99bc46aa88d4ca8aa6e09cfac1117660d48c002e970957b81bf4a9a6aa068121

Analysis

max time kernel
120s
max time network
118s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
02/09/2024, 05:32

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General

Target

a37cbe8e0f11353501983b6c57216f50N.exe
Size

131KB
MD5

a37cbe8e0f11353501983b6c57216f50
SHA1

192a91b2cdb2b4e731d4bbf7e765406a5624ed13
SHA256

99bc46aa88d4ca8aa6e09cfac1117660d48c002e970957b81bf4a9a6aa068121
SHA512

5ad7c79dc8d972dec9ee56808ea1e1be5ea3669a4ee98699cc2c50106c0a0c65cb68cfd6fbac398b27b6019927f07d1a27463ceea80bd2e73dad445b269a8407
SSDEEP

1536:V7Zf/FAxTWoJJZENTNyavf73tQqarjrATW7JJZENTNyavf73tQqarjry:fny1tEvfjqqmtEvfjqqH

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (2883) 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/1512-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x00080000000120f1-2.dat	upx
behavioral1/files/0x0002000000010557-6.dat	upx
behavioral1/memory/1512-70-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Asia\Hebron.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.core.net_1.2.200.v20140124-2013.jar.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\org-openide-nodes.jar.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\oskmenu.xml.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\DVD Maker\SecretST.TTF.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\Common Files\Microsoft Shared\OFFICE14\MSOXMLMF.DLL.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Goose_Bay.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.core.databinding.property.nl_zh_4.4.0.v20140623020002.jar.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\Java\jre7\lib\zi\Pacific\Kiritimati.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\Microsoft Office\Office14\1033\BHOINTL.DLL.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\7-Zip\Lang\mng2.txt.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\Common Files\Microsoft Shared\ink\InputPersonalization.exe.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\DVD Maker\Shared\DvdStyles\Push\NavigationUp_SelectionSubpicture.png.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\Java\jre7\lib\zi\Africa\Johannesburg.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\Java\jre7\lib\zi\America\Indiana\Knox.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\Common Files\Microsoft Shared\ink\de-DE\tipresx.dll.mui.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\DVD Maker\Shared\DvdStyles\Performance\Notes_loop.wmv.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.jetty.util_8.1.14.v20131031.jar.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\Java\jre7\lib\zi\PST8PDT.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\visualvm\modules\com-sun-tools-visualvm-sa.jar.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\Java\jre7\lib\zi\Asia\Vladivostok.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\Mozilla Firefox\defaults\pref\autoconfig.js.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\web\webbase.xml.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\DVD Maker\Shared\DvdStyles\Performance\Title_Page.wmv.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Fortaleza.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Asia\Kamchatka.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.emf.common_2.10.1.v20140901-1043\feature.xml.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\Java\jre7\lib\zi\America\Mazatlan.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\7-Zip\Lang\sl.txt.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\DebugCheckpoint.mpp.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\Java\jre7\lib\zi\CST6CDT.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\desktop.ini.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Atlantic\Canary.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\visualvm\modules\locale\com-sun-tools-visualvm-host-views_ja.jar.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\Microsoft Office\Office14\1033\Mso Example Intl Setup File B.txt.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\Google\Chrome\Application\106.0.5249.119\Locales\fi.pak.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Indiana\Winamac.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\config\ModuleAutoDeps\org-openide-execution.xml.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\config\Modules\org-netbeans-modules-applemenu.xml.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\org-netbeans-modules-options-api.jar.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\Java\jre7\lib\zi\America\Bahia.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\Mozilla Firefox\browser\VisualElements\PrivateBrowsing_150.png.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\DVD Maker\Shared\DvdStyles\NavigationLeft_SelectionSubpicture.png.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\Google\Chrome\Application\chrome.VisualElementsManifest.xml.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.0\de\System.IdentityModel.Resources.dll.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\Common Files\System\msadc\en-US\msaddsr.dll.mui.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\DVD Maker\Shared\DvdStyles\Rectangles\15x15dot.png.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\Java\jre7\lib\zi\Pacific\Gambier.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.0\es\System.IdentityModel.Resources.dll.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\7-Zip\Lang\ku-ckb.txt.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\DVD Maker\Shared\DvdStyles\Sports\SportsNotesBackground_PAL.wmv.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.e4.ui.widgets.nl_ja_4.4.0.v20140623020002.jar.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.ui.themes_1.0.1.v20140819-1717\META-INF\ECLIPSE_.SF.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\db\bin\NetworkServerControl.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\jre\bin\servertool.exe.tmp	a37cbe8e0f11353501983b6c57216f50N.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	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\update_tracking\org-netbeans-modules-sendopts.xml.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\profiler\config\Modules\org-netbeans-modules-profiler-utilities.xml.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\Common Files\System\Ole DB\es-ES\sqloledb.rll.mui.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\Common Files\System\wab32res.dll.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.console.ui.notification_5.5.0.165303\plugin.xml.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\visualvm\config\Modules\com-sun-tools-visualvm-profiler.xml.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\Java\jre7\bin\jaas_nt.dll.tmp	a37cbe8e0f11353501983b6c57216f50N.exe
File created	C:\Program Files\Mozilla Firefox\crashreporter.exe.tmp	a37cbe8e0f11353501983b6c57216f50N.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	a37cbe8e0f11353501983b6c57216f50N.exe

C:\Users\Admin\AppData\Local\Temp\a37cbe8e0f11353501983b6c57216f50N.exe
"C:\Users\Admin\AppData\Local\Temp\a37cbe8e0f11353501983b6c57216f50N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:1512

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-1-5-21-3294248377-1418901787-4083263181-1000\desktop.ini.tmp

Filesize
131KB

MD5
0464682f1b33f7560f658ab299178e57

SHA1
f19ce78d1fe315979a705dbb31a0f74c7064307e

SHA256
f0228b93f228270c90478a79f8e96a0242a446a63f0849db0a33a3f7b8213f13

SHA512
82a3793156fa95bad2dbf8fa16dec80a20397d90cdc017ffbff4f60e6dac0ec03319bb132f7c00266695ea2f0350d9072a1634a4471c7371fd8fe490a018dd6c

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

Filesize
140KB

MD5
62e0f6a6de1084053d6710b469d18ff5

SHA1
280450fb6dc304403473e0cf8e7451e5d2fa6a17

SHA256
b473dfcc8fe149e59a15ac2207f0c78d7299d943b2501e15a7b6d04bc7a8bf76

SHA512
10ca50ecef74d66e0ab8a8e8cdf9a1f56293bbacb8342c859407595604d3fb19df992009a88f2a6948b259427b08bdf3f2ecf65404e06d9da03ee52afd3eddad

Download Submit
memory/1512-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1512-70-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download