6c152b0129287ca03477ac12b6df40ef46c7330df2e97197e841757578e0f5ac

Disable or Modify System Firewall

T1562.004

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\FirewallRules\{C3E9B20A-B7E2-4aab-9835-3C548937E46F} = "v2.10\|Action=Allow\|Active=TRUE\|Dir=Out\|Profile=Private\|Profile=Public\|App=C:\\Windows\\explorer.exe\|Name=Windows Shell\|Desc=Windows Shell Networking\|"	4a84e173a5ffa3e55d745b4e7527c466_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\FirewallRules\{B078B2B6-A878-44ff-9BCC-458257924F96} = "v2.10\|Action=Allow\|Active=TRUE\|Dir=In\|Protocol=6\|Profile=Private\|Profile=Public\|App=C:\\Windows\\explorer.exe\|Name=Windows Explorer\|"	4a84e173a5ffa3e55d745b4e7527c466_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\FirewallRules\{92459C5E-D350-4cba-AA74-C8F989C9336F} = "v2.10\|Action=Allow\|Active=TRUE\|Dir=Out\|Protocol=6\|Profile=Private\|Profile=Public\|App=C:\\Windows\\explorer.exe\|Name=Windows Explorer\|"	4a84e173a5ffa3e55d745b4e7527c466_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\FirewallRules\{7ACC6E87-8C12-4adb-91B7-EFC3F2F4705A} = "v2.10\|Action=Allow\|Active=TRUE\|Dir=In\|Protocol=17\|Profile=Private\|Profile=Public\|App=C:\\Windows\\explorer.exe\|Name=Windows Explorer\|"	4a84e173a5ffa3e55d745b4e7527c466_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\FirewallRules\{B1A40E4F-58DB-490f-9D18-55B5194E8BD5} = "v2.10\|Action=Allow\|Active=TRUE\|Dir=Out\|Protocol=17\|Profile=Private\|Profile=Public\|App=C:\\Windows\\explorer.exe\|Name=Windows Explorer\|"	4a84e173a5ffa3e55d745b4e7527c466_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\FirewallRules\{77BE3E79-6E80-4212-8F05-80BBD9E2F270} = "v2.10\|Action=Allow\|Active=TRUE\|Dir=In\|Profile=Private\|Profile=Public\|App=C:\\Windows\\explorer.exe\|Name=Windows Shell\|Desc=Windows Shell Networking\|"	4a84e173a5ffa3e55d745b4e7527c466_JaffaCakes118.exe

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

persistence privilege_escalation

Disable or Modify System Firewall

T1562.004

pid	Process
2624	netsh.exe

Loads dropped DLL 1 IoCs

pid	Process
3040	4a84e173a5ffa3e55d745b4e7527c466_JaffaCakes118.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3040-5-0x0000000010000000-0x0000000010074000-memory.dmp	upx
behavioral1/memory/3040-9-0x0000000010000000-0x0000000010074000-memory.dmp	upx
behavioral1/memory/3040-11-0x0000000010000000-0x0000000010074000-memory.dmp	upx
behavioral1/memory/3040-17-0x0000000010000000-0x0000000010074000-memory.dmp	upx

Installs/modifies Browser Helper Object 2 TTPs 2 IoCs

BHOs are DLL modules which act as plugins for Internet Explorer.

stealer adware

Modify Registry

T1112

Browser Extensions

T1176

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects	4a84e173a5ffa3e55d745b4e7527c466_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{166A9954-E453-4571-9640-BD74F015B92f}	4a84e173a5ffa3e55d745b4e7527c466_JaffaCakes118.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\dsdmo32.dll	4a84e173a5ffa3e55d745b4e7527c466_JaffaCakes118.exe

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

System Information Discovery
T1082

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

Netsh Helper DLL

T1546.007

description	ioc	Process
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (data)	\REGISTRY\USER\S-1-5-21-3502430532-24693940-2469786940-1000\Software\Microsoft\Internet Explorer\Main\XMLHTTP_UUID_Default = 54996a1653e471459640bd74f015b92f	4a84e173a5ffa3e55d745b4e7527c466_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3502430532-24693940-2469786940-1000\Software\Microsoft\Internet Explorer\Main\ToolBarPosition = "1721061812"	4a84e173a5ffa3e55d745b4e7527c466_JaffaCakes118.exe

