tofsee | 711f92fa9ac41fc35df5af56e8b669cc59ab52e52e60d2458b303d258bac29ae

General

Target

JaffaCakes118_711f92fa9ac41fc35df5af56e8b669cc59ab52e52e60d2458b303d258bac29ae.exe
Size

328KB
MD5

0011b607f6708b1c582cfd6775142bc1
SHA1

96fbcf5c5316e23f258513c1dd4486e0cb9aca5d
SHA256

711f92fa9ac41fc35df5af56e8b669cc59ab52e52e60d2458b303d258bac29ae
SHA512

0afead70fa35124ca60f71961df077948bcead68ab101042934695726cffe5bdd85fd3a4493f953496747a17f6635aa956a22ac9452f49e772599303e2e2214d
SSDEEP

6144:os0VP7IpmXLkbvHlO3x1lDKIFkoZLlSpArU:ofbWvQ3x1ltFdZE

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
3652	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\zjwztmcp\ImagePath = "C:\\Windows\\SysWOW64\\zjwztmcp\\jydeygjc.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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	JaffaCakes118_711f92fa9ac41fc35df5af56e8b669cc59ab52e52e60d2458b303d258bac29ae.exe

Deletes itself 1 IoCs

pid	Process
708	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3848	jydeygjc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3848 set thread context of 708	3848	jydeygjc.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
4976	sc.exe
4684	sc.exe
2824	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
3128	2820	WerFault.exe	81
4996	3848	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_711f92fa9ac41fc35df5af56e8b669cc59ab52e52e60d2458b303d258bac29ae.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	jydeygjc.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2820 wrote to memory of 4032	2820	JaffaCakes118_711f92fa9ac41fc35df5af56e8b669cc59ab52e52e60d2458b303d258bac29ae.exe	82
PID 2820 wrote to memory of 4032	2820	JaffaCakes118_711f92fa9ac41fc35df5af56e8b669cc59ab52e52e60d2458b303d258bac29ae.exe	82
PID 2820 wrote to memory of 4032	2820	JaffaCakes118_711f92fa9ac41fc35df5af56e8b669cc59ab52e52e60d2458b303d258bac29ae.exe	82
PID 2820 wrote to memory of 4336	2820	JaffaCakes118_711f92fa9ac41fc35df5af56e8b669cc59ab52e52e60d2458b303d258bac29ae.exe	84
PID 2820 wrote to memory of 4336	2820	JaffaCakes118_711f92fa9ac41fc35df5af56e8b669cc59ab52e52e60d2458b303d258bac29ae.exe	84
PID 2820 wrote to memory of 4336	2820	JaffaCakes118_711f92fa9ac41fc35df5af56e8b669cc59ab52e52e60d2458b303d258bac29ae.exe	84
PID 2820 wrote to memory of 4684	2820	JaffaCakes118_711f92fa9ac41fc35df5af56e8b669cc59ab52e52e60d2458b303d258bac29ae.exe	86
PID 2820 wrote to memory of 4684	2820	JaffaCakes118_711f92fa9ac41fc35df5af56e8b669cc59ab52e52e60d2458b303d258bac29ae.exe	86
PID 2820 wrote to memory of 4684	2820	JaffaCakes118_711f92fa9ac41fc35df5af56e8b669cc59ab52e52e60d2458b303d258bac29ae.exe	86
PID 2820 wrote to memory of 2824	2820	JaffaCakes118_711f92fa9ac41fc35df5af56e8b669cc59ab52e52e60d2458b303d258bac29ae.exe	90
PID 2820 wrote to memory of 2824	2820	JaffaCakes118_711f92fa9ac41fc35df5af56e8b669cc59ab52e52e60d2458b303d258bac29ae.exe	90
PID 2820 wrote to memory of 2824	2820	JaffaCakes118_711f92fa9ac41fc35df5af56e8b669cc59ab52e52e60d2458b303d258bac29ae.exe	90
PID 2820 wrote to memory of 4976	2820	JaffaCakes118_711f92fa9ac41fc35df5af56e8b669cc59ab52e52e60d2458b303d258bac29ae.exe	92
PID 2820 wrote to memory of 4976	2820	JaffaCakes118_711f92fa9ac41fc35df5af56e8b669cc59ab52e52e60d2458b303d258bac29ae.exe	92
PID 2820 wrote to memory of 4976	2820	JaffaCakes118_711f92fa9ac41fc35df5af56e8b669cc59ab52e52e60d2458b303d258bac29ae.exe	92
PID 2820 wrote to memory of 3652	2820	JaffaCakes118_711f92fa9ac41fc35df5af56e8b669cc59ab52e52e60d2458b303d258bac29ae.exe	96
PID 2820 wrote to memory of 3652	2820	JaffaCakes118_711f92fa9ac41fc35df5af56e8b669cc59ab52e52e60d2458b303d258bac29ae.exe	96
PID 2820 wrote to memory of 3652	2820	JaffaCakes118_711f92fa9ac41fc35df5af56e8b669cc59ab52e52e60d2458b303d258bac29ae.exe	96
PID 3848 wrote to memory of 708	3848	jydeygjc.exe	102
PID 3848 wrote to memory of 708	3848	jydeygjc.exe	102
PID 3848 wrote to memory of 708	3848	jydeygjc.exe	102
PID 3848 wrote to memory of 708	3848	jydeygjc.exe	102
PID 3848 wrote to memory of 708	3848	jydeygjc.exe	102

