23642750bb00b8c8f779bfe4e8ab9eb614687329df732c821d7d4503bdbc8913

Analysis

max time kernel
120s
max time network
17s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
03/09/2024, 17:46

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General

Target

b9c4546cd6b414187d8fd9c1f1805620N.exe
Size

55KB
MD5

b9c4546cd6b414187d8fd9c1f1805620
SHA1

baa0808bbb463cfc0cf224409e37103fe237599d
SHA256

23642750bb00b8c8f779bfe4e8ab9eb614687329df732c821d7d4503bdbc8913
SHA512

6f456e6a6c2a50beba456d8c50e9fbba327af15e23001473656020d8edb0769d2ac2656b0d22ac8361cf40490b6c40700a9a1cfc354abc157eca64af7b32b4a5
SSDEEP

768:kBT37CPKK1EXBwzEXBw3sgQw58eGkz2rcuesgQw58eGkz2rcu90TKe+0TKeinMdb:CTWUnMdyGdy4AnAP4Yrjwkh4wkhU

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (3106) 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/2908-0-0x0000000000400000-0x000000000040A000-memory.dmp	upx
behavioral1/files/0x0009000000012119-2.dat	upx
behavioral1/files/0x0002000000010620-6.dat	upx
behavioral1/memory/2908-69-0x0000000000400000-0x000000000040A000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Java\jdk1.7.0_80\include\win32\bridge\AccessBridgeCalls.h.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.ecf.filetransfer.ssl.feature_1.0.0.v20140827-1444\feature.properties.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\Java\jre7\lib\deploy\messages_ko.properties.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\DVD Maker\Shared\DvdStyles\LayeredTitles\NavigationLeft_ButtonGraphic.png.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\Java\jre7\lib\zi\Asia\Beirut.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\Common Files\Microsoft Shared\OfficeSoftwareProtectionPlatform\osppobjs-spp-plugin-manifest-signed.xrm-ms.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\Java\jre7\lib\zi\America\Mexico_City.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\Mozilla Firefox\browser\features\[email protected]	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.5\System.Data.Services.Design.dll.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\7-Zip\Lang\uz-cyrl.txt.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\Google\Chrome\Application\106.0.5249.119\Locales\ms.pak.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\Internet Explorer\ieproxy.dll.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Asia\Baku.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.console.ui.notification_5.5.0.165303\icons\new-trigger-wiz.gif.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\locale\org-openide-dialogs_ja.jar.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\locale\org-openide-util-enumerations_zh_CN.jar.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\Java\jre7\lib\zi\Asia\Kathmandu.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\Microsoft Games\Chess\ChessMCE.png.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\Mozilla Firefox\postSigningData.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\VideoLAN\VLC\plugins\access\libaccess_imem_plugin.dll.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.5\es\System.Data.Services.Design.resources.dll.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\Common Files\Microsoft Shared\ink\en-US\boxed-join.avi.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\Common Files\Microsoft Shared\ink\en-US\micaut.dll.mui.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\Common Files\Microsoft Shared\ink\ja-JP\InputPersonalization.exe.mui.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\DVD Maker\Shared\DvdStyles\Performance\userContent_16x9_imagemask.png.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\Java\jre7\lib\zi\EST.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\Microsoft Office\Office14\INLAUNCH.DLL.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\Mozilla Firefox\api-ms-win-crt-time-l1-1-0.dll.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\Common Files\Microsoft Shared\ink\fr-FR\micaut.dll.mui.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\DVD Maker\Shared\DvdStyles\Performance\Perf_Scenes_Mask1.png.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\locale\org-openide-compat_zh_CN.jar.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\VideoLAN\VLC\locale\sm\LC_MESSAGES\vlc.mo.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\DVD Maker\Shared\DvdStyles\Push\push.png.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\Java\jre7\lib\zi\Asia\Riyadh87.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\Java\jre7\lib\zi\CET.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\VideoLAN\VLC\lua\modules\common.luac.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\include\jvmticmlr.h.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\jre\bin\javaw.exe.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\VideoLAN\VLC\lua\http\dialogs\create_stream.html.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\Microsoft Games\Chess\ChessMCE.lnk.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\Common Files\System\msadc\es-ES\msdaprsr.dll.mui.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\Internet Explorer\jsdebuggeride.dll.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Etc\GMT-14.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.p2.ui.overridden_5.5.0.165303.jar.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.rcp.intro.ja_5.5.0.165303.jar.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\locale\org-netbeans-api-progress_ja.jar.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\visualvm\modules\locale\com-sun-tools-visualvm-threaddump_ja.jar.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.0\de\UIAutomationProvider.resources.dll.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\jre\lib\security\local_policy.jar.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Etc\GMT-4.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\VideoLAN\VLC\locale\fa\LC_MESSAGES\vlc.mo.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\main\zh-dayi.xml.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.e4.rcp_1.3.100.v20141007-2033\META-INF\MANIFEST.MF.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\Java\jre7\bin\tnameserv.exe.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\Google\Chrome\Application\106.0.5249.119\Locales\es.pak.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Resolute.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.console.ui.notification_5.5.0.165303\html\dcommon\gifs\help.gif.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\Common Files\Microsoft Shared\ink\sk-SK\tipresx.dll.mui.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\bin\javafxpackager.exe.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Asia\Novokuznetsk.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\CST6CDT.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\Microsoft Games\Minesweeper\MineSweeper.dll.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\Common Files\Microsoft Shared\ink\it-IT\IpsMigrationPlugin.dll.mui.tmp	b9c4546cd6b414187d8fd9c1f1805620N.exe
File created	C:\Program Files\Google\Chrome\Application\106.0.5249.119\Locales\sw.pak.tmp	b9c4546cd6b414187d8fd9c1f1805620N.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	b9c4546cd6b414187d8fd9c1f1805620N.exe

C:\Users\Admin\AppData\Local\Temp\b9c4546cd6b414187d8fd9c1f1805620N.exe
"C:\Users\Admin\AppData\Local\Temp\b9c4546cd6b414187d8fd9c1f1805620N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:2908

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-1-5-21-1506706701-1246725540-2219210854-1000\desktop.ini.tmp

Filesize
55KB

MD5
ad6783c9208fe8f864ae6bdad6d35c89

SHA1
6254ff75160e4355d7dfae429741d2060de6d0df

SHA256
639ae6978ab5efcb10125877bf5e8d75a3881ce18ceceeb12782ba6130810eff

SHA512
f091b278cd221ff51aec430fa0d1e74f877fa0834a28a3ea0455a6f2904627b7b5225a6758dc95ffb43b3808d07cd6599793fd8f3548cb75ce0c0879fdf3ce09

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

Filesize
64KB

MD5
b66e21f292648519f40ad3478e70cac6

SHA1
a6679e04171ad9a68db2111bb26f36b0ece48273

SHA256
e72b5a8fdacd7836a6dd311fb249cc5e9f277f96e0369be95ba490ea54a134cc

SHA512
b6c1a2e19eba9a64ba9389b4f7562466b34272faaa29aebb4ededd899cefc8f3611a18af1fb9c80ec7cff95c12eb1ad0af1845485eff8b5479edca4e7f7b5fe8

Download Submit
memory/2908-0-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/2908-69-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download