0bbb4752ff2e1f42bc65be3f0b3acc75c280aa39aaa625747b7f18600e66cb7e

Analysis

max time kernel
120s
max time network
107s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
25/08/2024, 20:19

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General

Target

bb8c4f50e02ee18acc4f8c9352bd7490N.exe
Size

70KB
MD5

bb8c4f50e02ee18acc4f8c9352bd7490
SHA1

5bc46faff40da31563e1da4003044cee7f5b5ffd
SHA256

0bbb4752ff2e1f42bc65be3f0b3acc75c280aa39aaa625747b7f18600e66cb7e
SHA512

545a04851ea591dbbad66909548d68e44114599a3529f94c4e6f90d3e269303eea97c0b4f91d852a3040925b80ca24d8034c46d37a63023d0ba033dbd8dca247
SSDEEP

768:V7Blpf/FAK65euBT37CPKKQSjyJJ1EXBwzEXBwdcMcwBcCBcw/tio/tirZcZja:V7Zf/FAxTWoJJ7TTQoQrZcZja

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4355) 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/3652-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0009000000023451-2.dat	upx
behavioral2/files/0x0014000000022913-6.dat	upx
behavioral2/memory/3652-804-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\microsoft shared\ink\ipscsy.xml.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-core-string-l1-1-0.dll.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\Java\jre-1.8\bin\jdwp.dll.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\Microsoft Office\root\Client\AppvIsvSubsystems32.dll.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\api-ms-win-core-localization-l1-2-0.dll.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\7-Zip\Lang\az.txt.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\main\baseAltGr_rtl.xml.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\j2pkcs11.dll.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\Java\jre-1.8\bin\java-rmi.exe.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdR_OEM_Perp-ul-phn.xrm-ms.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ko\ReachFramework.resources.dll.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\de.pak.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\it\System.Xaml.resources.dll.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\de\UIAutomationTypes.resources.dll.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_Trial2-pl.xrm-ms.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\StandardMSDNR_Retail-ul-oob.xrm-ms.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\th-TH\tipresx.dll.mui.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Runtime.CompilerServices.Unsafe.dll.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\Microsoft Office\root\Client\api-ms-win-crt-convert-l1-1-0.dll.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\de\UIAutomationTypes.resources.dll.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pt-BR\System.Windows.Forms.Design.resources.dll.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Excel2019VL_MAK_AE-pl.xrm-ms.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PersonalPipcR_Grace-ul-oob.xrm-ms.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\offsymk.ttf.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Net.WebSockets.Client.dll.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ru\System.Windows.Input.Manipulations.resources.dll.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\D3DCompiler_47_cor3.dll.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_SubTrial2-pl.xrm-ms.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStd2019R_OEM_Perp-ppd.xrm-ms.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\7-Zip\Lang\yo.txt.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\Common Files\microsoft shared\OFFICE16\LICLUA.EXE.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusinessVL_KMS_Client-ul.xrm-ms.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\System.Spatial.NetFX35.dll.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\msquic.dll.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusR_OEM_Perp2-ppd.xrm-ms.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hans\System.Windows.Forms.Primitives.resources.dll.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\santuario.md.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudent2019R_Grace-ppd.xrm-ms.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\Common Files\System\Ole DB\ja-JP\sqlxmlx.rll.mui.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\Common Files\System\Ole DB\sqloledb.rll.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\Common Files\System\msadc\msadcer.dll.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\ClientVolumeLicense_eula.txt.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_Subscription3-ul-oob.xrm-ms.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\7-Zip\Lang\ka.txt.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\cs\WindowsBase.resources.dll.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\t2k.dll.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusR_OEM_Perp6-ppd.xrm-ms.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\sl-SI\tipresx.dll.mui.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\de\System.Windows.Forms.Design.resources.dll.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\DataServices\FOLDER.ICO.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\7-Zip\7z.exe.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\Internet Explorer\ieinstal.exe.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Word2019R_Retail-ppd.xrm-ms.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Runtime.Extensions.dll.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\Java\jre-1.8\lib\currency.data.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\d3dcompiler_47.dll.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\Java\jre-1.8\lib\fontconfig.properties.src.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProR_Retail-ppd.xrm-ms.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdVL_KMS_Client-ul.xrm-ms.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fr-FR\TipTsf.dll.mui.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Runtime.CompilerServices.Unsafe.dll.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\Java\jre-1.8\lib\deploy\messages.properties.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\Microsoft Office\root\fre\StartMenu_Win7.wmv.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ExcelR_Retail-ul-oob.xrm-ms.tmp	bb8c4f50e02ee18acc4f8c9352bd7490N.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	bb8c4f50e02ee18acc4f8c9352bd7490N.exe

C:\Users\Admin\AppData\Local\Temp\bb8c4f50e02ee18acc4f8c9352bd7490N.exe
"C:\Users\Admin\AppData\Local\Temp\bb8c4f50e02ee18acc4f8c9352bd7490N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:3652

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
67a4e53c7f6a4da48c21813fb6305cb4

SHA1
b69263edf01f96b0554ee0fbae84f8df44734d71

SHA256
7e668a7d8df5ea9df5ff97b25c210ad94cce8a5697720f605d07e2c8f845f3b9

SHA512
486b338d95ef31c76689bf634326e6a434bd97329ae8a12a85c0447605a7bdd789082e165a2c73a08ce31817c8fb1d42823aeca5f511d6830cfb0ac3c5713404

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

Filesize
169KB

MD5
078280584c3114dbd64b885e89447879

SHA1
fca67376ccd04c890bcb746005f9c286ed500507

SHA256
484e79553cf004f26567ee8bf9a70a04a07a53c41eb176113643dc3262100026

SHA512
754555c497629d25faf800a9fd7ea6c8a876d61c163eade5dd97e6f26e2ee0948df8b3243c1338a28c0f656ddc7ef3f9588065a313e8d2159ad0e12f4626de3e

Download Submit
memory/3652-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3652-804-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download