65a71939f6c255f5d80ac704f221139c295b3c97ebb8a33a8ef9a445e503ec72

Analysis

max time kernel
119s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
04/09/2024, 14:32

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General

Target

77a6ed903ebadbe6bad327b29f63b3a0N.exe
Size

56KB
MD5

77a6ed903ebadbe6bad327b29f63b3a0
SHA1

686de07179b89f0375c3e23c79e4288943f1d80b
SHA256

65a71939f6c255f5d80ac704f221139c295b3c97ebb8a33a8ef9a445e503ec72
SHA512

2fd5f6ec6974ff6a2d4ca6a6c0d4e85b16fd5bd5977f8873a0ee2853fd8816d8d1bf8cdb26f856b8db7fba4f2bca7a22e0cb9b2c0f68b3914243bd7dfc28fc5a
SSDEEP

768:V7Blpf/FAK65euBT37CPKKQSjyJJcbQbf1Oti1JGBQOOiQJhATNydWK9WKF9ADJt:V7Zf/FAxTWoJJZENTNyoKIKM/

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4673) 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/1060-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x00080000000234d0-2.dat	upx
behavioral2/files/0x000f000000022902-6.dat	upx
behavioral2/memory/1060-912-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\PresentationFramework.Aero2.dll.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hant\PresentationCore.resources.dll.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\pkcs11cryptotoken.md.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PersonalR_Grace-ppd.xrm-ms.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PersonalR_OEM_Perp-ul-phn.xrm-ms.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\libpng.md.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\keytool.exe.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\Java\jre-1.8\lib\ext\sunmscapi.jar.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Access2019R_Grace-ppd.xrm-ms.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\EduWorks Data Streamer Add-In\Microsoft.Office.Tools.Common.dll.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\Internet Explorer\uk-UA\ieinstal.exe.mui.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ExcelR_OEM_Perp-ppd.xrm-ms.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\7-Zip\Lang\ko.txt.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pt-BR\Microsoft.VisualBasic.Forms.resources.dll.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Effects\Glow Edge.eftx.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365BusinessR_Subscription-pl.xrm-ms.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\mscss7wre_en.dub.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\PowerPntLogo.contrast-black_scale-100.png.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pt-BR\System.Windows.Forms.Primitives.resources.dll.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\Java\jre-1.8\lib\deploy\messages_ja.properties.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Fonts\Calibri.xml.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdCO365R_SubTest-pl.xrm-ms.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Publisher2019R_OEM_Perp-ul-oob.xrm-ms.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProVL_KMS_Client-ppd.xrm-ms.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Client.Excel.Extensions.dll.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Collections.NonGeneric.dll.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\System.CodeDom.dll.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\Java\jre-1.8\lib\images\cursors\win32_LinkDrop32x32.gif.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-00E1-0409-1000-0000000FF1CE.xml.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdCO365R_Subscription-ul-oob.xrm-ms.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\Bibliography\Author2String.XSL.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Globalization.Calendars.dll.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\PresentationFramework.Luna.dll.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\cs\ReachFramework.resources.dll.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_SubTrial4-ppd.xrm-ms.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\Common Files\System\ado\adojavas.inc.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\fr\System.Windows.Forms.resources.dll.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\j2pkcs11.dll.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Dynamic.Runtime.dll.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Fonts\Calibri-Cambria.xml.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\tr\System.Windows.Input.Manipulations.resources.dll.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pt-BR\UIAutomationClientSideProviders.resources.dll.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\Java\jre-1.8\lib\fonts\LucidaBrightItalic.ttf.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019XC2RVL_MAKC2R-pl.xrm-ms.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\EntityPicker.dll.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\FirstRunLogoSmall.contrast-black_scale-80.png.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\deploy\messages_zh_HK.properties.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\Java\jre-1.8\lib\ext\sunjce_provider.jar.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\osknav.xml.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Runtime.Serialization.dll.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\jdk\icu.md.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Access2019R_OEM_Perp-ul-oob.xrm-ms.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_PrepidBypass-ul-oob.xrm-ms.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\7-Zip\Lang\si.txt.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\Common Files\System\msadc\it-IT\msdaprsr.dll.mui.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Numerics.Vectors.dll.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pl\WindowsFormsIntegration.resources.dll.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\kinit.exe.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\vcruntime140_1.dll.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\IFDPINTL.DLL.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\7-Zip\Lang\lt.txt.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hant\WindowsFormsIntegration.resources.dll.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\it\PresentationUI.resources.dll.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\mr.pak.tmp	77a6ed903ebadbe6bad327b29f63b3a0N.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	77a6ed903ebadbe6bad327b29f63b3a0N.exe

C:\Users\Admin\AppData\Local\Temp\77a6ed903ebadbe6bad327b29f63b3a0N.exe
"C:\Users\Admin\AppData\Local\Temp\77a6ed903ebadbe6bad327b29f63b3a0N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:1060

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-1-5-21-945322488-2060912225-3527527000-1000\desktop.ini.tmp

Filesize
56KB

MD5
bdd9b829d592ae40575fdcefcd21e917

SHA1
6e8160a5e601c3a89c1a29810099756f1edfbf60

SHA256
527a1fbe18fd5cab44b13a75d21e248e1e931a908de94ae4e2ae0709ef7076dd

SHA512
d15f3b386ab0aaef625b455743aeaaed6173ca2cf7a4c1a5cb3931d12e3bf8862f1d6a90298e9da2a095594172e925eb29fcca317859f0d6bb51d66e449a71a1

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

Filesize
155KB

MD5
79d0efcbaf810e9f3fa3a1b1b89ec801

SHA1
101033c4f9e2474b5b37b321527e73c43162bb4c

SHA256
5d44c99767d67cd466f0eaf85be015f33f4638d5a4bbdfdb871d84e3bbc96c81

SHA512
878cef0f0a82d23f73d4e9f1ab7e1231037b61adef00a408d8ed1125e910fde3404b76fd9ffab92d9d39d69a3ed94e8be79ab405f9cdb3620da716eb0b4c92c7

Download Submit
memory/1060-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1060-912-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download