01ffcc331d2c69718186d859df19635cd89b528e775480a0ac00428bc73df8b6

Analysis

max time kernel
120s
max time network
98s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
08/09/2024, 03:24

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General

Target

dc7520925752a810a8c43c3119640b50N.exe
Size

53KB
MD5

dc7520925752a810a8c43c3119640b50
SHA1

fca541336e9d1b4c70b372d9eec4f6b347cb0b24
SHA256

01ffcc331d2c69718186d859df19635cd89b528e775480a0ac00428bc73df8b6
SHA512

841190545f68972a8dfa609d831ce5451d73dbe054009336928ef9a8498914e717a16a62011a18a94473c21f420317919a2711c44575538529c66f7b9e14ae95
SSDEEP

768:kBT37CPKKdJJcbQbf1Oti1JGBQOOiQJhATNy2/mepYXwILQ7ZVnEbisFhiXFharo:CTW7JJZENTNyavf73tQqarnp2

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4530) 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/5072-0-0x0000000000400000-0x000000000040A000-memory.dmp	upx
behavioral2/files/0x000900000002346d-2.dat	upx
behavioral2/files/0x000400000002291b-6.dat	upx
behavioral2/memory/5072-808-0x0000000000400000-0x000000000040A000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\7-Zip\Lang\zh-cn.txt.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\InspectorOfficeGadget.exe.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Xml.XPath.dll.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.pl-pl.dll.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\main\base_heb.xml.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\javaws.jar.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_OEM_Perp4-ul-oob.xrm-ms.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\FirstRunLogo.scale-140.png.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\Common Files\System\msadc\fr-FR\msadcer.dll.mui.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hant\WindowsFormsIntegration.resources.dll.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\Java\jdk-1.8\COPYRIGHT.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\FirstRunLogo.contrast-white_scale-140.png.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Security.Cryptography.OpenSsl.dll.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\de\System.Windows.Forms.resources.dll.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\notification_helper.exe.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProR_Trial-ul-oob.xrm-ms.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-core-util-l1-1-0.dll.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\decora_sse.dll.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\Java\jre-1.8\bin\jsdt.dll.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProfessionalDemoR_BypassTrial180-ppd.xrm-ms.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\Java\jre-1.8\lib\ext\access-bridge-64.jar.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusR_Grace-ppd.xrm-ms.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\PowerPointNaiveBayesCommandRanker.txt.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\tipresx.dll.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\Java\jre-1.8\lib\ext\sunpkcs11.jar.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019MSDNR_Retail-ul-oob.xrm-ms.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusR_OEM_Perp2-ul-oob.xrm-ms.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\Configuration\card_terms_dict.txt.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Text.Encoding.Extensions.dll.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Threading.Overlapped.dll.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\es\System.Windows.Controls.Ribbon.resources.dll.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\it\System.Windows.Input.Manipulations.resources.dll.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\java.exe.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdR_Retail-ppd.xrm-ms.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Container.NetFX40.exe.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\es\System.Windows.Forms.Primitives.resources.dll.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\Java\jre-1.8\bin\prism_sw.dll.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\Java\jre-1.8\bin\rmiregistry.exe.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365BusinessR_SubTest-pl.xrm-ms.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019VL_MAK_AE-ul-oob.xrm-ms.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProCO365R_SubTest-ul-oob.xrm-ms.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\WacLangPack2019Eula.txt.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\PSRCHPHN.DAT.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\AppVPolicy.dll.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\msquic.dll.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Colors\Yellow.xml.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_ViewOnly_ZeroGrace-ul-oob.xrm-ms.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProR_Trial-ppd.xrm-ms.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProXC2RVL_KMS_ClientC2R-ppd.xrm-ms.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\ClientSub_eula.txt.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\AppVScripting.dll.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Diagnostics.Tools.dll.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\UIAutomationProvider.dll.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusVL_KMS_Client-ul.xrm-ms.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Security.Cryptography.dll.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\it\System.Xaml.resources.dll.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\Java\jre-1.8\lib\deploy\messages_de.properties.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ipssrb.xml.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\Common Files\System\Ole DB\it-IT\sqlxmlx.rll.mui.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\ta.pak.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\Java\jdk-1.8\include\win32\jawt_md.h.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OneNoteR_OEM_Perp-ppd.xrm-ms.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MEDIA\ARROW.WAV.tmp	dc7520925752a810a8c43c3119640b50N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fr-FR\TabTip.exe.mui.tmp	dc7520925752a810a8c43c3119640b50N.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	dc7520925752a810a8c43c3119640b50N.exe

C:\Users\Admin\AppData\Local\Temp\dc7520925752a810a8c43c3119640b50N.exe
"C:\Users\Admin\AppData\Local\Temp\dc7520925752a810a8c43c3119640b50N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:5072

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-1-5-21-1302416131-1437503476-2806442725-1000\desktop.ini.tmp

Filesize
53KB

MD5
95af76ee68a982d30acb6bafdcccc2d9

SHA1
7bf3c45b51ad5003ef97cc63dcecb0e3469c8e1f

SHA256
e72fa9f8f44bf85cc348934b7d111fd40ec6b01962d3844a7153f02cc79035e6

SHA512
087c4e23f1ca28138f12c61b0b5e5e885dc7dce4ea12bef99aef5340a332931c544719a4f373760b69039d7695c6cd24d3201904d2577972d7b2092797f8f99f

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

Filesize
152KB

MD5
43661ca0b84fbd62405c8ff1f929b0bf

SHA1
9b32e122d30ff2bb5dbcf8907bfcc7c66ebca959

SHA256
7e8f9d3df6a6b814ffbb64cb6ce90b015f17840361c937f321ef25a36ff4dca7

SHA512
dbae8d0ef2226605b9ff942084f373d7a48c4c02dd1fe77257ceaedeef4ce32a0a823868c73b3a1bbe987e5ffa61407bfa84094a49437117cc1827ff84c0407a

Download Submit
memory/5072-0-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/5072-808-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download