4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0e

Analysis

max time kernel
120s
max time network
94s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
19-09-2024 06:45

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General

Target

4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
Size

28KB
MD5

e7e318153e01568a8436eef44a352120
SHA1

fbe4abf017db814f71a874f66f9332ba61d3c0c8
SHA256

4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0e
SHA512

2ce997f489c95c0c5ae02d9c71288ea5f80d2078b2f71b2aead7f473d281fefe015436582590cbd2f7493cc7cc81f8a36959bc78facf688f47b2ab51425cd178
SSDEEP

768:kBT37CPKKdJJ1EXBwzEXBwdcMcI9UwNr8:CTW7JJ7TiwNr8

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4676) 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/3708-0-0x0000000000400000-0x000000000040A000-memory.dmp	upx
behavioral2/files/0x0009000000023400-2.dat	upx
behavioral2/files/0x0004000000022922-6.dat	upx
behavioral2/memory/3708-928-0x0000000000400000-0x000000000040A000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Java\jdk-1.8\lib\tools.jar.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-crt-environment-l1-1-0.dll.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Container.exe.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\System.DirectoryServices.dll.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\Java\jdk-1.8\bin\schemagen.exe.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\Microsoft Office\root\Integration\C2RInt.16.msi.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\wsdetect.dll.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\management-agent.jar.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019MSDNR_Retail-ul-oob.xrm-ms.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\7-Zip\Lang\ps.txt.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\Common Files\System\msadc\en-US\msdaprsr.dll.mui.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Net.ServicePoint.dll.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Text.Encodings.Web.dll.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\Java\jdk-1.8\include\win32\jni_md.h.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\BORDERS\MSART9.BDR.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\Microsoft.WindowsDesktop.App.deps.json.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\images\cursors\win32_LinkDrop32x32.gif.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\Java\jdk-1.8\legal\javafx\public_suffix.md.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_OEM_Perp-ppd.xrm-ms.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_OEM_Perp4-ul-oob.xrm-ms.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-profile-l1-1-0.dll.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\tr\PresentationCore.resources.dll.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\bcel.md.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\Java\jdk-1.8\jvisualvm.txt.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365EduCloudEDUR_Subscription-pl.xrm-ms.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProfessionalR_Trial-ppd.xrm-ms.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\7-Zip\Lang\kk.txt.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-console-l1-1-0.dll.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ja\System.Windows.Controls.Ribbon.resources.dll.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\it\WindowsBase.resources.dll.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PersonalR_OEM_Perp-ppd.xrm-ms.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\Java\jre-1.8\lib\ext\zipfs.jar.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_Retail-ul-phn.xrm-ms.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_SubTrial5-ul-oob.xrm-ms.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\StandardVL_KMS_Client-ul-oob.xrm-ms.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProO365R_SubTest-ul-oob.xrm-ms.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_OEM_Perp2-ul-phn.xrm-ms.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\ExcelLogo.contrast-white_scale-100.png.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\7-Zip\Lang\az.txt.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-crt-filesystem-l1-1-0.dll.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentVNextR_Retail-ul-oob.xrm-ms.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OneNoteVL_MAK-ul-phn.xrm-ms.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Professional2019DemoR_BypassTrial180-ul-oob.xrm-ms.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\WinWordLogoSmall.contrast-black_scale-80.png.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\thaidict.md.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\javafx.properties.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_ConsumerSub_Bypass30-ul-oob.xrm-ms.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdXC2RVL_MAKC2R-ul-phn.xrm-ms.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\ipcsecproc.dll.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\Java\jre-1.8\bin\t2k.dll.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Access2019R_OEM_Perp-ul-oob.xrm-ms.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProfessionalDemoR_BypassTrial180-ppd.xrm-ms.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\Microsoft.CSharp.dll.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Drawing.Primitives.dll.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\cs\UIAutomationProvider.resources.dll.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\it\WindowsFormsIntegration.resources.dll.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-crt-environment-l1-1-0.dll.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019VL_KMS_Client_AE-ppd.xrm-ms.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\PSRCHPHN.DAT.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Diagnostics.TraceSource.dll.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Text.Encoding.CodePages.dll.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_Retail-ul-oob.xrm-ms.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\ClientARMRefer2019_eula.txt.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\mscss7fr.dll.tmp	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.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	4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe

C:\Users\Admin\AppData\Local\Temp\4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe
"C:\Users\Admin\AppData\Local\Temp\4db8db0acfc6b548853ddc5ef8989d35aa7445ca708a2843d5399388fb9b8d0eN.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:3708

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-1-5-21-355097885-2402257403-2971294179-1000\desktop.ini.tmp

Filesize
28KB

MD5
b9a10da554369b22d0a15a0a5e64ab7d

SHA1
83a42975e5512b4ef6d80644799d78324caa7c7f

SHA256
280df87d25c744db0c4805c9d8609106278e35a27a47a97691acba4c0e5afac7

SHA512
2e31400ef0696a932546261d109bff5649ef31add49176ef1ee6089d49c2feb367ace0e76ade95b40821aa94f1b2c9c8d97b8505550ee7643010040640d8ea76

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

Filesize
127KB

MD5
4fa7f3885d05f9b18f8c73102cc7b884

SHA1
50030e530c5c70570c011573e95d59de6af4ed1d

SHA256
0dba7865be56a75f8bf6dba87179c12c00814a7f0f4b64a5e4c379a8989d583f

SHA512
b6aea482cdb1a7bb7086d71386628037608c0dfadbd165fa7edb3657a3a880b92d4de4a1c8669e5dccb8b73607b707611bc692f8810910132fe2f00da97f7f5d

Download Submit
memory/3708-0-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/3708-928-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download