tofsee | ee3e70cbecce8d6441bf0ab40c6e8c9b6bd25766ec39831de257ba1bf4d373c1

General

Target

79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.exe
Size

12.6MB
MD5

79e24581526ffc14f107bb3bc28ff108
SHA1

2ca1b6f5fc30878238ccf481acd095d51b430c8e
SHA256

ee3e70cbecce8d6441bf0ab40c6e8c9b6bd25766ec39831de257ba1bf4d373c1
SHA512

5bef24d5305d930875422a1eb974a4d533b097a466251dda0ef5882237a09a0767df7815861f58da0e8c2fa07178358593b113a5a05a068997663e4e94fbb841
SSDEEP

49152:mGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGD:

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

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\kqlapjpg = "0"	svchost.exe

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

Processes:

netsh.exe

pid process

2796 netsh.exe

pid	process
2796	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\kqlapjpg\ImagePath = "C:\\Windows\\SysWOW64\\kqlapjpg\\fmkvavjx.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2688 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

fmkvavjx.exe

pid process

2772 fmkvavjx.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

fmkvavjx.exe

description pid process target process

PID 2772 set thread context of 2688 2772 fmkvavjx.exe svchost.exe
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.

Processes:

sc.exesc.exesc.exe

pid process

2952 sc.exe
2556 sc.exe
2924 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2688	svchost.exe

pid	process
2772	fmkvavjx.exe

description	pid	process	target process
PID 2772 set thread context of 2688	2772	fmkvavjx.exe	svchost.exe

pid	process
2952	sc.exe
2556	sc.exe
2924	sc.exe

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

Processes:

netsh.exe

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

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

Processes:

sc.exenetsh.exe79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.execmd.exesc.exefmkvavjx.exesvchost.execmd.exesc.exe

description	ioc	process
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	79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.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	fmkvavjx.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	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.exefmkvavjx.exe

description	pid	process	target process
PID 1700 wrote to memory of 2296	1700	79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.exe	cmd.exe
PID 1700 wrote to memory of 2296	1700	79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.exe	cmd.exe
PID 1700 wrote to memory of 2296	1700	79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.exe	cmd.exe
PID 1700 wrote to memory of 2296	1700	79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.exe	cmd.exe
PID 1700 wrote to memory of 1792	1700	79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.exe	cmd.exe
PID 1700 wrote to memory of 1792	1700	79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.exe	cmd.exe
PID 1700 wrote to memory of 1792	1700	79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.exe	cmd.exe
PID 1700 wrote to memory of 1792	1700	79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.exe	cmd.exe
PID 1700 wrote to memory of 2952	1700	79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.exe	sc.exe
PID 1700 wrote to memory of 2952	1700	79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.exe	sc.exe
PID 1700 wrote to memory of 2952	1700	79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.exe	sc.exe
PID 1700 wrote to memory of 2952	1700	79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.exe	sc.exe
PID 1700 wrote to memory of 2556	1700	79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.exe	sc.exe
PID 1700 wrote to memory of 2556	1700	79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.exe	sc.exe
PID 1700 wrote to memory of 2556	1700	79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.exe	sc.exe
PID 1700 wrote to memory of 2556	1700	79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.exe	sc.exe
PID 1700 wrote to memory of 2924	1700	79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.exe	sc.exe
PID 1700 wrote to memory of 2924	1700	79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.exe	sc.exe
PID 1700 wrote to memory of 2924	1700	79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.exe	sc.exe
PID 1700 wrote to memory of 2924	1700	79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.exe	sc.exe
PID 1700 wrote to memory of 2796	1700	79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.exe	netsh.exe
PID 1700 wrote to memory of 2796	1700	79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.exe	netsh.exe
PID 1700 wrote to memory of 2796	1700	79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.exe	netsh.exe
PID 1700 wrote to memory of 2796	1700	79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.exe	netsh.exe
PID 2772 wrote to memory of 2688	2772	fmkvavjx.exe	svchost.exe
PID 2772 wrote to memory of 2688	2772	fmkvavjx.exe	svchost.exe
PID 2772 wrote to memory of 2688	2772	fmkvavjx.exe	svchost.exe
PID 2772 wrote to memory of 2688	2772	fmkvavjx.exe	svchost.exe
PID 2772 wrote to memory of 2688	2772	fmkvavjx.exe	svchost.exe
PID 2772 wrote to memory of 2688	2772	fmkvavjx.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1700
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\kqlapjpg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2296
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\fmkvavjx.exe" C:\Windows\SysWOW64\kqlapjpg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1792
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create kqlapjpg binPath= "C:\Windows\SysWOW64\kqlapjpg\fmkvavjx.exe /d\"C:\Users\Admin\AppData\Local\Temp\79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2952
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description kqlapjpg "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2556
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start kqlapjpg
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2924
- 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:2796

C:\Windows\SysWOW64\kqlapjpg\fmkvavjx.exe
C:\Windows\SysWOW64\kqlapjpg\fmkvavjx.exe /d"C:\Users\Admin\AppData\Local\Temp\79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2772
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2688

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

2

T1562

Disable or Modify System Firewall

1

T1562.004

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

System Information Discovery

1

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\fmkvavjx.exe

Filesize
11.6MB

MD5
5557f107a987df8914257aea82f818bc

SHA1
fd2b4c4effc0a3da4bd01a21b705701d4172e8c8

SHA256
d04fbb959d664d851f681d742273811f99c2b14b646a08ac6bd859cdf0bf57c9

SHA512
a838fadb8155b3b8b8dced89371219afa514582abaafd7d4a844fda7c847da6b5dbbba1e51df2c5a9e763322481e3d377ee4edac59e0d75778b3da35e2bec54d

Download Submit
memory/1700-1-0x00000000005D0000-0x00000000006D0000-memory.dmp

Filesize
1024KB

Download
memory/1700-3-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/1700-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1700-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1700-9-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/2688-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2688-16-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2688-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2688-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2688-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2772-17-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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