core.dll.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.IO.Compression.Native.dll.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Text.Encoding.CodePages.dll.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\cs\System.Windows.Forms.Design.resources.dll.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Personal2019R_Retail-ul-phn.xrm-ms.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hant\WindowsBase.resources.dll.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ru\UIAutomationClientSideProviders.resources.dll.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_OEM_Perp5-pl.xrm-ms.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\CLVIEW.EXE.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSQRY32.EXE.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\7-Zip\Lang\ms.txt.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Security.Cryptography.Algorithms.dll.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_O16EnterpriseVL_Bypass30-ul-oob.xrm-ms.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ja\System.Windows.Forms.resources.dll.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\javafx\webkit.md.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_Subscription1-ul-oob.xrm-ms.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ja-JP\TipRes.dll.mui.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\javap.exe.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Professional2019R_Retail-ppd.xrm-ms.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\it\System.Windows.Controls.Ribbon.resources.dll.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\sspi_bridge.dll.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\ssvagent.exe.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\Java\jdk-1.8\lib\deployment.config.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\Java\jre-1.8\lib\deploy\[email protected]	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Outlook2019VL_MAK_AE-ppd.xrm-ms.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PowerPoint2019R_Retail-pl.xrm-ms.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusinessR_Retail-ul-phn.xrm-ms.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Standard2019R_Trial-ul-oob.xrm-ms.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStd2019R_Retail-ul-phn.xrm-ms.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Data.Common.dll.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Globalization.dll.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\tr\WindowsBase.resources.dll.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\fa.pak.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\lt.pak.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\Microsoft Office\root\Client\api-ms-win-crt-environment-l1-1-0.dll.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Effects\Subtle Solids.eftx.tmp	3f51b44254a3438bd242877dce747dd0N.exe
File created	C:\Program Files\7-Zip\Lang\ku.txt.tmp	3f51b44254a3438bd242877dce747dd0N.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	3f51b44254a3438bd242877dce747dd0N.exe

C:\Users\Admin\AppData\Local\Temp\3f51b44254a3438bd242877dce747dd0N.exe
"C:\Users\Admin\AppData\Local\Temp\3f51b44254a3438bd242877dce747dd0N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:1804

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
71KB

MD5
67da48a334ed753e8af6407921ddd036

SHA1
d218fc3c1d5226ca9ba39a4253dc1f79a1a2b9e0

SHA256
10550bba7558f7f212f3a764fe4708dfa7eb1c86f9c6cfdde33e671728565b7b

SHA512
23bff14a7674364731e75c1d4543b48954c6af24c236474ecaace8e137091384126e39b25c84cf32ed2557820f7ecc040b309475db9009491507cb5604442a9b

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

Filesize
170KB

MD5
bf5dbb291d8dcce8ebd66088f1e911f0

SHA1
cbd0b436cb119234b0e6d6342bb12a32587cbd3a

SHA256
1eaf66337e93b0edc9f4dead9e423035ac8f032b2978e926b5e8e4aaec68704f

SHA512
94865befce974c71f2e46c4d19403d1a83131b4770645c418f7b256acd2a35a49f9594064b16c289ae7d5c899c14cdd980d070d3cab08250ce0cd249daa60b70

Download Submit
memory/1804-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1804-902-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download