b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
08-09-2024 04:06

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General

Target

b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
Size

81KB
MD5

3837c74ecdcdca54d182b17aa48a0d19
SHA1

a655eb7b01e4454dc356cc03a3f3161b1e3246e0
SHA256

b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe
SHA512

8e954c90aec62be35cd7b9cdd749e8a3c4c1b626f2e16e6fb00e19e0c8720beab922ba9fef501ed634e07d3b84e9ade821e9dac78dc0f07ada8c1977a2bddb83
SSDEEP

768:V7Blpf/FAK65euBT37CPKKQSjyJJ1EXBwzEXBwdcMcI9B6r7BT37CPKKdJJ1EXB2:V7Zf/FAxTWoJJ7TOtTW7JJ7TOF+C+r

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (5032) 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/916-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0009000000023465-2.dat	upx
behavioral2/files/0x000c0000000220a6-6.dat	upx
behavioral2/memory/916-860-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\microsoft shared\ink\es-MX\tipresx.dll.mui.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\uk-UA\TipRes.dll.mui.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\FirstRunLogoSmall.scale-140.png.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\OneNoteLogoSmall.contrast-black_scale-140.png.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PowerPointVL_KMS_Client-ul.xrm-ms.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Professional2019R_Retail-ppd.xrm-ms.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProCO365R_Subscription-pl.xrm-ms.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Runtime.CompilerServices.Unsafe.dll.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Reflection.Emit.ILGeneration.dll.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pl\System.Windows.Controls.Ribbon.resources.dll.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Colors\Red Orange.xml.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_OEM_Perp-ul-phn.xrm-ms.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.Office.PowerPivot.ExcelAddIn.dll.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSOARIANEXT.DLL.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\7-Zip\Lang\zh-cn.txt.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ipsjpn.xml.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Runtime.dll.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-crt-convert-l1-1-0.dll.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hant\Microsoft.VisualBasic.Forms.resources.dll.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019XC2RVL_MAKC2R-ppd.xrm-ms.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\Microsoft Office\root\Office16\sdxs\FA000000018\cardview\lib\native-common\assets\[email protected]	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\7-Zip\Lang\ro.txt.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\.version.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProR_OEM_Perp-ppd.xrm-ms.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-file-l1-2-0.dll.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\Microsoft Office\root\Office16\api-ms-win-crt-multibyte-l1-1-0.dll.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\Microsoft Office\root\Office16\CHART.DLL.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\de-DE\TipRes.dll.mui.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019MSDNR_Retail-ppd.xrm-ms.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.OAuth.dll.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Power Map Excel Add-in\MICROSOFT.DATA.RECOMMENDATION.COMMON.DLL.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.AnalysisServices.Excel.BackEnd.dll.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\Microsoft Office\root\Office16\api-ms-win-crt-runtime-l1-1-0.dll.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\TellMeOneNote.nrr.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\Microsoft Office\root\Office16\api-ms-win-core-timezone-l1-1-0.dll.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\Microsoft Office\root\Office16\sdxs\FA000000049\StoreLogo.png.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ru\PresentationFramework.resources.dll.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\PresentationFramework.Luna.dll.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-core-memory-l1-1-0.dll.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\Java\jre-1.8\legal\jdk\xalan.md.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdCO365R_SubTrial-ppd.xrm-ms.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\Microsoft Office\root\Integration\C2RInt.16.msi.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProCO365R_Subscription-ppd.xrm-ms.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\offsymxb.ttf.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\Microsoft Office\root\Office16\Bibliography\Sort\AUTHOR.XSL.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\Common Files\System\ado\ja-JP\msader15.dll.mui.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-core-rtlsupport-l1-1-0.dll.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\SkypeForBusinessVDI2019_eula.txt.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Power View Excel Add-in\Microsoft.PowerBI.AdomdDataExtension.dll.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\Microsoft Office\root\Office16\PAGESIZE\PGMN110.XML.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\7-Zip\Lang\kk.txt.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Effects\Subtle Solids.eftx.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Publisher2019R_OEM_Perp-ul-phn.xrm-ms.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.Excel.AnalysisServices.AdomdClientUI.dll.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\WordVL_MAK-pl.xrm-ms.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\ONENOTE.HXS.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\Microsoft Office\root\Office16\PAGESIZE\PGLBL109.XML.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Net.WebHeaderCollection.dll.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\cs\UIAutomationTypes.resources.dll.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\Java\jdk-1.8\bin\wsimport.exe.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\deploy\messages_zh_HK.properties.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_Subscription4-ppd.xrm-ms.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\Microsoft Office\root\Office16\PROOF\MSGR8FR.LEX.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_Subscription5-ul-oob.xrm-ms.tmp	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.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	b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe

C:\Users\Admin\AppData\Local\Temp\b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe
"C:\Users\Admin\AppData\Local\Temp\b93273c3aa8b3a779fe53baf1edbfa35d6aebf23c28a787219d364eaa33f3abe.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:916

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

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Downloads

C:\$Recycle.Bin\S-1-5-21-523280732-2327480845-3730041215-1000\desktop.ini.tmp

Filesize
81KB

MD5
61ca9fd52c8b05932f8c1919001109f0

SHA1
5bb3c72ca031e4f79df69a4f40f9e18fc2dc9c75

SHA256
d0737b2ad1e85c88cddca5cab9f8ce37fd785fac5f0bfdb4debc77c91b831ac1

SHA512
e3564500814737589b60c2b1eacecbd015968838dc8f6dbd14512548587b36230922311b8ee70188ab08d591876d0a2b216095dda5086d2607054f2d5c2c11e6

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

Filesize
180KB

MD5
33430ad0901d88700c00268954d4e822

SHA1
46c775d72a4cb9d14cdb4d872c45cb0eee9bbe05

SHA256
cad3e9da529bcba7bcdb16472aeefa8c29ffdea30427855fe4e9f91acc539721

SHA512
46abeede1a1aa95c0adf7c00d2e57b32310771d1a21d99b05b595105a77f37955dfaaf8ea4721befadbc886d9463347d1e1fe1adfd34d0f9f032a163e371e37f

Download Submit
memory/916-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/916-860-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download