e4f46052e7c9b8f5ed5b8d6bec79e8bac139674821b0143f4dadbce8a9e68a05

Analysis

max time kernel
120s
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
06-09-2024 09:34

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General

Target

1b498492b59f04a816a835b7d5737370N.exe
Size

52KB
MD5

1b498492b59f04a816a835b7d5737370
SHA1

6d13c95b2d969388f80e51255fd83eed50a746d9
SHA256

e4f46052e7c9b8f5ed5b8d6bec79e8bac139674821b0143f4dadbce8a9e68a05
SHA512

1a49cedd602ee93cffa5dad60a822d79da1aa8823989a4e405956a39a17434790a689467b23321ed2d1c96debe9dbdc2b5c13e0d67c89b2d2373c72b1b3204e6
SSDEEP

768:V7Blpf/FAK65euBT37CPKKQSjyJJ1EXBwzEXBwdcMcI9RKc:V7Zf/FAxTWoJJ7TnKc

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4649) 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/2000-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000800000002345a-2.dat	upx
behavioral2/files/0x0014000000022936-6.dat	upx
behavioral2/memory/2000-900-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\OneNoteLogoSmall.contrast-white_scale-80.png.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\Common Files\System\ado\msado21.tlb.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Xml.XmlSerializer.dll.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ja\System.Windows.Forms.resources.dll.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusMSDNR_Retail-ppd.xrm-ms.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\Java\jre-1.8\legal\jdk\xerces.md.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\Microsoft Office\root\Integration\C2RManifest.Proof.Culture.msi.16.fr-fr.xml.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\el-GR\tipresx.dll.mui.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\oskpred.xml.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\Microsoft.DiaSymReader.Native.amd64.dll.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ko\UIAutomationClient.resources.dll.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\Java\jre-1.8\bin\jp2iexp.dll.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentVNextR_Retail-ul-oob.xrm-ms.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProCO365R_SubTrial-ppd.xrm-ms.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Word2019VL_MAK_AE-ul-phn.xrm-ms.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifestLoc.16.en-us.xml.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Colors\Green Yellow.xml.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Personal2019R_Trial-pl.xrm-ms.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Professional2019R_PrepidBypass-ppd.xrm-ms.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\7-Zip\Lang\ru.txt.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Threading.Thread.dll.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ru\ReachFramework.resources.dll.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\Java\jre-1.8\bin\jp2ssv.dll.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdR_Retail-ul-phn.xrm-ms.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdVL_MAK-ul-oob.xrm-ms.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019XC2RVL_MAKC2R-ppd.xrm-ms.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdO365R_SubTrial-ppd.xrm-ms.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Power Map Excel Add-in\MICROSOFT.DATA.RECOMMENDATION.CLIENT.CORE.DLL.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Text.Encodings.Web.dll.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\vcruntime140_cor3.dll.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTrial1-ppd.xrm-ms.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProfessionalDemoR_BypassTrial180-ul-oob.xrm-ms.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pl\System.Windows.Controls.Ribbon.resources.dll.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-crt-convert-l1-1-0.dll.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\Java\jre-1.8\lib\security\blacklist.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStd2019VL_MAK_AE-ul-oob.xrm-ms.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\7-Zip\Lang\ar.txt.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\Common Files\System\Ole DB\es-ES\sqlxmlx.rll.mui.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Drawing.Primitives.dll.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\cs\UIAutomationClientSideProviders.resources.dll.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\jdk\dom.md.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\Java\jre-1.8\lib\deploy\[email protected]	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-0018-0000-1000-0000000FF1CE.xml.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\msvcp140.dll.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.IO.FileSystem.DriveInfo.dll.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hant\PresentationUI.resources.dll.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-timezone-l1-1-0.dll.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\Configuration\card_expiration_terms_dict.txt.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\glib-lite.dll.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\Java\jre-1.8\lib\images\cursors\win32_LinkNoDrop32x32.gif.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\client-issuance-bridge-office.xrm-ms.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019R_PrepidBypass-ul-oob.xrm-ms.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProR_OEM_Perp-ppd.xrm-ms.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\AssertSearch.vst.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\hu-HU\tipresx.dll.mui.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\Microsoft.Win32.Registry.dll.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\prism_common.dll.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Professional2019R_OEM_Perp-pl.xrm-ms.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\cs\msipc.dll.mui.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\en-us\msipc.dll.mui.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Xml.Linq.dll.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\et.pak.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\main\baseAltGr_rtl.xml.tmp	1b498492b59f04a816a835b7d5737370N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ja-JP\InkObj.dll.mui.tmp	1b498492b59f04a816a835b7d5737370N.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	1b498492b59f04a816a835b7d5737370N.exe

C:\Users\Admin\AppData\Local\Temp\1b498492b59f04a816a835b7d5737370N.exe
"C:\Users\Admin\AppData\Local\Temp\1b498492b59f04a816a835b7d5737370N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:2000

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-1-5-21-2412658365-3084825385-3340777666-1000\desktop.ini.tmp

Filesize
53KB

MD5
8ca9c691e3dc48755080bf610a4a9717

SHA1
99dc5fd855146f645185cca3bdcb3ad24515f9de

SHA256
784304a3035c28b1ff32a98eef6d48c1719dd73b7540753bd005616abe86b2d2

SHA512
dfc599d71382ca82b92d5439726e4c4b286d070c60154dabbb17fb94a907ad9f77cebb7319ed617453144d429b5ea299ae9a9370aa6ee516fbba2be76886e7b0

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

Filesize
151KB

MD5
3505af8afb8459d6813c6695232f374e

SHA1
0e67b0133a93e815bb625dba826e2c03cb18eb95

SHA256
ab0526592495502f3859385fa6aa8002ac68316268192b935b1233dd8f3c8cba

SHA512
821043429526509b54303dd6627521adf0031a518dc7e9dd364bf148c9734654eb463cb34ffa07a7d6a85b9bbb68042cb0a0a9ced43cfc24cbf575ffd51d223d

Download Submit
memory/2000-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2000-900-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download