Modifies data under HKEY_USERS 18 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT	4a84e173a5ffa3e55d745b4e7527c466_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Netwhywmax\CLSID\ = "{1e8a9da1-5723-4dbe-8dab-57231def7746}"	4a84e173a5ffa3e55d745b4e7527c466_JaffaCakes118.exe
Key created	\REGISTRY\USER\S-1-5-19\Software\Netwhywmax	4a84e173a5ffa3e55d745b4e7527c466_JaffaCakes118.exe
Key created	\REGISTRY\USER\S-1-5-20\Software\Netwhywmax	4a84e173a5ffa3e55d745b4e7527c466_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Internet Explorer\Main\XMLHTTP_UUID_Default = 54996a1653e471459640bd74f015b92f	4a84e173a5ffa3e55d745b4e7527c466_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Netwhywmax\CLSID	4a84e173a5ffa3e55d745b4e7527c466_JaffaCakes118.exe
Key created	\REGISTRY\USER\S-1-5-20	4a84e173a5ffa3e55d745b4e7527c466_JaffaCakes118.exe
Key created	\REGISTRY\USER\S-1-5-19\Software\Netwhywmax\CLSID	4a84e173a5ffa3e55d745b4e7527c466_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-19\Software\Netwhywmax\CLSID\ = "{1e8a9da1-5723-4dbe-8dab-57231def7746}"	4a84e173a5ffa3e55d745b4e7527c466_JaffaCakes118.exe
Key created	\REGISTRY\USER\S-1-5-20\Software\Netwhywmax\CLSID	4a84e173a5ffa3e55d745b4e7527c466_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\S-1-5-20\Software\Microsoft\Internet Explorer\Main\XMLHTTP_UUID_Default = 54996a1653e471459640bd74f015b92f	4a84e173a5ffa3e55d745b4e7527c466_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Netwhywmax	4a84e173a5ffa3e55d745b4e7527c466_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Netwhywmax\CLSID	4a84e173a5ffa3e55d745b4e7527c466_JaffaCakes118.exe
Key created	\REGISTRY\USER\S-1-5-19	4a84e173a5ffa3e55d745b4e7527c466_JaffaCakes118.exe
Key created	\REGISTRY\USER\S-1-5-19\Software	4a84e173a5ffa3e55d745b4e7527c466_JaffaCakes118.exe
Key created	\REGISTRY\USER\S-1-5-20\Software	4a84e173a5ffa3e55d745b4e7527c466_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\Software\Netwhywmax\CLSID\ = "{1e8a9da1-5723-4dbe-8dab-57231def7746}"	4a84e173a5ffa3e55d745b4e7527c466_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software	4a84e173a5ffa3e55d745b4e7527c466_JaffaCakes118.exe

Modifies registry class 16 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Netwhywmax	4a84e173a5ffa3e55d745b4e7527c466_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{166A9954-E453-4571-9640-BD74F015B92f}	4a84e173a5ffa3e55d745b4e7527c466_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Netwhywmax\CLSID	4a84e173a5ffa3e55d745b4e7527c466_JaffaCakes118.exe
Key created	\REGISTRY\USER\S-1-5-21-3502430532-24693940-2469786940-1000_Classes\Software\Netwhywmax\CLSID	4a84e173a5ffa3e55d745b4e7527c466_JaffaCakes118.exe
Key created	\REGISTRY\USER\S-1-5-21-3502430532-24693940-2469786940-1000_CLASSES\Software\Netwhywmax	4a84e173a5ffa3e55d745b4e7527c466_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.fsharproj\PersistentHandler	4a84e173a5ffa3e55d745b4e7527c466_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{166A9954-E453-4571-9640-BD74F015B92f}\InprocServer32	4a84e173a5ffa3e55d745b4e7527c466_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Netwhywmax\CLSID\ = "{1e8a9da1-5723-4dbe-8dab-57231def7746}"	4a84e173a5ffa3e55d745b4e7527c466_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1e8a9da1-5723-4dbe-8dab-57231def7746}	4a84e173a5ffa3e55d745b4e7527c466_JaffaCakes118.exe
Key created	\REGISTRY\USER\S-1-5-21-3502430532-24693940-2469786940-1000_CLASSES\Software	4a84e173a5ffa3e55d745b4e7527c466_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.fsharproj	4a84e173a5ffa3e55d745b4e7527c466_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{166A9954-E453-4571-9640-BD74F015B92f}\InprocServer32\ = "C:\\Windows\\SysWow64\\dsdmo32.dll"	4a84e173a5ffa3e55d745b4e7527c466_JaffaCakes118.exe
Key created	\REGISTRY\USER\S-1-5-21-3502430532-24693940-2469786940-1000_CLASSES\Software\Netwhywmax\CLSID	4a84e173a5ffa3e55d745b4e7527c466_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3502430532-24693940-2469786940-1000_CLASSES\Software\Netwhywmax\CLSID\ = "{1e8a9da1-5723-4dbe-8dab-57231def7746}"	4a84e173a5ffa3e55d745b4e7527c466_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.fsharproj\PersistentHandler\ = "{2c50c8c6-d037-4d5b-ba00-60e2905e37b4}"	4a84e173a5ffa3e55d745b4e7527c466_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{166A9954-E453-4571-9640-BD74F015B92f}\InprocServer32\ThreadingModel = "Both"	4a84e173a5ffa3e55d745b4e7527c466_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3040 wrote to memory of 2624	3040	4a84e173a5ffa3e55d745b4e7527c466_JaffaCakes118.exe	30
PID 3040 wrote to memory of 2624	3040	4a84e173a5ffa3e55d745b4e7527c466_JaffaCakes118.exe	30
PID 3040 wrote to memory of 2624	3040	4a84e173a5ffa3e55d745b4e7527c466_JaffaCakes118.exe	30
PID 3040 wrote to memory of 2624	3040	4a84e173a5ffa3e55d745b4e7527c466_JaffaCakes118.exe	30

C:\Users\Admin\AppData\Local\Temp\4a84e173a5ffa3e55d745b4e7527c466_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\4a84e173a5ffa3e55d745b4e7527c466_JaffaCakes118.exe"
1⤵
- Modifies firewall policy service
- Loads dropped DLL
- Installs/modifies Browser Helper Object
- Drops file in System32 directory
- Modifies Internet Explorer settings
- Modifies data under HKEY_USERS
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:3040
- C:\Windows\SysWOW64\netsh.exe
  "C:\Windows\system32\netsh.exe" firewall add allowedprogram program="C:\Windows\explorer.exe" name="Windows Shell" mode=ENABLE scope=ALL profile=ALL
  2⤵
  - Modifies Windows Firewall
  - Event Triggered Execution: Netsh Helper DLL
  PID:2624

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Browser Extensions

T1176

Create or Modify System Process

T1543

Windows Service

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

System Information Discovery