tofsee | 4fed412becd301c9f805f9391c5c4d3c1c094516f5eb09ba82ea97e802759e78

General

Target

JaffaCakes118_0e8701d6ce1c4bcd1cf5be02393fd780.exe
Size

10.2MB
MD5

0e8701d6ce1c4bcd1cf5be02393fd780
SHA1

a4dcfd76ad6da9e6a4980e6970054490c95ed17a
SHA256

4fed412becd301c9f805f9391c5c4d3c1c094516f5eb09ba82ea97e802759e78
SHA512

09f6e1d07a76020c06b1817dcae26225273e47fde990596a49a4f6fa122e48f9b9dcaa9114f05cd74743d17dabd47afd7b108364fc3b56f38cfa6d701fa08a82
SSDEEP

12288:EZv3F8h86NMcoGuc3FXE4WrIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIj:Ep3F8Au3FPW

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
4084	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\gqcphnyd\ImagePath = "C:\\Windows\\SysWOW64\\gqcphnyd\\figbvcmw.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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	JaffaCakes118_0e8701d6ce1c4bcd1cf5be02393fd780.exe

Deletes itself 1 IoCs

pid	Process
3580	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3872	figbvcmw.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3872 set thread context of 3580	3872	figbvcmw.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
1148	sc.exe
1276	sc.exe
5100	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 queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3208	2308	WerFault.exe	82
3564	3872	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	figbvcmw.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_0e8701d6ce1c4bcd1cf5be02393fd780.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	netsh.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2308 wrote to memory of 4488	2308	JaffaCakes118_0e8701d6ce1c4bcd1cf5be02393fd780.exe	83
PID 2308 wrote to memory of 4488	2308	JaffaCakes118_0e8701d6ce1c4bcd1cf5be02393fd780.exe	83
PID 2308 wrote to memory of 4488	2308	JaffaCakes118_0e8701d6ce1c4bcd1cf5be02393fd780.exe	83
PID 2308 wrote to memory of 3632	2308	JaffaCakes118_0e8701d6ce1c4bcd1cf5be02393fd780.exe	85
PID 2308 wrote to memory of 3632	2308	JaffaCakes118_0e8701d6ce1c4bcd1cf5be02393fd780.exe	85
PID 2308 wrote to memory of 3632	2308	JaffaCakes118_0e8701d6ce1c4bcd1cf5be02393fd780.exe	85
PID 2308 wrote to memory of 1148	2308	JaffaCakes118_0e8701d6ce1c4bcd1cf5be02393fd780.exe	87
PID 2308 wrote to memory of 1148	2308	JaffaCakes118_0e8701d6ce1c4bcd1cf5be02393fd780.exe	87
PID 2308 wrote to memory of 1148	2308	JaffaCakes118_0e8701d6ce1c4bcd1cf5be02393fd780.exe	87
PID 2308 wrote to memory of 1276	2308	JaffaCakes118_0e8701d6ce1c4bcd1cf5be02393fd780.exe	90
PID 2308 wrote to memory of 1276	2308	JaffaCakes118_0e8701d6ce1c4bcd1cf5be02393fd780.exe	90
PID 2308 wrote to memory of 1276	2308	JaffaCakes118_0e8701d6ce1c4bcd1cf5be02393fd780.exe	90
PID 2308 wrote to memory of 5100	2308	JaffaCakes118_0e8701d6ce1c4bcd1cf5be02393fd780.exe	92
PID 2308 wrote to memory of 5100	2308	JaffaCakes118_0e8701d6ce1c4bcd1cf5be02393fd780.exe	92
PID 2308 wrote to memory of 5100	2308	JaffaCakes118_0e8701d6ce1c4bcd1cf5be02393fd780.exe	92
PID 2308 wrote to memory of 4084	2308	JaffaCakes118_0e8701d6ce1c4bcd1cf5be02393fd780.exe	95
PID 2308 wrote to memory of 4084	2308	JaffaCakes118_0e8701d6ce1c4bcd1cf5be02393fd780.exe	95
PID 2308 wrote to memory of 4084	2308	JaffaCakes118_0e8701d6ce1c4bcd1cf5be02393fd780.exe	95
PID 3872 wrote to memory of 3580	3872	figbvcmw.exe	101
PID 3872 wrote to memory of 3580	3872	figbvcmw.exe	101
PID 3872 wrote to memory of 3580	3872	figbvcmw.exe	101
PID 3872 wrote to memory of 3580	3872	figbvcmw.exe	101
PID 3872 wrote to memory of 3580	3872	figbvcmw.exe	101

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0e8701d6ce1c4bcd1cf5be02393fd780.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0e8701d6ce1c4bcd1cf5be02393fd780.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2308
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\gqcphnyd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4488
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\figbvcmw.exe" C:\Windows\SysWOW64\gqcphnyd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3632
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create gqcphnyd binPath= "C:\Windows\SysWOW64\gqcphnyd\figbvcmw.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0e8701d6ce1c4bcd1cf5be02393fd780.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1148
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description gqcphnyd "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1276
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start gqcphnyd
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5100
- 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:4084
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2308 -s 1332
  2⤵
  - Program crash
  PID:3208

C:\Windows\SysWOW64\gqcphnyd\figbvcmw.exe
C:\Windows\SysWOW64\gqcphnyd\figbvcmw.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0e8701d6ce1c4bcd1cf5be02393fd780.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3872
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3580
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3872 -s 512
  2⤵
  - Program crash
  PID:3564

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 2308 -ip 2308
1⤵
PID:1984

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3872 -ip 3872
1⤵
PID:628

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\figbvcmw.exe

Filesize
10.6MB

MD5
9e74ee18cd35d208bd479d515c950152

SHA1
27cc9220ad7782fd96a9b6a5a56355218ec83c0e

SHA256
641e61a920a457732ee114454e9658543424db05e4bd4cab38fac6b647d5496e

SHA512
9066694663afcb42c59dc78834dea084dfe826abbdc8546d2eba7ddf2af4613154669f9ca0a037652cfca70598fca4c191c6412baddf1fe747bc3fba3a522492

Download Submit
memory/2308-8-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/2308-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2308-1-0x00000000004E0000-0x00000000005E0000-memory.dmp

Filesize
1024KB

Download
memory/2308-9-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download
memory/2308-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2308-2-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download
memory/3580-14-0x0000000000BC0000-0x0000000000BD5000-memory.dmp

Filesize
84KB

Download
memory/3580-16-0x0000000000BC0000-0x0000000000BD5000-memory.dmp

Filesize
84KB

Download
memory/3580-17-0x0000000000BC0000-0x0000000000BD5000-memory.dmp

Filesize
84KB

Download
memory/3872-11-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/3872-12-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/3872-13-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/3872-19-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads