3525a016752e7e923e2727d351a41cac3d050b7ac86fb5da42a3dd5331c2aa0d

Analysis

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

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
03-08-2024 03:07

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General

Target

3f4cdadb5794e3b211fc2f5c678b5a40N.exe
Size

127KB
MD5

3f4cdadb5794e3b211fc2f5c678b5a40
SHA1

59c7d0eaac98a416185baeb306df8541c3a226a2
SHA256

3525a016752e7e923e2727d351a41cac3d050b7ac86fb5da42a3dd5331c2aa0d
SHA512

d8543f185ee01a457b4a4aaac2bd5e495707de2133371594529ce64ed1c0207e49d6d848637a30c2b6dfcea288d55e3f28a6d16c10f35dc755d489d5951e8b54
SSDEEP

1536:V7Zf/FAxTWxOmO/fxRfxykK3ZUkK3ZKYF6HTW8OmO/fxRfxykK3ZUkK3ZKYF60:fny+Tuf7fs6eTuf7fs6x

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4102) 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-6.dat	upx
behavioral2/memory/1504-1610-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Java\jdk-1.8\lib\packager.jar.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\Microsoft Office\root\fre\StartMenu_Win10.mp4.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_Subscription3-pl.xrm-ms.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019R_Grace-ul-oob.xrm-ms.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProR_Grace-ppd.xrm-ms.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-crt-environment-l1-1-0.dll.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\Java\jre-1.8\lib\psfont.properties.ja.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStd2019R_Grace-ul-oob.xrm-ms.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdCO365R_SubTrial-ul-oob.xrm-ms.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.ComponentModel.dll.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Outlook2019R_Trial-pl.xrm-ms.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.ComponentModel.TypeConverter.dll.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Configuration.dll.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Security.Cryptography.Primitives.dll.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\Common Files\microsoft shared\MSInfo\en-US\msinfo32.exe.mui.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\netstandard.dll.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\fa.pak.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\Java\jre-1.8\legal\javafx\jpeg_fx.md.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdO365R_SubTest-ul-oob.xrm-ms.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\sk-SK\tipresx.dll.mui.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Formats.Asn1.dll.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\es\UIAutomationTypes.resources.dll.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Configuration.ConfigurationManager.dll.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\fr\ReachFramework.resources.dll.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2R32.dll.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\main\base_jpn.xml.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ko\System.Xaml.resources.dll.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\Internet Explorer\es-ES\ieinstal.exe.mui.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProXC2RVL_MAKC2R-ul-oob.xrm-ms.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusR_Trial2-pl.xrm-ms.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStd2019R_Retail-ppd.xrm-ms.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.IO.MemoryMappedFiles.dll.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Fonts\Constantia-Franklin Gothic Book.xml.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\sv-SE\tipresx.dll.mui.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Reflection.TypeExtensions.dll.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\relaxngcc.md.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\Java\jre-1.8\lib\fonts\LucidaTypewriterBold.ttf.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\7-Zip\Lang\gu.txt.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\t2k.dll.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\javafx\directshow.md.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\Java\jre-1.8\bin\eula.dll.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\Java\jre-1.8\bin\klist.exe.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_OEM_Perp4-ul-phn.xrm-ms.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\DirectWriteForwarder.dll.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\AccessR_Grace-ul-oob.xrm-ms.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Professional2019DemoR_BypassTrial180-ul-oob.xrm-ms.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\fr\PresentationUI.resources.dll.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_OEM_Perp6-ul-phn.xrm-ms.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Threading.Tasks.Dataflow.dll.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Word2019R_Grace-ppd.xrm-ms.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hans\ReachFramework.resources.dll.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\es\UIAutomationClient.resources.dll.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\fr\System.Windows.Forms.Primitives.resources.dll.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\it\PresentationCore.resources.dll.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-core-synch-l1-1-0.dll.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProCO365R_SubTrial-pl.xrm-ms.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Security.Cryptography.Algorithms.dll.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\xalan.md.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\deploy\splash_11-lic.gif.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Fonts\Gill Sans MT.xml.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\AccessVL_MAK-ul-oob.xrm-ms.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_Retail-ul-oob.xrm-ms.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\WINWORD_K_COL.HXK.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.exe
File created	C:\Program Files\Common Files\System\ado\msado20.tlb.tmp	3f4cdadb5794e3b211fc2f5c678b5a40N.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	3f4cdadb5794e3b211fc2f5c678b5a40N.exe

C:\Users\Admin\AppData\Local\Temp\3f4cdadb5794e3b211fc2f5c678b5a40N.exe
"C:\Users\Admin\AppData\Local\Temp\3f4cdadb5794e3b211fc2f5c678b5a40N.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:2396

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
128KB

MD5
5fec5203415b4191293f2d86c4b6dd99

SHA1
87e7a7c291e70b6d94c7feafb56ce46f0502fa17

SHA256
0354fe14ea3465bf6138ab1b23a506ce089d5e683f1591875c2fb0581ab1adf9

SHA512
d2c6fede23c4067e88b0a58f52f54c9aa64e7936e8effd337d0daef13468aef990c1f5a33ce47f48b92b511ba400e51128b4066be475346b1199383b78a729b2

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

Filesize
240KB

MD5
645f9f0d22c9bf17dd054398f4745888

SHA1
89411b7586128aa89245b54cf1fb6ff7707c602d

SHA256
1643044f60771b04b57911fa947dfd6f5fdab2b508f21b73b006129a61e31f64

SHA512
73ace148fd700857535b533442982485a0c0a93d673cfbf4c88890c9376275206a5a365eeac42fbbf32a2f328146192fed03b8a307192382f4a617bf1db86f74

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

Filesize
44KB

Download
memory/1504-1610-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download