tofsee | edc8ecfa92c7a95befe10e41a1c8b6a1a139b3e38173347f8f54206f3ada0d19

General

Target

JaffaCakes118_0d553328950c5076346fcabbd1a28381.exe
Size

11.8MB
MD5

0d553328950c5076346fcabbd1a28381
SHA1

fd0ee31ba8dfa3f88015febba22b191bf3713b5b
SHA256

edc8ecfa92c7a95befe10e41a1c8b6a1a139b3e38173347f8f54206f3ada0d19
SHA512

fa02ff7f4676df60f283ce9ab81aadde9acfd611e8e44de6dcbb7da2f07f36b521bf4c1e2cfbcf86bd5a6935dd2bda8319962da7cf3b7c0f571d49c6c5adc8bf
SSDEEP

49152:quqUj++++++++++++++++++++++++++++++++++++++++++++++++++++++++++y:Jb

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
2656	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\ypbfpqfv\ImagePath = "C:\\Windows\\SysWOW64\\ypbfpqfv\\awllqxdu.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_0d553328950c5076346fcabbd1a28381.exe

Deletes itself 1 IoCs

pid	Process
2936	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1440	awllqxdu.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1440 set thread context of 2936	1440	awllqxdu.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
2792	sc.exe
4276	sc.exe
1140	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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4808	4872	WerFault.exe	81
716	1440	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	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	awllqxdu.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_0d553328950c5076346fcabbd1a28381.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	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4872 wrote to memory of 4588	4872	JaffaCakes118_0d553328950c5076346fcabbd1a28381.exe	82
PID 4872 wrote to memory of 4588	4872	JaffaCakes118_0d553328950c5076346fcabbd1a28381.exe	82
PID 4872 wrote to memory of 4588	4872	JaffaCakes118_0d553328950c5076346fcabbd1a28381.exe	82
PID 4872 wrote to memory of 4836	4872	JaffaCakes118_0d553328950c5076346fcabbd1a28381.exe	84
PID 4872 wrote to memory of 4836	4872	JaffaCakes118_0d553328950c5076346fcabbd1a28381.exe	84
PID 4872 wrote to memory of 4836	4872	JaffaCakes118_0d553328950c5076346fcabbd1a28381.exe	84
PID 4872 wrote to memory of 2792	4872	JaffaCakes118_0d553328950c5076346fcabbd1a28381.exe	86
PID 4872 wrote to memory of 2792	4872	JaffaCakes118_0d553328950c5076346fcabbd1a28381.exe	86
PID 4872 wrote to memory of 2792	4872	JaffaCakes118_0d553328950c5076346fcabbd1a28381.exe	86
PID 4872 wrote to memory of 4276	4872	JaffaCakes118_0d553328950c5076346fcabbd1a28381.exe	88
PID 4872 wrote to memory of 4276	4872	JaffaCakes118_0d553328950c5076346fcabbd1a28381.exe	88
PID 4872 wrote to memory of 4276	4872	JaffaCakes118_0d553328950c5076346fcabbd1a28381.exe	88
PID 4872 wrote to memory of 1140	4872	JaffaCakes118_0d553328950c5076346fcabbd1a28381.exe	90
PID 4872 wrote to memory of 1140	4872	JaffaCakes118_0d553328950c5076346fcabbd1a28381.exe	90
PID 4872 wrote to memory of 1140	4872	JaffaCakes118_0d553328950c5076346fcabbd1a28381.exe	90
PID 4872 wrote to memory of 2656	4872	JaffaCakes118_0d553328950c5076346fcabbd1a28381.exe	93
PID 4872 wrote to memory of 2656	4872	JaffaCakes118_0d553328950c5076346fcabbd1a28381.exe	93
PID 4872 wrote to memory of 2656	4872	JaffaCakes118_0d553328950c5076346fcabbd1a28381.exe	93
PID 1440 wrote to memory of 2936	1440	awllqxdu.exe	98
PID 1440 wrote to memory of 2936	1440	awllqxdu.exe	98
PID 1440 wrote to memory of 2936	1440	awllqxdu.exe	98
PID 1440 wrote to memory of 2936	1440	awllqxdu.exe	98
PID 1440 wrote to memory of 2936	1440	awllqxdu.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0d553328950c5076346fcabbd1a28381.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0d553328950c5076346fcabbd1a28381.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4872
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ypbfpqfv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4588
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\awllqxdu.exe" C:\Windows\SysWOW64\ypbfpqfv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4836
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ypbfpqfv binPath= "C:\Windows\SysWOW64\ypbfpqfv\awllqxdu.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0d553328950c5076346fcabbd1a28381.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 ypbfpqfv "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4276
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ypbfpqfv
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1140
- 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:2656
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4872 -s 1048
  2⤵
  - Program crash
  PID:4808

C:\Windows\SysWOW64\ypbfpqfv\awllqxdu.exe
C:\Windows\SysWOW64\ypbfpqfv\awllqxdu.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0d553328950c5076346fcabbd1a28381.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1440
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2936
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1440 -s 520
  2⤵
  - Program crash
  PID:716

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4872 -ip 4872
1⤵
PID:952

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1440 -ip 1440
1⤵
PID:1636

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\awllqxdu.exe

Filesize
11.3MB

MD5
fb563d7ac38bd1d92713d6a6bd6ce474

SHA1
c3bde11b988e93005fe877b8732dc68926528757

SHA256
9d4e8989a95c7b97e5a142686ab627f659b366ac27ca28d71e3940f560d14d72

SHA512
6a1115c159ae6f35435646a94569d6789c6b84bca2b3ec74f0d62cb987331f1bf3bca3965f7fe46113292a5178b4c66f1894ee20eb3245b4a0cf763a6b4aa966

Download Submit
memory/1440-14-0x0000000000400000-0x00000000016BC000-memory.dmp

Filesize
18.7MB

Download
memory/1440-16-0x0000000000400000-0x00000000016BC000-memory.dmp

Filesize
18.7MB

Download
memory/2936-11-0x0000000000EE0000-0x0000000000EF5000-memory.dmp

Filesize
84KB

Download
memory/2936-13-0x0000000000EE0000-0x0000000000EF5000-memory.dmp

Filesize
84KB

Download
memory/2936-15-0x0000000000EE0000-0x0000000000EF5000-memory.dmp

Filesize
84KB

Download
memory/4872-2-0x0000000001A60000-0x0000000001A73000-memory.dmp

Filesize
76KB

Download
memory/4872-1-0x0000000001A90000-0x0000000001B90000-memory.dmp

Filesize
1024KB

Download
memory/4872-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4872-9-0x0000000001A60000-0x0000000001A73000-memory.dmp

Filesize
76KB

Download
memory/4872-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4872-8-0x0000000000400000-0x00000000016BC000-memory.dmp

Filesize
18.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads