bf15ef7ca7a5501a525bc1c0157547128e2b4ae37cf9ed9799dc74955d90b3cd

Analysis

max time kernel
120s
max time network
112s
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, 13:09

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General

Target

e4a5cfe5bd8b2499270a682068454270N.exe
Size

73KB
MD5

e4a5cfe5bd8b2499270a682068454270
SHA1

da23e873a9438588595a50c2637cf305a1e22753
SHA256

bf15ef7ca7a5501a525bc1c0157547128e2b4ae37cf9ed9799dc74955d90b3cd
SHA512

846415044195375312254412cad91153540ccb0bfab2c118cf944416217b655a5db4538f4f389b83acfbe204f611321a433c3add85cf739d46db7b321d9a2ce4
SSDEEP

768:a7BlpyqaFAK65eCv+cIA0fm7Nm0CAbLg++PJHJzIWD4adZdhAIuZAIuniXKqAJxl:a7ZyqaFAlsr1++PJHJXFAIuZAIun

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4610) 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/5068-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000800000002339a-2.dat	upx
behavioral2/files/0x0014000000022936-6.dat	upx
behavioral2/memory/5068-862-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\microsoft shared\ink\IpsPlugin.dll.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Security.Principal.dll.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\README.txt.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_SubTrial2-ul-oob.xrm-ms.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Power Map Excel Add-in\VISUALIZATIONCHART.DLL.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\FirstRunLogo.scale-100.png.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\lcms.md.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_Subscription1-ul-oob.xrm-ms.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProMSDNR_Retail-ppd.xrm-ms.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Private.Xml.dll.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\Internet Explorer\iediagcmd.exe.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Excel2019VL_KMS_Client_AE-ul.xrm-ms.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\WordVL_MAK-pl.xrm-ms.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\Java\jre-1.8\bin\mlib_image.dll.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTest3-ppd.xrm-ms.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\Java\jdk-1.8\include\win32\bridge\AccessBridgeCallbacks.h.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\server\Xusage.txt.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\Java\jre-1.8\lib\accessibility.properties.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Professional2019R_OEM_Perp-ul-oob.xrm-ms.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\bci.dll.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_SubTrial2-ul-oob.xrm-ms.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\Common Files\System\es-ES\wab32res.dll.mui.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ja\UIAutomationClient.resources.dll.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\asm.md.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_BypassTrial180-ppd.xrm-ms.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LivePersonaCard\images\default\linkedin_logo_small.png.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ipsid.xml.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\fr\PresentationCore.resources.dll.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ko\ReachFramework.resources.dll.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\ar.pak.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-namedpipe-l1-1-0.dll.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\Microsoft Office\root\Client\api-ms-win-core-localization-l1-2-0.dll.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\Microsoft Office\root\Client\api-ms-win-crt-time-l1-1-0.dll.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\ClientSub2019_eula.txt.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\7-Zip\Lang\lv.txt.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\Common Files\System\ado\es-ES\msader15.dll.mui.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Security.Cryptography.Cng.dll.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\tr\PresentationCore.resources.dll.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\jsadebugd.exe.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\libpng.md.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_Trial-pl.xrm-ms.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\SETLANG_K_COL.HXK.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\fr\UIAutomationClientSideProviders.resources.dll.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-core-synch-l1-1-0.dll.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OutlookVL_KMS_Client-ul-oob.xrm-ms.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.ReportingServices.RsClient.dll.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ipshrv.xml.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Numerics.Vectors.dll.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hans\PresentationUI.resources.dll.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Windows.Forms.Design.dll.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\Common Files\System\ado\msado15.dll.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-crt-locale-l1-1-0.dll.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pt-BR\WindowsBase.resources.dll.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-util-l1-1-0.dll.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-crt-private-l1-1-0.dll.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\Java\jre-1.8\legal\jdk\dynalink.md.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Publisher2019VL_MAK_AE-ppd.xrm-ms.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\EXCEL_COL.HXC.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\cpprestsdk.dll.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\hijrah-config-umalqura.properties.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PublisherR_Retail-ul-phn.xrm-ms.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\PowerPntLogo.contrast-white_scale-80.png.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-crt-private-l1-1-0.dll.tmp	e4a5cfe5bd8b2499270a682068454270N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\cs\System.Windows.Forms.Design.resources.dll.tmp	e4a5cfe5bd8b2499270a682068454270N.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	e4a5cfe5bd8b2499270a682068454270N.exe

C:\Users\Admin\AppData\Local\Temp\e4a5cfe5bd8b2499270a682068454270N.exe
"C:\Users\Admin\AppData\Local\Temp\e4a5cfe5bd8b2499270a682068454270N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:5068

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-1-5-21-2412658365-3084825385-3340777666-1000\desktop.ini.tmp

Filesize
73KB

MD5
b05506d6f6137c09f86f1bb538cf2d4d

SHA1
27600569803390722a989066928c2fd5216c2cf8

SHA256
2effbd4b1cb195d9ba6af2f86c4230ca90489d5aa5535daf698ff88e7ff66ec8

SHA512
abb5ffed08d1386baffa297633ff93e7c1035a099c072e0e5aac52b9f7f3816874028368910867f72da821267e5a4e08b74ec1c9d23a26166171c68e6716d3b2

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

Filesize
172KB

MD5
5d08cc1c38c9a1a6805325e349475e25

SHA1
2c3139462c8caaea83eaac372382858cec4e38d6

SHA256
f5e7a51bf348229683718fc155274e6740579aca7f4b17ece9c3e1fbbf886746

SHA512
24ca8e245e8092b82e8385391a09a9dd54ee8e9f992d9d30b9d076f6c2dce4d8ff0a7fdd129a1f01653e86ce0c41dedc661b198f2dbbe9dcbb70f978d5826b3a

Download Submit
memory/5068-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5068-862-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download