a3286bd588c5b7d898a259088fdb22196dcd55ef55e6371d9677ea362cc342a7

Analysis

max time kernel
120s
max time network
17s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
06-08-2024 08:45

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General

Target

8531ac2d1ce705bbc2ffda84200f4fa0N.exe
Size

54KB
MD5

8531ac2d1ce705bbc2ffda84200f4fa0
SHA1

62df8dfeea0171dfb14108435604513cc01e6587
SHA256

a3286bd588c5b7d898a259088fdb22196dcd55ef55e6371d9677ea362cc342a7
SHA512

c9b2e7f537d4598e497386728798ba6fa9156c6a27cd43db9891555d0077d0e9949ed336fbc4bb089c5ac01e6f715bd17c1b802b99d493c08b1e4cdc24a552ad
SSDEEP

1536:CTWn1++PJHJXA/OsIZfzc3/Q8+g9VyjVyKQpVQpe:KQSoP+3

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (3238) 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
behavioral1/memory/2112-0-0x0000000000400000-0x000000000040A000-memory.dmp	upx
behavioral1/files/0x00070000000120fb-2.dat	upx
behavioral1/files/0x0002000000010486-6.dat	upx
behavioral1/memory/2112-76-0x0000000000400000-0x000000000040A000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Java\jre7\lib\zi\Etc\GMT+4.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\Mozilla Firefox\osclientcerts.dll.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Africa\El_Aaiun.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Africa\Windhoek.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Asia\Gaza.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\Java\jre7\lib\zi\Asia\Damascus.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\bin\orbd.exe.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.5\de\System.Data.Services.Client.resources.dll.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\Common Files\System\msadc\en-US\msadcer.dll.mui.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\jre\bin\jawt.dll.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\SystemV\PST8.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Europe\Madrid.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.console.ui.notification_5.5.0.165303\META-INF\MANIFEST.MF.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.5\fr\System.Web.Entity.Design.Resources.dll.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.ui.forms.nl_zh_4.4.0.v20140623020002.jar.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\config\Modules\org-netbeans-modules-masterfs-nio2.xml.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\Microsoft Games\Multiplayer\Backgammon\bckgzm.exe.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\VideoLAN\VLC\lua\http\css\ui-lightness\images\ui-icons_ffffff_256x240.png.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\Microsoft Games\Hearts\es-ES\Hearts.exe.mui.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\DVD Maker\Shared\DvdStyles\BabyGirl\flower_trans_MATTE_PAL.wmv.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\DVD Maker\Shared\DvdStyles\Sports\SportsMainToScenesBackground.wmv.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\jre\lib\images\cursors\invalid32x32.gif.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\locale\org-netbeans-spi-quicksearch_zh_CN.jar.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\7-Zip\Lang\bg.txt.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\Common Files\Microsoft Shared\ink\es-ES\InkWatson.exe.mui.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\Common Files\System\msadc\handler.reg.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.5\de\System.Management.Instrumentation.Resources.dll.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Etc\GMT-4.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.e4.ui.workbench.swt.nl_zh_4.4.0.v20140623020002.jar.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.5\System.Web.Entity.dll.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\VideoLAN\VLC\plugins\codec\libaom_plugin.dll.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\Java\jre7\lib\zi\Asia\Pyongyang.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\include\win32\jni_md.h.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.ecf.filetransfer.httpclient4.feature_3.9.1.v20140827-1444\asl-v20.txt.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.help.ui.nl_zh_4.4.0.v20140623020002.jar.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\Java\jre7\lib\zi\America\Araguaina.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\Common Files\Microsoft Shared\ink\ru-RU\tipresx.dll.mui.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\Microsoft Games\FreeCell\FreeCellMCE.lnk.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\Mozilla Firefox\plugin-container.exe.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\Google\Chrome\Application\106.0.5249.119\Locales\zh-TW.pak.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\jre\lib\management\jmxremote.access.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.ui.themes_1.0.1.v20140819-1717\images\dragHandle.png.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\ext\locale\updater_zh_CN.jar.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\locale\org-netbeans-modules-print_ja.jar.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.5\System.Web.DynamicData.dll.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\7-Zip\Lang\he.txt.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\Google\Chrome\Application\106.0.5249.119\Extensions\external_extensions.json.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\InitializeInstall.aiff.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\locale\org-netbeans-core-multitabs_zh_CN.jar.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\config\Modules\org-netbeans-core-windows.xml.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\profiler\modules\locale\org-netbeans-modules-profiler-selector-ui_zh_CN.jar.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\Microsoft Games\Multiplayer\Backgammon\fr-FR\bckgzm.exe.mui.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Santiago.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Asia\Shanghai.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Europe\Monaco.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Pacific\Rarotonga.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.ui.workbench_3.106.1.v20140827-1737.jar.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\config\Modules\org-openide-windows.xml.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\VideoLAN\VLC\lua\playlist\soundcloud.luac.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\7-Zip\Lang\ka.txt.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\Common Files\System\msadc\ja-JP\msadcor.dll.mui.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\Java\jre7\bin\pack200.exe.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.0\UIAutomationProvider.dll.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.exe
File created	C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.5\es\System.Data.DataSetExtensions.Resources.dll.tmp	8531ac2d1ce705bbc2ffda84200f4fa0N.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	8531ac2d1ce705bbc2ffda84200f4fa0N.exe

C:\Users\Admin\AppData\Local\Temp\8531ac2d1ce705bbc2ffda84200f4fa0N.exe
"C:\Users\Admin\AppData\Local\Temp\8531ac2d1ce705bbc2ffda84200f4fa0N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:2112

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-1-5-21-2172136094-3310281978-782691160-1000\desktop.ini.tmp

Filesize
54KB

MD5
bdd327479f1e4332840a1132bf922ecd

SHA1
3fe9f23cf294b9c5c99dd9001c5de4c6c7799b94

SHA256
c4e2c9ad7fac84b61a136e32da158e2cda12f286dbe0c72a6c5b84ebba790692

SHA512
3d695d03f7394ef82dd8a6e6fdb3965a76e4508126f7585b441c3753f8d247bde162a3094a48f91e1e8ffdb26837e0e6507621bfa373a21004b575bef188efb7

Download Submit
C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\Office64WW.xml.tmp

Filesize
63KB

MD5
6a64ab6fc573c5dbb400e4a8c5e9c458

SHA1
b37a882c2632e28f9f35e1b5738a98c584ce9dc7

SHA256
c294df16a431d8cb080793bf3d36a80cda182187ddd1022d9220e6ff35203ae0

SHA512
5898dc5dee7f6e020e49c35562e99de4c12be417fd643c39782c6de9f6cfe4f2d57d74fc1131576b1b10ef412a2b6485b44a58c50bf593490d589153d3ffcfed

Download Submit
memory/2112-0-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/2112-76-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download