3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9

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
18/08/2024, 20:22

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General

Target

3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
Size

46KB
MD5

4a4aba1915176fb134dd74f26177c0be
SHA1

f284772179ee9965e6576798590d24af5a1c16f4
SHA256

3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9
SHA512

88b52042ad0c207300b9789c003eed7711e4f257d710a3f38173bb489d03f9311ef5b211671c869c6a2b094302c0564da6f52093a531c092c531046d79159014
SSDEEP

768:kBT37CPKK1EXBwzEXBw3sgQw58eGkz2rcuesgQw58eGkz2rcu90TKe+0TKeinMdY:CTWUnMdyGdy4AnAP4R

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (5271) 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/2536-0-0x0000000000400000-0x000000000040A000-memory.dmp	upx
behavioral2/files/0x00090000000233f2-2.dat	upx
behavioral2/files/0x0014000000022912-6.dat	upx
behavioral2/memory/2536-1011-0x0000000000400000-0x000000000040A000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\WinWordLogoSmall.scale-80.png.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\Common Files\System\msadc\it-IT\msdaprsr.dll.mui.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\Java\jdk-1.8\bin\jli.dll.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\fonts\LucidaTypewriterRegular.ttf.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_OEM_Perp4-ppd.xrm-ms.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PublisherVL_KMS_Client-ul-oob.xrm-ms.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\PREVIEWTEMPLATE.POTX.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\es\System.Windows.Forms.Design.resources.dll.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hant\PresentationFramework.resources.dll.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Diagnostics.EventLog.Messages.dll.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\Java\jre-1.8\lib\images\cursors\invalid32x32.gif.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-00E2-0409-1000-0000000FF1CE.xml.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Data.dll.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\Microsoft Office\root\Office16\PROOF\msgr8en.dub.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\Common Files\System\de-DE\wab32res.dll.mui.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-core-console-l1-1-0.dll.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ONENOTE.VisualElementsManifest.xml.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\Microsoft Office\root\Office16\sdxs\FA000000027\assets\Icons\[email protected]	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\Microsoft Office\root\vfs\Fonts\private\PRISTINA.TTF.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-core-processthreads-l1-1-1.dll.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\Microsoft.VisualBasic.dll.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\tr\System.Windows.Forms.Primitives.resources.dll.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Fonts\Calibri.xml.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ja-JP\TipTsf.dll.mui.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_Retail3-ul-oob.xrm-ms.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OneNoteR_OEM_Perp-pl.xrm-ms.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\FirstRunLogo.contrast-white_scale-180.png.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\Common Files\System\Ole DB\ja-JP\sqloledb.rll.mui.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ja\System.Windows.Input.Manipulations.resources.dll.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\w2k_lsa_auth.dll.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\content-types.properties.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\deploy\ffjcext.zip.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-0018-0000-1000-0000000FF1CE.xml.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\WordR_Retail-ppd.xrm-ms.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\Common Files\microsoft shared\OFFICE16\Office Setup Controller\pkeyconfig-office.xrm-ms.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Linq.Queryable.dll.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\de\WindowsFormsIntegration.resources.dll.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\fonts\LucidaTypewriterBold.ttf.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019R_Grace-ppd.xrm-ms.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Standard2019R_Retail-ppd.xrm-ms.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-crt-runtime-l1-1-0.dll.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Dynamic.Runtime.dll.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\Java\jre-1.8\lib\ext\sunpkcs11.jar.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentDemoR_BypassTrial180-ul-oob.xrm-ms.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\clretwrc.dll.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.ComponentModel.Primitives.dll.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\de\PresentationUI.resources.dll.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\kn.pak.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-localization-l1-2-0.dll.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\java.dll.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-synch-l1-2-0.dll.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\da.pak.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\security\java.policy.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\GRAPH_COL.HXC.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\Microsoft Office\root\Office16\sdxs\FA000000018\cardview\lib\native-common\assets\[email protected]	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.ComponentModel.Annotations.dll.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\PowerPntLogo.contrast-black_scale-140.png.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\Microsoft Office\root\vfs\Fonts\private\ANTQUAB.TTF.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pl\UIAutomationClient.resources.dll.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_SubTrial1-ul-oob.xrm-ms.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdCO365R_SubTest-pl.xrm-ms.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ONBttnIE.dll.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\Common Files\microsoft shared\MSInfo\es-ES\msinfo32.exe.mui.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\el.pak.tmp	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.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	3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe

C:\Users\Admin\AppData\Local\Temp\3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe
"C:\Users\Admin\AppData\Local\Temp\3c92a27f625c61223eefba83fd1db2bc9c93bec4d27e08b3debf43f94999fff9.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:2536

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-1-5-21-786284298-625481688-3210388970-1000\desktop.ini.tmp

Filesize
46KB

MD5
f6d96ccb5c0ec10d0acca98019e53f50

SHA1
bead2523568074bf6b170aff7f0cd0e0361b55f3

SHA256
7bcb842508650786fcda16fda2a9e64b61b0576c85d990ceef3be6ede997d4fb

SHA512
749572767409a6fa0d7e6d57c9041c71236932e908e9f30f68d96eb45db2c72f7304e3310aa14e3eae013b0d419800daed221cff6a8ea8834e89fe3625ab6f55

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

Filesize
145KB

MD5
842e1efe8a9288af2656c813a31c289a

SHA1
3de485736c528ab201a11ae618350af19bd49fa1

SHA256
57834fcee7f72adac4b295a451d5a4cdfa20a1a2e020225aea0eb2743d61bc17

SHA512
7728d2d734a55ae4f94ea608982974e0997c631071f79dcb199ba1cd2fae9dd3d5e56eeda31764e19bb5d57d48288f91a4a0536286e1978b078e8bb3d9bd0cd6

Download Submit
memory/2536-0-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/2536-1011-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download