b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a

Analysis

max time kernel
150s
max time network
131s
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, 03:45

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General

Target

b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
Size

184KB
MD5

a2d8cdc5198fae7c1e0c58d797291398
SHA1

8d0b07c839b45556295ba0c2848ff618de7e8697
SHA256

b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a
SHA512

48e11edde741ed2c0e5327eee1c388a341b35b30bed9c9c17c9269f9ac0fd9b574cf37f7db19312c1616cce18ae8d03207a5576a94034b8ef5427c57ab9affd1
SSDEEP

3072:enaypQSohsUsUKL7UYsC+hALfUqI0qEiDW6VcQgKX58rU:wHpQSohsUsJ7UYsC+iLfUY8DtVcaX5x

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4669) 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/4808-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x00080000000235b6-2.dat	upx
behavioral2/files/0x000600000001690a-6.dat	upx
behavioral2/memory/4808-760-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ko\System.Windows.Forms.Primitives.resources.dll.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-001B-0000-1000-0000000FF1CE.xml.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\fontmanager.dll.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\hostpolicy.dll.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\bn.pak.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\offsymb.ttf.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\UIAutomationTypes.dll.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-001B-0409-1000-0000000FF1CE.xml.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Console.dll.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\System.Security.Permissions.dll.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProfessionalR_Trial-ppd.xrm-ms.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\OneNoteLogoSmall.contrast-white_scale-140.png.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\PresentationNative_cor3.dll.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_OEM_Perp-ul-oob.xrm-ms.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\PowerPntLogoSmall.contrast-black_scale-80.png.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\AssertUninstall.ADTS.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Colors\Marquee.xml.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\Microsoft Office\root\Office16\msvcr120.dll.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\es\WindowsBase.resources.dll.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusR_Trial2-ul-oob.xrm-ms.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\fr\ReachFramework.resources.dll.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\cs\PresentationUI.resources.dll.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\wsdetect.dll.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Practices.Unity.dll.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LivePersonaCard\images\default\linkedin_ghost_profile.png.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\ro\msipc.dll.mui.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\oskpred\oskpredbase.xml.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\symbols\symbase.xml.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\cmm\sRGB.pf.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.ProviderShared.dll.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\Microsoft.VisualBasic.Core.dll.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\Java\jdk-1.8\bin\javaws.exe.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hant\ReachFramework.resources.dll.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-core-handle-l1-1-0.dll.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PersonalR_OEM_Perp-pl.xrm-ms.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ru\PresentationCore.resources.dll.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hans\UIAutomationProvider.resources.dll.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Outlook2019R_OEM_Perp-ppd.xrm-ms.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\7-Zip\Lang\an.txt.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.ValueTuple.dll.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Security.Cryptography.dll.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\tr\UIAutomationProvider.resources.dll.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\de\System.Windows.Forms.Primitives.resources.dll.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStd2019VL_MAK_AE-ppd.xrm-ms.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-crt-multibyte-l1-1-0.dll.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\ClientCapabilities.json.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_Trial-ppd.xrm-ms.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365EduCloudEDUR_SubTrial-pl.xrm-ms.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\Java\jre-1.8\lib\security\blacklist.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\Java\jre-1.8\THIRDPARTYLICENSEREADME-JAVAFX.txt.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\WindowsFormsIntegration.dll.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ExcelR_OEM_Perp-ul-phn.xrm-ms.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019VL_KMS_Client_AE-ppd.xrm-ms.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStd2019R_Grace-ul-oob.xrm-ms.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\Microsoft Office\root\Office16\concrt140.dll.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\Common Files\System\Ole DB\de-DE\msdasqlr.dll.mui.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Reflection.Emit.dll.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\fr\PresentationFramework.resources.dll.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Diagnostics.PerformanceCounter.dll.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_Retail3-ul-phn.xrm-ms.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_OEM_Perp-pl.xrm-ms.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\StandardVL_KMS_Client-ul-oob.xrm-ms.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fr-FR\TabTip.exe.mui.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\de\PresentationUI.resources.dll.tmp	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.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	b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe

C:\Users\Admin\AppData\Local\Temp\b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe
"C:\Users\Admin\AppData\Local\Temp\b57b74db9b821f7a42957b60634707a0fca9baae37924b27e84950de88fcd41a.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:4808

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=3932,i,4356837537417149674,16553092232944545509,262144 --variations-seed-version --mojo-platform-channel-handle=4160 /prefetch:8
1⤵
PID:4468

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-1-5-21-2170637797-568393320-3232933035-1000\desktop.ini.tmp

Filesize
185KB

MD5
b286b32a6bfe5abb01f51fe768f4053c

SHA1
2710859800f91ea2f01f71c0a0b86a70567ea754

SHA256
bf7e2b518c815a26c934cec994b6df6f110e982a96606afbf54fc42df2c1c7c7

SHA512
76e255b812ad33cd0c4e8fda99526972b21a7a84dfe9078333e236f3da2054963629c09a9ad13ce02f040244cac414737075f4d74a9bde9b2be54be75f649d07

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

Filesize
297KB

MD5
c768a951419a305af8ab69b331939cd9

SHA1
4741e6ac255448547b1ff8c9149db2a71901297b

SHA256
1aa35488ec02325d95187caac37591fec085621ae6b73e7928f201b53e96f9fc

SHA512
e7b37d236a213bf40fd3ccda1988f4e2df9e38b3dfa0f49969782ededab490de1d8bf4074c1d178d13767ca601515a1149263d285a3e204aaf2dbe58f64e275c

Download Submit
memory/4808-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4808-760-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download