phobos | 8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178

General

Target

8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178.exe
Size

220KB
MD5

6f479074761ed9fcd8eab62e378dd861
SHA1

8dfbcabb2c4c5c7aeaf13849c142073b14ed7c45
SHA256

8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178
SHA512

171dfb6f9fabbdc794cf070e37e37900c985c5c7c1cd34fb944ffae18d552d1e0da58531b64a681d76c1d60d27552ad08220c633beb8e1a52a58ea9d070c7946

Score

10^/10

phobos discovery persistence ransomware

Malware Config

Signatures

Phobos
Phobos ransomware appeared at the beginning of 2019.
ransomware phobos
Creates a large amount of network flows 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Scanning
T1046
Drops startup file 1 IoCs

Processes:

svchost.exe

description ioc process

File created \??\c:\users\admin\appdata\roaming\microsoft\windows\start menu\programs\startup\svchost.exe svchost.exe

description	ioc	process
File created	\??\c:\users\admin\appdata\roaming\microsoft\windows\start menu\programs\startup\svchost.exe	svchost.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Users\\Admin\\AppData\\Local\\svchost.exe"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3440072777-2118400376-1759599358-1000\Software\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Users\\Admin\\AppData\\Local\\svchost.exe"	svchost.exe

Drops desktop.ini file(s) 3 IoCs

Processes:

svchost.exe

description	ioc	process
File opened for modification	C:\$Recycle.Bin\S-1-5-21-3440072777-2118400376-1759599358-1000\desktop.ini	svchost.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\Stationery\Desktop.ini	svchost.exe
File opened for modification	C:\Program Files\desktop.ini	svchost.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178.exe

description	pid	process	target process
PID 1976 set thread context of 1648	1976	8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178.exe	svchost.exe

Drops file in Program Files directory 64 IoCs

Processes:

svchost.exe

description	ioc	process
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\currency.data	svchost.exe
File opened for modification	C:\Program Files\Common Files\System\msadc\de-DE\msadcer.dll.mui	svchost.exe
File created	C:\Program Files\Java\jdk1.7.0_80\jre\bin\glib-lite.dll.id[07C4AA57-2275].[[email protected]].Adame	svchost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\images\cursors\invalid32x32.gif	svchost.exe
File created	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Bahia_Banderas.id[07C4AA57-2275].[[email protected]].Adame	svchost.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\ko-KR\tipresx.dll.mui	svchost.exe
File opened for modification	C:\Program Files\Internet Explorer\ieproxy.dll	svchost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Asia\Qyzylorda	svchost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Europe\Sofia	svchost.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.emf.ecore_2.10.1.v20140901-1043\META-INF\ECLIPSE_.SF.id[07C4AA57-2275].[[email protected]].Adame	svchost.exe
File opened for modification	C:\Program Files\7-Zip\Lang\uz.txt	svchost.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\Filters.xml	svchost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\java.exe	svchost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.p2.core.nl_ja_4.4.0.v20140623020002.jar	svchost.exe
File created	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Africa\Accra.id[07C4AA57-2275].[[email protected]].Adame	svchost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.ecf.filetransfer.ssl.feature_1.0.0.v20140827-1444\feature.xml	svchost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.console.ui.notification_5.5.0.165303\html\dcommon\gifs\oracle.gif	svchost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.rjmx.ext_5.5.0.165303.jar	svchost.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.rjmx_5.5.0.165303\META-INF\MANIFEST.MF.id[07C4AA57-2275].[[email protected]].Adame	svchost.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\fr-FR\IPSEventLogMsg.dll.mui	svchost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Europe\Zaporozhye	svchost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\SystemV\EST5	svchost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.rcp.intro.zh_CN_5.5.0.165303.jar	svchost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.p2.jarprocessor.nl_ja_4.4.0.v20140623020002.jar	svchost.exe
File opened for modification	C:\Program Files\7-Zip\Lang\nn.txt	svchost.exe
File created	C:\Program Files\Java\jdk1.7.0_80\jre\lib\calendars.properties.id[07C4AA57-2275].[[email protected]].Adame	svchost.exe
File created	C:\Program Files\Java\jdk1.7.0_80\jre\lib\fonts\LucidaBrightDemiItalic.ttf.id[07C4AA57-2275].[[email protected]].Adame	svchost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\management\jmxremote.access	svchost.exe
File created	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Asia\Omsk.id[07C4AA57-2275].[[email protected]].Adame	svchost.exe
File created	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\EET.id[07C4AA57-2275].[[email protected]].Adame	svchost.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.ecf.filetransfer.feature_3.9.0.v20140827-1444\META-INF\MANIFEST.MF.id[07C4AA57-2275].[[email protected]].Adame	svchost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.console.ui.ja_5.5.0.165303.jar	svchost.exe
File opened for modification	C:\Program Files\7-Zip\7-zip32.dll	svchost.exe
File opened for modification	C:\Program Files\7-Zip\Lang\kaa.txt	svchost.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\Stationery\GreenBubbles.jpg	svchost.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\HueCycle\colorcycle.png	svchost.exe
File created	C:\Program Files\Google\Chrome\Application\89.0.4389.114\Locales\ml.pak.id[07C4AA57-2275].[[email protected]].Adame	svchost.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\com.jrockit.mc.rcp.product_5.5.0.165303\feature.xml.id[07C4AA57-2275].[[email protected]].Adame	svchost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\db\bin\setNetworkServerCP.bat	svchost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Asia\Kamchatka	svchost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.browser.jdp.zh_CN_5.5.0.165303.jar	svchost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.p2.metadata_2.2.0.v20131211-1531.jar	svchost.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\OfficeSoftwareProtectionPlatform\OSPPC.DLL	svchost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\javah.exe	svchost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\deploy\messages_sv.properties	svchost.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\it-IT\InkObj.dll.mui	svchost.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\HueCycle\NavigationUp_ButtonGraphic.png	svchost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Asia\Khandyga	svchost.exe
File opened for modification	C:\Program Files\Common Files\SpeechEngines\Microsoft\TTS20\MSTTSCommon.dll	svchost.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\Stacking\15x15dot.png	svchost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Boa_Vista	svchost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Thunder_Bay	svchost.exe
File created	C:\Program Files\Common Files\Microsoft Shared\OfficeSoftwareProtectionPlatform\OSPPWMI.DLL.id[07C4AA57-2275].[[email protected]].Adame	svchost.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\Shatter\203x8subpicture.png	svchost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Indiana\Indianapolis	svchost.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.rjmx.ja_5.5.0.165303.jar.id[07C4AA57-2275].[[email protected]].Adame	svchost.exe
File created	C:\Program Files\Google\Chrome\Application\89.0.4389.114\chrome.exe.sig.id[07C4AA57-2275].[[email protected]].Adame	svchost.exe
File created	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Maceio.id[07C4AA57-2275].[[email protected]].Adame	svchost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.console.ui.notification_5.5.0.165303\html\dcommon\gifs\toc.gif	svchost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\msvcr100.dll	svchost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\jfr.jar	svchost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\St_Johns	svchost.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.id[07C4AA57-2275].[[email protected]].Adame	svchost.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.rjmx.ui_5.5.0.165303.jar.id[07C4AA57-2275].[[email protected]].Adame	svchost.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

