tofsee | 6aaa238185116b9f6a39fa03c76d598e7417e947925b440ae21f3eff53932ea2

General

Target

136c259a22df84eedaa18cdda99ec7d7_JaffaCakes118.exe
Size

11.9MB
MD5

136c259a22df84eedaa18cdda99ec7d7
SHA1

8fa44d18937b3b5b556b4267513d6a1d969fe44e
SHA256

6aaa238185116b9f6a39fa03c76d598e7417e947925b440ae21f3eff53932ea2
SHA512

a89347a18d77e5b42764b7fc03506b72eb4f7361c5d3fc1baa4830eef36ba446ed601cd75e9e359684ae62bfe5e611be8b918ceb0f67d05ca0dc5f6aa6633d65
SSDEEP

196608:tX//////////////////////////////////////////////////////////////:t//////////////////////////////n

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

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\zynwtqry = "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

2604 netsh.exe

pid	process
2604	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\zynwtqry\ImagePath = "C:\\Windows\\SysWOW64\\zynwtqry\\xehfggwk.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

1356 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

xehfggwk.exe

pid process

2548 xehfggwk.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

xehfggwk.exe

description pid process target process

PID 2548 set thread context of 1356 2548 xehfggwk.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

2928 sc.exe
2580 sc.exe
2820 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
1356	svchost.exe

pid	process
2548	xehfggwk.exe

description	pid	process	target process
PID 2548 set thread context of 1356	2548	xehfggwk.exe	svchost.exe

pid	process
2928	sc.exe
2580	sc.exe
2820	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 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

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:

cmd.exesc.exenetsh.exesvchost.exe136c259a22df84eedaa18cdda99ec7d7_JaffaCakes118.execmd.exesc.exesc.exexehfggwk.exe

description	ioc	process
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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	136c259a22df84eedaa18cdda99ec7d7_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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	xehfggwk.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

136c259a22df84eedaa18cdda99ec7d7_JaffaCakes118.exexehfggwk.exe

description	pid	process	target process
PID 764 wrote to memory of 2788	764	136c259a22df84eedaa18cdda99ec7d7_JaffaCakes118.exe	cmd.exe
PID 764 wrote to memory of 2788	764	136c259a22df84eedaa18cdda99ec7d7_JaffaCakes118.exe	cmd.exe
PID 764 wrote to memory of 2788	764	136c259a22df84eedaa18cdda99ec7d7_JaffaCakes118.exe	cmd.exe
PID 764 wrote to memory of 2788	764	136c259a22df84eedaa18cdda99ec7d7_JaffaCakes118.exe	cmd.exe
PID 764 wrote to memory of 2656	764	136c259a22df84eedaa18cdda99ec7d7_JaffaCakes118.exe	cmd.exe
PID 764 wrote to memory of 2656	764	136c259a22df84eedaa18cdda99ec7d7_JaffaCakes118.exe	cmd.exe
PID 764 wrote to memory of 2656	764	136c259a22df84eedaa18cdda99ec7d7_JaffaCakes118.exe	cmd.exe
PID 764 wrote to memory of 2656	764	136c259a22df84eedaa18cdda99ec7d7_JaffaCakes118.exe	cmd.exe
PID 764 wrote to memory of 2928	764	136c259a22df84eedaa18cdda99ec7d7_JaffaCakes118.exe	sc.exe
PID 764 wrote to memory of 2928	764	136c259a22df84eedaa18cdda99ec7d7_JaffaCakes118.exe	sc.exe
PID 764 wrote to memory of 2928	764	136c259a22df84eedaa18cdda99ec7d7_JaffaCakes118.exe	sc.exe
PID 764 wrote to memory of 2928	764	136c259a22df84eedaa18cdda99ec7d7_JaffaCakes118.exe	sc.exe
PID 764 wrote to memory of 2580	764	136c259a22df84eedaa18cdda99ec7d7_JaffaCakes118.exe	sc.exe
PID 764 wrote to memory of 2580	764	136c259a22df84eedaa18cdda99ec7d7_JaffaCakes118.exe	sc.exe
PID 764 wrote to memory of 2580	764	136c259a22df84eedaa18cdda99ec7d7_JaffaCakes118.exe	sc.exe
PID 764 wrote to memory of 2580	764	136c259a22df84eedaa18cdda99ec7d7_JaffaCakes118.exe	sc.exe
PID 764 wrote to memory of 2820	764	136c259a22df84eedaa18cdda99ec7d7_JaffaCakes118.exe	sc.exe
PID 764 wrote to memory of 2820	764	136c259a22df84eedaa18cdda99ec7d7_JaffaCakes118.exe	sc.exe
PID 764 wrote to memory of 2820	764	136c259a22df84eedaa18cdda99ec7d7_JaffaCakes118.exe	sc.exe
PID 764 wrote to memory of 2820	764	136c259a22df84eedaa18cdda99ec7d7_JaffaCakes118.exe	sc.exe
PID 764 wrote to memory of 2604	764	136c259a22df84eedaa18cdda99ec7d7_JaffaCakes118.exe	netsh.exe
PID 764 wrote to memory of 2604	764	136c259a22df84eedaa18cdda99ec7d7_JaffaCakes118.exe	netsh.exe
PID 764 wrote to memory of 2604	764	136c259a22df84eedaa18cdda99ec7d7_JaffaCakes118.exe	netsh.exe
PID 764 wrote to memory of 2604	764	136c259a22df84eedaa18cdda99ec7d7_JaffaCakes118.exe	netsh.exe
PID 2548 wrote to memory of 1356	2548	xehfggwk.exe	svchost.exe
PID 2548 wrote to memory of 1356	2548	xehfggwk.exe	svchost.exe
PID 2548 wrote to memory of 1356	2548	xehfggwk.exe	svchost.exe
PID 2548 wrote to memory of 1356	2548	xehfggwk.exe	svchost.exe
PID 2548 wrote to memory of 1356	2548	xehfggwk.exe	svchost.exe
PID 2548 wrote to memory of 1356	2548	xehfggwk.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\136c259a22df84eedaa18cdda99ec7d7_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\136c259a22df84eedaa18cdda99ec7d7_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:764

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zynwtqry\
2⤵
- System Location Discovery: System Language Discovery
PID:2788

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\xehfggwk.exe" C:\Windows\SysWOW64\zynwtqry\
2⤵
- System Location Discovery: System Language Discovery
PID:2656

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create zynwtqry binPath= "C:\Windows\SysWOW64\zynwtqry\xehfggwk.exe /d\"C:\Users\Admin\AppData\Local\Temp\136c259a22df84eedaa18cdda99ec7d7_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:2928

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description zynwtqry "wifi internet conection"
2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:2580

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start zynwtqry
2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:2820

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:2604

C:\Windows\SysWOW64\zynwtqry\xehfggwk.exe
C:\Windows\SysWOW64\zynwtqry\xehfggwk.exe /d"C:\Users\Admin\AppData\Local\Temp\136c259a22df84eedaa18cdda99ec7d7_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2548

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:1356

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\xehfggwk.exe

Filesize
14.9MB

MD5
370b2cc2e10af2112e170bc5b9090b36

SHA1
0301e44d4f3d8536fe202f49c6c8e5f323164ca5

SHA256
84c685c25c535b4f68cb471c037b1daf0c07c2f6f6bda624b82bcf765e567a27

SHA512
a53d48826a5c1f88c6604c21d23bfac4cc2f4f8f9f1e707cffff21f5b3f1911bce66c968aca9997e4946986ce11a0395d2e913641148ada7c1d4e4c69b8fe95b

Download Submit
memory/764-9-0x0000000000400000-0x0000000000459000-memory.dmp

Filesize
356KB

Download
memory/764-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/764-3-0x0000000000400000-0x0000000000459000-memory.dmp

Filesize
356KB

Download
memory/764-11-0x0000000000580000-0x0000000000680000-memory.dmp

Filesize
1024KB

Download
memory/764-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/764-1-0x0000000000580000-0x0000000000680000-memory.dmp

Filesize
1024KB

Download
memory/1356-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1356-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1356-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1356-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1356-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2548-18-0x0000000000400000-0x0000000000459000-memory.dmp

Filesize
356KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads