7e4fff4af0626025912656296147d2501b1409bd006e15b567d23312416aac12

General

Target

37c90b223266839f2bd1d857968248ad_JaffaCakes118.exe
Size

234KB
MD5

37c90b223266839f2bd1d857968248ad
SHA1

5aa80d64abea48916ee404ce1068f546bfaca43a
SHA256

7e4fff4af0626025912656296147d2501b1409bd006e15b567d23312416aac12
SHA512

71bed080f4fd19d13a48e58b4cf0a8260e41131e14c66b9ebf2392cc4296a353969e51ae081a2b9d1d9e904e4132269b951d1a4c6e4f9770d3273777a71f9da7
SSDEEP

768:cJjSO7E4+l8raRcW8XJk/GLr1Ep+GtAO1yJ/EDufyXCMg3Q1RU:wW4+ayaZk/GLr1e+Gv1yJ/Emg5g3ya

Score

10^/10

evasion persistence trojan

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\Userinit = "C:\\Windows\\system32\\winlogon32.exe"	37c90b223266839f2bd1d857968248ad_JaffaCakes118.exe

UAC bypass 3 TTPs 1 IoCs

evasion trojan

Bypass User Account Control

T1548.002

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	37c90b223266839f2bd1d857968248ad_JaffaCakes118.exe

Disables Task Manager via registry modification
evasion

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\smss32.exe = "C:\\Windows\\system32\\smss32.exe"	37c90b223266839f2bd1d857968248ad_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\smss32.exe = "C:\\Windows\\system32\\smss32.exe"	37c90b223266839f2bd1d857968248ad_JaffaCakes118.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	37c90b223266839f2bd1d857968248ad_JaffaCakes118.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\winlogon32.exe	37c90b223266839f2bd1d857968248ad_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\smss32.exe	37c90b223266839f2bd1d857968248ad_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\smss32.exe	37c90b223266839f2bd1d857968248ad_JaffaCakes118.exe

Modifies Internet Explorer Phishing Filter 1 TTPs 5 IoCs

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Internet Explorer\PhishingFilter	37c90b223266839f2bd1d857968248ad_JaffaCakes118.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Internet Explorer\PhishingFilter\EnabledV8 = "0"	37c90b223266839f2bd1d857968248ad_JaffaCakes118.exe
Key created	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Software\Microsoft\Internet Explorer\PhishingFilter	37c90b223266839f2bd1d857968248ad_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\SOFTWARE\Microsoft\Internet Explorer\PhishingFilter\Enabled = "0"	37c90b223266839f2bd1d857968248ad_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\SOFTWARE\Microsoft\Internet Explorer\PhishingFilter\EnabledV8 = "0"	37c90b223266839f2bd1d857968248ad_JaffaCakes118.exe

System policy modification 1 TTPs 7 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer	37c90b223266839f2bd1d857968248ad_JaffaCakes118.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoSetActiveDesktop = "1"	37c90b223266839f2bd1d857968248ad_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\ActiveDesktop	37c90b223266839f2bd1d857968248ad_JaffaCakes118.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\ActiveDesktop\NoChangingWallpaper = "1"	37c90b223266839f2bd1d857968248ad_JaffaCakes118.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoActiveDesktopChanges = "1"	37c90b223266839f2bd1d857968248ad_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System	37c90b223266839f2bd1d857968248ad_JaffaCakes118.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	37c90b223266839f2bd1d857968248ad_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\37c90b223266839f2bd1d857968248ad_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\37c90b223266839f2bd1d857968248ad_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- UAC bypass
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in System32 directory
- Modifies Internet Explorer Phishing Filter
- System policy modification
PID:3780

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

Privilege Escalation

Abuse Elevation Control Mechanism

1

T1548

Bypass User Account Control

1

T1548.002

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

1

T1547.004

Defense Evasion

Abuse Elevation Control Mechanism

1

T1548

Bypass User Account Control

1

T1548.002

Impair Defenses

1

T1562

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3780-0-0x00000000008C0000-0x00000000008C2000-memory.dmp

Filesize
8KB

Download
memory/3780-1-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/3780-7-0x00000000008C0000-0x00000000008C2000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads