b15fb6ed5dd5f672d5187a4049fe41e1c18c8ec38c3c013f8b204ff881aa2aff

Analysis

max time kernel
119s
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
02/09/2024, 02:37

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

c7e20af461712de66036149ba969aec0N.exe
Size

36KB
MD5

c7e20af461712de66036149ba969aec0
SHA1

01b41a35535bd68ca6bd4e9fc1ec1e42c9327e1a
SHA256

b15fb6ed5dd5f672d5187a4049fe41e1c18c8ec38c3c013f8b204ff881aa2aff
SHA512

161d8e3db83d883eafde98c35cb0479097f4b766d2c7c38ffe94b9adea3f1ea2eca436af63c50b82817ab3e03ae041f377919b52b8c3f5856be0f72bb4fb9f21
SSDEEP

768:kBT37CPKKdJJ1EXBwzEXBwdcMcI9ffgT+i1xrfgT+i1xtWzbHVcoN5i1xBzbHVcc:CTW7JJ7T5YXYibmRbmm

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4683) 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/2248-0-0x0000000000400000-0x000000000040A000-memory.dmp	upx
behavioral2/files/0x00090000000234a8-2.dat	upx
behavioral2/files/0x0014000000022936-6.dat	upx
behavioral2/memory/2248-926-0x0000000000400000-0x000000000040A000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Microsoft Office\root\Office16\1033\TellMeOneNote.nrr.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\charsets.jar.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MML2OMML.XSL.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\es\msipc.dll.mui.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\msipc.dll.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\7-Zip\Lang\eo.txt.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365EduCloudEDUR_SubTrial-pl.xrm-ms.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019R_Trial-ppd.xrm-ms.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-string-l1-1-0.dll.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\sv-SE\tipresx.dll.mui.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-console-l1-1-0.dll.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\tr\PresentationUI.resources.dll.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Net.HttpListener.dll.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\pt-PT.pak.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-core-libraryloader-l1-1-0.dll.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusinessVL_MAK-pl.xrm-ms.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\Common Files\System\msadc\msdarem.dll.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-crt-convert-l1-1-0.dll.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusE5R_Subscription-ppd.xrm-ms.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\Microsoft Office\root\fre\StartMenu_Win10_RTL.mp4.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\ClientEventLogMessages.man.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\ServiceWatcherSchedule.xml.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Formats.Asn1.dll.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTrial5-ul-oob.xrm-ms.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Outlook2019VL_KMS_Client_AE-ul-oob.xrm-ms.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProR_Retail-ul-oob.xrm-ms.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Diagnostics.TextWriterTraceListener.dll.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\sr.pak.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_SubTest-ul-oob.xrm-ms.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\dtplugin\deployJava1.dll.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\javafx\libxml2.md.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\kk\msipc.dll.mui.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\main\base_heb.xml.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\tr\System.Windows.Forms.resources.dll.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\chrome_elf.dll.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Diagnostics.Tools.dll.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\Java\jdk-1.8\THIRDPARTYLICENSEREADME-JAVAFX.txt.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\offsymsb.ttf.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\excel.exe.manifest.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\en-US\mip.exe.mui.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-fibers-l1-1-0.dll.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\BORDERS\MSART9.BDR.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\tr\UIAutomationClientSideProviders.resources.dll.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PersonalR_Retail-ul-phn.xrm-ms.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdCO365R_Subscription-pl.xrm-ms.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\idlj.exe.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\rmic.exe.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Excel2019R_OEM_Perp-pl.xrm-ms.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_Retail3-ul-oob.xrm-ms.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Private.Xml.Linq.dll.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\cs\PresentationUI.resources.dll.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\tr\PresentationUI.resources.dll.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Net.WebSockets.Client.dll.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-crt-heap-l1-1-0.dll.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\tnameserv.exe.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-00E1-0000-1000-0000000FF1CE.xml.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_Subscription3-ul-oob.xrm-ms.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdR_Retail-ul-oob.xrm-ms.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusVL_MAK-ul-oob.xrm-ms.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\7-Zip\Lang\fi.txt.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\clrjit.dll.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\jfxmedia.dll.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\Microsoft Office\root\fre\StartMenu_Win7_RTL.wmv.tmp	c7e20af461712de66036149ba969aec0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusR_OEM_Perp5-pl.xrm-ms.tmp	c7e20af461712de66036149ba969aec0N.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	c7e20af461712de66036149ba969aec0N.exe

C:\Users\Admin\AppData\Local\Temp\c7e20af461712de66036149ba969aec0N.exe
"C:\Users\Admin\AppData\Local\Temp\c7e20af461712de66036149ba969aec0N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:2248

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-1-5-21-4182098368-2521458979-3782681353-1000\desktop.ini.tmp

Filesize
37KB

MD5
200265841e67811c68461b6d8868145a

SHA1
5a7a4cf25ed39117b7a4f5b8ff8d3106f401f478

SHA256
e255873a2a2123593406644217db6ed8d0fddb520e5dfee462aef7fda46df7e7

SHA512
ceec75e1a525e223279ed8720e2928f20937864c05572e5818acc277a6255a39b4a311fe12826aaa0b3cd023928471cad5aba043f34e642334aa12df707bcf4c

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

Filesize
135KB

MD5
606680fc59e29b99226ff35dfa4a3707

SHA1
a86d251b99be5f1d46aeec72a1b44995e5167f13

SHA256
4d2a4eefa111fa34b99b6df59ac02b1d031375a6aa5e8cde0c8fff273b5ad776

SHA512
561b8032aab6296ffb15489bfdc47f5a98d125115b0544683a39c1b11843bb28eaa63d67a894503b7466a209ff24437b4690b7a3e8a8113e56fb40aa8e319984

Download Submit
memory/2248-0-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/2248-926-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download