26912bf6629ee4af0c6930c821096981b279246dd773c72a0eb92d79f7f0601f

Analysis

max time kernel
120s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
15/09/2024, 08:18

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General

Target

c91658f0a08f73a863b30e9a93ef0000N.exe
Size

61KB
MD5

c91658f0a08f73a863b30e9a93ef0000
SHA1

c0c7290fdd12efb557e7964d7ec3a517b67ac165
SHA256

26912bf6629ee4af0c6930c821096981b279246dd773c72a0eb92d79f7f0601f
SHA512

befdee09378151fff04b6149f966a39ffa98da80d54806ab1c6d85a3aec06687e55ae7c21b2cb522cb73c45ed0ec374b7b5c3da807df5ea5d2b159236e8f24fe
SSDEEP

768:V7Blpf/FAK65euBT37CPKKQSjyJJ1EXBwzEXBwdcMcwBcCBcw/tio/tiz9CQCh:V7Zf/FAxTWoJJ7TTQoQz9CQCh

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/2756-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x000a000000012250-2.dat	upx
behavioral1/files/0x0002000000010621-6.dat	upx
behavioral1/memory/2756-74-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\DVD Maker\Shared\DvdStyles\Shatter\NavigationRight_SelectionSubpicture.png.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\VideoLAN\VLC\plugins\access_output\libaccess_output_http_plugin.dll.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\7-Zip\Lang\ext.txt.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Asia\Kuala_Lumpur.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.flightrecorder.controlpanel.ui.ja_5.5.0.165303.jar.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\Microsoft Games\Mahjong\Mahjong.exe.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\visualvm\modules\locale\com-sun-tools-visualvm-host-remote_zh_CN.jar.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\Java\jre7\lib\zi\Etc\GMT-3.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Australia\Currie.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\visualvm\update_tracking\com-sun-tools-visualvm-heapdump.xml.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\Common Files\System\ado\msadomd.dll.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\DVD Maker\Shared\DvdStyles\Circle_SelectionSubpictureB.png.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\UnregisterConfirm.lnk.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\VideoLAN\VLC\lua\playlist\soundcloud.luac.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\Common Files\Microsoft Shared\MSInfo\ja-JP\msinfo32.exe.mui.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\javax.el_2.2.0.v201303151357.jar.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\DVD Maker\Shared\DvdStyles\HueCycle\1047x576black.png.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.rjmx_5.5.0.165303\lib\pop3.jar.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\update_tracking\org-netbeans-modules-masterfs.xml.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\Java\jre7\lib\zi\America\North_Dakota\New_Salem.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\VideoLAN\VLC\plugins\audio_filter\libsimple_channel_mixer_plugin.dll.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\include\jvmti.h.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.ecf.core.ssl.feature_1.0.0.v20140827-1444\META-INF\ECLIPSE_.RSA.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\bin\jstack.exe.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\locale\org-netbeans-modules-core-kit_zh_CN.jar.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\Common Files\Microsoft Shared\ink\InkDiv.dll.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\Internet Explorer\pdmproxy100.dll.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Europe\Amsterdam.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\jre\LICENSE.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\visualvm\modules\locale\org-netbeans-core-windows_visualvm.jar.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\VideoLAN\VLC\locale\uz\LC_MESSAGES\vlc.mo.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\VideoLAN\VLC\plugins\codec\libcdg_plugin.dll.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\Common Files\Microsoft Shared\ink\ru-RU\tipresx.dll.mui.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\Common Files\System\ado\msadox.dll.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\DVD Maker\Shared\DvdStyles\SpecialOccasion\NavigationUp_SelectionSubpicture.png.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.w3c.dom.events_3.0.0.draft20060413_v201105210656.jar.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\Java\jre7\lib\security\cacerts.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\Java\jre7\lib\zi\America\Belem.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.0\fr\PresentationBuildTasks.resources.dll.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\VideoLAN\VLC\lua\meta\art\03_lastfm.luac.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\Common Files\Microsoft Shared\ink\en-US\InkWatson.exe.mui.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\Common Files\System\ado\msadrh15.dll.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\Java\jre7\lib\zi\Europe\Paris.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\Google\Chrome\Application\106.0.5249.119\Locales\fr.pak.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\javax.xml_1.3.4.v201005080400.jar.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.e4.ui.css.swt_0.11.101.v20140818-1343.jar.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\Mozilla Firefox\browser\features\[email protected]	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\Common Files\System\msadc\it-IT\msadcor.dll.mui.tmp	c91658f0a08f73a863b30e9a93ef0000N.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\feature.properties.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\VideoLAN\VLC\plugins\codec\libflac_plugin.dll.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\db\3RDPARTY.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.5\it\System.Web.Entity.Resources.dll.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\Java\jre7\lib\fontconfig.properties.src.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.apache.lucene.core_3.5.0.v20120725-1805.jar.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\update_tracking\org-netbeans-core-windows.xml.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\org-netbeans-core.jar.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\profiler\modules\locale\org-netbeans-lib-profiler-ui_zh_CN.jar.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\profiler\modules\org-netbeans-modules-profiler-api.jar.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\Java\jre7\lib\zi\Pacific\Honolulu.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.0\PresentationFramework.Aero.dll.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\Common Files\Microsoft Shared\Stationery\Pretty_Peacock.jpg.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Europe\Uzhgorod.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\Mozilla Firefox\mozglue.dll.tmp	c91658f0a08f73a863b30e9a93ef0000N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\bin\jmc.ini.tmp	c91658f0a08f73a863b30e9a93ef0000N.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	c91658f0a08f73a863b30e9a93ef0000N.exe

C:\Users\Admin\AppData\Local\Temp\c91658f0a08f73a863b30e9a93ef0000N.exe
"C:\Users\Admin\AppData\Local\Temp\c91658f0a08f73a863b30e9a93ef0000N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:2756

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-1-5-21-312935884-697965778-3955649944-1000\desktop.ini.tmp

Filesize
61KB

MD5
f207dd355daddbc39be11332340248f8

SHA1
01cc1f40fe307b2b7de801e311a9e494e580c056

SHA256
e1ee7473f879be0920febeb697d2100f5f305c2680ded796442d3a427c5f2d7f

SHA512
3ec03becaeb94f3553492918232198dcbb1e47a253bc22ada8470646bf504f535fc72ba4f708bfb6303cf6da53e49b51968fcd51ecfc75c49174408ad93b924c

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

Filesize
70KB

MD5
1c2f61dbd23e6772cf00339e906443e8

SHA1
02189194ceef2ab370ecd84a5eeb8384d76d12a6

SHA256
6748be313617d66e003d45ef120d9aeb46e0a7e0c899b36f1041823129c40341

SHA512
61b3653a923b7925f42eb216a3a6378309c30d86f53653213560fc9a354cf5158c150f51bb7852af85126eb1cc4b48bfdd24a6dcaec4ce59154d76b4a7eab613

Download Submit
memory/2756-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2756-74-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download