821554de9f2716b78b19b251e7308e975dc8693703b66593a661366e16c912ac

Analysis

max time kernel
120s
max time network
103s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
25/07/2024, 19:39

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

effd76e9c500e29440f57ccf879f7820N.exe
Size

88KB
MD5

effd76e9c500e29440f57ccf879f7820
SHA1

39dd16595d4bfbdf96f28802bc330afe37c44408
SHA256

821554de9f2716b78b19b251e7308e975dc8693703b66593a661366e16c912ac
SHA512

f28c47952ccef0ab5df00829a1caebb5a9ce4901d5cca856f9d9ad33fdab0fd8533354d5a4f7f3522480e06c2416be6736276667364aa3a0add9a7fce1647f96
SSDEEP

1536:V7Zf/FAxTWY1++PJHJXA/OsIZfzc3/Q8zxSL3duXdXp:fnyiQSo5LwtZ

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4203) 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/2556-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023488-2.dat	upx
behavioral2/files/0x0014000000022912-6.dat	upx
behavioral2/memory/2556-1594-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Microsoft Office\root\Client\api-ms-win-crt-time-l1-1-0.dll.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStd2019VL_KMS_Client_AE-ul-oob.xrm-ms.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\System.Windows.Forms.dll.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Runtime.Extensions.dll.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\7-Zip\Lang\sr-spl.txt.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.IO.Compression.FileSystem.dll.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\javafx\libffi.md.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\Java\jre-1.8\bin\rmiregistry.exe.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_SubTest2-pl.xrm-ms.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusR_OEM_Perp3-ul-phn.xrm-ms.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\Common Files\System\Ole DB\sqloledb.dll.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Runtime.Numerics.dll.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\Java\jre-1.8\bin\net.dll.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\Java\jre-1.8\LICENSE.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudent2019R_OEM_Perp-ppd.xrm-ms.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_O16ConsumerPerp_Bypass30-ul-oob.xrm-ms.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\main\zh-changjei.xml.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\de\UIAutomationTypes.resources.dll.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hant\PresentationCore.resources.dll.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\Java\jdk-1.8\javafx-src.zip.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\plugin.jar.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\7-Zip\Lang\cs.txt.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\extcheck.exe.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Runtime.Loader.dll.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Xml.Serialization.dll.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-core-heap-l1-1-0.dll.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_SubTrial2-pl.xrm-ms.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Outlook2019VL_MAK_AE-ppd.xrm-ms.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\Common Files\System\ado\msado60.tlb.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStd2019VL_KMS_Client_AE-ul.xrm-ms.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\mashupcompression.dll.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\tr\System.Windows.Forms.resources.dll.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStd2019R_Grace-ppd.xrm-ms.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\de\WindowsBase.resources.dll.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.vi-vn.dll.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\Common Files\System\Ole DB\en-US\oledb32r.dll.mui.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\it\PresentationCore.resources.dll.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-crt-heap-l1-1-0.dll.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdVL_KMS_Client-ul-oob.xrm-ms.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\7-Zip\Lang\vi.txt.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\PresentationFramework.Aero.dll.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.106\MEIPreload\manifest.json.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\Java\jre-1.8\lib\deploy\messages_it.properties.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusEDUR_Subscription-ppd.xrm-ms.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\Common Files\System\ado\msadox28.tlb.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.SapBwProvider.dll.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pl\ReachFramework.resources.dll.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.en-us.dll.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hant\WindowsFormsIntegration.resources.dll.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\7-Zip\Lang\ps.txt.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ko\System.Windows.Forms.resources.dll.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-crt-conio-l1-1-0.dll.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-crt-string-l1-1-0.dll.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Runtime.CompilerServices.Unsafe.dll.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ja\UIAutomationTypes.resources.dll.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\7-Zip\Lang\ro.txt.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ko\UIAutomationClient.resources.dll.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\tr\UIAutomationTypes.resources.dll.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\serialver.exe.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\fonts\LucidaSansRegular.ttf.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-crt-utility-l1-1-0.dll.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\7-Zip\Lang\sl.txt.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Reflection.dll.tmp	effd76e9c500e29440f57ccf879f7820N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\jdk\colorimaging.md.tmp	effd76e9c500e29440f57ccf879f7820N.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	effd76e9c500e29440f57ccf879f7820N.exe

C:\Users\Admin\AppData\Local\Temp\effd76e9c500e29440f57ccf879f7820N.exe
"C:\Users\Admin\AppData\Local\Temp\effd76e9c500e29440f57ccf879f7820N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
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

Loading Replay Monitor...

Downloads

C:\$Recycle.Bin\S-1-5-21-3419463127-3903270268-2580331543-1000\desktop.ini.tmp

Filesize
89KB

MD5
b02e3e3166ad2d67167a4e4210d0adab

SHA1
fc1969a1b02cf9e23b9dfe1644b432c26032c08d

SHA256
774fb7798b14781cd70025955b81c57249d80f975a0bde7c4a556aab6432e435

SHA512
3c8fc9c855eff5e3ccfe2ada999d67c8eeed282c9df6a20ec4be79ed420405799ea5636d344dd90ae5c6fb42e0a0bc5d474e6e6180e05ab8fdae54e2333fe522

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

Filesize
188KB

MD5
724c517d505a68c7d46b5bdac2f37cbf

SHA1
458928bc154241c391b5202c3559a78b39b17358

SHA256
3b0b1259eb02cc786a4d27ff425ba45306a4c8ee458124ab5bf852f7fd7f4420

SHA512
e310062ba0e301dcc72ae7f51b5a4c1cd3d442795cb8740c0f69c389f4a3fc3b133b38243055361972e66384e88dc7ec1cb5a7412c5fdcc5b5e354d5a0c74ce8

Download Submit
memory/2556-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2556-1594-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download