tofsee | 641305c8da92fc65607cb1fa662e20e76051d4e5718b951dac76fe9f1952fd64

General

Target

JaffaCakes118_641305c8da92fc65607cb1fa662e20e76051d4e5718b951dac76fe9f1952fd64.exe
Size

327KB
MD5

183b564ef508bf5b3575f43329997ce9
SHA1

5d0daf1744b511f140f8f90c7b60703f4e8ed8e2
SHA256

641305c8da92fc65607cb1fa662e20e76051d4e5718b951dac76fe9f1952fd64
SHA512

4a181d1b55956cf24330b634481e15cdff6c9257ca977c2ee98cb1c47dad2f8e9eed7f1dcac7a97bc321a3fdc0cdefacccffc590588516bdc681444da4e58c9c
SSDEEP

6144:wA6pBYkTkm2Uaq3eA+OuVRok7hjl1vcOa0:GpRTkmBaSeA+poyp7

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
1088	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\mornomrd\ImagePath = "C:\\Windows\\SysWOW64\\mornomrd\\vnfmlcnu.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_641305c8da92fc65607cb1fa662e20e76051d4e5718b951dac76fe9f1952fd64.exe

Deletes itself 1 IoCs

pid	Process
5040	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3660	vnfmlcnu.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3660 set thread context of 5040	3660	vnfmlcnu.exe	106

Launches sc.exe 3 IoCs

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

pid	Process
1708	sc.exe
5108	sc.exe
3184	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 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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2988	2856	WerFault.exe	82
3716	3660	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	vnfmlcnu.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_641305c8da92fc65607cb1fa662e20e76051d4e5718b951dac76fe9f1952fd64.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2856 wrote to memory of 544	2856	JaffaCakes118_641305c8da92fc65607cb1fa662e20e76051d4e5718b951dac76fe9f1952fd64.exe	83
PID 2856 wrote to memory of 544	2856	JaffaCakes118_641305c8da92fc65607cb1fa662e20e76051d4e5718b951dac76fe9f1952fd64.exe	83
PID 2856 wrote to memory of 544	2856	JaffaCakes118_641305c8da92fc65607cb1fa662e20e76051d4e5718b951dac76fe9f1952fd64.exe	83
PID 2856 wrote to memory of 2156	2856	JaffaCakes118_641305c8da92fc65607cb1fa662e20e76051d4e5718b951dac76fe9f1952fd64.exe	86
PID 2856 wrote to memory of 2156	2856	JaffaCakes118_641305c8da92fc65607cb1fa662e20e76051d4e5718b951dac76fe9f1952fd64.exe	86
PID 2856 wrote to memory of 2156	2856	JaffaCakes118_641305c8da92fc65607cb1fa662e20e76051d4e5718b951dac76fe9f1952fd64.exe	86
PID 2856 wrote to memory of 1708	2856	JaffaCakes118_641305c8da92fc65607cb1fa662e20e76051d4e5718b951dac76fe9f1952fd64.exe	88
PID 2856 wrote to memory of 1708	2856	JaffaCakes118_641305c8da92fc65607cb1fa662e20e76051d4e5718b951dac76fe9f1952fd64.exe	88
PID 2856 wrote to memory of 1708	2856	JaffaCakes118_641305c8da92fc65607cb1fa662e20e76051d4e5718b951dac76fe9f1952fd64.exe	88
PID 2856 wrote to memory of 5108	2856	JaffaCakes118_641305c8da92fc65607cb1fa662e20e76051d4e5718b951dac76fe9f1952fd64.exe	90
PID 2856 wrote to memory of 5108	2856	JaffaCakes118_641305c8da92fc65607cb1fa662e20e76051d4e5718b951dac76fe9f1952fd64.exe	90
PID 2856 wrote to memory of 5108	2856	JaffaCakes118_641305c8da92fc65607cb1fa662e20e76051d4e5718b951dac76fe9f1952fd64.exe	90
PID 2856 wrote to memory of 3184	2856	JaffaCakes118_641305c8da92fc65607cb1fa662e20e76051d4e5718b951dac76fe9f1952fd64.exe	92
PID 2856 wrote to memory of 3184	2856	JaffaCakes118_641305c8da92fc65607cb1fa662e20e76051d4e5718b951dac76fe9f1952fd64.exe	92
PID 2856 wrote to memory of 3184	2856	JaffaCakes118_641305c8da92fc65607cb1fa662e20e76051d4e5718b951dac76fe9f1952fd64.exe	92
PID 2856 wrote to memory of 1088	2856	JaffaCakes118_641305c8da92fc65607cb1fa662e20e76051d4e5718b951dac76fe9f1952fd64.exe	95
PID 2856 wrote to memory of 1088	2856	JaffaCakes118_641305c8da92fc65607cb1fa662e20e76051d4e5718b951dac76fe9f1952fd64.exe	95
PID 2856 wrote to memory of 1088	2856	JaffaCakes118_641305c8da92fc65607cb1fa662e20e76051d4e5718b951dac76fe9f1952fd64.exe	95
PID 3660 wrote to memory of 5040	3660	vnfmlcnu.exe	106
PID 3660 wrote to memory of 5040	3660	vnfmlcnu.exe	106
PID 3660 wrote to memory of 5040	3660	vnfmlcnu.exe	106
PID 3660 wrote to memory of 5040	3660	vnfmlcnu.exe	106
PID 3660 wrote to memory of 5040	3660	vnfmlcnu.exe	106

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_641305c8da92fc65607cb1fa662e20e76051d4e5718b951dac76fe9f1952fd64.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_641305c8da92fc65607cb1fa662e20e76051d4e5718b951dac76fe9f1952fd64.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2856
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\mornomrd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:544
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\vnfmlcnu.exe" C:\Windows\SysWOW64\mornomrd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2156
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create mornomrd binPath= "C:\Windows\SysWOW64\mornomrd\vnfmlcnu.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_641305c8da92fc65607cb1fa662e20e76051d4e5718b951dac76fe9f1952fd64.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1708
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description mornomrd "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5108
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start mornomrd
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3184
- 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:1088
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2856 -s 1036
  2⤵
  - Program crash
  PID:2988

C:\Windows\SysWOW64\mornomrd\vnfmlcnu.exe
C:\Windows\SysWOW64\mornomrd\vnfmlcnu.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_641305c8da92fc65607cb1fa662e20e76051d4e5718b951dac76fe9f1952fd64.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3660
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:5040
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3660 -s 532
  2⤵
  - Program crash
  PID:3716

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 2856 -ip 2856
1⤵
PID:1516

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 3660 -ip 3660
1⤵
PID:3736

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\vnfmlcnu.exe

Filesize
14.5MB

MD5
5657666491fb4d1dcb3bb9cf2e040f7d

SHA1
d7f73429f5503b40ee78ca2c489f484dcddeef4f

SHA256
ed24aa4eb6e6c0d93f0bc59a4ca30a4ea09b06cc2bd5cd8ff37ae493520f9f7f

SHA512
31b620f54491e3265b96afcd46e9b9842910659c0e8e8a5e3e3a4fde9e30ad81456ae72f15510ac101102e33877fe87d92406f4e297cd5112c88f646f2fb5e1c

Download Submit
memory/2856-1-0x00000000023B0000-0x00000000024B0000-memory.dmp

Filesize
1024KB

Download
memory/2856-2-0x00000000040F0000-0x0000000004103000-memory.dmp

Filesize
76KB

Download
memory/2856-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2856-8-0x00000000040F0000-0x0000000004103000-memory.dmp

Filesize
76KB

Download
memory/2856-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2856-7-0x0000000000400000-0x00000000023A9000-memory.dmp

Filesize
31.7MB

Download
memory/3660-15-0x0000000000400000-0x00000000023A9000-memory.dmp

Filesize
31.7MB

Download
memory/5040-11-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/5040-13-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/5040-14-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads