efa7bddf1cb3886c81de4b04c0a72d7727636245e0f86bdde1085d1e149e85bb

Analysis

max time kernel
119s
max time network
115s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
14/08/2024, 10:55

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General

Target

6a50569bd640492ec588bb566d23f960N.exe
Size

56KB
MD5

6a50569bd640492ec588bb566d23f960
SHA1

3a28c8111d5fd22b5d75eb74b7fea20859677e8d
SHA256

efa7bddf1cb3886c81de4b04c0a72d7727636245e0f86bdde1085d1e149e85bb
SHA512

44f81f4b7647abf4ff13df96b1d9427844b6f1eaa296a820451f099c38e259b0a5eab1352d054ed1725906ea6166c26c4c3521089c44e64c1254c15a539e9212
SSDEEP

768:V7Blpf/FAK65euBT37CPKKQSjyJJcbQbf1Oti1JGBQOOiQJhATNydWK9WKXIRUIc:V7Zf/FAxTWoJJZENTNyoKIK5

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4649) 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/3516-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x00090000000233f6-2.dat	upx
behavioral2/files/0x000c0000000220a6-6.dat	upx
behavioral2/memory/3516-1958-0x0000000000400000-0x000000000040B000-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\ja\PresentationUI.resources.dll.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\jdb.exe.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OneNoteR_Grace-ul-oob.xrm-ms.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\api-ms-win-crt-private-l1-1-0.dll.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Runtime.InteropServices.dll.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Runtime.InteropServices.JavaScript.dll.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Threading.Overlapped.dll.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\System.Windows.Forms.Primitives.dll.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\AppVClientIsv.man.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.IO.FileSystem.Watcher.dll.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PublisherVL_MAK-ppd.xrm-ms.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\es-ES\tipresx.dll.mui.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\cs\System.Windows.Controls.Ribbon.resources.dll.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\Microsoft Office\root\Client\api-ms-win-core-timezone-l1-1-0.dll.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentVNextR_Trial-pl.xrm-ms.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSOARIANEXT.DLL.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Net.Http.dll.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\j2pcsc.dll.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProR_Retail-pl.xrm-ms.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdVL_KMS_Client-ppd.xrm-ms.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Runtime.Serialization.dll.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\cs\System.Windows.Controls.Ribbon.resources.dll.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\NPSPWRAP.DLL.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\main\base_jpn.xml.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\Common Files\System\Ole DB\de-DE\msdasqlr.dll.mui.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-file-l1-1-0.dll.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Net.WebSockets.dll.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\Microsoft.DiaSymReader.Native.amd64.dll.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Word2019R_Grace-ul-oob.xrm-ms.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\System.Resources.Extensions.dll.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Excel2019R_Retail-ppd.xrm-ms.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudent2019R_Trial-ppd.xrm-ms.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_SubTrial4-ppd.xrm-ms.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\StandardR_Retail-pl.xrm-ms.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProVL_MAK-ppd.xrm-ms.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\ServiceWatcherSchedule.xml.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\Common Files\System\msadc\de-DE\msadcor.dll.mui.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.ValueTuple.dll.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\Google\Chrome\Application\chrome_proxy.exe.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_SubTrial2-ul-oob.xrm-ms.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\tr-TR\tipresx.dll.mui.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\de\PresentationCore.resources.dll.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\BORDERS\MSART14.BDR.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\ExcelLogo.scale-180.png.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\OneNoteLogoSmall.contrast-white_scale-100.png.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\Common Files\System\ado\msado25.tlb.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\es\UIAutomationClient.resources.dll.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ru\System.Windows.Input.Manipulations.resources.dll.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\Microsoft.WindowsDesktop.App.deps.json.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-core-processthreads-l1-1-1.dll.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\main\base_altgr.xml.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProR_Grace-ppd.xrm-ms.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\7-Zip\Lang\si.txt.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProMSDNR_Retail-ppd.xrm-ms.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Word2019R_Trial-ul-oob.xrm-ms.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ja\System.Xaml.resources.dll.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\id.pak.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\Microsoft Office\root\Integration\C2RManifest.powerpointmui.msi.16.en-us.xml.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\Bibliography\Sort\TAG.XSL.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Standard2019R_Retail-ppd.xrm-ms.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\System.Spatial.NetFX35.dll.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Net.WebClient.dll.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pl\System.Windows.Forms.Design.resources.dll.tmp	6a50569bd640492ec588bb566d23f960N.exe
File created	C:\Program Files\Java\jre-1.8\bin\resource.dll.tmp	6a50569bd640492ec588bb566d23f960N.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	6a50569bd640492ec588bb566d23f960N.exe

C:\Users\Admin\AppData\Local\Temp\6a50569bd640492ec588bb566d23f960N.exe
"C:\Users\Admin\AppData\Local\Temp\6a50569bd640492ec588bb566d23f960N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:3516

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-1-5-21-523280732-2327480845-3730041215-1000\desktop.ini.tmp

Filesize
56KB

MD5
dcdd49238d0c5c2e31a2632d62141607

SHA1
00310a604a291d8b03a870a0f3d4a18799dceb9e

SHA256
5c630992b95803697b48e8c4688592dde4d9ee256ee35d7799b54bf527cc8687

SHA512
8a0b5019db914439038c91817232a8d21faad2034686feea4879b02c4f783ac7287b747b589d12ad15c24947b1afe7ead02a0c3a3bb3f5bd57c1809573567ef4

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

Filesize
155KB

MD5
05c72b6b1fbcdfe9fdc6725c0f5ffe0e

SHA1
9d9ae1fa3fc9a7029ae718c2829eb18aa6ac32c6

SHA256
e320bfcd93db80f89890a2127b1a98fe46e34773411514ac4452213d33f7dc7e

SHA512
bbcc2bdd621412414f6fdcbcf2391b220d4eeb00c3bb370919ef1bf14201f1acb348f87626c0660a91803d48bc07dd762c517bf4ca274a72d82991a30eec9ad5

Download Submit
memory/3516-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3516-1958-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download