2a3ab7117871abae2dfcf1624723244d9693a2236ad090ca176019f6f29b05b0

Analysis

max time kernel
119s
max time network
114s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
23/08/2024, 14:07

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General

Target

d27272278bdb4266ca11ecb700399190N.exe
Size

55KB
MD5

d27272278bdb4266ca11ecb700399190
SHA1

a4dc6f5a9a87eb4697b3b4adac49f717e6939fe1
SHA256

2a3ab7117871abae2dfcf1624723244d9693a2236ad090ca176019f6f29b05b0
SHA512

22b419db89eba27401b062d3c694df2aa2f11e9d587ccb59493646d9a6b2f3430f7dd83418a9f3a70427878bcc3a23d9f486e0efbd83142c415015d63709579f
SSDEEP

768:V7Blpf/FAK65euBT37CPKKQSjyJJ1EXBwzEXBwdcMcI9dlmr9umr9K:V7Zf/FAxTWoJJ7Tkr99r9K

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4661) 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/4080-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023464-2.dat	upx
behavioral2/files/0x000f000000022902-6.dat	upx
behavioral2/memory/4080-868-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\hostpolicy.dll.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\PresentationFramework.Luna.dll.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\tr\ReachFramework.resources.dll.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\tzmappings.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365BusinessR_SubTest-ul-oob.xrm-ms.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\MSIPCEvents.man.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\7-Zip\Lang\co.txt.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\it-IT\TipRes.dll.mui.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\Common Files\System\msadc\de-DE\msaddsr.dll.mui.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Client.Models.dll.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Drawing.dll.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusDemoR_BypassTrial180-ul-oob.xrm-ms.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PublisherR_Trial-pl.xrm-ms.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\api-ms-win-crt-filesystem-l1-1-0.dll.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Security.Cryptography.OpenSsl.dll.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_Subscription5-pl.xrm-ms.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\offsymt.ttf.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\PresentationFramework-SystemCore.dll.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\sound.properties.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hant\System.Xaml.resources.dll.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-crt-locale-l1-1-0.dll.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\Java\jre-1.8\bin\sunec.dll.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_OEM_Perp6-ul-phn.xrm-ms.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\FilterModule.dll.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\7-Zip\Lang\io.txt.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fr-FR\TipRes.dll.mui.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\PresentationCore.dll.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\tr\ReachFramework.resources.dll.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\cs\UIAutomationClientSideProviders.resources.dll.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\sr-Cyrl-BA\msipc.dll.mui.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\plugin2\vcruntime140.dll.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\Java\jre-1.8\legal\javafx\gstreamer.md.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Standard2019R_Trial-pl.xrm-ms.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\TellMeExcel.nrr.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ipshrv.xml.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\System.Windows.Forms.Design.Editors.dll.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\Internet Explorer\SIGNUP\install.ins.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdR_Grace-ppd.xrm-ms.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\zh-CN\tipresx.dll.mui.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-core-file-l2-1-0.dll.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_OEM_Perp-ul-oob.xrm-ms.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\POWERPNT_K_COL.HXK.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\sr-Latn-RS\msipc.dll.mui.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\Java\jdk-1.8\lib\jawt.lib.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019XC2RVL_MAKC2R-ul-oob.xrm-ms.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_OEM_Perp6-pl.xrm-ms.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.ComponentModel.EventBasedAsync.dll.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pt-BR\UIAutomationClientSideProviders.resources.dll.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\PenImc_cor3.dll.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\javafx\libxslt.md.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.ro-ro.dll.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\Alphabet.xml.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\it-IT\TipTsf.dll.mui.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Runtime.Handles.dll.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pl\PresentationFramework.resources.dll.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\lt.pak.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Net.HttpListener.dll.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\FirstRunLogoSmall.contrast-black_scale-100.png.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_Subscription2-ppd.xrm-ms.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusR_OEM_Perp4-pl.xrm-ms.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStd2019R_Retail-pl.xrm-ms.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdCO365R_SubTest-pl.xrm-ms.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\PowerPntLogo.scale-140.png.tmp	d27272278bdb4266ca11ecb700399190N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\Microsoft.DiaSymReader.Native.amd64.dll.tmp	d27272278bdb4266ca11ecb700399190N.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	d27272278bdb4266ca11ecb700399190N.exe

C:\Users\Admin\AppData\Local\Temp\d27272278bdb4266ca11ecb700399190N.exe
"C:\Users\Admin\AppData\Local\Temp\d27272278bdb4266ca11ecb700399190N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:4080

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-1-5-21-945322488-2060912225-3527527000-1000\desktop.ini.tmp

Filesize
55KB

MD5
97fc3459a02cbaaa1915280b3c9f02b6

SHA1
9b05435a7edc52cb172bf0a1964dd86a4c9bab7a

SHA256
160a1a11ce0f5a7c3c91abded47a7cd7a0d762cdb40088552ede78772312d89c

SHA512
ba018998b22720b04a02424048a4390ea14f0b38b867cfb87aa5165b4118b0d978cee1af1a2c746e38e730ad951fbdced7155e4af6f0bfa33a3135c3f2ed3716

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

Filesize
154KB

MD5
2bd178ab79c15888856c7f165d303099

SHA1
572f5a17088fe9605f64c66cf47b2119d217263d

SHA256
d3477af3ce5c98d38d666d55bc913035470b61bc70613cdacab4693b902e9ce7

SHA512
7fd19a9eeb132771ead10e2406909a6ac57e4d022f51139718dc04295be15812a955df4d53c3a3d978e1f29610e28cd8efc4340cf905ecda5b913191e72e8f04

Download Submit
memory/4080-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4080-868-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download