934ff80e6975a2bb443d570905146aaf5d9ead3efe72619ebd6dfbd94d88a783

Analysis

max time kernel
119s
max time network
103s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
18-08-2024 00:13

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General

Target

1790c4ec0c85cc3f3ae9f221807cd890N.exe
Size

35KB
MD5

1790c4ec0c85cc3f3ae9f221807cd890
SHA1

9201afaf685b5622d7197f6f0aa2f94d0ffd7373
SHA256

934ff80e6975a2bb443d570905146aaf5d9ead3efe72619ebd6dfbd94d88a783
SHA512

d78f8220a8a098f9e9f931eec98883b7d39556731a56121cba58ca8273eb55ce007e6246f5ced0750a5db459d6772d9d154d6ce28179a65e348096669f560555
SSDEEP

768:kBT37CPKKdJJ1EXBwzEXBwdcMcwBcCBcw/tio/tiw:CTW7JJ7TTQoQw

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4671) 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/1388-0-0x0000000000400000-0x000000000040A000-memory.dmp	upx
behavioral2/files/0x00090000000233bc-2.dat	upx
behavioral2/files/0x00040000000228f4-6.dat	upx
behavioral2/memory/1388-1002-0x0000000000400000-0x000000000040A000-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\de\PresentationFramework.resources.dll.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\hi.pak.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_Subscription4-pl.xrm-ms.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProR_Retail-pl.xrm-ms.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\PSRCHLEX.DAT.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\GKPowerPoint.dll.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_SubTrial2-pl.xrm-ms.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProO365R_SubTest-ul-oob.xrm-ms.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\Microsoft.DiaSymReader.Native.amd64.dll.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.ComponentModel.EventBasedAsync.dll.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Net.Requests.dll.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\PresentationNative_cor3.dll.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdCO365R_Subscription-ul-oob.xrm-ms.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStd2019R_Grace-ppd.xrm-ms.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\msvcp120.dll.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pl\ReachFramework.resources.dll.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\deploy.jar.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ko\System.Windows.Forms.Design.resources.dll.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hant\ReachFramework.resources.dll.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\UIAutomationClient.dll.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\ktab.exe.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\logging.properties.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\Java\jre-1.8\bin\server\jvm.dll.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OneNoteR_Trial-pl.xrm-ms.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\XLLEX.DLL.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\es-ES\tabskb.dll.mui.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\.version.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hant\System.Xaml.resources.dll.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\images\cursors\win32_LinkDrop32x32.gif.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\Java\jdk-1.8\lib\jconsole.jar.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\Java\jdk-1.8\THIRDPARTYLICENSEREADME.txt.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\PresentationFramework-SystemData.dll.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\System.Windows.Forms.Design.Editors.dll.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\System.Windows.Forms.dll.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Localytics.dll.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\Microsoft.CSharp.dll.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Security.Cryptography.OpenSsl.dll.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hans\System.Windows.Input.Manipulations.resources.dll.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\Java\jdk-1.8\lib\packager.jar.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProXC2RVL_MAKC2R-ul-phn.xrm-ms.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.zh-tw.dll.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\cs\System.Windows.Forms.Design.resources.dll.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\Java\jre-1.8\bin\WindowsAccessBridge-64.dll.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\th\msipc.dll.mui.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Text.Encodings.Web.dll.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\it\Microsoft.VisualBasic.Forms.resources.dll.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\COPYRIGHT.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OneNoteFreeR_Bypass-ppd.xrm-ms.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_Trial-ppd.xrm-ms.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Standard2019VL_MAK_AE-ul-phn.xrm-ms.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\tpcps.dll.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\sawindbg.dll.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-3101-0000-1000-0000000FF1CE.xml.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTrial3-ul-oob.xrm-ms.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProMSDNR_Retail-pl.xrm-ms.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProCO365R_Subscription-ppd.xrm-ms.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-core-processthreads-l1-1-0.dll.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-core-processenvironment-l1-1-0.dll.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\mip.exe.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\netstandard.dll.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Linq.Parallel.dll.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Net.NetworkInformation.dll.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Xml.XDocument.dll.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\PresentationFramework.dll.tmp	1790c4ec0c85cc3f3ae9f221807cd890N.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	1790c4ec0c85cc3f3ae9f221807cd890N.exe

C:\Users\Admin\AppData\Local\Temp\1790c4ec0c85cc3f3ae9f221807cd890N.exe
"C:\Users\Admin\AppData\Local\Temp\1790c4ec0c85cc3f3ae9f221807cd890N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:1388

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-1-5-21-2392887640-1187051047-2909758433-1000\desktop.ini.tmp

Filesize
35KB

MD5
35f5d48d8bedf1e286a0e749e66f1e9a

SHA1
164fa1bb2a4b8f13a583bbd1ec440b72073aa3e1

SHA256
dcd6bf49e3344c8697dde31b3df560b06e48cfbc26710d5c0e2aa4fec2248454

SHA512
5e6ecb9adfc522c97c4bd39e0a495ec571104f873d5c5d2c9500122ec94d46145a6ca4ad353f4da1cf86ee3c4e480ad9d725355516c9de5c45eaf26fb29848a1

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

Filesize
134KB

MD5
919faffa0596269aea63901f77d0a95b

SHA1
e1f19385cff27bf2924d28f26334f0591e006029

SHA256
6754139f9358d4d2504e2a9f27bf58c48cf6ddfaaac9202c80cfc5df2c9a1405

SHA512
01e53907037b27462826c89db94368bb68a1abb9e5a4a0b844304c62694f81ef1666b6150897548158e850edef1f35c2ac77fa4036db28eda6f7cb5c6a18a1f8

Download Submit
memory/1388-0-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/1388-1002-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download