NTFS ADS 1 IoCs

Processes:

cmd.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Temp\8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178.exe:Zone.Identifier	cmd.exe

Suspicious behavior: EnumeratesProcesses 62 IoCs

Processes:

svchost.exe

pid	process
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe
1648	svchost.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178.exe

description pid process

Token: SeDebugPrivilege 1976 8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178.exe

description	pid	process
Token: SeDebugPrivilege	1976	8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178.exe

description	pid	process	target process
PID 1976 wrote to memory of 944	1976	8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178.exe	cmd.exe
PID 1976 wrote to memory of 944	1976	8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178.exe	cmd.exe
PID 1976 wrote to memory of 944	1976	8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178.exe	cmd.exe
PID 1976 wrote to memory of 944	1976	8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178.exe	cmd.exe
PID 1976 wrote to memory of 1648	1976	8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178.exe	svchost.exe
PID 1976 wrote to memory of 1648	1976	8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178.exe	svchost.exe
PID 1976 wrote to memory of 1648	1976	8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178.exe	svchost.exe
PID 1976 wrote to memory of 1648	1976	8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178.exe	svchost.exe
PID 1976 wrote to memory of 1648	1976	8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178.exe	svchost.exe
PID 1976 wrote to memory of 1648	1976	8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178.exe	svchost.exe
PID 1976 wrote to memory of 1648	1976	8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178.exe	svchost.exe
PID 1976 wrote to memory of 1648	1976	8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178.exe	svchost.exe
PID 1976 wrote to memory of 1648	1976	8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178.exe	svchost.exe
PID 1976 wrote to memory of 1648	1976	8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178.exe	svchost.exe
PID 1976 wrote to memory of 1648	1976	8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178.exe
"C:\Users\Admin\AppData\Local\Temp\8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1976
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C type nul > "C:\Users\Admin\AppData\Local\Temp\8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178.exe:Zone.Identifier"
  2⤵
  - NTFS ADS
  PID:944
- C:\Windows\SysWOW64\svchost.exe
  C:\Windows\system32\svchost.exe
  2⤵
  - Drops startup file
  - Adds Run key to start application
  - Drops desktop.ini file(s)
  - Drops file in Program Files directory
  - Suspicious behavior: EnumeratesProcesses
  PID:1648
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    PID:856

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Network Service Scanning

1

T1046

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/944-57-0x0000000000000000-mapping.dmp

Download
memory/1648-61-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1648-63-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1648-72-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1648-58-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1648-59-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1648-71-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1648-62-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1648-70-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1648-64-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1648-66-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1648-67-0x0000000000402518-mapping.dmp

Download
memory/1976-56-0x0000000076901000-0x0000000076903000-memory.dmp

Filesize
8KB

Download
memory/1976-54-0x0000000001220000-0x000000000125C000-memory.dmp

Filesize
240KB

Download
memory/1976-55-0x0000000000890000-0x00000000008B4000-memory.dmp

Filesize
144KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads