tofsee | e696fdd3d19e5c9ebcd5f5435ef8819fb793d6a97d16108ca2e9f0fd5433ac8f

General

Target

9b769cda1ae8ae818ab31597bb6b7bed_JaffaCakes118.exe
Size

13.1MB
MD5

9b769cda1ae8ae818ab31597bb6b7bed
SHA1

63e0402438e10592e7f110ded216cd00cd6f96fb
SHA256

e696fdd3d19e5c9ebcd5f5435ef8819fb793d6a97d16108ca2e9f0fd5433ac8f
SHA512

0c84f43118c8bb3c37bfa8b2f3c8c915bafa58f0c258dc7e12886a66f8ad125c839a98ead5d3eeee3520c61a88e24658efce0a8e0d9bee46ed95bbb5677fdf7f
SSDEEP

196608:3RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRB:

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.6

lazystax.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
2636	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\gswjniix\ImagePath = "C:\\Windows\\SysWOW64\\gswjniix\\axusepes.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	9b769cda1ae8ae818ab31597bb6b7bed_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
2728	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4292	axusepes.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4292 set thread context of 2728	4292	axusepes.exe	109

Launches sc.exe 3 IoCs

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

pid	Process
2592	sc.exe
3832	sc.exe
3964	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
2248	4852	WerFault.exe	82
1252	4292	WerFault.exe	100

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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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	axusepes.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9b769cda1ae8ae818ab31597bb6b7bed_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4852 wrote to memory of 1936	4852	9b769cda1ae8ae818ab31597bb6b7bed_JaffaCakes118.exe	84
PID 4852 wrote to memory of 1936	4852	9b769cda1ae8ae818ab31597bb6b7bed_JaffaCakes118.exe	84
PID 4852 wrote to memory of 1936	4852	9b769cda1ae8ae818ab31597bb6b7bed_JaffaCakes118.exe	84
PID 4852 wrote to memory of 4960	4852	9b769cda1ae8ae818ab31597bb6b7bed_JaffaCakes118.exe	88
PID 4852 wrote to memory of 4960	4852	9b769cda1ae8ae818ab31597bb6b7bed_JaffaCakes118.exe	88
PID 4852 wrote to memory of 4960	4852	9b769cda1ae8ae818ab31597bb6b7bed_JaffaCakes118.exe	88
PID 4852 wrote to memory of 2592	4852	9b769cda1ae8ae818ab31597bb6b7bed_JaffaCakes118.exe	90
PID 4852 wrote to memory of 2592	4852	9b769cda1ae8ae818ab31597bb6b7bed_JaffaCakes118.exe	90
PID 4852 wrote to memory of 2592	4852	9b769cda1ae8ae818ab31597bb6b7bed_JaffaCakes118.exe	90
PID 4852 wrote to memory of 3832	4852	9b769cda1ae8ae818ab31597bb6b7bed_JaffaCakes118.exe	96
PID 4852 wrote to memory of 3832	4852	9b769cda1ae8ae818ab31597bb6b7bed_JaffaCakes118.exe	96
PID 4852 wrote to memory of 3832	4852	9b769cda1ae8ae818ab31597bb6b7bed_JaffaCakes118.exe	96
PID 4852 wrote to memory of 3964	4852	9b769cda1ae8ae818ab31597bb6b7bed_JaffaCakes118.exe	98
PID 4852 wrote to memory of 3964	4852	9b769cda1ae8ae818ab31597bb6b7bed_JaffaCakes118.exe	98
PID 4852 wrote to memory of 3964	4852	9b769cda1ae8ae818ab31597bb6b7bed_JaffaCakes118.exe	98
PID 4852 wrote to memory of 2636	4852	9b769cda1ae8ae818ab31597bb6b7bed_JaffaCakes118.exe	101
PID 4852 wrote to memory of 2636	4852	9b769cda1ae8ae818ab31597bb6b7bed_JaffaCakes118.exe	101
PID 4852 wrote to memory of 2636	4852	9b769cda1ae8ae818ab31597bb6b7bed_JaffaCakes118.exe	101
PID 4292 wrote to memory of 2728	4292	axusepes.exe	109
PID 4292 wrote to memory of 2728	4292	axusepes.exe	109
PID 4292 wrote to memory of 2728	4292	axusepes.exe	109
PID 4292 wrote to memory of 2728	4292	axusepes.exe	109
PID 4292 wrote to memory of 2728	4292	axusepes.exe	109

C:\Users\Admin\AppData\Local\Temp\9b769cda1ae8ae818ab31597bb6b7bed_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\9b769cda1ae8ae818ab31597bb6b7bed_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4852
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\gswjniix\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1936
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\axusepes.exe" C:\Windows\SysWOW64\gswjniix\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4960
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create gswjniix binPath= "C:\Windows\SysWOW64\gswjniix\axusepes.exe /d\"C:\Users\Admin\AppData\Local\Temp\9b769cda1ae8ae818ab31597bb6b7bed_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2592
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description gswjniix "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3832
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start gswjniix
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3964
- 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:2636
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4852 -s 1132
  2⤵
  - Program crash
  PID:2248

C:\Windows\SysWOW64\gswjniix\axusepes.exe
C:\Windows\SysWOW64\gswjniix\axusepes.exe /d"C:\Users\Admin\AppData\Local\Temp\9b769cda1ae8ae818ab31597bb6b7bed_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4292
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2728
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4292 -s 508
  2⤵
  - Program crash
  PID:1252

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4852 -ip 4852
1⤵
PID:4812

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 4292 -ip 4292
1⤵
PID:3596

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\axusepes.exe

Filesize
12.7MB

MD5
cc22eead1c4bb4ec18ce47b03472a64b

SHA1
f707bf50034d70b4673068dbab9ac42a20ac6981

SHA256
a7880e314a99ec8417716ed08b7643f6c78ed4e3ccbcb241b5eca40e8d186796

SHA512
8f859b1d9a5b58bb7db49467ac4b4cbee2e05c3d4a896d44b907ffc5c18192672d8af5ff160002868c8b9bd2c65d61ad1d3a75ac223027b3b95ebccd8a4f9b0d

Download Submit
memory/2728-11-0x0000000000FE0000-0x0000000000FF5000-memory.dmp

Filesize
84KB

Download
memory/2728-13-0x0000000000FE0000-0x0000000000FF5000-memory.dmp

Filesize
84KB

Download
memory/2728-14-0x0000000000FE0000-0x0000000000FF5000-memory.dmp

Filesize
84KB

Download
memory/4292-15-0x0000000000400000-0x00000000008EA000-memory.dmp

Filesize
4.9MB

Download
memory/4852-1-0x0000000000960000-0x0000000000A60000-memory.dmp

Filesize
1024KB

Download
memory/4852-2-0x0000000002630000-0x0000000002643000-memory.dmp

Filesize
76KB

Download
memory/4852-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4852-7-0x0000000000400000-0x00000000008EA000-memory.dmp

Filesize
4.9MB

Download
memory/4852-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4852-8-0x0000000002630000-0x0000000002643000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads