c826006786c171c873d23065efeabe977e776ac575c70e598375d4d8522fb00e

General

Target

c76dd852ec33bcfccbd63176ae1eecf4_JaffaCakes118.exe
Size

524KB
MD5

c76dd852ec33bcfccbd63176ae1eecf4
SHA1

9252d6787b1a31371116971d16f6ce3c261bf5c1
SHA256

c826006786c171c873d23065efeabe977e776ac575c70e598375d4d8522fb00e
SHA512

a5f6c21f6a6fe59938e4c707bdabd1c6cd4f9df08a12b0ae9ce6ae3a7629d4ec5fe90d81b023e4683812b0a6334bb03e0f8f796dabcbad228b01fe7154ac2479
SSDEEP

6144:OJ7NlgLoqlYr1K1HJOBXz3GOh5nW1h0p0tqJuxrGbdl75vdI:07elYr14oBXz39n+B8Jusx

Score

10^/10

discovery evasion persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe C:\\WINDOWS\\csrss.exe"	c76dd852ec33bcfccbd63176ae1eecf4_JaffaCakes118.exe

Modifies firewall policy service 3 TTPs 4 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

description	ioc	Process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	c76dd852ec33bcfccbd63176ae1eecf4_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	c76dd852ec33bcfccbd63176ae1eecf4_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	c76dd852ec33bcfccbd63176ae1eecf4_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\WINDOWS\csrss.exe = "C:\\WINDOWS\\winlogon.exe"	c76dd852ec33bcfccbd63176ae1eecf4_JaffaCakes118.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	c76dd852ec33bcfccbd63176ae1eecf4_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	c76dd852ec33bcfccbd63176ae1eecf4_JaffaCakes118.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\mswinlogon = "C:\\WINDOWS\\mscsrss.exe"	c76dd852ec33bcfccbd63176ae1eecf4_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\systemupdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\c76dd852ec33bcfccbd63176ae1eecf4_JaffaCakes118.exe"	c76dd852ec33bcfccbd63176ae1eecf4_JaffaCakes118.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\WINDOWS\SysWOW64\MSWINSCK.OCX	c76dd852ec33bcfccbd63176ae1eecf4_JaffaCakes118.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	c76dd852ec33bcfccbd63176ae1eecf4_JaffaCakes118.exe

Modifies registry class 5 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BD211730-848A-F6FE-25B7-CBFA4A410CDA}\InProcServer32\ = "C:\\Windows\\SysWOW64\\TwinUI.dll"	c76dd852ec33bcfccbd63176ae1eecf4_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BD211730-848A-F6FE-25B7-CBFA4A410CDA}\InProcServer32\ThreadingModel = "Apartment"	c76dd852ec33bcfccbd63176ae1eecf4_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BD211730-848A-F6FE-25B7-CBFA4A410CDA}	c76dd852ec33bcfccbd63176ae1eecf4_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BD211730-848A-F6FE-25B7-CBFA4A410CDA}\ = "CLSID_ExtensionListContextMenu"	c76dd852ec33bcfccbd63176ae1eecf4_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BD211730-848A-F6FE-25B7-CBFA4A410CDA}\InProcServer32	c76dd852ec33bcfccbd63176ae1eecf4_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: 33	4384	c76dd852ec33bcfccbd63176ae1eecf4_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	4384	c76dd852ec33bcfccbd63176ae1eecf4_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4384	c76dd852ec33bcfccbd63176ae1eecf4_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\c76dd852ec33bcfccbd63176ae1eecf4_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\c76dd852ec33bcfccbd63176ae1eecf4_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Modifies firewall policy service
- Checks BIOS information in registry
- Adds Run key to start application
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:4384

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

1

T1547.004

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

1

T1547.004

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/4384-0-0x0000000000400000-0x00000000004C4000-memory.dmp

Filesize
784KB

Download
memory/4384-2-0x00000000005A0000-0x00000000005ED000-memory.dmp

Filesize
308KB

Download
memory/4384-7-0x0000000000400000-0x00000000004C4000-memory.dmp

Filesize
784KB

Download
memory/4384-10-0x00000000005A0000-0x00000000005ED000-memory.dmp

Filesize
308KB

Download
memory/4384-9-0x0000000000400000-0x00000000004C4000-memory.dmp

Filesize
784KB

Download
memory/4384-8-0x0000000000400000-0x00000000004C4000-memory.dmp

Filesize
784KB

Download
memory/4384-13-0x00000000005A0000-0x00000000005ED000-memory.dmp

Filesize
308KB

Download
memory/4384-15-0x0000000000400000-0x00000000004C4000-memory.dmp

Filesize
784KB

Download
memory/4384-16-0x00000000005A0000-0x00000000005ED000-memory.dmp

Filesize
308KB

Download
memory/4384-17-0x0000000000400000-0x00000000004C4000-memory.dmp

Filesize
784KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads