tofsee | 700893c0f8426f83c2731df16e089f2f463eaf91c4cd07f2feddf826a8581d10

General

Target

JaffaCakes118_700893c0f8426f83c2731df16e089f2f463eaf91c4cd07f2feddf826a8581d10.exe
Size

332KB
MD5

8b10f8df78e752a7f7185dafcf21a73a
SHA1

719fbd6bffe35110995f357ef38e4ceba1532ed8
SHA256

700893c0f8426f83c2731df16e089f2f463eaf91c4cd07f2feddf826a8581d10
SHA512

40f3e6727f60b50b3aa803938540ff47b14e3c1a21deef0d072bf7edc77a1ce091deadaff4505571e0fd6c227811167e5bbd1570cef5b46fee9c50299cc50835
SSDEEP

6144:boO+WzjWb0yklQbZG8dn6MyrMlTJhct0rDyChIo:E5QWb0plQbZG8dn6MYiTJh7/HI

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

quadoil.ru

lakeflex.ru

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee
Tofsee family
tofsee
Creates new service(s) 2 TTPs
persistence execution

Windows Service
T1543.003

Service Execution
T1569.002

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2444	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\hxilqkkx\ImagePath = "C:\\Windows\\SysWOW64\\hxilqkkx\\iettyflc.exe"	svchost.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	JaffaCakes118_700893c0f8426f83c2731df16e089f2f463eaf91c4cd07f2feddf826a8581d10.exe

Deletes itself 1 IoCs

pid	Process
4752	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1408	iettyflc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1408 set thread context of 4752	1408	iettyflc.exe	101

Launches sc.exe 3 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
4820	sc.exe
1688	sc.exe
2688	sc.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.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
632	4484	WerFault.exe	82
4112	1408	WerFault.exe	94

System Location Discovery: System Language Discovery 1 TTPs 9 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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_700893c0f8426f83c2731df16e089f2f463eaf91c4cd07f2feddf826a8581d10.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	iettyflc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4484 wrote to memory of 1332	4484	JaffaCakes118_700893c0f8426f83c2731df16e089f2f463eaf91c4cd07f2feddf826a8581d10.exe	83
PID 4484 wrote to memory of 1332	4484	JaffaCakes118_700893c0f8426f83c2731df16e089f2f463eaf91c4cd07f2feddf826a8581d10.exe	83
PID 4484 wrote to memory of 1332	4484	JaffaCakes118_700893c0f8426f83c2731df16e089f2f463eaf91c4cd07f2feddf826a8581d10.exe	83
PID 4484 wrote to memory of 2952	4484	JaffaCakes118_700893c0f8426f83c2731df16e089f2f463eaf91c4cd07f2feddf826a8581d10.exe	86
PID 4484 wrote to memory of 2952	4484	JaffaCakes118_700893c0f8426f83c2731df16e089f2f463eaf91c4cd07f2feddf826a8581d10.exe	86
PID 4484 wrote to memory of 2952	4484	JaffaCakes118_700893c0f8426f83c2731df16e089f2f463eaf91c4cd07f2feddf826a8581d10.exe	86
PID 4484 wrote to memory of 4820	4484	JaffaCakes118_700893c0f8426f83c2731df16e089f2f463eaf91c4cd07f2feddf826a8581d10.exe	88
PID 4484 wrote to memory of 4820	4484	JaffaCakes118_700893c0f8426f83c2731df16e089f2f463eaf91c4cd07f2feddf826a8581d10.exe	88
PID 4484 wrote to memory of 4820	4484	JaffaCakes118_700893c0f8426f83c2731df16e089f2f463eaf91c4cd07f2feddf826a8581d10.exe	88
PID 4484 wrote to memory of 1688	4484	JaffaCakes118_700893c0f8426f83c2731df16e089f2f463eaf91c4cd07f2feddf826a8581d10.exe	90
PID 4484 wrote to memory of 1688	4484	JaffaCakes118_700893c0f8426f83c2731df16e089f2f463eaf91c4cd07f2feddf826a8581d10.exe	90
PID 4484 wrote to memory of 1688	4484	JaffaCakes118_700893c0f8426f83c2731df16e089f2f463eaf91c4cd07f2feddf826a8581d10.exe	90
PID 4484 wrote to memory of 2688	4484	JaffaCakes118_700893c0f8426f83c2731df16e089f2f463eaf91c4cd07f2feddf826a8581d10.exe	92
PID 4484 wrote to memory of 2688	4484	JaffaCakes118_700893c0f8426f83c2731df16e089f2f463eaf91c4cd07f2feddf826a8581d10.exe	92
PID 4484 wrote to memory of 2688	4484	JaffaCakes118_700893c0f8426f83c2731df16e089f2f463eaf91c4cd07f2feddf826a8581d10.exe	92
PID 4484 wrote to memory of 2444	4484	JaffaCakes118_700893c0f8426f83c2731df16e089f2f463eaf91c4cd07f2feddf826a8581d10.exe	95
PID 4484 wrote to memory of 2444	4484	JaffaCakes118_700893c0f8426f83c2731df16e089f2f463eaf91c4cd07f2feddf826a8581d10.exe	95
PID 4484 wrote to memory of 2444	4484	JaffaCakes118_700893c0f8426f83c2731df16e089f2f463eaf91c4cd07f2feddf826a8581d10.exe	95
PID 1408 wrote to memory of 4752	1408	iettyflc.exe	101
PID 1408 wrote to memory of 4752	1408	iettyflc.exe	101
PID 1408 wrote to memory of 4752	1408	iettyflc.exe	101
PID 1408 wrote to memory of 4752	1408	iettyflc.exe	101
PID 1408 wrote to memory of 4752	1408	iettyflc.exe	101

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_700893c0f8426f83c2731df16e089f2f463eaf91c4cd07f2feddf826a8581d10.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_700893c0f8426f83c2731df16e089f2f463eaf91c4cd07f2feddf826a8581d10.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4484
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\hxilqkkx\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1332
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\iettyflc.exe" C:\Windows\SysWOW64\hxilqkkx\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2952
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create hxilqkkx binPath= "C:\Windows\SysWOW64\hxilqkkx\iettyflc.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_700893c0f8426f83c2731df16e089f2f463eaf91c4cd07f2feddf826a8581d10.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4820
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description hxilqkkx "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1688
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start hxilqkkx
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2688
- C:\Windows\SysWOW64\netsh.exe
  "C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul
  2⤵
  - Modifies Windows Firewall
  - Event Triggered Execution: Netsh Helper DLL
  - System Location Discovery: System Language Discovery
  PID:2444
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4484 -s 684
  2⤵
  - Program crash
  PID:632

C:\Windows\SysWOW64\hxilqkkx\iettyflc.exe
C:\Windows\SysWOW64\hxilqkkx\iettyflc.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_700893c0f8426f83c2731df16e089f2f463eaf91c4cd07f2feddf826a8581d10.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1408
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4752
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1408 -s 516
  2⤵
  - Program crash
  PID:4112

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 4484 -ip 4484
1⤵
PID:3416

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 1408 -ip 1408
1⤵
PID:3944

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\iettyflc.exe

Filesize
12.9MB

MD5
aeeecc9e463e8951b701ac0027fa365e

SHA1
aeda62e1d98e88fad4f839377036e8205ad6728c

SHA256
f9484f473dd02dbc5cce26a761dc3ec10d0d1839fdf16a07983ebfe6062b5c6a

SHA512
c6322fe3c95797459782b5744de5134f6f85df9929edd13032cbc7c1cbbae01f3aacba30d1df33bc24d26abff65ec0b39351e8e205fbe9bd33e63e45a5f227e1

Download Submit
memory/1408-15-0x0000000000400000-0x0000000002B4B000-memory.dmp

Filesize
39.3MB

Download
memory/4484-1-0x0000000002D40000-0x0000000002E40000-memory.dmp

Filesize
1024KB

Download
memory/4484-2-0x0000000002CB0000-0x0000000002CC3000-memory.dmp

Filesize
76KB

Download
memory/4484-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4484-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4484-8-0x0000000002CB0000-0x0000000002CC3000-memory.dmp

Filesize
76KB

Download
memory/4484-7-0x0000000000400000-0x0000000002B4B000-memory.dmp

Filesize
39.3MB

Download
memory/4752-11-0x0000000000A90000-0x0000000000AA5000-memory.dmp

Filesize
84KB

Download
memory/4752-13-0x0000000000A90000-0x0000000000AA5000-memory.dmp

Filesize
84KB

Download
memory/4752-14-0x0000000000A90000-0x0000000000AA5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads