45c9960833c48c774435661361eebce55942643028220b0db93ecbec65f134ac

Analysis

max time kernel
120s
max time network
119s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
06-09-2024 16:15

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General

Target

753a188083397ea419829e74340d8370N.exe
Size

66KB
MD5

753a188083397ea419829e74340d8370
SHA1

ca7808311db753ce7e8e0a47415148d5c1d65b74
SHA256

45c9960833c48c774435661361eebce55942643028220b0db93ecbec65f134ac
SHA512

4941d84df530c6b993ab87e8e59e185b513a9cbb41e2cd27363189e7c51292d4eebd5eecf7cf6feaff908b8dcabd8ae814d0ce3d0af3109a643115de36af640c
SSDEEP

1536:CTWn1++PJHJXA/OsIZfzc3/Q8IZTkb/b9mdG3mdGT:KQSo7ZgrJ

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4587) 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/4664-0-0x0000000000400000-0x000000000040A000-memory.dmp	upx
behavioral2/files/0x000800000002362d-2.dat	upx
behavioral2/files/0x000600000001690a-6.dat	upx
behavioral2/memory/4664-859-0x0000000000400000-0x000000000040A000-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\System.ComponentModel.Primitives.dll.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\Internet Explorer\SIGNUP\install.ins.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Excel2019R_OEM_Perp-ul-oob.xrm-ms.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\StandardR_Retail-ul-phn.xrm-ms.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\cs\PresentationUI.resources.dll.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\jstatd.exe.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\security\blacklist.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusE5R_SubTrial-ppd.xrm-ms.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\api-ms-win-core-file-l1-2-0.dll.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-00E1-0000-1000-0000000FF1CE.xml.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PowerPointVL_MAK-ul-oob.xrm-ms.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Cartridges\sqlpdw.xsl.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ja-JP\rtscom.dll.mui.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Reflection.TypeExtensions.dll.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\Java\jre-1.8\bin\unpack.dll.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Fonts\Calibri-Cambria.xml.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Personal2019R_OEM_Perp-pl.xrm-ms.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\lt\msipc.dll.mui.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.IO.MemoryMappedFiles.dll.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\Java\jre-1.8\lib\accessibility.properties.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusinessVL_MAK-ppd.xrm-ms.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\GKWord.dll.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\it\WindowsFormsIntegration.resources.dll.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\PresentationFramework-SystemXmlLinq.dll.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\fr\ReachFramework.resources.dll.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-001F-040C-1000-0000000FF1CE.xml.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\Microsoft Office\root\Client\AppVDllSurrogate64.exe.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-console-l1-2-0.dll.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusR_Trial2-ppd.xrm-ms.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\ms.pak.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\javafx\libxml2.md.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ExcelR_OEM_Perp-ul-phn.xrm-ms.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hant\PresentationFramework.resources.dll.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_Subscription3-ul-oob.xrm-ms.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Cartridges\as90.xsl.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ja\System.Windows.Forms.resources.dll.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\fr\System.Windows.Forms.Primitives.resources.dll.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\Microsoft.WindowsDesktop.App.deps.json.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\jawt.dll.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusMSDNR_Retail-pl.xrm-ms.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\PenImc_cor3.dll.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OutlookR_OEM_Perp-ul-phn.xrm-ms.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ja\PresentationUI.resources.dll.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\ur.pak.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\Microsoft Office\root\Client\vccorlib140.dll.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Cartridges\msjet.xsl.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\Common Files\System\msadc\ja-JP\msdaremr.dll.mui.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\it-IT\ShapeCollector.exe.mui.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\Common Files\microsoft shared\VSTO\10.0\1033\VSTOLoaderUI.dll.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\PresentationFramework-SystemDrawing.dll.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\Java\jre-1.8\bin\java.exe.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Runtime.CompilerServices.VisualC.dll.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\da.pak.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-crt-heap-l1-1-0.dll.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PublisherR_OEM_Perp-ul-phn.xrm-ms.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Net.WebHeaderCollection.dll.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\DirectWriteForwarder.dll.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusE5R_Subscription-ul-oob.xrm-ms.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProR_Retail2-ul-oob.xrm-ms.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hant\System.Windows.Forms.Primitives.resources.dll.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\ssv.dll.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Outlook2019R_Grace-ppd.xrm-ms.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStd2019R_Retail-pl.xrm-ms.tmp	753a188083397ea419829e74340d8370N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.lt-lt.dll.tmp	753a188083397ea419829e74340d8370N.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	753a188083397ea419829e74340d8370N.exe

C:\Users\Admin\AppData\Local\Temp\753a188083397ea419829e74340d8370N.exe
"C:\Users\Admin\AppData\Local\Temp\753a188083397ea419829e74340d8370N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:4664

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4128,i,16316361669272684588,6171287487746154806,262144 --variations-seed-version --mojo-platform-channel-handle=1968 /prefetch:8
1⤵
PID:3716

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-1-5-21-2170637797-568393320-3232933035-1000\desktop.ini.tmp

Filesize
67KB

MD5
6cc83fb44a35dab0d13ed7c51a342779

SHA1
93ee35b111eb5857b5112eb649c3c98120284218

SHA256
0a1f8a007668f3d6d5160ea1b1b04ece8c11443be44737c7292e2ea8e19a1520

SHA512
2579a79cbfd05623f6e420e663b559f0a49d4059edf2b07ebb37dd0e945a51d0035eb79d3df9e2a2a8b804ac3392dafaa769895b38bd278b6072e3c5eac3daaa

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

Filesize
179KB

MD5
e524416b0a75599dd5678171e460b458

SHA1
b78b154a013c040026ab87e067d289e3e4d0ce52

SHA256
b2033aa532530834147b0d5456d773c26f232e748b8fcdd131822872b819856e

SHA512
b77657c08717fc759ea14aa7aba466c9c46d87c8522eecd3946dbca3ae2fcf3276790c4097713a2a546b0ae60c85a8101fe0bc4cd7401f44eae9ea8a4d26b01d

Download Submit
memory/4664-0-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/4664-859-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download