c2a61e77e73aaa9cf88b32e2044bdd36ae319587b4aa143e864f1b1f1625a5d7

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
17/08/2024, 16:42

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General

Target

8742f667213551f5eea4c71179627e30N.exe
Size

82KB
MD5

8742f667213551f5eea4c71179627e30
SHA1

ec40cc0e3b854df64fc8c446c0cc49053fb46168
SHA256

c2a61e77e73aaa9cf88b32e2044bdd36ae319587b4aa143e864f1b1f1625a5d7
SHA512

5918c2d42e00430722d5104bc8ed15ce00abc2ef547034bc14e5fed05d8d580b8f543dca57a7cdc17f1ec4db160caea3bec2b612a5d6589f3d91b9b758c6a02c
SSDEEP

1536:V7Zf/FAxTWY1++PJHJXA/OsIZfzc3/Q8IZR9TZi9TZG:fnyiQSo7ZTZcZG

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4628) 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/2856-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023490-2.dat	upx
behavioral2/files/0x0008000000023493-6.dat	upx
behavioral2/memory/2856-868-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\es\Microsoft.VisualBasic.Forms.resources.dll.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-console-l1-2-0.dll.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.ComponentModel.TypeConverter.dll.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\ClientSub_M365_eula.txt.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Diagnostics.DiagnosticSource.dll.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\Common Files\System\it-IT\wab32res.dll.mui.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\cmm\PYCC.pf.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_OEM_Perp3-ul-oob.xrm-ms.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019XC2RVL_KMS_ClientC2R-ppd.xrm-ms.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\TabIpsps.dll.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\cs\UIAutomationClient.resources.dll.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\Java\jre-1.8\bin\javafx_font.dll.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStd2019R_Grace-ppd.xrm-ms.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusR_Trial2-ppd.xrm-ms.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019VL_KMS_Client_AE-ul.xrm-ms.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\QuickStyles\basicelegant.dotx.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pl\PresentationCore.resources.dll.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PowerPoint2019VL_MAK_AE-pl.xrm-ms.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\TellMeWord.nrr.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\Bibliography\Style\MLASeventhEditionOfficeOnline.xsl.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\Internet Explorer\iexplore.exe.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_O16EnterpriseVL_Bypass30-ul-oob.xrm-ms.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\BORDERS\MSART3.BDR.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\7-Zip\Lang\bg.txt.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\javafx\directshow.md.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ExcelR_Trial-ul-oob.xrm-ms.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_Grace-ppd.xrm-ms.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusR_OEM_Perp-pl.xrm-ms.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\SkypeServiceBypassR_PrepidBypass-ul-oob.xrm-ms.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-core-synch-l1-2-0.dll.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\cs\System.Windows.Input.Manipulations.resources.dll.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019VL_MAK_AE-ul-oob.xrm-ms.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\it-IT\ShapeCollector.exe.mui.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\hwrenclm.dat.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\de\System.Windows.Input.Manipulations.resources.dll.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProCO365R_SubTrial-ul-oob.xrm-ms.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProO365R_SubTrial-pl.xrm-ms.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MEDIA\BREEZE.WAV.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\cs\msipc.dll.mui.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\ClientEventLogMessages.man.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\Microsoft.VisualBasic.dll.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Professional2019R_Grace-ppd.xrm-ms.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProDemoR_BypassTrial180-ul-oob.xrm-ms.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdCO365R_Subscription-ppd.xrm-ms.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Private.Uri.dll.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\mojo_core.dll.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-006E-0409-1000-0000000FF1CE.xml.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusiness2019R_Trial-pl.xrm-ms.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\mscordbi.dll.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessPipcR_OEM_Perp-ul-oob.xrm-ms.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_ViewOnly_ZeroGrace-ppd.xrm-ms.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_Grace-ul-oob.xrm-ms.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdO365R_SubTrial-ul-oob.xrm-ms.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\Java\jre-1.8\legal\jdk\relaxngom.md.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Reflection.Emit.Lightweight.dll.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ko\Microsoft.VisualBasic.Forms.resources.dll.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusinessR_Trial-ul-oob.xrm-ms.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdCO365R_Subscription-ul-oob.xrm-ms.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ja-JP\tipresx.dll.mui.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_Subscription3-pl.xrm-ms.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\chrome_200_percent.pak.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-crt-utility-l1-1-0.dll.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OutlookVL_MAK-pl.xrm-ms.tmp	8742f667213551f5eea4c71179627e30N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStd2019VL_MAK_AE-ul-phn.xrm-ms.tmp	8742f667213551f5eea4c71179627e30N.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	8742f667213551f5eea4c71179627e30N.exe

C:\Users\Admin\AppData\Local\Temp\8742f667213551f5eea4c71179627e30N.exe
"C:\Users\Admin\AppData\Local\Temp\8742f667213551f5eea4c71179627e30N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:2856

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
82KB

MD5
0dbd8b8aa8e4ed88bcf180c409bec4b6

SHA1
4a412b1751ce28caa8a3000e24054171979ccd9b

SHA256
d7acbb478baa2df04b01afc40fe27249d5dc66b430316b4940b534044fbaf2ed

SHA512
05ad7b0274a213a143093ff4f30e9ad7cc0989b5d93034e2a1e3ea8434eb630a7fb948154143ad556d3ec99f129ad64be70ab7f25aebc99e9c6e524168695795

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

Filesize
181KB

MD5
bd9c72858ad007e528a0a49799a5ab33

SHA1
83a2079b551ecedc194e0c1dc2413f4477ab4701

SHA256
afed609b4aec1d020fbdb830374d6bce1c76f2aea2cdb3c9029aaa776538a092

SHA512
834fc02c441b3dd1a423533ca6a4e1784c75f9267227f58ce0f552b153582aa3211782b420e0bd59b085961455ece84afaa8f787abcc64f92d46cfbdc143da7e

Download Submit
memory/2856-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2856-868-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download