bf175bae7ae2aeefaeb6c2dbbc8db8c2e82eb8b9a4db73bb8701bbf47f10dfcd

Analysis

max time kernel
120s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
06/08/2024, 03:25

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General

Target

50917349b5fc308db222a8e1fb325980N.exe
Size

65KB
MD5

50917349b5fc308db222a8e1fb325980
SHA1

a889a6a177be476df0cb7704e2ddbdfba53a7a2c
SHA256

bf175bae7ae2aeefaeb6c2dbbc8db8c2e82eb8b9a4db73bb8701bbf47f10dfcd
SHA512

8e523fc8ca4b1dd1d1f36d8c5a01bfcf06d95b7dc2ca2fa14bf8ce71e3e67aa152c9bdcf606990fe7f2b63a4f31076abd8fb29b13d47164f94e14c18654d2649
SSDEEP

768:V7Blpf/FAK65euBT37CPKKQSjSEXBwzEXBw3sgQw58eGkz2rcuesgQw58eGkz2rQ:V7Zf/FAxTWtnMdyGdyjZj1hcaEWAIy++

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4583) 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/832-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000900000002348e-2.dat	upx
behavioral2/files/0x000c0000000220a6-6.dat	upx
behavioral2/memory/832-1832-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Java\jre-1.8\lib\cmm\PYCC.pf.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_O16ConsumerPerp_Bypass30-ppd.xrm-ms.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Personal2019DemoR_BypassTrial180-ul-oob.xrm-ms.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\EduWorks Data Streamer Add-In\MicrosoftDataStreamerforExcel.dll.config.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\ExcelLogo.scale-100.png.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\en-US\tipresx.dll.mui.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\j2pkcs11.dll.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\Microsoft.Ink.dll.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\eventlog_provider.dll.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\Java\jre-1.8\bin\ktab.exe.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProVL_MAK-ul-oob.xrm-ms.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Publisher2019R_OEM_Perp-ppd.xrm-ms.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\7-Zip\Lang\kab.txt.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\en-US\ShapeCollector.exe.mui.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\Java\jre-1.8\lib\fonts\LucidaTypewriterRegular.ttf.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_Retail-ppd.xrm-ms.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusiness2019VL_MAK_AE-ul-phn.xrm-ms.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStd2019VL_MAK_AE-ul-phn.xrm-ms.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\et-EE\tipresx.dll.mui.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\createdump.exe.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\msvcp140_2.dll.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\AccessRuntimeR_PrepidBypass-ppd.xrm-ms.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Globalization.Extensions.dll.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Outlook2019R_OEM_Perp-ppd.xrm-ms.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\fonts\LucidaSansRegular.ttf.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\Java\jre-1.8\lib\security\blacklisted.certs.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_Subscription-ul-oob.xrm-ms.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\FirstRunLogo.contrast-black_scale-80.png.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ko\System.Windows.Input.Manipulations.resources.dll.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\de\UIAutomationTypes.resources.dll.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\jdk\dynalink.md.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\Java\jre-1.8\bin\management.dll.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_Subscription2-ul-oob.xrm-ms.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\Library\Analysis\PROCDB.XLAM.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Text.Encoding.Extensions.dll.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hant\System.Windows.Forms.resources.dll.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\javafx\libxml2.md.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdO365R_SubTrial-pl.xrm-ms.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.AnalysisServices.Common.dll.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Transactions.Local.dll.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\tr\PresentationCore.resources.dll.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\dotnet\ThirdPartyNotices.txt.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-string-l1-1-0.dll.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\Java\jre-1.8\lib\security\blacklist.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OutlookVL_MAK-ul-oob.xrm-ms.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Reflection.dll.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Security.AccessControl.dll.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Organic.thmx.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_Subscription1-pl.xrm-ms.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019MSDNR_Retail-pl.xrm-ms.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\AugLoop\third-party-notices.txt.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ja\System.Windows.Forms.resources.dll.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hant\WindowsFormsIntegration.resources.dll.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\Microsoft Office\root\Client\api-ms-win-crt-private-l1-1-0.dll.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\Common Files\System\ado\adojavas.inc.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.IO.Pipes.AccessControl.dll.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-core-interlocked-l1-1-0.dll.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-core-libraryloader-l1-1-0.dll.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_SubTest2-ul-oob.xrm-ms.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Outlook2019R_OEM_Perp-ul-phn.xrm-ms.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\7-Zip\Lang\br.txt.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\ClientCapabilities.json.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\CompressConvert.vb.tmp	50917349b5fc308db222a8e1fb325980N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\SharedPerformance.man.tmp	50917349b5fc308db222a8e1fb325980N.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	50917349b5fc308db222a8e1fb325980N.exe

C:\Users\Admin\AppData\Local\Temp\50917349b5fc308db222a8e1fb325980N.exe
"C:\Users\Admin\AppData\Local\Temp\50917349b5fc308db222a8e1fb325980N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:832

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-1-5-21-523280732-2327480845-3730041215-1000\desktop.ini.tmp

Filesize
65KB

MD5
7af3e93d80af8cca28d8368f46624dc7

SHA1
9bc319e32b43e35932e504058793bd73193e0eb8

SHA256
a94be11af377eaf6792e8bb2d1fe8996fb507fb47491820e08de0345a9e4f705

SHA512
b706357249cc048831435f41dd61c961bf1ed777da4254d080303e638d1cbd7ef0fc0d41ac6390431c0d97f5ad616f00bb20e3d0b3e76d68d0679389189672ff

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

Filesize
164KB

MD5
144bc3504c77049cefa65aedd3013899

SHA1
bef9b1e67893c6cf719b43a0dec83584f23ded46

SHA256
83a1adaf6858e1c0f918a3495eccf38148c5c7e502e88d77036c9058dc98ee57

SHA512
145a285a49f94dc6e413b600dd84d89664658635301fc06deb265c0af75f1e0d54880e6097a74f6031be04f26c4a50096eb916555821eb37ec4609288f7fdc74

Download Submit
memory/832-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/832-1832-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download