a7d0023c5b24e3c20ae406017580e1cfdfcd9fc7b9af21b5aeacf82d5c60ac21

Analysis

max time kernel
120s
max time network
98s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
26/07/2024, 13:46

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General

Target

15db2fe1d4e6cbf8b04b644d501a23e0N.exe
Size

45KB
MD5

15db2fe1d4e6cbf8b04b644d501a23e0
SHA1

a9d403e8685ff34171c00530f16d4454084d403c
SHA256

a7d0023c5b24e3c20ae406017580e1cfdfcd9fc7b9af21b5aeacf82d5c60ac21
SHA512

3948f9ce235d4bf4fe82a5b9957ba495b60e2372e3684aeaa6fb2cd20f4a54c85b675602f9808a2b057734d0a2c845b446fa6d8f481e458e7609b6309c65fa3a
SSDEEP

768:V7Blpf/FAK65euBT37CPKKQSjyJJBZBZaOAOIB3jM2jM7lN:V7Zf/FAxTWoJJB7LD2I2IH

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (3314) 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/1308-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0009000000023492-2.dat	upx
behavioral2/files/0x0014000000022905-6.dat	upx
behavioral2/memory/1308-1598-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.106\Locales\tr.pak.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_SubTrial-ul-oob.xrm-ms.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\7-Zip\Lang\nb.txt.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\it\UIAutomationClientSideProviders.resources.dll.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\images\cursors\win32_CopyNoDrop32x32.gif.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\Microsoft Office\root\fre\StartMenu_Win10_RTL.mp4.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.kk-kz.dll.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.106\VisualElements\SmallLogoBeta.png.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ExcelVL_MAK-pl.xrm-ms.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_OEM_Perp-pl.xrm-ms.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Security.SecureString.dll.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTest4-ul-oob.xrm-ms.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\uk-UA\TipRes.dll.mui.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\Common Files\microsoft shared\MSInfo\es-ES\msinfo32.exe.mui.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pt-BR\System.Windows.Forms.Primitives.resources.dll.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\System.Diagnostics.EventLog.Messages.dll.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\Java\jre-1.8\lib\security\cacerts.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pt-BR\WindowsBase.resources.dll.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-core-processthreads-l1-1-0.dll.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365BusinessR_SubTest-ul-oob.xrm-ms.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.106\Locales\mr.pak.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\sawindbg.dll.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Colors\Orange Red.xml.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OneNoteVL_KMS_Client-ul.xrm-ms.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\Common Files\System\de-DE\wab32res.dll.mui.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Net.WebSockets.Client.dll.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\wsgen.exe.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\calendars.properties.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudent2019R_Trial-ppd.xrm-ms.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\accessibility.properties.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Security.AccessControl.dll.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Security.Cryptography.Csp.dll.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ko\System.Windows.Forms.Primitives.resources.dll.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\Java\jdk-1.8\THIRDPARTYLICENSEREADME-JAVAFX.txt.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ko\System.Windows.Forms.Design.resources.dll.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-crt-heap-l1-1-0.dll.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\sspi_bridge.dll.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-file-l1-1-0.dll.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Reflection.Primitives.dll.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ja\System.Windows.Controls.Ribbon.resources.dll.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\es\PresentationFramework.resources.dll.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\prism_d3d.dll.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\javafx\jpeg_fx.md.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\Microsoft Office\root\Client\C2R64.dll.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.106\Locales\sr.pak.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\hostpolicy.dll.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Reflection.Emit.ILGeneration.dll.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\es\PresentationUI.resources.dll.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-crt-conio-l1-1-0.dll.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\jar.exe.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\javafx_font.dll.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\orbd.exe.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\Microsoft Office\root\Client\msvcp120.dll.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_SubTrial-pl.xrm-ms.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\javafx\libffi.md.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Organic.thmx.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\ExportEnable.m1v.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.106\Locales\en-US.pak.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\server\classes.jsa.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PersonalPipcR_OEM_Perp-ul-oob.xrm-ms.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Net.Quic.dll.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Xml.XPath.dll.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ja\PresentationCore.resources.dll.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-core-util-l1-1-0.dll.tmp	15db2fe1d4e6cbf8b04b644d501a23e0N.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	15db2fe1d4e6cbf8b04b644d501a23e0N.exe

C:\Users\Admin\AppData\Local\Temp\15db2fe1d4e6cbf8b04b644d501a23e0N.exe
"C:\Users\Admin\AppData\Local\Temp\15db2fe1d4e6cbf8b04b644d501a23e0N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:1308

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-1-5-21-2636447293-1148739154-93880854-1000\desktop.ini.tmp

Filesize
45KB

MD5
dedebf68fc9d70f6008c42fe5dbbb321

SHA1
726ebd235cc176dcc62e8a40260244948a111cc2

SHA256
587ea23b8de79acd64592360bd340c943fb44ddcdcef53a606bf744acdbde7fd

SHA512
3b85584a2e4f5e25fd48d5d507feb1c92b35bc8e993c40f3bf31ab95bce0a4abcbcc5cff8dea3b5825aa654dbc787a5bcc0a623002a58ee635bed757ee3eb147

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

Filesize
144KB

MD5
e22faf1297f8c6353ac7444d2160aa0f

SHA1
5e98a84f877f98022e9770914d31890f2d2eeb57

SHA256
0ad3341d2563c22751605d3d53ab30cff1e38788fa011151b95b387b5f5b1856

SHA512
59825b3840cdf830be428cc6292c2c4f6dfa96cbe634536020c77c3322b6ded9905a25cf06a6317ffc03f649b6aa1bd21d87c2f022ee11b61779eb535b7db718

Download Submit
memory/1308-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1308-1598-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download