c7d6b3eb4a69cd60b34db812feabde7be5da4100faed540e784a649588539f92

Analysis

max time kernel
120s
max time network
109s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
19/08/2024, 10:48

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General

Target

52bbf36f16a6cac1c54a268de4de3f20N.exe
Size

47KB
MD5

52bbf36f16a6cac1c54a268de4de3f20
SHA1

d3119d597b2f6b8d8f279795150014261d98a737
SHA256

c7d6b3eb4a69cd60b34db812feabde7be5da4100faed540e784a649588539f92
SHA512

3befaedcab6047af41dd3614298af075da04f5334e95e492c40cdc37ffce437e4b4228231a7bbca772585dbaa3723da8e665b28417f57245899c93170ad0af2e
SSDEEP

768:V7Blpf/FAK65euBT37CPKKQSjyJJcbQbf1Oti1JGBQOOiQJhATBApwpI:V7Zf/FAxTWoJJZENTBAOi

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4652) 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/3756-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0009000000023419-2.dat	upx
behavioral2/files/0x000800000002347c-6.dat	upx
behavioral2/memory/3756-948-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-crt-multibyte-l1-1-0.dll.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-crt-conio-l1-1-0.dll.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Colors\Yellow Orange.xml.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_Retail-ppd.xrm-ms.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\DBGCORE.DLL.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Security.Cryptography.Primitives.dll.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\fr\System.Windows.Controls.Ribbon.resources.dll.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\EXPTOOWS.DLL.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\PowerPntLogo.scale-140.png.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Net.WebProxy.dll.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.ComponentModel.EventBasedAsync.dll.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pt-BR\System.Windows.Controls.Ribbon.resources.dll.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LivePersonaCard\lpc.win32.bundle.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\Common Files\microsoft shared\VSTO\vstoee.dll.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\es\System.Windows.Controls.Ribbon.resources.dll.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdO365R_SubTrial-ul-oob.xrm-ms.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019DemoR_BypassTrial180-ul-oob.xrm-ms.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\WordR_OEM_Perp-pl.xrm-ms.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\WordR_Trial-pl.xrm-ms.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\7-Zip\7zG.exe.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\insert\insertbase.xml.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.ServiceModel.Web.dll.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ru\UIAutomationTypes.resources.dll.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\javafx\public_suffix.md.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\schemagen.exe.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusEDUR_Subscription-pl.xrm-ms.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProR_Retail-ul-oob.xrm-ms.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\7-Zip\Lang\ta.txt.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\PresentationCore.dll.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Standard2019R_Grace-ul-oob.xrm-ms.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\api-ms-win-crt-convert-l1-1-0.dll.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\ExcelLogoSmall.contrast-black_scale-80.png.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fr-FR\tipresx.dll.mui.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019MSDNR_Retail-ppd.xrm-ms.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSYUBIN7.DLL.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\offsymt.ttf.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\PowerPointNaiveBayesCommandRanker.txt.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\OneNoteLogo.scale-140.png.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Reflection.TypeExtensions.dll.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\fr\System.Windows.Forms.Design.resources.dll.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PowerPoint2019R_Trial-ul-oob.xrm-ms.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProfessionalR_OEM_Perp-ul-oob.xrm-ms.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Publisher2019R_OEM_Perp-ul-oob.xrm-ms.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\PresentationFramework-SystemCore.dll.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\it\System.Windows.Forms.resources.dll.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-001F-0409-1000-0000000FF1CE.xml.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProVL_KMS_Client-ppd.xrm-ms.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Standard2019VL_KMS_Client_AE-ppd.xrm-ms.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\mscss7wre_en.dub.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\UIAutomationClient.dll.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\MEIPreload\manifest.json.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\Java\jre-1.8\legal\jdk\thaidict.md.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\Java\jre-1.8\lib\charsets.jar.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Power View Excel Add-in\Microsoft.PowerBI.AdomdClient.dll.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\mscordaccore.dll.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\de\Microsoft.VisualBasic.Forms.resources.dll.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\Java\jre-1.8\lib\amd64\jvm.cfg.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\POWERPNT_K_COL.HXK.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\7-Zip\Lang\fa.txt.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\en-US\tabskb.dll.mui.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Design.dll.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProCO365R_SubTrial-ul-oob.xrm-ms.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ExcelVL_MAK-ul-phn.xrm-ms.tmp	52bbf36f16a6cac1c54a268de4de3f20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdXC2RVL_KMS_ClientC2R-ul-oob.xrm-ms.tmp	52bbf36f16a6cac1c54a268de4de3f20N.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	52bbf36f16a6cac1c54a268de4de3f20N.exe

C:\Users\Admin\AppData\Local\Temp\52bbf36f16a6cac1c54a268de4de3f20N.exe
"C:\Users\Admin\AppData\Local\Temp\52bbf36f16a6cac1c54a268de4de3f20N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:3756

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-1-5-21-945322488-2060912225-3527527000-1000\desktop.ini.tmp

Filesize
47KB

MD5
32ec73519a7b421efdf5e11d6a4adca5

SHA1
ddb770b67772c970faca351eb2ecddc29a627923

SHA256
ebe73141dba0b7d956aee31a6c7157a2a0a4886ab2d8f84d427de9c66ab0d3e2

SHA512
ee6915df393370a2783e7c4944303e18411bcb773279ac5e79125547762e6ad59c8bd63c9531105fe02918b48ec0fd9174127f2b56ee04d3ad4efeb42655e2e2

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

Filesize
146KB

MD5
be89ba6dcdaeebb181e5ea2482396018

SHA1
f350cafaf2c235e504aac1a49fc58e2f0a304c27

SHA256
3485075f2364cd88428f9e266429ac855526c96fa9952a274466a96e2a8febc6

SHA512
73121a157e41b6ff32d090923de7244007172662648427a0869476bdca4820bb4dfb1079047df0bfeee698368c595807710d82cc55f9b69a3aaf21484c8f9bfb

Download Submit
memory/3756-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3756-948-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download