c59e1f1d9df4e6df6e6e89b885d2a7dbdaa40022dbb57d29f73089da28483606

Analysis

max time kernel
120s
max time network
95s
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, 20:23

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General

Target

b096f159a1610d992aab241f047e0640N.exe
Size

79KB
MD5

b096f159a1610d992aab241f047e0640
SHA1

00617759eb21bbaae1b16fdff2ebde8abfb8d239
SHA256

c59e1f1d9df4e6df6e6e89b885d2a7dbdaa40022dbb57d29f73089da28483606
SHA512

f2285580bb195cd5877e15caadf4ef1dac5a4727628d5f079868b9e868d9a47195fc7ad2d8dea9bb15a1103345439bd9ce284f151bcfc99d5a94fba073504c14
SSDEEP

1536:CTWn1++PJHJXA/OsIZfzc3/Q8zxY5eYq3+83+BW7quqW:KQSox5y3+83+YquqW

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4650) 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/4384-0-0x0000000000400000-0x000000000040A000-memory.dmp	upx
behavioral2/files/0x00090000000234a6-2.dat	upx
behavioral2/files/0x0008000000023500-6.dat	upx
behavioral2/memory/4384-864-0x0000000000400000-0x000000000040A000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\ado\adovbs.inc.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.IO.MemoryMappedFiles.dll.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hant\ReachFramework.resources.dll.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Personal2019R_OEM_Perp-ppd.xrm-ms.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PersonalDemoR_BypassTrial180-ppd.xrm-ms.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.SapBwProvider.dll.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\7-Zip\Lang\lv.txt.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\ClientCapabilities.json.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\dotnet\host\fxr\7.0.16\hostfxr.dll.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\de\UIAutomationClient.resources.dll.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\GRAPH_COL.HXT.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MEDIA\COIN.WAV.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-crt-stdio-l1-1-0.dll.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\Java\jre-1.8\bin\fontmanager.dll.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\7-Zip\Lang\sl.txt.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\7-Zip\Lang\vi.txt.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ja-JP\tabskb.dll.mui.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Net.Http.dll.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\it\System.Windows.Forms.Design.resources.dll.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\PresentationNative_cor3.dll.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\Java\jre-1.8\lib\deploy\splash.gif.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-0090-0000-1000-0000000FF1CE.xml.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_SubTrial4-ppd.xrm-ms.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Standard2019VL_KMS_Client_AE-ppd.xrm-ms.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\Interceptor.dll.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pl\UIAutomationClientSideProviders.resources.dll.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-crt-filesystem-l1-1-0.dll.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\WacLangPack2019Eula.txt.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\msvcr120.dll.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\client-issuance-ul.xrm-ms.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.Excel.ReportingServices.DataExtensions.dll.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.ru-ru.dll.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\de-DE\TipTsf.dll.mui.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ipsen.xml.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\Common Files\System\msadc\msadds.dll.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\es\System.Xaml.resources.dll.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\Microsoft Office\root\Client\vcruntime140.dll.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.ja-jp.dll.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_Subscription3-ul-oob.xrm-ms.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.IO.Packaging.dll.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\deploy\messages_pt_BR.properties.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\msix.dll.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Private.DataContractSerialization.dll.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Numerics.dll.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Runtime.Intrinsics.dll.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\cs\UIAutomationClient.resources.dll.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\fr\WindowsFormsIntegration.resources.dll.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\Java\jre-1.8\lib\deploy\messages_zh_CN.properties.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\tipresx.dll.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\de\UIAutomationProvider.resources.dll.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\7-Zip\Lang\da.txt.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Private.Uri.dll.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\es\UIAutomationClientSideProviders.resources.dll.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-rtlsupport-l1-1-0.dll.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\Microsoft Office\root\Client\AppVDllSurrogate64.exe.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019XC2RVL_MAKC2R-ppd.xrm-ms.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hans\System.Windows.Controls.Ribbon.resources.dll.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Container.exe.config.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProO365R_Subscription-pl.xrm-ms.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\da\msipc.dll.mui.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\zh-TW\msipc.dll.mui.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\it\UIAutomationProvider.resources.dll.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\nb.pak.tmp	b096f159a1610d992aab241f047e0640N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_OEM_Perp-ul-phn.xrm-ms.tmp	b096f159a1610d992aab241f047e0640N.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	b096f159a1610d992aab241f047e0640N.exe

C:\Users\Admin\AppData\Local\Temp\b096f159a1610d992aab241f047e0640N.exe
"C:\Users\Admin\AppData\Local\Temp\b096f159a1610d992aab241f047e0640N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:4384

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

Filesize
79KB

MD5
9e052ca986cc556fc361fb71825cfeb4

SHA1
c6ad40937304910b7ad1dad7ced8e533a6fcb8f4

SHA256
efc60c853f5181b2c25523d2fbc1c2f544ba8d80ab2817db09c8064c6da25955

SHA512
56ed68292f32303c3da5d7c73d649411f800c85f4655a6bac0a74a114d32ebaad42ef7260e854de46ef9c6b510b0e1f0e6bd13391a48b56b4141030ca8d2a684

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

Filesize
178KB

MD5
6afd2401c102a32cc7281f75fd576352

SHA1
76b4cf2dd82e8c60f4c996b8844b5ebe4e99fd21

SHA256
0dbb3b2dc1fd1fddaa12e921060e8b40ab20ac27e02f7a02185a23979bf7f61b

SHA512
29ec8a0af55d39ae31b7371a64067a476cdb38cb29666a5042af2eb66eb56fd3ad6b02ab0c0573008c0e8dddfb74f991e643a9e4d755477ae1fb50cc40b20d9a

Download Submit
memory/4384-0-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/4384-864-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download