tofsee | 4f28ab7614dc47f892c3d476cd540f4ee324f2efb32daee95bb428745e3b44de

General

Target

JaffaCakes118_4f28ab7614dc47f892c3d476cd540f4ee324f2efb32daee95bb428745e3b44de.exe
Size

306KB
MD5

50fadce28851aab25ceadb4d54453426
SHA1

4f7b3c131c44efc365029007a32bd470fb5348f1
SHA256

4f28ab7614dc47f892c3d476cd540f4ee324f2efb32daee95bb428745e3b44de
SHA512

d7d287e9bc89675695fcf8bf8e5c50e0261f1612df0d246232df1fb54a54b3e9a4460ba50cdf9ef592d5a84614042480e1efd19503422e3ffc143abf35f5a550
SSDEEP

6144:Uhd3vPPjpZIcFjIavb49lUW6WBVJFGMXBqJ:c3vPPjpZfFw9l2wVDGg

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

defeatwax.ru

refabyd.info

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
4752	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\pyrdltbn\ImagePath = "C:\\Windows\\SysWOW64\\pyrdltbn\\wdgeffvj.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_4f28ab7614dc47f892c3d476cd540f4ee324f2efb32daee95bb428745e3b44de.exe

Deletes itself 1 IoCs

pid	Process
320	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1888	wdgeffvj.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1888 set thread context of 320	1888	wdgeffvj.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
2792	sc.exe
1908	sc.exe
2264	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4408	2452	WerFault.exe	81
3480	1888	WerFault.exe	92

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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.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	wdgeffvj.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_4f28ab7614dc47f892c3d476cd540f4ee324f2efb32daee95bb428745e3b44de.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2452 wrote to memory of 5004	2452	JaffaCakes118_4f28ab7614dc47f892c3d476cd540f4ee324f2efb32daee95bb428745e3b44de.exe	82
PID 2452 wrote to memory of 5004	2452	JaffaCakes118_4f28ab7614dc47f892c3d476cd540f4ee324f2efb32daee95bb428745e3b44de.exe	82
PID 2452 wrote to memory of 5004	2452	JaffaCakes118_4f28ab7614dc47f892c3d476cd540f4ee324f2efb32daee95bb428745e3b44de.exe	82
PID 2452 wrote to memory of 2952	2452	JaffaCakes118_4f28ab7614dc47f892c3d476cd540f4ee324f2efb32daee95bb428745e3b44de.exe	84
PID 2452 wrote to memory of 2952	2452	JaffaCakes118_4f28ab7614dc47f892c3d476cd540f4ee324f2efb32daee95bb428745e3b44de.exe	84
PID 2452 wrote to memory of 2952	2452	JaffaCakes118_4f28ab7614dc47f892c3d476cd540f4ee324f2efb32daee95bb428745e3b44de.exe	84
PID 2452 wrote to memory of 2792	2452	JaffaCakes118_4f28ab7614dc47f892c3d476cd540f4ee324f2efb32daee95bb428745e3b44de.exe	86
PID 2452 wrote to memory of 2792	2452	JaffaCakes118_4f28ab7614dc47f892c3d476cd540f4ee324f2efb32daee95bb428745e3b44de.exe	86
PID 2452 wrote to memory of 2792	2452	JaffaCakes118_4f28ab7614dc47f892c3d476cd540f4ee324f2efb32daee95bb428745e3b44de.exe	86
PID 2452 wrote to memory of 1908	2452	JaffaCakes118_4f28ab7614dc47f892c3d476cd540f4ee324f2efb32daee95bb428745e3b44de.exe	88
PID 2452 wrote to memory of 1908	2452	JaffaCakes118_4f28ab7614dc47f892c3d476cd540f4ee324f2efb32daee95bb428745e3b44de.exe	88
PID 2452 wrote to memory of 1908	2452	JaffaCakes118_4f28ab7614dc47f892c3d476cd540f4ee324f2efb32daee95bb428745e3b44de.exe	88
PID 2452 wrote to memory of 2264	2452	JaffaCakes118_4f28ab7614dc47f892c3d476cd540f4ee324f2efb32daee95bb428745e3b44de.exe	90
PID 2452 wrote to memory of 2264	2452	JaffaCakes118_4f28ab7614dc47f892c3d476cd540f4ee324f2efb32daee95bb428745e3b44de.exe	90
PID 2452 wrote to memory of 2264	2452	JaffaCakes118_4f28ab7614dc47f892c3d476cd540f4ee324f2efb32daee95bb428745e3b44de.exe	90
PID 2452 wrote to memory of 4752	2452	JaffaCakes118_4f28ab7614dc47f892c3d476cd540f4ee324f2efb32daee95bb428745e3b44de.exe	93
PID 2452 wrote to memory of 4752	2452	JaffaCakes118_4f28ab7614dc47f892c3d476cd540f4ee324f2efb32daee95bb428745e3b44de.exe	93
PID 2452 wrote to memory of 4752	2452	JaffaCakes118_4f28ab7614dc47f892c3d476cd540f4ee324f2efb32daee95bb428745e3b44de.exe	93
PID 1888 wrote to memory of 320	1888	wdgeffvj.exe	98
PID 1888 wrote to memory of 320	1888	wdgeffvj.exe	98
PID 1888 wrote to memory of 320	1888	wdgeffvj.exe	98
PID 1888 wrote to memory of 320	1888	wdgeffvj.exe	98
PID 1888 wrote to memory of 320	1888	wdgeffvj.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4f28ab7614dc47f892c3d476cd540f4ee324f2efb32daee95bb428745e3b44de.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4f28ab7614dc47f892c3d476cd540f4ee324f2efb32daee95bb428745e3b44de.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2452
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\pyrdltbn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5004
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\wdgeffvj.exe" C:\Windows\SysWOW64\pyrdltbn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2952
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create pyrdltbn binPath= "C:\Windows\SysWOW64\pyrdltbn\wdgeffvj.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4f28ab7614dc47f892c3d476cd540f4ee324f2efb32daee95bb428745e3b44de.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2792
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description pyrdltbn "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1908
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start pyrdltbn
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2264
- 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:4752
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2452 -s 664
  2⤵
  - Program crash
  PID:4408

C:\Windows\SysWOW64\pyrdltbn\wdgeffvj.exe
C:\Windows\SysWOW64\pyrdltbn\wdgeffvj.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4f28ab7614dc47f892c3d476cd540f4ee324f2efb32daee95bb428745e3b44de.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1888
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:320
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1888 -s 560
  2⤵
  - Program crash
  PID:3480

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2452 -ip 2452
1⤵
PID:4532

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 1888 -ip 1888
1⤵
PID:2936

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\wdgeffvj.exe

Filesize
14.5MB

MD5
afac1e5f508a28fb11d7699c7c2d8247

SHA1
83b94d6806e428b18d6332aa3160dc926116d3d3

SHA256
5c95062911f1f7dc522be6bc0e537e6a5e3aa46141ff367b9454188032202bb0

SHA512
1cb08c215cde89de82b2cfc33864eda82e5106de49d0ea843bfb9a54fb52ee4ea65f61e25d8de15b95b38c07aff353689066a74e8e3bacc5a5edbd7db2474eac

Download Submit
memory/320-11-0x0000000000BD0000-0x0000000000BE5000-memory.dmp

Filesize
84KB

Download
memory/320-13-0x0000000000BD0000-0x0000000000BE5000-memory.dmp

Filesize
84KB

Download
memory/320-14-0x0000000000BD0000-0x0000000000BE5000-memory.dmp

Filesize
84KB

Download
memory/1888-15-0x0000000000400000-0x0000000002B94000-memory.dmp

Filesize
39.6MB

Download
memory/2452-1-0x0000000002E50000-0x0000000002F50000-memory.dmp

Filesize
1024KB

Download
memory/2452-2-0x0000000002DD0000-0x0000000002DE3000-memory.dmp

Filesize
76KB

Download
memory/2452-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2452-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2452-9-0x0000000002DD0000-0x0000000002DE3000-memory.dmp

Filesize
76KB

Download
memory/2452-8-0x0000000000400000-0x0000000002B94000-memory.dmp

Filesize
39.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads