3830b10961d2909f731faf946fef02ef5343dbb7fdbfe4e70db61558c29da6e8

General

Target
jaffacakes118_3830b10961d2909f731faf946fef02ef5343dbb7fdbfe4e70db61558c29da6e8.exe
Size 1.5MB
Sample260930-qll18a1dmf
SHA256 3830b10961d2909f731faf946fef02ef5343dbb7fdbfe4e70db61558c29da6e8
MD5 b89a290a41689e6c91794d4e9c8f346d
SHA1 842e4e6b25cdbba7d676cf02aae4a73e3f160ddd
SHA512 55c861fab8417ee85dce7bb6d1124f0f69979e9841036bd43866d2efec05e6b1caa2433797504ccdbfea9365d895523705156e61dac91147cdb8474403169b94
SSDEEP 24576:6ctFO431U0XwvjN/v8a6r3ugETwq16n0Bgx7bc46dHXGQcdo6z2gd3AgMclN:6V4FU0XeGhETwI6rpFoH2QC2gdQgFN
TLSH
T1C76533081EF4FAF6F2BF56719C82808CD51ABA70863A0403611E973767F3A85D896777
MD5 SHA1 SHA512 SSDEEP TLSH

Score

8^/10

defense_evasion discovery persistence privilege_escalation

Malware Config

Signatures

Modifies Windows Firewall 2 TTPs 2 IoCs

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
1768	netsh.exe
908	netsh.exe

Executes dropped EXE 2 IoCs

pid	Process
2724	cfgdll.exe
2016	cfgdll.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\cfgdll.exe	jaffacakes118_3830b10961d2909f731faf946fef02ef5343dbb7fdbfe4e70db61558c29da6e8.exe
File opened for modification	C:\Windows\SysWOW64\cfgdll.exe.log	cfgdll.exe
File opened for modification	C:\Windows\SysWOW64\cfgdll.exe.log	cfgdll.exe

Event Triggered Execution: Netsh Helper DLL 1 TTPs 6 IoCs

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

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
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
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Reads the TCP/IP host and domain name from the registry 1 TTPs 6 IoCs

The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

discovery

System Network Configuration Discovery

T1016

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	cfgdll.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	cfgdll.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	cfgdll.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	jaffacakes118_3830b10961d2909f731faf946fef02ef5343dbb7fdbfe4e70db61558c29da6e8.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	jaffacakes118_3830b10961d2909f731faf946fef02ef5343dbb7fdbfe4e70db61558c29da6e8.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	cfgdll.exe

System Location Discovery: System Language Discovery 1 TTPs 5 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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jaffacakes118_3830b10961d2909f731faf946fef02ef5343dbb7fdbfe4e70db61558c29da6e8.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cfgdll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cfgdll.exe

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	cfgdll.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	cfgdll.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	cfgdll.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	cfgdll.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	cfgdll.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2016	cfgdll.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3564 wrote to memory of 2724	3564	jaffacakes118_3830b10961d2909f731faf946fef02ef5343dbb7fdbfe4e70db61558c29da6e8.exe	90
PID 2016 wrote to memory of 1768	2016	cfgdll.exe	92
PID 2016 wrote to memory of 908	2016	cfgdll.exe	94

C:\Users\Admin\AppData\Local\Temp\jaffacakes118_3830b10961d2909f731faf946fef02ef5343dbb7fdbfe4e70db61558c29da6e8.exe
"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_3830b10961d2909f731faf946fef02ef5343dbb7fdbfe4e70db61558c29da6e8.exe"
1⤵
- Drops file in System32 directory
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3564
- C:\Windows\SysWOW64\cfgdll.exe
  "C:\Windows\system32\cfgdll.exe" /i
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - Reads the TCP/IP host and domain name from the registry
  - System Location Discovery: System Language Discovery
  PID:2724

C:\Windows\SysWOW64\cfgdll.exe
"C:\Windows\SysWOW64\cfgdll.exe" /s /p 27016
1⤵
- Executes dropped EXE
- Drops file in System32 directory
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2016
- C:\Windows\SysWOW64\netsh.exe
  C:\Windows\system32\netsh.exe advfirewall firewall delete rule name="cfgdll.exe"
  2⤵
  - Modifies Windows Firewall
  - Event Triggered Execution: Netsh Helper DLL
  - System Location Discovery: System Language Discovery
  PID:1768
- C:\Windows\SysWOW64\netsh.exe
  C:\Windows\system32\netsh.exe advfirewall firewall add rule name="cfgdll.exe" dir=in action=allow program="C:\Windows\SysWOW64\cfgdll.exe" enable=yes profile=any
  2⤵
  - Modifies Windows Firewall
  - Event Triggered Execution: Netsh Helper DLL
  - System Location Discovery: System Language Discovery
  PID:908

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

1

T1562.004

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

cfgdll.exe

Path C:\Windows\SysWOW64\cfgdll.exe
Size 1.5MB
SHA256 3830b10961d2909f731faf946fef02ef5343dbb7fdbfe4e70db61558c29da6e8
MD5 b89a290a41689e6c91794d4e9c8f346d
SHA1 842e4e6b25cdbba7d676cf02aae4a73e3f160ddd
SHA512 55c861fab8417ee85dce7bb6d1124f0f69979e9841036bd43866d2efec05e6b1caa2433797504ccdbfea9365d895523705156e61dac91147cdb8474403169b94
SSDEEP 24576:6ctFO431U0XwvjN/v8a6r3ugETwq16n0Bgx7bc46dHXGQcdo6z2gd3AgMclN:6V4FU0XeGhETwI6rpFoH2QC2gdQgFN
TLSH
T1C76533081EF4FAF6F2BF56719C82808CD51ABA70863A0403611E973767F3A85D896777
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/2016-10-0x0000000000A00000-0x0000000000B00000-memory.dmp

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memory/2016-16-0x0000000000400000-0x000000000052FBF5-memory.dmp

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memory/2016-17-0x0000000000A00000-0x0000000000B00000-memory.dmp

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memory/2016-18-0x0000000000400000-0x000000000052FBF5-memory.dmp

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memory/2724-5-0x0000000000A50000-0x0000000000B50000-memory.dmp

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memory/2724-14-0x0000000000400000-0x000000000052FBF5-memory.dmp

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memory/3564-0-0x0000000000B50000-0x0000000000C50000-memory.dmp

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memory/3564-1-0x0000000000400000-0x000000000052FBF5-memory.dmp

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memory/3564-15-0x0000000000400000-0x000000000052FBF5-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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