395398166767f0afde0a47cb17a64c09854b7468ec6670f7151c58dc45cbc34a

Analysis

max time kernel
120s
max time network
94s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
05/09/2024, 11:05

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General

Target

82a4660f57e41bfd7840c02ca42c31a0N.exe
Size

43KB
MD5

82a4660f57e41bfd7840c02ca42c31a0
SHA1

7318a7fc2cd5a4b7da4bc8be9304503e0b8c7a99
SHA256

395398166767f0afde0a47cb17a64c09854b7468ec6670f7151c58dc45cbc34a
SHA512

4650e11d4219484780883e6ad90c57684377ea0d2f2ae7e611f85d98073351b2cf6a3032e4276b48180a4d75ae016f47754d73f7d631e2c8a41b8c365cab519b
SSDEEP

768:kBT37CPKKdJJ1EXBwzEXBwdcMcwBcCBcw/tio/ti12y2Nn3EskmKsMAn3EskmKsE:CTW7JJ7TTQoQ12y2CfmKbfmK/

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4655) 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/5076-0-0x0000000000400000-0x000000000040A000-memory.dmp	upx
behavioral2/files/0x00090000000233fe-2.dat	upx
behavioral2/files/0x0004000000022922-6.dat	upx
behavioral2/memory/5076-956-0x0000000000400000-0x000000000040A000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Java\jdk-1.8\jre\lib\calendars.properties.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Net.Mail.dll.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Drawing.Design.dll.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hant\Microsoft.VisualBasic.Forms.resources.dll.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\chrome_elf.dll.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\server\jvm.dll.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019MSDNR_Retail-pl.xrm-ms.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\fr\UIAutomationClient.resources.dll.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ja\UIAutomationProvider.resources.dll.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\Microsoft.WindowsDesktop.App.runtimeconfig.json.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\System.Security.Permissions.dll.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OutlookVL_KMS_Client-ppd.xrm-ms.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Globalization.Calendars.dll.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\System.Windows.Forms.Primitives.dll.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OutlookVL_MAK-pl.xrm-ms.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProR_Retail2-ul-oob.xrm-ms.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\7-Zip\Lang\fa.txt.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ru\PresentationFramework.resources.dll.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\Java\jre-1.8\legal\javafx\glib.md.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\QuickStyles\basicstylish.dotx.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\cs\UIAutomationProvider.resources.dll.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ja\UIAutomationClient.resources.dll.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.CodeDom.dll.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudent2019DemoR_BypassTrial180-ul-oob.xrm-ms.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LivePersonaCard\lpc.win32.bundle.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\System.Windows.Extensions.dll.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\Microsoft Office\root\Client\api-ms-win-core-localization-l1-2-0.dll.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProCO365R_SubTrial-pl.xrm-ms.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\en-US\rtscom.dll.mui.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\Common Files\System\Ole DB\en-US\msdasqlr.dll.mui.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Net.WebSockets.Client.dll.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Data.DataSetExtensions.dll.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\PresentationFramework.Royale.dll.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019VL_MAK_AE-pl.xrm-ms.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudent2019R_OEM_Perp-ppd.xrm-ms.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\7-Zip\Lang\mng.txt.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.IO.Compression.FileSystem.dll.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Text.RegularExpressions.dll.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\de\Microsoft.VisualBasic.Forms.resources.dll.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_Retail2-pl.xrm-ms.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\InputPersonalization.exe.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Net.Requests.dll.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessPipcR_OEM_Perp-ul-oob.xrm-ms.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Power View Excel Add-in\BI-Report.png.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\it-IT\TipTsf.dll.mui.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\Common Files\System\msadc\ja-JP\msdaprsr.dll.mui.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\Java\jdk-1.8\include\win32\bridge\AccessBridgeCalls.c.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\psfont.properties.ja.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\DataServices\+Connect to New Data Source.odc.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ja\UIAutomationProvider.resources.dll.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\AccessVL_MAK-ppd.xrm-ms.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessDemoR_BypassTrial365-ppd.xrm-ms.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\Common Files\System\msadc\ja-JP\msadcor.dll.mui.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Extensions\external_extensions.json.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\Java\jdk-1.8\include\jvmticmlr.h.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\ext\access-bridge-64.jar.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\security\cacerts.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\TabIpsps.dll.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\cs\System.Windows.Forms.Design.resources.dll.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\prism_sw.dll.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OneNoteR_Retail-ul-phn.xrm-ms.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\de\System.Windows.Forms.Design.resources.dll.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\af.pak.tmp	82a4660f57e41bfd7840c02ca42c31a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStd2019R_Retail-pl.xrm-ms.tmp	82a4660f57e41bfd7840c02ca42c31a0N.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	82a4660f57e41bfd7840c02ca42c31a0N.exe

C:\Users\Admin\AppData\Local\Temp\82a4660f57e41bfd7840c02ca42c31a0N.exe
"C:\Users\Admin\AppData\Local\Temp\82a4660f57e41bfd7840c02ca42c31a0N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:5076

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-1-5-21-355097885-2402257403-2971294179-1000\desktop.ini.tmp

Filesize
43KB

MD5
aa17b5c8200fa1151410b19a65f4a656

SHA1
c9257955dbc355da924832135f2acdc7b2248a62

SHA256
75b74cd2873c7d05ac2b1a891d39a5f2b85413af0845112d29881ac3ee60c60a

SHA512
55139148484e57a7805d614d306d6254d3cc3f2a30703a117c3e2a93f47ea87399125e0d5e05e6fdbe05497c7901643c420934bc474646031da1765fb2efd228

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

Filesize
142KB

MD5
aaa87aef3ba590b4c9584b7b8a958363

SHA1
32d91383704e58bfb00790bcd4d47f38a6d8dcb3

SHA256
c8bf1afc6e6ab7cf3b74562b1706df5dee5f1f0ad3c862f21244974bb25cf87f

SHA512
531879a4cdab50110528147e14f68b8eec18b754da434035a599f7ce64beae1583415d32a06174551e4e6713b87e181bf3a97a1972415f7329a7fcfae734e6f7

Download Submit
memory/5076-0-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/5076-956-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download