tofsee | 660de78e6fc321f5552b55f5882c1d51fff0128603c36db6a593169a4280c5c3

General

Target

JaffaCakes118_660de78e6fc321f5552b55f5882c1d51fff0128603c36db6a593169a4280c5c3.exe
Size

316KB
MD5

a36560eec176852fed2d2d2e7f815968
SHA1

574aedce9e329b3a5ede94ab347193e78e354287
SHA256

660de78e6fc321f5552b55f5882c1d51fff0128603c36db6a593169a4280c5c3
SHA512

aa99f43d3fd4e964860914641e38114dcc714434b5ee01163255117d35cb1ee39b13ad089cf61eddd5f79c88b7a7494fbeaa249b43b43dac3c35b40a0b2f0e4f
SSDEEP

6144:B8L9y5vZxOx+UuYuwSEIITL6n93z37Hi5Aj:GOb8+UuYuwSEIITL6n9fHi

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
3464	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\jmtvcdvf\ImagePath = "C:\\Windows\\SysWOW64\\jmtvcdvf\\wblbpu.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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	JaffaCakes118_660de78e6fc321f5552b55f5882c1d51fff0128603c36db6a593169a4280c5c3.exe

Deletes itself 1 IoCs

pid	Process
4460	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3328	wblbpu.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3328 set thread context of 4460	3328	wblbpu.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
5036	sc.exe
2196	sc.exe
4796	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
2288	4232	WerFault.exe	81
2176	3328	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wblbpu.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_660de78e6fc321f5552b55f5882c1d51fff0128603c36db6a593169a4280c5c3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4232 wrote to memory of 4376	4232	JaffaCakes118_660de78e6fc321f5552b55f5882c1d51fff0128603c36db6a593169a4280c5c3.exe	82
PID 4232 wrote to memory of 4376	4232	JaffaCakes118_660de78e6fc321f5552b55f5882c1d51fff0128603c36db6a593169a4280c5c3.exe	82
PID 4232 wrote to memory of 4376	4232	JaffaCakes118_660de78e6fc321f5552b55f5882c1d51fff0128603c36db6a593169a4280c5c3.exe	82
PID 4232 wrote to memory of 4024	4232	JaffaCakes118_660de78e6fc321f5552b55f5882c1d51fff0128603c36db6a593169a4280c5c3.exe	84
PID 4232 wrote to memory of 4024	4232	JaffaCakes118_660de78e6fc321f5552b55f5882c1d51fff0128603c36db6a593169a4280c5c3.exe	84
PID 4232 wrote to memory of 4024	4232	JaffaCakes118_660de78e6fc321f5552b55f5882c1d51fff0128603c36db6a593169a4280c5c3.exe	84
PID 4232 wrote to memory of 4796	4232	JaffaCakes118_660de78e6fc321f5552b55f5882c1d51fff0128603c36db6a593169a4280c5c3.exe	86
PID 4232 wrote to memory of 4796	4232	JaffaCakes118_660de78e6fc321f5552b55f5882c1d51fff0128603c36db6a593169a4280c5c3.exe	86
PID 4232 wrote to memory of 4796	4232	JaffaCakes118_660de78e6fc321f5552b55f5882c1d51fff0128603c36db6a593169a4280c5c3.exe	86
PID 4232 wrote to memory of 5036	4232	JaffaCakes118_660de78e6fc321f5552b55f5882c1d51fff0128603c36db6a593169a4280c5c3.exe	88
PID 4232 wrote to memory of 5036	4232	JaffaCakes118_660de78e6fc321f5552b55f5882c1d51fff0128603c36db6a593169a4280c5c3.exe	88
PID 4232 wrote to memory of 5036	4232	JaffaCakes118_660de78e6fc321f5552b55f5882c1d51fff0128603c36db6a593169a4280c5c3.exe	88
PID 4232 wrote to memory of 2196	4232	JaffaCakes118_660de78e6fc321f5552b55f5882c1d51fff0128603c36db6a593169a4280c5c3.exe	90
PID 4232 wrote to memory of 2196	4232	JaffaCakes118_660de78e6fc321f5552b55f5882c1d51fff0128603c36db6a593169a4280c5c3.exe	90
PID 4232 wrote to memory of 2196	4232	JaffaCakes118_660de78e6fc321f5552b55f5882c1d51fff0128603c36db6a593169a4280c5c3.exe	90
PID 4232 wrote to memory of 3464	4232	JaffaCakes118_660de78e6fc321f5552b55f5882c1d51fff0128603c36db6a593169a4280c5c3.exe	93
PID 4232 wrote to memory of 3464	4232	JaffaCakes118_660de78e6fc321f5552b55f5882c1d51fff0128603c36db6a593169a4280c5c3.exe	93
PID 4232 wrote to memory of 3464	4232	JaffaCakes118_660de78e6fc321f5552b55f5882c1d51fff0128603c36db6a593169a4280c5c3.exe	93
PID 3328 wrote to memory of 4460	3328	wblbpu.exe	98
PID 3328 wrote to memory of 4460	3328	wblbpu.exe	98
PID 3328 wrote to memory of 4460	3328	wblbpu.exe	98
PID 3328 wrote to memory of 4460	3328	wblbpu.exe	98
PID 3328 wrote to memory of 4460	3328	wblbpu.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_660de78e6fc321f5552b55f5882c1d51fff0128603c36db6a593169a4280c5c3.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_660de78e6fc321f5552b55f5882c1d51fff0128603c36db6a593169a4280c5c3.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4232
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\jmtvcdvf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4376
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\wblbpu.exe" C:\Windows\SysWOW64\jmtvcdvf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4024
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create jmtvcdvf binPath= "C:\Windows\SysWOW64\jmtvcdvf\wblbpu.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_660de78e6fc321f5552b55f5882c1d51fff0128603c36db6a593169a4280c5c3.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4796
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description jmtvcdvf "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5036
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start jmtvcdvf
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2196
- 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:3464
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4232 -s 1204
  2⤵
  - Program crash
  PID:2288

C:\Windows\SysWOW64\jmtvcdvf\wblbpu.exe
C:\Windows\SysWOW64\jmtvcdvf\wblbpu.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_660de78e6fc321f5552b55f5882c1d51fff0128603c36db6a593169a4280c5c3.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3328
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4460
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3328 -s 552
  2⤵
  - Program crash
  PID:2176

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 4232 -ip 4232
1⤵
PID:1152

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 3328 -ip 3328
1⤵
PID:1776

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\wblbpu.exe

Filesize
12.6MB

MD5
0ba087981bfb1c0aa8ce1bb0778527b3

SHA1
010a6881fd6c007920988de46a094251b079bf92

SHA256
d949a62864e05d7492ac585d1972950fabbf68af8738cc37d8a84f76979da03e

SHA512
29bb1034ee959a795f94a2736680d92d22cc11d7f3c881b4add538e6d9b01085a596e1daffffac9e258a1a07f59d00cb7346f83f48c73d19d597f40c57825964

Download Submit
memory/3328-15-0x0000000000400000-0x0000000002776000-memory.dmp

Filesize
35.5MB

Download
memory/4232-1-0x0000000002A10000-0x0000000002B10000-memory.dmp

Filesize
1024KB

Download
memory/4232-2-0x00000000044C0000-0x00000000044D3000-memory.dmp

Filesize
76KB

Download
memory/4232-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4232-8-0x00000000044C0000-0x00000000044D3000-memory.dmp

Filesize
76KB

Download
memory/4232-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4232-7-0x0000000000400000-0x0000000002776000-memory.dmp

Filesize
35.5MB

Download
memory/4460-11-0x0000000001000000-0x0000000001015000-memory.dmp

Filesize
84KB

Download
memory/4460-13-0x0000000001000000-0x0000000001015000-memory.dmp

Filesize
84KB

Download
memory/4460-14-0x0000000001000000-0x0000000001015000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads