tofsee | 9cfdc0c6aaa377d24461f118828636346eb37772b83c2501cd9529284ac29f62

General

Target

JaffaCakes118_5af5f614cca9e39b1ca31bedd6bfd18d.exe
Size

10.4MB
MD5

5af5f614cca9e39b1ca31bedd6bfd18d
SHA1

45a425802fdcbf3d5bce39a73c972569af715958
SHA256

9cfdc0c6aaa377d24461f118828636346eb37772b83c2501cd9529284ac29f62
SHA512

43cc0ef6103967b2f70d414023ea1605fa02f2828bb10e9e0c53fc4ccc7dd71f71bf8589b67345876b9c1d2fa57e5782826170931d7d5414e274770197ce905d
SSDEEP

196608:qwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwn:

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
2936	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\nkglxqyk\ImagePath = "C:\\Windows\\SysWOW64\\nkglxqyk\\kzagteyx.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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	JaffaCakes118_5af5f614cca9e39b1ca31bedd6bfd18d.exe

Deletes itself 1 IoCs

pid	Process
2448	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1412	kzagteyx.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1412 set thread context of 2448	1412	kzagteyx.exe	105

Launches sc.exe 3 IoCs

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

pid	Process
4696	sc.exe
5056	sc.exe
3052	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
1144	2988	WerFault.exe	82
2336	1412	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	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	kzagteyx.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_5af5f614cca9e39b1ca31bedd6bfd18d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2988 wrote to memory of 1944	2988	JaffaCakes118_5af5f614cca9e39b1ca31bedd6bfd18d.exe	83
PID 2988 wrote to memory of 1944	2988	JaffaCakes118_5af5f614cca9e39b1ca31bedd6bfd18d.exe	83
PID 2988 wrote to memory of 1944	2988	JaffaCakes118_5af5f614cca9e39b1ca31bedd6bfd18d.exe	83
PID 2988 wrote to memory of 5004	2988	JaffaCakes118_5af5f614cca9e39b1ca31bedd6bfd18d.exe	86
PID 2988 wrote to memory of 5004	2988	JaffaCakes118_5af5f614cca9e39b1ca31bedd6bfd18d.exe	86
PID 2988 wrote to memory of 5004	2988	JaffaCakes118_5af5f614cca9e39b1ca31bedd6bfd18d.exe	86
PID 2988 wrote to memory of 4696	2988	JaffaCakes118_5af5f614cca9e39b1ca31bedd6bfd18d.exe	88
PID 2988 wrote to memory of 4696	2988	JaffaCakes118_5af5f614cca9e39b1ca31bedd6bfd18d.exe	88
PID 2988 wrote to memory of 4696	2988	JaffaCakes118_5af5f614cca9e39b1ca31bedd6bfd18d.exe	88
PID 2988 wrote to memory of 5056	2988	JaffaCakes118_5af5f614cca9e39b1ca31bedd6bfd18d.exe	90
PID 2988 wrote to memory of 5056	2988	JaffaCakes118_5af5f614cca9e39b1ca31bedd6bfd18d.exe	90
PID 2988 wrote to memory of 5056	2988	JaffaCakes118_5af5f614cca9e39b1ca31bedd6bfd18d.exe	90
PID 2988 wrote to memory of 3052	2988	JaffaCakes118_5af5f614cca9e39b1ca31bedd6bfd18d.exe	92
PID 2988 wrote to memory of 3052	2988	JaffaCakes118_5af5f614cca9e39b1ca31bedd6bfd18d.exe	92
PID 2988 wrote to memory of 3052	2988	JaffaCakes118_5af5f614cca9e39b1ca31bedd6bfd18d.exe	92
PID 2988 wrote to memory of 2936	2988	JaffaCakes118_5af5f614cca9e39b1ca31bedd6bfd18d.exe	97
PID 2988 wrote to memory of 2936	2988	JaffaCakes118_5af5f614cca9e39b1ca31bedd6bfd18d.exe	97
PID 2988 wrote to memory of 2936	2988	JaffaCakes118_5af5f614cca9e39b1ca31bedd6bfd18d.exe	97
PID 1412 wrote to memory of 2448	1412	kzagteyx.exe	105
PID 1412 wrote to memory of 2448	1412	kzagteyx.exe	105
PID 1412 wrote to memory of 2448	1412	kzagteyx.exe	105
PID 1412 wrote to memory of 2448	1412	kzagteyx.exe	105
PID 1412 wrote to memory of 2448	1412	kzagteyx.exe	105

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5af5f614cca9e39b1ca31bedd6bfd18d.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5af5f614cca9e39b1ca31bedd6bfd18d.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2988
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\nkglxqyk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1944
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kzagteyx.exe" C:\Windows\SysWOW64\nkglxqyk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5004
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create nkglxqyk binPath= "C:\Windows\SysWOW64\nkglxqyk\kzagteyx.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5af5f614cca9e39b1ca31bedd6bfd18d.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4696
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description nkglxqyk "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5056
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start nkglxqyk
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3052
- 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:2936
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2988 -s 1040
  2⤵
  - Program crash
  PID:1144

C:\Windows\SysWOW64\nkglxqyk\kzagteyx.exe
C:\Windows\SysWOW64\nkglxqyk\kzagteyx.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5af5f614cca9e39b1ca31bedd6bfd18d.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1412
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2448
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1412 -s 532
  2⤵
  - Program crash
  PID:2336

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 2988 -ip 2988
1⤵
PID:3180

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 1412 -ip 1412
1⤵
PID:2236

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\kzagteyx.exe

Filesize
14.8MB

MD5
c6b0029ca7421ce21a777acc7ad9903c

SHA1
659e27516ff5d8eae2c18533e65e2e464837cd87

SHA256
d49a22d4a2901e442a9b323fd33a48e3f7398562fe0cbda2adf86e47fed44f98

SHA512
f5ae67ff231015d5d1873b03c54913b156cbe7e8f22dd8c02fc25ca621ecac3ee1ed99622fc3f66012b0745f442db655a14affb572a589818d79637504dcac2d

Download Submit
memory/1412-15-0x0000000000400000-0x0000000002F11000-memory.dmp

Filesize
43.1MB

Download
memory/2448-11-0x0000000000820000-0x0000000000835000-memory.dmp

Filesize
84KB

Download
memory/2448-13-0x0000000000820000-0x0000000000835000-memory.dmp

Filesize
84KB

Download
memory/2448-14-0x0000000000820000-0x0000000000835000-memory.dmp

Filesize
84KB

Download
memory/2988-2-0x00000000030C0000-0x00000000030D3000-memory.dmp

Filesize
76KB

Download
memory/2988-1-0x0000000003140000-0x0000000003240000-memory.dmp

Filesize
1024KB

Download
memory/2988-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2988-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2988-9-0x00000000030C0000-0x00000000030D3000-memory.dmp

Filesize
76KB

Download
memory/2988-8-0x0000000000400000-0x0000000002F11000-memory.dmp

Filesize
43.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads