d06a368a115c4d7cf0fc50a4d1e01eccc29040ac471aa9a79ee8c91c862f6a09

Analysis

max time kernel
120s
max time network
108s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
26-07-2024 17:29

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General

Target

37437f0f793ecb09ab51a7ac94e81dd0N.exe
Size

42KB
MD5

37437f0f793ecb09ab51a7ac94e81dd0
SHA1

29105f2cc798cec6a528d58687045ba29253654a
SHA256

d06a368a115c4d7cf0fc50a4d1e01eccc29040ac471aa9a79ee8c91c862f6a09
SHA512

8b0489af4f6e7e7c0b77b5122c2dd43acbef6f1fd139346f39f6ec8d18a672fbaaa20d5491d652205919dd38d5ec90a05ac9c4f11e237bdcc2583020cafa2a32
SSDEEP

768:V7Blpf/FAK65euBT37CPKKQSjyJJXGiXZBGrG6:V7Zf/FAxTWoJJXS

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4036) 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/1692-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x00090000000226f6-2.dat	upx
behavioral2/files/0x0014000000022923-6.dat	upx
behavioral2/memory/1692-1738-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\CompleteStep.mp3.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\en-US\TipRes.dll.mui.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\hwrlatinlm.dat.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\tipskins.dll.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hant\System.Windows.Controls.Ribbon.resources.dll.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\fr\UIAutomationProvider.resources.dll.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremDemoR_BypassTrial365-ppd.xrm-ms.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019R_Retail-ppd.xrm-ms.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.hi-in.dll.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\es-ES\tipresx.dll.mui.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\fr\Microsoft.VisualBasic.Forms.resources.dll.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\fr\PresentationUI.resources.dll.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdXC2RVL_KMS_ClientC2R-ppd.xrm-ms.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\7-Zip\Lang\fy.txt.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-crt-process-l1-1-0.dll.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\Java\jre-1.8\lib\deploy\messages_it.properties.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\AccessR_Retail-ul-oob.xrm-ms.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Text.Encodings.Web.dll.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\de\System.Windows.Forms.Primitives.resources.dll.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hant\System.Windows.Controls.Ribbon.resources.dll.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\Java\jre-1.8\legal\jdk\bcel.md.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\AccessVL_MAK-ul-phn.xrm-ms.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\7-Zip\Lang\sl.txt.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pt-BR\PresentationCore.resources.dll.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\kinit.exe.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ExcelVL_KMS_Client-ppd.xrm-ms.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStd2019R_OEM_Perp-pl.xrm-ms.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\WordR_Trial-ppd.xrm-ms.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\7-Zip\Lang\yo.txt.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-processenvironment-l1-1-0.dll.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Formats.Tar.dll.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pl\UIAutomationClientSideProviders.resources.dll.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Drawing.Common.dll.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\PresentationFramework.AeroLite.dll.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\Java\jre-1.8\lib\management\snmp.acl.template.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProR_Grace-ul-oob.xrm-ms.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\Common Files\System\uk-UA\wab32res.dll.mui.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Standard2019MSDNR_Retail-ul-oob.xrm-ms.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProR_Trial-ppd.xrm-ms.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\Common Files\System\msadc\es-ES\msdaremr.dll.mui.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\logging.properties.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\security\public_suffix_list.dat.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\dt_socket.dll.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_Grace-ul-oob.xrm-ms.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProDemoR_BypassTrial180-ul-oob.xrm-ms.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdR_Retail-pl.xrm-ms.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\oskclearui\oskclearuibase.xml.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\CERTINTL.DLL.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pt-BR\ReachFramework.resources.dll.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\es\UIAutomationClientSideProviders.resources.dll.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\PresentationFramework-SystemDrawing.dll.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\Google\Chrome\Application\initial_preferences.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\bcel.md.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\coreclr.dll.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ru\PresentationCore.resources.dll.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\fr\PresentationUI.resources.dll.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ru\WindowsFormsIntegration.resources.dll.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.106\VisualElements\LogoCanary.png.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\Internet Explorer\ielowutil.exe.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Security.Cryptography.Cng.dll.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\jdk\giflib.md.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\Microsoft Office\root\Client\vcruntime140.dll.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Professional2019R_Grace-ppd.xrm-ms.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\jsse.jar.tmp	37437f0f793ecb09ab51a7ac94e81dd0N.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	37437f0f793ecb09ab51a7ac94e81dd0N.exe

C:\Users\Admin\AppData\Local\Temp\37437f0f793ecb09ab51a7ac94e81dd0N.exe
"C:\Users\Admin\AppData\Local\Temp\37437f0f793ecb09ab51a7ac94e81dd0N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:1692

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-1-5-21-701583114-2636601053-947405450-1000\desktop.ini.tmp

Filesize
42KB

MD5
98ac59a8baa053ba3d50472f82ca7c3d

SHA1
171e6cddbbdfa63be30e025ea0432987ebcbf2a1

SHA256
703bdf9409e425c8d917667403df7da2c6d96d17a4b39e4592b344a618550153

SHA512
5f8c78223e1ffa73d11a7692dfe695e134999238817f2349cf300decad1934684bacfec24f3c3e1351823cef761ede4d956a39566ecc63fc682a976dd0c61544

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

Filesize
141KB

MD5
d22b48c86b15db756f0e71ba9004ea3d

SHA1
e14c33ab88c867de6c57afb9f065afa373ff47a8

SHA256
a63860b209aa86681ba0247d81884ba517abce23156a38d2b9cb245c81a7176a

SHA512
58eae3f4de33a5631c6e4e101f6634cf3a361449abcef18c8c2ba9ba9656d3c7695e9527b345ad5ca704786c5c2f6153e7001c762ea5814daa7e3366ad8be7d5

Download Submit
memory/1692-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1692-1738-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download