ramnit | 1b0719fb85fe2ea6f9bdc5a8debdcc998209162ab3fb66ff73daaa3f3a839689

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0"	JaffaCakes118_63db203857d3274284373b7b274eeaf0.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DoNotAllowExceptions = "0"	JaffaCakes118_63db203857d3274284373b7b274eeaf0.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "1"	JaffaCakes118_63db203857d3274284373b7b274eeaf0.exe

Ramnit
Ramnit is a versatile family that holds viruses, worms, and Trojans.
trojan spyware stealer worm banker ramnit
Ramnit family
ramnit
Sality
Sality is backdoor written in C++, first discovered in 2003.
backdoor sality
Sality family
sality

UAC bypass 3 TTPs 1 IoCs

Bypass User Account Control

T1548.002

Disable or Modify Tools

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	JaffaCakes118_63db203857d3274284373b7b274eeaf0.exe

Windows security bypass 2 TTPs 6 IoCs

Disable or Modify Tools

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1"	JaffaCakes118_63db203857d3274284373b7b274eeaf0.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	JaffaCakes118_63db203857d3274284373b7b274eeaf0.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UacDisableNotify = "1"	JaffaCakes118_63db203857d3274284373b7b274eeaf0.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	JaffaCakes118_63db203857d3274284373b7b274eeaf0.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	JaffaCakes118_63db203857d3274284373b7b274eeaf0.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	JaffaCakes118_63db203857d3274284373b7b274eeaf0.exe

Executes dropped EXE 1 IoCs

pid	Process
1556	WaterMark.exe

Windows security modification 2 TTPs 7 IoCs

Disable or Modify Tools

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	JaffaCakes118_63db203857d3274284373b7b274eeaf0.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1"	JaffaCakes118_63db203857d3274284373b7b274eeaf0.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	JaffaCakes118_63db203857d3274284373b7b274eeaf0.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UacDisableNotify = "1"	JaffaCakes118_63db203857d3274284373b7b274eeaf0.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\Svc	JaffaCakes118_63db203857d3274284373b7b274eeaf0.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	JaffaCakes118_63db203857d3274284373b7b274eeaf0.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	JaffaCakes118_63db203857d3274284373b7b274eeaf0.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

System Information Discovery

T1082

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	JaffaCakes118_63db203857d3274284373b7b274eeaf0.exe

UPX packed file 13 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2564-10-0x00000000032F0000-0x000000000437E000-memory.dmp	upx
behavioral2/memory/2564-5-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2564-16-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2564-9-0x00000000032F0000-0x000000000437E000-memory.dmp	upx
behavioral2/memory/2564-7-0x00000000032F0000-0x000000000437E000-memory.dmp	upx
behavioral2/memory/1556-31-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2564-18-0x00000000032F0000-0x000000000437E000-memory.dmp	upx
behavioral2/memory/2564-12-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2564-11-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2564-4-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2564-2-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2564-3-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1556-38-0x0000000000400000-0x0000000000421000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px8FBD.tmp	JaffaCakes118_63db203857d3274284373b7b274eeaf0.exe
File created	C:\Program Files (x86)\Microsoft\WaterMark.exe	JaffaCakes118_63db203857d3274284373b7b274eeaf0.exe
File opened for modification	C:\Program Files (x86)\Microsoft\WaterMark.exe	JaffaCakes118_63db203857d3274284373b7b274eeaf0.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SYSTEM.INI	JaffaCakes118_63db203857d3274284373b7b274eeaf0.exe

System Location Discovery: System Language Discovery 1 TTPs 3 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	JaffaCakes118_63db203857d3274284373b7b274eeaf0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WaterMark.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IEXPLORE.EXE

Modifies Internet Explorer settings 1 TTPs 31 IoCs

adware spyware

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31153393"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "2205860395"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31153393"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\AdapterInfo = "vendorId=\"0x10de\",deviceID=\"0x8c\",subSysID=\"0x0\",revision=\"0x0\",version=\"10.0.19041.546\"hypervisor=\"No Hypervisor (No SLAT)\""	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2209141109"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2205860395"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31153393"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "442571973"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{AF1F83D9-C8E4-11EF-A4B7-DEEFF298442C} = "0"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 18 IoCs

pid	Process
2564	JaffaCakes118_63db203857d3274284373b7b274eeaf0.exe
2564	JaffaCakes118_63db203857d3274284373b7b274eeaf0.exe
1556	WaterMark.exe
1556	WaterMark.exe
1556	WaterMark.exe
1556	WaterMark.exe
1556	WaterMark.exe
1556	WaterMark.exe
1556	WaterMark.exe
1556	WaterMark.exe
1556	WaterMark.exe
1556	WaterMark.exe
1556	WaterMark.exe
1556	WaterMark.exe
1556	WaterMark.exe
1556	WaterMark.exe
1556	WaterMark.exe
1556	WaterMark.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2564	JaffaCakes118_63db203857d3274284373b7b274eeaf0.exe
Token: SeDebugPrivilege	2564	JaffaCakes118_63db203857d3274284373b7b274eeaf0.exe
Token: SeDebugPrivilege	1556	WaterMark.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4924	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4924	iexplore.exe
4924	iexplore.exe
3424	IEXPLORE.EXE
3424	IEXPLORE.EXE
3424	IEXPLORE.EXE
3424	IEXPLORE.EXE

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2564	JaffaCakes118_63db203857d3274284373b7b274eeaf0.exe
1556	WaterMark.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2564 wrote to memory of 1556	2564	JaffaCakes118_63db203857d3274284373b7b274eeaf0.exe	82
PID 2564 wrote to memory of 1556	2564	JaffaCakes118_63db203857d3274284373b7b274eeaf0.exe	82
PID 2564 wrote to memory of 1556	2564	JaffaCakes118_63db203857d3274284373b7b274eeaf0.exe	82
PID 1556 wrote to memory of 1968	1556	WaterMark.exe	83
PID 1556 wrote to memory of 1968	1556	WaterMark.exe	83
PID 1556 wrote to memory of 1968	1556	WaterMark.exe	83
PID 1556 wrote to memory of 1968	1556	WaterMark.exe	83
PID 1556 wrote to memory of 1968	1556	WaterMark.exe	83
PID 1556 wrote to memory of 1968	1556	WaterMark.exe	83
PID 1556 wrote to memory of 1968	1556	WaterMark.exe	83
PID 1556 wrote to memory of 1968	1556	WaterMark.exe	83
PID 1556 wrote to memory of 1968	1556	WaterMark.exe	83
PID 1556 wrote to memory of 4924	1556	WaterMark.exe	84
PID 1556 wrote to memory of 4924	1556	WaterMark.exe	84
PID 1556 wrote to memory of 4308	1556	WaterMark.exe	85
PID 1556 wrote to memory of 4308	1556	WaterMark.exe	85
PID 4924 wrote to memory of 3424	4924	iexplore.exe	86
PID 4924 wrote to memory of 3424	4924	iexplore.exe	86
PID 4924 wrote to memory of 3424	4924	iexplore.exe	86

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	JaffaCakes118_63db203857d3274284373b7b274eeaf0.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_63db203857d3274284373b7b274eeaf0.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_63db203857d3274284373b7b274eeaf0.exe"
1⤵
- Modifies firewall policy service
- UAC bypass
- Windows security bypass
- Windows security modification
- Checks whether UAC is enabled
- Drops file in Program Files directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
- System policy modification
PID:2564
- C:\Program Files (x86)\Microsoft\WaterMark.exe
  "C:\Program Files (x86)\Microsoft\WaterMark.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of UnmapMainImage
  - Suspicious use of WriteProcessMemory
  PID:1556
- - C:\Windows\SysWOW64\svchost.exe
    C:\Windows\system32\svchost.exe
    3⤵
    PID:1968
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    3⤵
    - Modifies Internet Explorer settings
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4924
  - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4924 CREDAT:17410 /prefetch:2
      4⤵
      System Location Discovery: System Language Discovery
      Modifies Internet Explorer settings
      Suspicious use of SetWindowsHookEx
      PID:3424
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    3⤵
    - Modifies Internet Explorer settings
    PID:4308

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

Modify Registry