001e592e1a99ffdf1b5f778c4819302c64c549d6ad31c4fdb4f5b8ea9c16a2c0

Analysis

max time kernel
119s
max time network
120s
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, 09:20

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General

Target

4b2b256a81b429c0764ab7302aa19170N.exe
Size

54KB
MD5

4b2b256a81b429c0764ab7302aa19170
SHA1

f2740b90f23580e584036bebbb733ae03da7ae08
SHA256

001e592e1a99ffdf1b5f778c4819302c64c549d6ad31c4fdb4f5b8ea9c16a2c0
SHA512

3785054ea8527d770372f66e732f336ae088ece3f1b3b1b64aba728541d066fa352d6f3a6018e89976d3605d982e2ea7c48e525558b1cbfd7d2351e0fc6799e3
SSDEEP

768:V7Blpf/FAK65euBT37CPKKQSjyJJ1EXBwzEXBwdcMcI9DJKGJK9/YzT7zTs:V7Zf/FAxTWoJJ7ThJKGJK3

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4617) 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/4400-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x00090000000236cb-2.dat	upx
behavioral2/files/0x000600000001690a-6.dat	upx
behavioral2/memory/4400-858-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Microsoft Office\root\Office16\1033\BHOINTL.DLL.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Power Map Excel Add-in\EXCELPLUGINDATAPROVIDER.DLL.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-crt-multibyte-l1-1-0.dll.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTest1-ppd.xrm-ms.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_SubTrial1-pl.xrm-ms.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\BCSRuntimeRes.dll.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\Java\jre-1.8\legal\jdk\cldr.md.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\Microsoft Office\root\Client\AppVLP.exe.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Word2019R_Retail-pl.xrm-ms.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\7-Zip\Lang\en.ttt.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\TipRes.dll.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\mscordaccore.dll.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Runtime.InteropServices.dll.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\Document Parts\1033\16\Built-In Building Blocks.dotx.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\en-us\msipc.dll.mui.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\7-Zip\Lang\ka.txt.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\7-Zip\Lang\sr-spl.txt.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\cs\WindowsBase.resources.dll.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusR_Grace-ul-oob.xrm-ms.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\Common Files\System\Ole DB\en-US\oledb32r.dll.mui.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudent2019R_OEM_Perp-ppd.xrm-ms.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremDemoR_BypassTrial365-ppd.xrm-ms.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_Grace-ul-oob.xrm-ms.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\Common Files\System\Ole DB\de-DE\sqloledb.rll.mui.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ru\System.Xaml.resources.dll.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\tr\System.Windows.Forms.resources.dll.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_Retail3-ul-phn.xrm-ms.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\en-US\InputPersonalization.exe.mui.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\it\Microsoft.VisualBasic.Forms.resources.dll.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\ExcelLogo.contrast-black_scale-180.png.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\ONINTL.DLL.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\AppVOrchestration.dll.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\es\UIAutomationProvider.resources.dll.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ko\System.Windows.Input.Manipulations.resources.dll.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019XC2RVL_MAKC2R-pl.xrm-ms.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ipsnld.xml.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019R_PrepidBypass-ppd.xrm-ms.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\Bibliography\BIBFORM.XML.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\fr\System.Xaml.resources.dll.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\mojo_core.dll.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\Java\jre-1.8\lib\sound.properties.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Data.SapClient.dll.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Diagnostics.Tools.dll.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\Java\jre-1.8\lib\jfr\profile.jfc.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProVL_MAK-ppd.xrm-ms.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ExcelFloatieXLEditTextModel.bin.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\jsoundds.dll.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\OneNoteLogoSmall.contrast-black_scale-180.png.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-crt-locale-l1-1-0.dll.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-crt-process-l1-1-0.dll.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ko\Microsoft.VisualBasic.Forms.resources.dll.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\it\PresentationCore.resources.dll.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStd2019VL_MAK_AE-ul-phn.xrm-ms.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\7-Zip\Lang\yo.txt.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\jdk\santuario.md.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\AccessR_OEM_Perp-ppd.xrm-ms.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_OEM_Perp4-ppd.xrm-ms.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Professional2019R_PrepidBypass-ul-oob.xrm-ms.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\Common Files\microsoft shared\MSInfo\it-IT\msinfo32.exe.mui.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.ComponentModel.TypeConverter.dll.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\es\System.Windows.Input.Manipulations.resources.dll.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\meta-index.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\jjs.exe.tmp	4b2b256a81b429c0764ab7302aa19170N.exe
File created	C:\Program Files\Microsoft Office\root\Client\mfc140u.dll.tmp	4b2b256a81b429c0764ab7302aa19170N.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	4b2b256a81b429c0764ab7302aa19170N.exe

C:\Users\Admin\AppData\Local\Temp\4b2b256a81b429c0764ab7302aa19170N.exe
"C:\Users\Admin\AppData\Local\Temp\4b2b256a81b429c0764ab7302aa19170N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:4400

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=4076,i,12198811467968044966,17227406646827438786,262144 --variations-seed-version --mojo-platform-channel-handle=3940 /prefetch:8
1⤵
PID:2172

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
54KB

MD5
9b9787f434e8e14790d7c0a37344be50

SHA1
84d3bfaa1cdf9bf364608b91d49f0c862a6e853f

SHA256
666bf6012ebed2eefb49643f8fdb2ab518c48dba925c617153dacbd805dd5655

SHA512
a7b23e900c63f8498bea023ebce6a4bda10c961016cbd836cb590f41ca52a24125082790da08afb9332fb85eae3c14ce664792e276a5c1e8b2f4ad9676261316

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

Filesize
166KB

MD5
d86ad7042b987e176e6e63dba2ac1793

SHA1
5d7cc51069943b58a45feda6561bdd72b67817c4

SHA256
7f85019d84e65152f8e8a626612d91f1230171ef64f732fa23138a2350652cc1

SHA512
70543171e7beafadeac30b76eb6966b56bacf403dc1369e90d9d68edef1affd6fac9917694bc4aa4a84117808e24007b672db894b22d87f96dd3200020fa57dc

Download Submit
memory/4400-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4400-858-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download