tofsee | 50ba0727ff40b4e5d7e6199aff7bd359b5c85754b62ae2e8ffaacf5f74ea28f2

General

Target

47ab1157f295d159245789ec8e945d02_JaffaCakes118.exe
Size

11.2MB
MD5

47ab1157f295d159245789ec8e945d02
SHA1

5dd4dca6de70ba725c6628d84894b86419e3495b
SHA256

50ba0727ff40b4e5d7e6199aff7bd359b5c85754b62ae2e8ffaacf5f74ea28f2
SHA512

e402015c0bba748df4c7d6c40df080a1be30e670185fff4da2e73157b070d37a5bb9beed47172a5caefe44a2edffbc039e2146aa976562058e962e34833b6a2f
SSDEEP

24576:7erU5sWbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbn:7sW

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
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

Processes:

netsh.exe

pid process

2980 netsh.exe

pid	process
2980	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\zhnbrvfq\ImagePath = "C:\\Windows\\SysWOW64\\zhnbrvfq\\pygexzcc.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

Processes:

47ab1157f295d159245789ec8e945d02_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	47ab1157f295d159245789ec8e945d02_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

Processes:

pygexzcc.exe

pid process

1292 pygexzcc.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

pygexzcc.exe

description pid process target process

PID 1292 set thread context of 1216 1292 pygexzcc.exe svchost.exe
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.

Processes:

sc.exesc.exesc.exe

pid process

2168 sc.exe
1716 sc.exe
408 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
1292	pygexzcc.exe

description	pid	process	target process
PID 1292 set thread context of 1216	1292	pygexzcc.exe	svchost.exe

pid	process
2168	sc.exe
1716	sc.exe
408	sc.exe

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

Processes:

netsh.exe

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

Processes:

47ab1157f295d159245789ec8e945d02_JaffaCakes118.exesc.exesc.exenetsh.execmd.execmd.exesc.exepygexzcc.exesvchost.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	47ab1157f295d159245789ec8e945d02_JaffaCakes118.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
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	pygexzcc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

47ab1157f295d159245789ec8e945d02_JaffaCakes118.exepygexzcc.exe

description	pid	process	target process
PID 2092 wrote to memory of 1400	2092	47ab1157f295d159245789ec8e945d02_JaffaCakes118.exe	cmd.exe
PID 2092 wrote to memory of 1400	2092	47ab1157f295d159245789ec8e945d02_JaffaCakes118.exe	cmd.exe
PID 2092 wrote to memory of 1400	2092	47ab1157f295d159245789ec8e945d02_JaffaCakes118.exe	cmd.exe
PID 2092 wrote to memory of 3132	2092	47ab1157f295d159245789ec8e945d02_JaffaCakes118.exe	cmd.exe
PID 2092 wrote to memory of 3132	2092	47ab1157f295d159245789ec8e945d02_JaffaCakes118.exe	cmd.exe
PID 2092 wrote to memory of 3132	2092	47ab1157f295d159245789ec8e945d02_JaffaCakes118.exe	cmd.exe
PID 2092 wrote to memory of 2168	2092	47ab1157f295d159245789ec8e945d02_JaffaCakes118.exe	sc.exe
PID 2092 wrote to memory of 2168	2092	47ab1157f295d159245789ec8e945d02_JaffaCakes118.exe	sc.exe
PID 2092 wrote to memory of 2168	2092	47ab1157f295d159245789ec8e945d02_JaffaCakes118.exe	sc.exe
PID 2092 wrote to memory of 1716	2092	47ab1157f295d159245789ec8e945d02_JaffaCakes118.exe	sc.exe
PID 2092 wrote to memory of 1716	2092	47ab1157f295d159245789ec8e945d02_JaffaCakes118.exe	sc.exe
PID 2092 wrote to memory of 1716	2092	47ab1157f295d159245789ec8e945d02_JaffaCakes118.exe	sc.exe
PID 2092 wrote to memory of 408	2092	47ab1157f295d159245789ec8e945d02_JaffaCakes118.exe	sc.exe
PID 2092 wrote to memory of 408	2092	47ab1157f295d159245789ec8e945d02_JaffaCakes118.exe	sc.exe
PID 2092 wrote to memory of 408	2092	47ab1157f295d159245789ec8e945d02_JaffaCakes118.exe	sc.exe
PID 2092 wrote to memory of 2980	2092	47ab1157f295d159245789ec8e945d02_JaffaCakes118.exe	netsh.exe
PID 2092 wrote to memory of 2980	2092	47ab1157f295d159245789ec8e945d02_JaffaCakes118.exe	netsh.exe
PID 2092 wrote to memory of 2980	2092	47ab1157f295d159245789ec8e945d02_JaffaCakes118.exe	netsh.exe
PID 1292 wrote to memory of 1216	1292	pygexzcc.exe	svchost.exe
PID 1292 wrote to memory of 1216	1292	pygexzcc.exe	svchost.exe
PID 1292 wrote to memory of 1216	1292	pygexzcc.exe	svchost.exe
PID 1292 wrote to memory of 1216	1292	pygexzcc.exe	svchost.exe
PID 1292 wrote to memory of 1216	1292	pygexzcc.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\47ab1157f295d159245789ec8e945d02_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\47ab1157f295d159245789ec8e945d02_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2092
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zhnbrvfq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1400
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\pygexzcc.exe" C:\Windows\SysWOW64\zhnbrvfq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3132
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create zhnbrvfq binPath= "C:\Windows\SysWOW64\zhnbrvfq\pygexzcc.exe /d\"C:\Users\Admin\AppData\Local\Temp\47ab1157f295d159245789ec8e945d02_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2168
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description zhnbrvfq "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1716
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start zhnbrvfq
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:408
- 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:2980

C:\Windows\SysWOW64\zhnbrvfq\pygexzcc.exe
C:\Windows\SysWOW64\zhnbrvfq\pygexzcc.exe /d"C:\Users\Admin\AppData\Local\Temp\47ab1157f295d159245789ec8e945d02_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1292
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - System Location Discovery: System Language Discovery
  PID:1216

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\pygexzcc.exe

Filesize
11.6MB

MD5
7840ef7adeb76feae1b2d3890a023070

SHA1
bce92f28c129eb869b7440f6e41bd8de0284a7c4

SHA256
57df19b5e3ff36e1a1e8b313a2bc9ee3aadd7b6119b91ab948dca9f9468dda0a

SHA512
7ee8fb7ef57570b3f1d4c7d359e91fb3b58d824b0f7d5ceffb0f0a48aca8cb412bd6d88ece91b47d071e4b2a745a7351551e34a88daddc4052b641ef1ba06118

Download Submit
memory/1216-10-0x0000000000430000-0x0000000000445000-memory.dmp

Filesize
84KB

Download
memory/1216-18-0x0000000000430000-0x0000000000445000-memory.dmp

Filesize
84KB

Download
memory/1216-19-0x0000000000430000-0x0000000000445000-memory.dmp

Filesize
84KB

Download
memory/1292-8-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/1292-9-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/1292-16-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/2092-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2092-1-0x0000000000510000-0x0000000000610000-memory.dmp

Filesize
1024KB

Download
memory/2092-2-0x0000000002080000-0x0000000002093000-memory.dmp

Filesize
76KB

Download
memory/2092-12-0x0000000000510000-0x0000000000610000-memory.dmp

Filesize
1024KB

Download
memory/2092-13-0x0000000002080000-0x0000000002093000-memory.dmp

Filesize
76KB

Download
memory/2092-14-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2092-15-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads