36dcce34ed33fdeb4826a7e57cf9b86f666efc3a4637c13a697b3d79f800ba87

Analysis

max time kernel
120s
max time network
119s
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, 11:10

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General

Target

d73828d042040527dad227e2e46e2a00N.exe
Size

83KB
MD5

d73828d042040527dad227e2e46e2a00
SHA1

35eecc104a62545d0b1d572ce0052a1fdb019df2
SHA256

36dcce34ed33fdeb4826a7e57cf9b86f666efc3a4637c13a697b3d79f800ba87
SHA512

07ef749bf4da0cfc160b4bc9d7eb3b130436885b1e12bb0f6cf4f6009b429f8991aae152b427684a54c961d12ecbb3556f9593a92abfea9d4825944431854e82
SSDEEP

1536:V7Zf/FAxTWY1++PJHJXA/OsIZfzc3/Q8IZTkb/b8QH:fnyiQSo7Zgr4QH

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4354) 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/1504-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0009000000023582-2.dat	upx
behavioral2/files/0x000600000001690a-7.dat	upx
behavioral2/memory/1504-806-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ru\System.Windows.Input.Manipulations.resources.dll.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-core-rtlsupport-l1-1-0.dll.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdXC2RVL_KMS_ClientC2R-ppd.xrm-ms.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.IO.UnmanagedMemoryStream.dll.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\XLINTL32.DLL.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\AppVClientIsv.man.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\AppvIsvSubsystems32.dll.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fr-FR\tipresx.dll.mui.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\hwrenclm.dat.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.it-it.dll.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\java-rmi.exe.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\api-ms-win-core-file-l2-1-0.dll.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\7-Zip\Lang\ne.txt.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\glib-lite.dll.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\AccessVL_MAK-ppd.xrm-ms.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_Retail-ul-oob.xrm-ms.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ExcelFloatieTextModel.bin.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pt-BR\System.Xaml.resources.dll.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\System.Threading.AccessControl.dll.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\Java\jre-1.8\legal\javafx\jpeg_fx.md.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdVL_KMS_Client-ul-oob.xrm-ms.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\libEGL.dll.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\SharedPerformance.man.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\de-DE\tabskb.dll.mui.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ko\System.Windows.Forms.Primitives.resources.dll.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ko\UIAutomationTypes.resources.dll.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\security\public_suffix_list.dat.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\Java\jre-1.8\legal\jdk\cldr.md.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLV.DOC.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\pl-PL\tipresx.dll.mui.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Reflection.Emit.ILGeneration.dll.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ru\System.Xaml.resources.dll.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ja\System.Windows.Controls.Ribbon.resources.dll.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.et-ee.dll.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fr-FR\rtscom.dll.mui.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\Java\jre-1.8\lib\fontconfig.bfc.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Standard2019VL_KMS_Client_AE-ul.xrm-ms.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\chrome_elf.dll.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\WidevineCdm\_platform_specific\win_x64\widevinecdm.dll.sig.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusR_OEM_Perp-pl.xrm-ms.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\Common Files\System\ja-JP\wab32res.dll.mui.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Net.Requests.dll.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ja\UIAutomationTypes.resources.dll.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ru\System.Windows.Forms.Primitives.resources.dll.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Buffers.dll.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\PresentationFramework-SystemData.dll.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\giflib.md.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\ucrtbase.dll.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudent2019R_Trial-ul-oob.xrm-ms.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PowerPoint2019VL_MAK_AE-ul-phn.xrm-ms.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2R32.dll.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-file-l1-2-0.dll.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-crt-environment-l1-1-0.dll.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Net.Sockets.dll.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Slice.thmx.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\StandardMSDNR_Retail-pl.xrm-ms.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\es-ES\TipRes.dll.mui.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pl\System.Windows.Controls.Ribbon.resources.dll.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\System.Xaml.dll.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-crt-conio-l1-1-0.dll.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.el-gr.dll.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Facet.thmx.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_OEM_Perp6-ppd.xrm-ms.tmp	d73828d042040527dad227e2e46e2a00N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Security.Cryptography.X509Certificates.dll.tmp	d73828d042040527dad227e2e46e2a00N.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	d73828d042040527dad227e2e46e2a00N.exe

C:\Users\Admin\AppData\Local\Temp\d73828d042040527dad227e2e46e2a00N.exe
"C:\Users\Admin\AppData\Local\Temp\d73828d042040527dad227e2e46e2a00N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:1504

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=4120,i,1729213506309163284,12809566808978835441,262144 --variations-seed-version --mojo-platform-channel-handle=4440 /prefetch:8
1⤵
PID:2556

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
84KB

MD5
47c1e1d8124e6e37cdbdca836c3419ce

SHA1
0ea0c02df0977a816beef84e7f0fd054a5641e23

SHA256
091a1198dbe69826aa72251962227d46ce4e8b6c8aec7318671da08cd4015342

SHA512
a951993b5ac515b6dfa960664864701b8fb0e61ef0e13ad92322d88c740854b8cfc341a589c546ca2e535e8023751664d242128e8d0c03d5618c0a063c930b8f

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

Filesize
196KB

MD5
3ab5e08cb5c2da6c0dc7680903fe2eec

SHA1
8167fc41001e3dddae39eba5d6eec3de9b14d035

SHA256
9ff61a180a650533593492080d0715e4de0a8764ab4945a9f134f0f64cb522c3

SHA512
eb20200cd73e23b22b01ce836c4b7fecfc588c3f9beed8d57780e68be719439f298285657295695661c6d6552feba4249dbc6fb11cd2db974826f606c08b23a5

Download Submit
memory/1504-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1504-806-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download