bf55a5463f29df35928b58290ec245672409c206b36e9333c724d383548578d3

General

Target

f578a3e6eedeae147f26e3c81198637a_JaffaCakes118.exe
Size

152KB
MD5

f578a3e6eedeae147f26e3c81198637a
SHA1

73f4f01f5a149192d3c1dc2c014d22653c5a9da4
SHA256

bf55a5463f29df35928b58290ec245672409c206b36e9333c724d383548578d3
SHA512

0fda1e21d75a586eff8be6d5c0eeec605598151c89e443b438cd751a25a1600037d45b247f7760cafb5cf7706811c251e0cc5b918d540b814fe034e469f67b94
SSDEEP

1536:3f73Ri7+ueTBdPafVjErsyTlU5sU3xGUG4UhAcI2roRjGWe3Zv5ArH7MnT+qjIty:P7ueG9ErYsU+AcI2rv3bo7MnTqtQdhZX

Score

6^/10

discovery persistence upx

Malware Config

Signatures

Modifies WinLogon 2 TTPs 8 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify	f578a3e6eedeae147f26e3c81198637a_JaffaCakes118.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\wlogon\Asynchronous = "1"	f578a3e6eedeae147f26e3c81198637a_JaffaCakes118.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\wlogon\Impersonate = "1"	f578a3e6eedeae147f26e3c81198637a_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\wlogon\Logon = "EvWinLogon"	f578a3e6eedeae147f26e3c81198637a_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\wlogon\Startup = "EvWinLogon"	f578a3e6eedeae147f26e3c81198637a_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\wlogon\StartShell = "EvWinLogon"	f578a3e6eedeae147f26e3c81198637a_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\wlogon\DLLName = "wlogon.dll"	f578a3e6eedeae147f26e3c81198637a_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\wlogon	f578a3e6eedeae147f26e3c81198637a_JaffaCakes118.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\wlogon.dll	f578a3e6eedeae147f26e3c81198637a_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\net.cpl	f578a3e6eedeae147f26e3c81198637a_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\lcss.exe	f578a3e6eedeae147f26e3c81198637a_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\crypto.dll	f578a3e6eedeae147f26e3c81198637a_JaffaCakes118.exe

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4956-0-0x0000000000400000-0x000000000041E000-memory.dmp	upx
behavioral2/files/0x00080000000234ab-5.dat	upx
behavioral2/memory/4956-25-0x0000000000400000-0x000000000041E000-memory.dmp	upx

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	f578a3e6eedeae147f26e3c81198637a_JaffaCakes118.exe

Modifies registry class 19 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WinCryptography.Encrypt\CurVer\ = "WinCryptography.Encrypt.1"	f578a3e6eedeae147f26e3c81198637a_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WinCryptography.Encrypt.1\ = "Windows Cryptography"	f578a3e6eedeae147f26e3c81198637a_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{310DE29C-0AD3-4A43-A2DB-221F1160CACB}\VersionIndependentProgID\ = "WinCryptography.Encrypt"	f578a3e6eedeae147f26e3c81198637a_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{310DE29C-0AD3-4A43-A2DB-221F1160CACB}\VersionIndependentProgID	f578a3e6eedeae147f26e3c81198637a_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinCryptography.Encrypt\CurVer	f578a3e6eedeae147f26e3c81198637a_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{310DE29C-0AD3-4A43-A2DB-221F1160CACB}\ProgID\ = "WinCryptography.Encrypt.1"	f578a3e6eedeae147f26e3c81198637a_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{310DE29C-0AD3-4A43-A2DB-221F1160CACB}\InprocServer32\ThreadingModel = "Both"	f578a3e6eedeae147f26e3c81198637a_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WinCryptography.Encrypt\ = "Windows Cryptography"	f578a3e6eedeae147f26e3c81198637a_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WinCryptography.Encrypt.1\CLSID\ = "{310DE29C-0AD3-4A43-A2DB-221F1160CACB}"	f578a3e6eedeae147f26e3c81198637a_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{310DE29C-0AD3-4A43-A2DB-221F1160CACB}\InprocServer32	f578a3e6eedeae147f26e3c81198637a_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{310DE29C-0AD3-4A43-A2DB-221F1160CACB}\ProgID	f578a3e6eedeae147f26e3c81198637a_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinCryptography.Encrypt.1	f578a3e6eedeae147f26e3c81198637a_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinCryptography.Encrypt.1\CLSID	f578a3e6eedeae147f26e3c81198637a_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{310DE29C-0AD3-4A43-A2DB-221F1160CACB}\ = "Windows Cryptography"	f578a3e6eedeae147f26e3c81198637a_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{310DE29C-0AD3-4A43-A2DB-221F1160CACB}\InprocServer32\ = "crypto.dll"	f578a3e6eedeae147f26e3c81198637a_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WinCryptography.Encrypt\CLSID\ = "{310DE29C-0AD3-4A43-A2DB-221F1160CACB}"	f578a3e6eedeae147f26e3c81198637a_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{310DE29C-0AD3-4A43-A2DB-221F1160CACB}	f578a3e6eedeae147f26e3c81198637a_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinCryptography.Encrypt	f578a3e6eedeae147f26e3c81198637a_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinCryptography.Encrypt\CLSID	f578a3e6eedeae147f26e3c81198637a_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeTakeOwnershipPrivilege	4956	f578a3e6eedeae147f26e3c81198637a_JaffaCakes118.exe
Token: SeDebugPrivilege	4956	f578a3e6eedeae147f26e3c81198637a_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\f578a3e6eedeae147f26e3c81198637a_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f578a3e6eedeae147f26e3c81198637a_JaffaCakes118.exe"
1⤵
- Modifies WinLogon
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
PID:4956

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Winlogon Helper DLL

1

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Winlogon Helper DLL

1

T1547.004

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Windows\SysWOW64\lcss.exe

Filesize
177KB

MD5
15e08261cf5c63a40745349a0603a0de

SHA1
6a132651ef71e32cbf9ef9f3ae790d1eab3cd1ed

SHA256
0d548808f75115fa752bd57d2083c08c8a4af86b2b9362fb55737567ae2ea5dc

SHA512
84b0e8bb59653e0bf72d0b3c4549d3bb456b2e83156872e5445323f006b2e88dbb2728f93bd60292f1054fc8352927f8e8dd6f8d6ed6cae75d9a5b6f087cdbc8

Download Submit
C:\Windows\SysWOW64\net.cpl

Filesize
103KB

MD5
b01071afc2be3361741348a41a6e61b6

SHA1
a2b300acfe41ac1cb8d360fe88389f1260afff4b

SHA256
be91bff68bcfc44d873052fc69d08e2c46860272cd9c2d78721f5b925a5feb4f

SHA512
8f0a85f31e0197558d3fbf2bad42645941f94af9e67cc2c4d4b83fc19b4f6500ee312dc2f9811cb3a6b62dfba4d1459bbb0f3939ecf77441de0679b0a09e7843

Download Submit
memory/4956-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/4956-25-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads