tofsee | e63d10ca0b11dcead0cbe59e6ffc0f697045cc855ccdfed26e09cf8fd31bea44

General

Target

JaffaCakes118_e63d10ca0b11dcead0cbe59e6ffc0f697045cc855ccdfed26e09cf8fd31bea44.exe
Size

187KB
MD5

1f11ea2297bb82debf1add03f5efcc09
SHA1

42b2004c178bf4d019d2042eacaf72071e685594
SHA256

e63d10ca0b11dcead0cbe59e6ffc0f697045cc855ccdfed26e09cf8fd31bea44
SHA512

909d8bd8a7981c5197b417b0b4c283e92b32efa34eb22c1bd328f1a9bf4bf2b9b0c5fa896eb3e55229b796e1d23744e2ebc2551f6ddc4e6a6720d44b99240e70
SSDEEP

3072:EC7e/jDuFi2WiN38n69XJz7AdTiraSuzIFzmpZa9uD6Vdyhkk:ELLDuFi2WiN3BrXmwVf

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
2684	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\gxrocsk\ImagePath = "C:\\Windows\\SysWOW64\\gxrocsk\\bgqguz.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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	JaffaCakes118_e63d10ca0b11dcead0cbe59e6ffc0f697045cc855ccdfed26e09cf8fd31bea44.exe

Deletes itself 1 IoCs

pid	Process
2328	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2044	bgqguz.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2044 set thread context of 2328	2044	bgqguz.exe	95

Launches sc.exe 3 IoCs

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

pid	Process
3636	sc.exe
4832	sc.exe
3656	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

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_e63d10ca0b11dcead0cbe59e6ffc0f697045cc855ccdfed26e09cf8fd31bea44.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	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	bgqguz.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4560 wrote to memory of 3436	4560	JaffaCakes118_e63d10ca0b11dcead0cbe59e6ffc0f697045cc855ccdfed26e09cf8fd31bea44.exe	82
PID 4560 wrote to memory of 3436	4560	JaffaCakes118_e63d10ca0b11dcead0cbe59e6ffc0f697045cc855ccdfed26e09cf8fd31bea44.exe	82
PID 4560 wrote to memory of 3436	4560	JaffaCakes118_e63d10ca0b11dcead0cbe59e6ffc0f697045cc855ccdfed26e09cf8fd31bea44.exe	82
PID 4560 wrote to memory of 4980	4560	JaffaCakes118_e63d10ca0b11dcead0cbe59e6ffc0f697045cc855ccdfed26e09cf8fd31bea44.exe	84
PID 4560 wrote to memory of 4980	4560	JaffaCakes118_e63d10ca0b11dcead0cbe59e6ffc0f697045cc855ccdfed26e09cf8fd31bea44.exe	84
PID 4560 wrote to memory of 4980	4560	JaffaCakes118_e63d10ca0b11dcead0cbe59e6ffc0f697045cc855ccdfed26e09cf8fd31bea44.exe	84
PID 4560 wrote to memory of 4832	4560	JaffaCakes118_e63d10ca0b11dcead0cbe59e6ffc0f697045cc855ccdfed26e09cf8fd31bea44.exe	86
PID 4560 wrote to memory of 4832	4560	JaffaCakes118_e63d10ca0b11dcead0cbe59e6ffc0f697045cc855ccdfed26e09cf8fd31bea44.exe	86
PID 4560 wrote to memory of 4832	4560	JaffaCakes118_e63d10ca0b11dcead0cbe59e6ffc0f697045cc855ccdfed26e09cf8fd31bea44.exe	86
PID 4560 wrote to memory of 3656	4560	JaffaCakes118_e63d10ca0b11dcead0cbe59e6ffc0f697045cc855ccdfed26e09cf8fd31bea44.exe	88
PID 4560 wrote to memory of 3656	4560	JaffaCakes118_e63d10ca0b11dcead0cbe59e6ffc0f697045cc855ccdfed26e09cf8fd31bea44.exe	88
PID 4560 wrote to memory of 3656	4560	JaffaCakes118_e63d10ca0b11dcead0cbe59e6ffc0f697045cc855ccdfed26e09cf8fd31bea44.exe	88
PID 4560 wrote to memory of 3636	4560	JaffaCakes118_e63d10ca0b11dcead0cbe59e6ffc0f697045cc855ccdfed26e09cf8fd31bea44.exe	90
PID 4560 wrote to memory of 3636	4560	JaffaCakes118_e63d10ca0b11dcead0cbe59e6ffc0f697045cc855ccdfed26e09cf8fd31bea44.exe	90
PID 4560 wrote to memory of 3636	4560	JaffaCakes118_e63d10ca0b11dcead0cbe59e6ffc0f697045cc855ccdfed26e09cf8fd31bea44.exe	90
PID 4560 wrote to memory of 2684	4560	JaffaCakes118_e63d10ca0b11dcead0cbe59e6ffc0f697045cc855ccdfed26e09cf8fd31bea44.exe	93
PID 4560 wrote to memory of 2684	4560	JaffaCakes118_e63d10ca0b11dcead0cbe59e6ffc0f697045cc855ccdfed26e09cf8fd31bea44.exe	93
PID 4560 wrote to memory of 2684	4560	JaffaCakes118_e63d10ca0b11dcead0cbe59e6ffc0f697045cc855ccdfed26e09cf8fd31bea44.exe	93
PID 2044 wrote to memory of 2328	2044	bgqguz.exe	95
PID 2044 wrote to memory of 2328	2044	bgqguz.exe	95
PID 2044 wrote to memory of 2328	2044	bgqguz.exe	95
PID 2044 wrote to memory of 2328	2044	bgqguz.exe	95
PID 2044 wrote to memory of 2328	2044	bgqguz.exe	95

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e63d10ca0b11dcead0cbe59e6ffc0f697045cc855ccdfed26e09cf8fd31bea44.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e63d10ca0b11dcead0cbe59e6ffc0f697045cc855ccdfed26e09cf8fd31bea44.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4560
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\gxrocsk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3436
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\bgqguz.exe" C:\Windows\SysWOW64\gxrocsk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4980
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create gxrocsk binPath= "C:\Windows\SysWOW64\gxrocsk\bgqguz.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e63d10ca0b11dcead0cbe59e6ffc0f697045cc855ccdfed26e09cf8fd31bea44.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4832
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description gxrocsk "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3656
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start gxrocsk
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3636
- 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:2684

C:\Windows\SysWOW64\gxrocsk\bgqguz.exe
C:\Windows\SysWOW64\gxrocsk\bgqguz.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e63d10ca0b11dcead0cbe59e6ffc0f697045cc855ccdfed26e09cf8fd31bea44.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2044
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2328

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\bgqguz.exe

Filesize
10.4MB

MD5
5f78d8dc5c7773166e53d6dd02ea6466

SHA1
78e44c14d7317710d05bf63dd86bd5b8fff4d8cb

SHA256
cab69ad595abab2c278c8fc6107618f98a2eb5f60f47379630c33932dc7227a9

SHA512
12efa35df5ab6330ca62f1f8f8638fc8c47c92596018e47c46b36eeea562519920cbcd7417eb360dd1da21a01b23ccaf6edae56db58b49a40cff6cf75d2b70a9

Download Submit
memory/2044-12-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2044-10-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2044-11-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2044-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2328-15-0x0000000001280000-0x0000000001295000-memory.dmp

Filesize
84KB

Download
memory/2328-13-0x0000000001280000-0x0000000001295000-memory.dmp

Filesize
84KB

Download
memory/2328-18-0x0000000001280000-0x0000000001295000-memory.dmp

Filesize
84KB

Download
memory/4560-7-0x00000000005D0000-0x00000000005DD000-memory.dmp

Filesize
52KB

Download
memory/4560-6-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4560-8-0x00000000005E0000-0x00000000005F3000-memory.dmp

Filesize
76KB

Download
memory/4560-0-0x00000000005D0000-0x00000000005DD000-memory.dmp

Filesize
52KB

Download
memory/4560-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4560-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4560-1-0x00000000005E0000-0x00000000005F3000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads