tofsee | 9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961c

General

Target

JaffaCakes118_9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961c.exe
Size

186KB
MD5

166c6ac61a149f3d397c5b54cdf611b0
SHA1

51ac25392072ea5bd9af9d6d227c0c13a5c7cfdc
SHA256

9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961c
SHA512

06d93630a7cf01e119c2cecf9c28de3f8e88b55f0afde93f2d6b8c536efd1ada9e9678aac34cb20c75911a3254ca3de174420a9ff45dbf2b4192c17d2b6ccfba
SSDEEP

3072:L7ojA4DTPi7C4QCDla6Iv0vdJxfez43Valiy1wC3pZa9uD6Vdyhk9:+A4DTPi7C4QBVviXVIQC3wVf

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
2448	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\klhhygly\ImagePath = "C:\\Windows\\SysWOW64\\klhhygly\\nfxedufm.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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	JaffaCakes118_9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961c.exe

Deletes itself 1 IoCs

pid	Process
4076	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1908	nfxedufm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1908 set thread context of 4076	1908	nfxedufm.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
4424	sc.exe
400	sc.exe
4044	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
4300	1384	WerFault.exe	82
4628	1908	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	JaffaCakes118_9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nfxedufm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1384 wrote to memory of 3992	1384	JaffaCakes118_9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961c.exe	83
PID 1384 wrote to memory of 3992	1384	JaffaCakes118_9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961c.exe	83
PID 1384 wrote to memory of 3992	1384	JaffaCakes118_9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961c.exe	83
PID 1384 wrote to memory of 3576	1384	JaffaCakes118_9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961c.exe	85
PID 1384 wrote to memory of 3576	1384	JaffaCakes118_9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961c.exe	85
PID 1384 wrote to memory of 3576	1384	JaffaCakes118_9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961c.exe	85
PID 1384 wrote to memory of 4424	1384	JaffaCakes118_9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961c.exe	87
PID 1384 wrote to memory of 4424	1384	JaffaCakes118_9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961c.exe	87
PID 1384 wrote to memory of 4424	1384	JaffaCakes118_9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961c.exe	87
PID 1384 wrote to memory of 400	1384	JaffaCakes118_9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961c.exe	89
PID 1384 wrote to memory of 400	1384	JaffaCakes118_9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961c.exe	89
PID 1384 wrote to memory of 400	1384	JaffaCakes118_9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961c.exe	89
PID 1384 wrote to memory of 4044	1384	JaffaCakes118_9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961c.exe	92
PID 1384 wrote to memory of 4044	1384	JaffaCakes118_9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961c.exe	92
PID 1384 wrote to memory of 4044	1384	JaffaCakes118_9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961c.exe	92
PID 1384 wrote to memory of 2448	1384	JaffaCakes118_9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961c.exe	95
PID 1384 wrote to memory of 2448	1384	JaffaCakes118_9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961c.exe	95
PID 1384 wrote to memory of 2448	1384	JaffaCakes118_9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961c.exe	95
PID 1908 wrote to memory of 4076	1908	nfxedufm.exe	101
PID 1908 wrote to memory of 4076	1908	nfxedufm.exe	101
PID 1908 wrote to memory of 4076	1908	nfxedufm.exe	101
PID 1908 wrote to memory of 4076	1908	nfxedufm.exe	101
PID 1908 wrote to memory of 4076	1908	nfxedufm.exe	101

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961c.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961c.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1384
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\klhhygly\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3992
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\nfxedufm.exe" C:\Windows\SysWOW64\klhhygly\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3576
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create klhhygly binPath= "C:\Windows\SysWOW64\klhhygly\nfxedufm.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961c.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4424
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description klhhygly "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:400
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start klhhygly
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4044
- 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:2448
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1384 -s 1252
  2⤵
  - Program crash
  PID:4300

C:\Windows\SysWOW64\klhhygly\nfxedufm.exe
C:\Windows\SysWOW64\klhhygly\nfxedufm.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961c.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1908
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4076
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1908 -s 528
  2⤵
  - Program crash
  PID:4628

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1384 -ip 1384
1⤵
PID:1380

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 1908 -ip 1908
1⤵
PID:4100

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\nfxedufm.exe

Filesize
13.1MB

MD5
5220abe7c51822e4ce7e0d7e2cde1717

SHA1
0ba0c5b07996b96f0bbae15e8eb997c7b03bf66d

SHA256
7a9a41fc4e7f560afa96cd3d561cef2e42297b300f83099fb7dacf5f23c6b73c

SHA512
94367a10ad80caa05da2dec17e3aeeb0dad5f3e37687ddde3b9264fef5db543f27daa96fb26e3e6f9128c3ab3ebb2877fb582e1d279374678b4cc07f38b120b4

Download Submit
memory/1384-9-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1384-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1384-1-0x0000000002190000-0x00000000021A3000-memory.dmp

Filesize
76KB

Download
memory/1384-0-0x0000000000560000-0x000000000056D000-memory.dmp

Filesize
52KB

Download
memory/1384-12-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1384-11-0x0000000002190000-0x00000000021A3000-memory.dmp

Filesize
76KB

Download
memory/1384-10-0x0000000000560000-0x000000000056D000-memory.dmp

Filesize
52KB

Download
memory/1908-6-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1908-14-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4076-7-0x0000000000750000-0x0000000000765000-memory.dmp

Filesize
84KB

Download
memory/4076-15-0x0000000000750000-0x0000000000765000-memory.dmp

Filesize
84KB

Download
memory/4076-16-0x0000000000750000-0x0000000000765000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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