c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be

Analysis

max time kernel
150s
max time network
108s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
26-07-2024 03:15

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General

Target

c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
Size

35KB
MD5

241788ee7aacd49f4cdc3f10ec04257d
SHA1

8b6bd9b5fb1cd3abe582a231e412b82dff021579
SHA256

c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be
SHA512

e8a27e8b94ba6899b6407b511886f513d42ce8662d37bf64fec7baec350b49bb00c71598464fa0cbbe1d723a2000204aef47bd9d45f0bdb17360c3d21fc29c1e
SSDEEP

768:kBT37CPKKdJJTU3U2l4SW7afHFCSW7afHFkK5c5+MN:CTW7JJTU3UFSWu0SWuB6sMN

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4842) 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/4832-0-0x0000000000400000-0x000000000040A000-memory.dmp	upx
behavioral2/files/0x00090000000233f5-2.dat	upx
behavioral2/files/0x0014000000022923-6.dat	upx
behavioral2/memory/4832-972-0x0000000000400000-0x000000000040A000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Microsoft Office\root\Licenses16\Word2019R_OEM_Perp-ul-phn.xrm-ms.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\pt\msipc.dll.mui.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.106\Locales\el.pak.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\Java\jdk-1.8\bin\wsgen.exe.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\PresentationFramework.Classic.dll.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\Microsoft Office\root\Client\api-ms-win-crt-conio-l1-1-0.dll.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_Retail3-pl.xrm-ms.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\Microsoft Office\root\Office16\api-ms-win-core-xstate-l2-1-0.dll.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\Microsoft.Win32.Primitives.dll.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Net.Security.dll.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\Java\jre-1.8\lib\images\cursors\win32_LinkDrop32x32.gif.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdR_OEM_Perp-pl.xrm-ms.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\7-Zip\Lang\ms.txt.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\Java\jre-1.8\lib\deploy\[email protected]	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Colors\Orange.xml.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProR_Retail-ppd.xrm-ms.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\InputPersonalization.exe.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\UIAutomationClient.dll.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\prism_common.dll.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\sunmscapi.dll.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\Java\jre-1.8\lib\charsets.jar.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_O17EnterpriseVL_Bypass30-ul-oob.xrm-ms.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\ExcelLogo.scale-80.png.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\hr\msipc.dll.mui.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Runtime.Numerics.dll.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hant\UIAutomationClient.resources.dll.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\Java\jdk-1.8\legal\jdk\jcup.md.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusinessEntryR_PrepidBypass-ppd.xrm-ms.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\prism_d3d.dll.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\unicode.md.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Buffers.dll.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_OEM_Perp4-ppd.xrm-ms.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_Subscription1-pl.xrm-ms.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdR_Retail-ppd.xrm-ms.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\WinWordLogoSmall.contrast-black_scale-180.png.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-datetime-l1-1-0.dll.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\Microsoft.VisualBasic.Core.dll.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\System.Windows.Presentation.dll.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\Internet Explorer\ja-JP\iexplore.exe.mui.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OutlookR_Retail-ul-oob.xrm-ms.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_OEM_Perp2-ppd.xrm-ms.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019R_Grace-ppd.xrm-ms.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-handle-l1-1-0.dll.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Collections.Specialized.dll.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_Subscription4-ul-oob.xrm-ms.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\WordR_Retail-ppd.xrm-ms.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-core-debug-l1-1-0.dll.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Excel2019R_Trial-ppd.xrm-ms.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_OEM_Perp3-ul-phn.xrm-ms.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019XC2RVL_MAKC2R-ul-oob.xrm-ms.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pl\System.Windows.Input.Manipulations.resources.dll.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\Microsoft Office\root\Integration\C2RManifest.OSM.OSM.x-none.msi.16.x-none.xml.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\Java\jre-1.8\lib\deploy\messages_zh_HK.properties.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_SubTrial2-ul-oob.xrm-ms.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\Common Files\System\msadc\adcjavas.inc.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\ext\jfxrt.jar.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\client-issuance-root-bridge-test.xrm-ms.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentR_Retail-ul-oob.xrm-ms.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\Common Files\System\msadc\en-US\msdaremr.dll.mui.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\System.Security.Cryptography.Pkcs.dll.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\ONENOTE_K_COL.HXK.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Runtime.CompilerServices.VisualC.dll.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\CLVWINTL.DLL.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
File created	C:\Program Files\Microsoft Office\root\Office16\Configuration\config.xml.tmp	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.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	c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe

C:\Users\Admin\AppData\Local\Temp\c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe
"C:\Users\Admin\AppData\Local\Temp\c77ddd9cf85c0da7e1147a6558b0785ac3f0017f91721d20a148fe04a096a5be.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:4832

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-1-5-21-701583114-2636601053-947405450-1000\desktop.ini.tmp

Filesize
35KB

MD5
1e612560de52a45abe39b96ba80e2d22

SHA1
be34f17de48da3752c05b66f87538ba541fa018d

SHA256
52f996e9a80f60937deb17b39cdeb28dd9608e852d1a789f5b77078583b3bc12

SHA512
6bf673e2c4dd7a5c4d41a3f404cbceb1752a8c4f3c30bb16e5da610c50664bc13987f9dcb228f7dce5988898108f8d0cf491ab18817967a4604f28eff680c6b6

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

Filesize
134KB

MD5
d9242f0e0449ee4faa46d0d24a8f1789

SHA1
8763cc53b314d64f4569cd4e1d352c19095da9ef

SHA256
801b9c3e9bbe0837717f645de8e185d21b3a0612a58a7da3a21ce0d3f9a07d91

SHA512
859ab14dc32dadc480af2bd35a54c55483e7b7d1e685d01694687cf41942644e91c7c026ccb61c86e379abe2f2160493b6d5687f79a87afe345feae89632f617

Download Submit
memory/4832-0-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/4832-972-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download