b524e3ed3bab2f1183b2a1e4c132992b7b42dd3fbb120a6ef2920c7ab899c99a

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
02-09-2024 12:56

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General

Target

ab09fa6ffde15530935106f67d2b4090N.exe
Size

25KB
MD5

ab09fa6ffde15530935106f67d2b4090
SHA1

2bb3356c7e15251f838455d4815ac74697363bda
SHA256

b524e3ed3bab2f1183b2a1e4c132992b7b42dd3fbb120a6ef2920c7ab899c99a
SHA512

e9f07b01990b596deb445cb0e3a31694c62a45f77db6b6c88f64bf4ff439f92a47d3bb093bd7c10517b6e09fafb5e239c32734cf8d23980d8c467641d9538cc9
SSDEEP

384:QOlIBXDaU7CPKK0TIhfJJ1Evd5BvhzaM9mSIEvd5BvhzaM9mSsxmMxm9+9O:kBT37CPKKdJJ1EXBwzEXBwdcMcI9O

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4678) 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/4420-0-0x0000000000400000-0x000000000040A000-memory.dmp	upx
behavioral2/files/0x00090000000233b3-2.dat	upx
behavioral2/files/0x00040000000228de-6.dat	upx
behavioral2/memory/4420-995-0x0000000000400000-0x000000000040A000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudent2019R_OEM_Perp-pl.xrm-ms.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\Common Files\System\msadc\msadcor.dll.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Resources.Reader.dll.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Windows.dll.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hant\UIAutomationProvider.resources.dll.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\7-Zip\Lang\sk.txt.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ko\System.Xaml.resources.dll.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019DemoR_BypassTrial180-ppd.xrm-ms.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\IFDPINTL.DLL.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_Subscription3-ul-oob.xrm-ms.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\mscordaccore_amd64_amd64_7.0.1624.6629.dll.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Net.WebHeaderCollection.dll.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\PresentationFramework.Aero2.dll.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\WidevineCdm\_platform_specific\win_x64\widevinecdm.dll.sig.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Reflection.Extensions.dll.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\images\cursors\win32_LinkDrop32x32.gif.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\Java\jre-1.8\bin\j2gss.dll.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\vi\msipc.dll.mui.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProVL_KMS_Client-ul.xrm-ms.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\EduWorks Data Streamer Add-In\Microsoft.Office.Tools.Common.dll.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\it-IT\tipresx.dll.mui.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ShapeCollector.exe.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pt-BR\ReachFramework.resources.dll.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pl\PresentationCore.resources.dll.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\javaws.exe.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\server\Xusage.txt.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\PREVIEWTEMPLATE2.POTX.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Net.Http.dll.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hans\UIAutomationProvider.resources.dll.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\es\System.Windows.Forms.Primitives.resources.dll.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\es-419.pak.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\OMICAUTINTL.DLL.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\dotnet\host\fxr\6.0.27\hostfxr.dll.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_SubTrial4-ul-oob.xrm-ms.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PublisherR_OEM_Perp-ul-phn.xrm-ms.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Standard2019MSDNR_Retail-ul-oob.xrm-ms.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\netstandard.dll.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Dynamic.Runtime.dll.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-crt-convert-l1-1-0.dll.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\concrt140.dll.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\Common Files\System\msadc\msdaremr.dll.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Runtime.Serialization.Json.dll.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\PenImc_cor3.dll.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\AccessVL_MAK-ul-oob.xrm-ms.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\7-Zip\Lang\da.txt.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\ServiceWatcherSchedule.xml.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProR_Trial-ul-oob.xrm-ms.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\AppVIsvStreamingManager.dll.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\security\policy\unlimited\local_policy.jar.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudent2019R_Trial-ul-oob.xrm-ms.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Professional2019R_PrepidBypass-ppd.xrm-ms.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PublisherR_Trial-ppd.xrm-ms.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\POWERPNT_COL.HXC.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\ExcelLogo.contrast-black_scale-100.png.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\PresentationFramework-SystemXmlLinq.dll.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pl\System.Windows.Forms.Design.resources.dll.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-file-l1-2-0.dll.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\Java\jdk-1.8\lib\ct.sym.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Security.Cryptography.X509Certificates.dll.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\pl\msipc.dll.mui.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\da.pak.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Outlook2019R_Grace-ppd.xrm-ms.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\AUDIOSEARCHLTS.DLL.tmp	ab09fa6ffde15530935106f67d2b4090N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\Microsoft.CSharp.dll.tmp	ab09fa6ffde15530935106f67d2b4090N.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	ab09fa6ffde15530935106f67d2b4090N.exe

C:\Users\Admin\AppData\Local\Temp\ab09fa6ffde15530935106f67d2b4090N.exe
"C:\Users\Admin\AppData\Local\Temp\ab09fa6ffde15530935106f67d2b4090N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:4420

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-1-5-21-2718105630-359604950-2820636825-1000\desktop.ini.tmp

Filesize
25KB

MD5
d6ad40015b70d6a322dc8d2fc8aeded9

SHA1
ef248952471cae999d611263412ce7f438a561af

SHA256
6113f8f66055736b979376b6436151ce8e85e83421554689233663a567571f25

SHA512
e77364853906c3baa5ea691b978ace024fd98d26927b235df433e08bf220ad9a800c1b483a139d5f47e7519445c6e6692d1c6a948096eac1c9910b98d8e1526e

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

Filesize
124KB

MD5
e333046ba4562d9ec6a207bee44d0378

SHA1
970a03c16b8c1059ffc6011b179b9bedf0a31725

SHA256
4e537bdcbe2af189a1568e53122502623103beea510d77f007ed085c14e3bc2a

SHA512
0ef0e05ae52fdfa841d7b45523f5e23a4f72f472ebedc9a326ee06946dd83f8eb0e297b216c11cf64804b45c097be787212bb7af3222c873d4ec7c64a31ee93f

Download Submit
memory/4420-0-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/4420-995-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download