216648e539a3f6e7c21bdd0f0fb7e9329886c0f05d21cfa9fc9042e777d4490e

Analysis

max time kernel
120s
max time network
123s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
03/09/2024, 13:34

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General

Target

c793aeb4de5306c17e956215c31c7cc0N.exe
Size

67KB
MD5

c793aeb4de5306c17e956215c31c7cc0
SHA1

512ca3fd98e266f278f3cf4ffec62782b8ca6923
SHA256

216648e539a3f6e7c21bdd0f0fb7e9329886c0f05d21cfa9fc9042e777d4490e
SHA512

a40b702958a1de609e1d09be638b4b74e2b25344159dc1ef4630dd13337d8ffefa3cae7a556dbadd3b6c7ad11052960fcc00494c7cc4c10b7b5f0fbbbefdb2b8
SSDEEP

1536:CTWn1++PJHJXA/OsIZfzc3/Q8zx4LgLTorob:KQSoFcvorob

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4382) 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/808-0-0x0000000000400000-0x000000000040A000-memory.dmp	upx
behavioral2/files/0x00090000000233eb-2.dat	upx
behavioral2/files/0x0004000000022933-6.dat	upx
behavioral2/memory/808-848-0x0000000000400000-0x000000000040A000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ja\System.Windows.Forms.resources.dll.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-console-l1-2-0.dll.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Standard2019R_Grace-ul-oob.xrm-ms.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-crt-convert-l1-1-0.dll.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.ComponentModel.Primitives.dll.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\PresentationNative_cor3.dll.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdCO365R_SubTest-ppd.xrm-ms.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\jdk\lcms.md.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\Java\jdk-1.8\lib\jvm.lib.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_OEM_Perp2-ppd.xrm-ms.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\7-Zip\Lang\fi.txt.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ja\UIAutomationTypes.resources.dll.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\Microsoft Office\Office16\OSPP.VBS.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProCO365R_SubTest-pl.xrm-ms.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdVL_MAK-ul-oob.xrm-ms.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Cartridges\sql90.xsl.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\GKPowerPoint.dll.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\mscordaccore.dll.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ko\UIAutomationClient.resources.dll.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\prism_common.dll.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019MSDNR_Retail-ul-oob.xrm-ms.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\Microsoft.DiaSymReader.Native.amd64.dll.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ko\System.Windows.Forms.Primitives.resources.dll.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\Internet Explorer\fr-FR\ieinstal.exe.mui.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Container.exe.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.SapBwProvider.dll.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\7-Zip\Lang\et.txt.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Xml.XmlSerializer.dll.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\StandardR_Trial-ul-oob.xrm-ms.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Reflection.Emit.ILGeneration.dll.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\D3DCompiler_47_cor3.dll.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\w2k_lsa_auth.dll.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusinessEntry2019R_PrepidBypass-ul-oob.xrm-ms.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\IEAWSDC.DLL.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\7-Zip\Lang\hy.txt.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\ClientCapabilities.json.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\oskclearui\oskclearuibase.xml.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\jdk\cldr.md.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ExcelR_Retail-ul-phn.xrm-ms.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019VL_KMS_Client_AE-ul.xrm-ms.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProO365R_Subscription-ul-oob.xrm-ms.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdCO365R_SubTest-pl.xrm-ms.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\api-ms-win-crt-string-l1-1-0.dll.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\Common Files\Services\verisign.bmp.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Net.WebClient.dll.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\PresentationFramework-SystemDrawing.dll.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-profile-l1-1-0.dll.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProCO365R_Subscription-ul-oob.xrm-ms.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdXC2RVL_MAKC2R-ul-oob.xrm-ms.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\Common Files\System\ado\en-US\msader15.dll.mui.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\Common Files\System\Ole DB\fr-FR\sqloledb.rll.mui.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\libGLESv2.dll.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\JoinStart.tmp.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019R_OEM_Perp-ppd.xrm-ms.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019R_Trial-ppd.xrm-ms.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_Subscription5-pl.xrm-ms.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019MSDNR_Retail-ul-oob.xrm-ms.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\Microsoft.NETCore.App.deps.json.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\cs\System.Windows.Controls.Ribbon.resources.dll.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-sysinfo-l1-1-0.dll.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-core-namedpipe-l1-1-0.dll.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\ext\sunmscapi.jar.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudent2019DemoR_BypassTrial180-ul-oob.xrm-ms.tmp	c793aeb4de5306c17e956215c31c7cc0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusR_OEM_Perp3-ul-oob.xrm-ms.tmp	c793aeb4de5306c17e956215c31c7cc0N.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	c793aeb4de5306c17e956215c31c7cc0N.exe

C:\Users\Admin\AppData\Local\Temp\c793aeb4de5306c17e956215c31c7cc0N.exe
"C:\Users\Admin\AppData\Local\Temp\c793aeb4de5306c17e956215c31c7cc0N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:808

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-1-5-21-1194130065-3471212556-1656947724-1000\desktop.ini.tmp

Filesize
67KB

MD5
28e1c91e14fa29659e5dc141e640e96b

SHA1
4ea4c488797c70f614873b1b6081a3822d052f6b

SHA256
61769b620ff8d03e75e5c302c1efa62d92a68aaffaf73a72a935ec9fc6ca485c

SHA512
82bd5abd0bc406c9b64ee1a6a7c0038310b8c55b446a6b6bf548a65c1fea908cf73c9ba7b5267f88c099ec443d8c09d7d92196bc7b1d7352a58e2d8cccbdfa88

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

Filesize
166KB

MD5
24512c05f72b425c57563ada152e1372

SHA1
816f3843bfb09489bac37a0954dae01360a67de7

SHA256
17d7cdf3588145a2582e5e31565282a1c9fcb98dde115f7bf7a85b1bb1f6ab8d

SHA512
f1c8810da4e8448abdf4df626fcd5d00f68af92aba44cb95c2af60140c6423d22fe2a9cd489677e0ca1a5a3b6897db93650600e0a405a2aedb17f42a181d4439

Download Submit
memory/808-0-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/808-848-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download