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_711f92fa9ac41fc35df5af56e8b669cc59ab52e52e60d2458b303d258bac29ae.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_711f92fa9ac41fc35df5af56e8b669cc59ab52e52e60d2458b303d258bac29ae.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2820
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zjwztmcp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4032
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jydeygjc.exe" C:\Windows\SysWOW64\zjwztmcp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4336
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create zjwztmcp binPath= "C:\Windows\SysWOW64\zjwztmcp\jydeygjc.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_711f92fa9ac41fc35df5af56e8b669cc59ab52e52e60d2458b303d258bac29ae.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4684
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description zjwztmcp "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2824
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start zjwztmcp
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4976
- 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:3652
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2820 -s 804
  2⤵
  - Program crash
  PID:3128

C:\Windows\SysWOW64\zjwztmcp\jydeygjc.exe
C:\Windows\SysWOW64\zjwztmcp\jydeygjc.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_711f92fa9ac41fc35df5af56e8b669cc59ab52e52e60d2458b303d258bac29ae.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3848
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:708
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3848 -s 508
  2⤵
  - Program crash
  PID:4996

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2820 -ip 2820
1⤵
PID:3404

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 3848 -ip 3848
1⤵
PID:3844

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\jydeygjc.exe

Filesize
11.4MB

MD5
32391dae1d2c13cd08c9f3f38c351ec0

SHA1
fa94155b0da9a224cd1f9a2458ae5b8f801c6c0e

SHA256
f6d5bf7640056607650cf72953ee0dc9456fa14fd64cb4de68d03b0589ca94ec

SHA512
65b285fe9b1ba394a964921c458939be23e060fdf245bbf757962348ea529eef0c6cbdf238a55412c191a729e396a1e8e5fc134a13552dcb72ab3e2caedaaba5

Download Submit
memory/708-11-0x00000000012B0000-0x00000000012C5000-memory.dmp

Filesize
84KB

Download
memory/708-13-0x00000000012B0000-0x00000000012C5000-memory.dmp

Filesize
84KB

Download
memory/708-14-0x00000000012B0000-0x00000000012C5000-memory.dmp

Filesize
84KB

Download
memory/2820-1-0x0000000002A40000-0x0000000002B40000-memory.dmp

Filesize
1024KB

Download
memory/2820-2-0x0000000002A20000-0x0000000002A33000-memory.dmp

Filesize
76KB

Download
memory/2820-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2820-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2820-8-0x0000000002A20000-0x0000000002A33000-memory.dmp

Filesize
76KB

Download
memory/2820-7-0x0000000000400000-0x0000000002779000-memory.dmp

Filesize
35.5MB

Download
memory/3848-15-0x0000000000400000-0x0000000002779000-memory.dmp

Filesize
35.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads