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
3648	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\wkgynwmv\ImagePath = "C:\\Windows\\SysWOW64\\wkgynwmv\\ixcdxfib.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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	JaffaCakes118_e63d10ca0b11dcead0cbe59e6ffc0f697045cc855ccdfed26e09cf8fd31bea44.exe

Deletes itself 1 IoCs

pid	Process
3560	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1352	ixcdxfib.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1352 set thread context of 3560	1352	ixcdxfib.exe	97

Launches sc.exe 3 IoCs

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

pid	Process
2340	sc.exe
888	sc.exe
348	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	cmd.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	ixcdxfib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_e63d10ca0b11dcead0cbe59e6ffc0f697045cc855ccdfed26e09cf8fd31bea44.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 2104 wrote to memory of 4920	2104	JaffaCakes118_e63d10ca0b11dcead0cbe59e6ffc0f697045cc855ccdfed26e09cf8fd31bea44.exe	83
PID 2104 wrote to memory of 4920	2104	JaffaCakes118_e63d10ca0b11dcead0cbe59e6ffc0f697045cc855ccdfed26e09cf8fd31bea44.exe	83
PID 2104 wrote to memory of 4920	2104	JaffaCakes118_e63d10ca0b11dcead0cbe59e6ffc0f697045cc855ccdfed26e09cf8fd31bea44.exe	83
PID 2104 wrote to memory of 1232	2104	JaffaCakes118_e63d10ca0b11dcead0cbe59e6ffc0f697045cc855ccdfed26e09cf8fd31bea44.exe	85
PID 2104 wrote to memory of 1232	2104	JaffaCakes118_e63d10ca0b11dcead0cbe59e6ffc0f697045cc855ccdfed26e09cf8fd31bea44.exe	85
PID 2104 wrote to memory of 1232	2104	JaffaCakes118_e63d10ca0b11dcead0cbe59e6ffc0f697045cc855ccdfed26e09cf8fd31bea44.exe	85
PID 2104 wrote to memory of 2340	2104	JaffaCakes118_e63d10ca0b11dcead0cbe59e6ffc0f697045cc855ccdfed26e09cf8fd31bea44.exe	87
PID 2104 wrote to memory of 2340	2104	JaffaCakes118_e63d10ca0b11dcead0cbe59e6ffc0f697045cc855ccdfed26e09cf8fd31bea44.exe	87
PID 2104 wrote to memory of 2340	2104	JaffaCakes118_e63d10ca0b11dcead0cbe59e6ffc0f697045cc855ccdfed26e09cf8fd31bea44.exe	87
PID 2104 wrote to memory of 888	2104	JaffaCakes118_e63d10ca0b11dcead0cbe59e6ffc0f697045cc855ccdfed26e09cf8fd31bea44.exe	89
PID 2104 wrote to memory of 888	2104	JaffaCakes118_e63d10ca0b11dcead0cbe59e6ffc0f697045cc855ccdfed26e09cf8fd31bea44.exe	89
PID 2104 wrote to memory of 888	2104	JaffaCakes118_e63d10ca0b11dcead0cbe59e6ffc0f697045cc855ccdfed26e09cf8fd31bea44.exe	89
PID 2104 wrote to memory of 348	2104	JaffaCakes118_e63d10ca0b11dcead0cbe59e6ffc0f697045cc855ccdfed26e09cf8fd31bea44.exe	92
PID 2104 wrote to memory of 348	2104	JaffaCakes118_e63d10ca0b11dcead0cbe59e6ffc0f697045cc855ccdfed26e09cf8fd31bea44.exe	92
PID 2104 wrote to memory of 348	2104	JaffaCakes118_e63d10ca0b11dcead0cbe59e6ffc0f697045cc855ccdfed26e09cf8fd31bea44.exe	92
PID 2104 wrote to memory of 3648	2104	JaffaCakes118_e63d10ca0b11dcead0cbe59e6ffc0f697045cc855ccdfed26e09cf8fd31bea44.exe	95
PID 2104 wrote to memory of 3648	2104	JaffaCakes118_e63d10ca0b11dcead0cbe59e6ffc0f697045cc855ccdfed26e09cf8fd31bea44.exe	95
PID 2104 wrote to memory of 3648	2104	JaffaCakes118_e63d10ca0b11dcead0cbe59e6ffc0f697045cc855ccdfed26e09cf8fd31bea44.exe	95
PID 1352 wrote to memory of 3560	1352	ixcdxfib.exe	97
PID 1352 wrote to memory of 3560	1352	ixcdxfib.exe	97
PID 1352 wrote to memory of 3560	1352	ixcdxfib.exe	97
PID 1352 wrote to memory of 3560	1352	ixcdxfib.exe	97
PID 1352 wrote to memory of 3560	1352	ixcdxfib.exe	97

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:2104
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wkgynwmv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4920
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ixcdxfib.exe" C:\Windows\SysWOW64\wkgynwmv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1232
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create wkgynwmv binPath= "C:\Windows\SysWOW64\wkgynwmv\ixcdxfib.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:2340
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description wkgynwmv "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:888
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start wkgynwmv
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:348
- 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:3648

C:\Windows\SysWOW64\wkgynwmv\ixcdxfib.exe
C:\Windows\SysWOW64\wkgynwmv\ixcdxfib.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:1352
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3560

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\ixcdxfib.exe

Filesize
10.9MB

MD5
999e5cbabdbc64e2b0586ff15daf2f80

SHA1
42707493eb74bad57c47e05844b34438f4c9cf8f

SHA256
4283e26ec5a8855785bfccb30aa2d0efd2ba8034f31e519988dcde6771eaeb30

SHA512
a4fa488a6dbd47a17890426a0b81c8140090dfcbd91e3ea96489b5494d03f5da692669c2c196d25ad02d71367b35581e5ac76846a08120edd26ce9173c28a980

Download Submit
memory/1352-10-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1352-11-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1352-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2104-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2104-1-0x00000000006B0000-0x00000000006C3000-memory.dmp

Filesize
76KB

Download
memory/2104-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2104-8-0x00000000006B0000-0x00000000006C3000-memory.dmp

Filesize
76KB

Download
memory/2104-7-0x00000000006A0000-0x00000000006AD000-memory.dmp

Filesize
52KB

Download
memory/2104-6-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2104-0-0x00000000006A0000-0x00000000006AD000-memory.dmp

Filesize
52KB

Download
memory/3560-12-0x0000000001250000-0x0000000001265000-memory.dmp

Filesize
84KB

Download
memory/3560-15-0x0000000001250000-0x0000000001265000-memory.dmp

Filesize
84KB

Download
memory/3560-17-0x0000000001250000-0x0000000001265000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads