tofsee | ca5bb759e9f0677df3b9770fa4dc049aa3bba670a8a4a687da7c8f98ea006eaf

General

Target

f9e1d7d2519ce613a8c5ac3ce9c848d4_JaffaCakes118.exe
Size

13.3MB
MD5

f9e1d7d2519ce613a8c5ac3ce9c848d4
SHA1

c6e51f42fe2e18053ee1a292199fc371c75b69fa
SHA256

ca5bb759e9f0677df3b9770fa4dc049aa3bba670a8a4a687da7c8f98ea006eaf
SHA512

955166b5c8c76bed92a4d234fe0e0d84068f4f07e601095ea9ca480879c6be67d3bd59c6f59b0963cc90e1f9e24b8226c9f10c2e36b1468e1073cbae69faa8fb
SSDEEP

393216:8xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxL:

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\atqufnsr = "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

2456 netsh.exe

pid	process
2456	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\atqufnsr\ImagePath = "C:\\Windows\\SysWOW64\\atqufnsr\\sxtljmy.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

572 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

sxtljmy.exe

pid process

2264 sxtljmy.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

sxtljmy.exe

description pid process target process

PID 2264 set thread context of 572 2264 sxtljmy.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

2624 sc.exe
2600 sc.exe
2668 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
572	svchost.exe

pid	process
2264	sxtljmy.exe

description	pid	process	target process
PID 2264 set thread context of 572	2264	sxtljmy.exe	svchost.exe

pid	process
2624	sc.exe
2600	sc.exe
2668	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:

sc.exenetsh.exesxtljmy.exesvchost.exef9e1d7d2519ce613a8c5ac3ce9c848d4_JaffaCakes118.exesc.exesc.execmd.execmd.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	sxtljmy.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f9e1d7d2519ce613a8c5ac3ce9c848d4_JaffaCakes118.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

f9e1d7d2519ce613a8c5ac3ce9c848d4_JaffaCakes118.exesxtljmy.exe

description	pid	process	target process
PID 2884 wrote to memory of 2736	2884	f9e1d7d2519ce613a8c5ac3ce9c848d4_JaffaCakes118.exe	cmd.exe
PID 2884 wrote to memory of 2736	2884	f9e1d7d2519ce613a8c5ac3ce9c848d4_JaffaCakes118.exe	cmd.exe
PID 2884 wrote to memory of 2736	2884	f9e1d7d2519ce613a8c5ac3ce9c848d4_JaffaCakes118.exe	cmd.exe
PID 2884 wrote to memory of 2736	2884	f9e1d7d2519ce613a8c5ac3ce9c848d4_JaffaCakes118.exe	cmd.exe
PID 2884 wrote to memory of 2888	2884	f9e1d7d2519ce613a8c5ac3ce9c848d4_JaffaCakes118.exe	cmd.exe
PID 2884 wrote to memory of 2888	2884	f9e1d7d2519ce613a8c5ac3ce9c848d4_JaffaCakes118.exe	cmd.exe
PID 2884 wrote to memory of 2888	2884	f9e1d7d2519ce613a8c5ac3ce9c848d4_JaffaCakes118.exe	cmd.exe
PID 2884 wrote to memory of 2888	2884	f9e1d7d2519ce613a8c5ac3ce9c848d4_JaffaCakes118.exe	cmd.exe
PID 2884 wrote to memory of 2624	2884	f9e1d7d2519ce613a8c5ac3ce9c848d4_JaffaCakes118.exe	sc.exe
PID 2884 wrote to memory of 2624	2884	f9e1d7d2519ce613a8c5ac3ce9c848d4_JaffaCakes118.exe	sc.exe
PID 2884 wrote to memory of 2624	2884	f9e1d7d2519ce613a8c5ac3ce9c848d4_JaffaCakes118.exe	sc.exe
PID 2884 wrote to memory of 2624	2884	f9e1d7d2519ce613a8c5ac3ce9c848d4_JaffaCakes118.exe	sc.exe
PID 2884 wrote to memory of 2600	2884	f9e1d7d2519ce613a8c5ac3ce9c848d4_JaffaCakes118.exe	sc.exe
PID 2884 wrote to memory of 2600	2884	f9e1d7d2519ce613a8c5ac3ce9c848d4_JaffaCakes118.exe	sc.exe
PID 2884 wrote to memory of 2600	2884	f9e1d7d2519ce613a8c5ac3ce9c848d4_JaffaCakes118.exe	sc.exe
PID 2884 wrote to memory of 2600	2884	f9e1d7d2519ce613a8c5ac3ce9c848d4_JaffaCakes118.exe	sc.exe
PID 2884 wrote to memory of 2668	2884	f9e1d7d2519ce613a8c5ac3ce9c848d4_JaffaCakes118.exe	sc.exe
PID 2884 wrote to memory of 2668	2884	f9e1d7d2519ce613a8c5ac3ce9c848d4_JaffaCakes118.exe	sc.exe
PID 2884 wrote to memory of 2668	2884	f9e1d7d2519ce613a8c5ac3ce9c848d4_JaffaCakes118.exe	sc.exe
PID 2884 wrote to memory of 2668	2884	f9e1d7d2519ce613a8c5ac3ce9c848d4_JaffaCakes118.exe	sc.exe
PID 2884 wrote to memory of 2456	2884	f9e1d7d2519ce613a8c5ac3ce9c848d4_JaffaCakes118.exe	netsh.exe
PID 2884 wrote to memory of 2456	2884	f9e1d7d2519ce613a8c5ac3ce9c848d4_JaffaCakes118.exe	netsh.exe
PID 2884 wrote to memory of 2456	2884	f9e1d7d2519ce613a8c5ac3ce9c848d4_JaffaCakes118.exe	netsh.exe
PID 2884 wrote to memory of 2456	2884	f9e1d7d2519ce613a8c5ac3ce9c848d4_JaffaCakes118.exe	netsh.exe
PID 2264 wrote to memory of 572	2264	sxtljmy.exe	svchost.exe
PID 2264 wrote to memory of 572	2264	sxtljmy.exe	svchost.exe
PID 2264 wrote to memory of 572	2264	sxtljmy.exe	svchost.exe
PID 2264 wrote to memory of 572	2264	sxtljmy.exe	svchost.exe
PID 2264 wrote to memory of 572	2264	sxtljmy.exe	svchost.exe
PID 2264 wrote to memory of 572	2264	sxtljmy.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\f9e1d7d2519ce613a8c5ac3ce9c848d4_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f9e1d7d2519ce613a8c5ac3ce9c848d4_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2884

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\atqufnsr\
2⤵
- System Location Discovery: System Language Discovery
PID:2736

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\sxtljmy.exe" C:\Windows\SysWOW64\atqufnsr\
2⤵
- System Location Discovery: System Language Discovery
PID:2888

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create atqufnsr binPath= "C:\Windows\SysWOW64\atqufnsr\sxtljmy.exe /d\"C:\Users\Admin\AppData\Local\Temp\f9e1d7d2519ce613a8c5ac3ce9c848d4_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:2624

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description atqufnsr "wifi internet conection"
2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:2600

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start atqufnsr
2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:2668

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:2456

C:\Windows\SysWOW64\atqufnsr\sxtljmy.exe
C:\Windows\SysWOW64\atqufnsr\sxtljmy.exe /d"C:\Users\Admin\AppData\Local\Temp\f9e1d7d2519ce613a8c5ac3ce9c848d4_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2264

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:572

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\sxtljmy.exe

Filesize
14.2MB

MD5
c750444969be35a0f469101e8ae80d30

SHA1
dc12cc21555f0ade51da71b297c285522ce8060e

SHA256
5ee4cc012a6440de79e8729614949d836a031324c84416e777dc4dbed9a3c609

SHA512
089eb03b6df0597d9ce97db407650d476d71a0bff95740d44e29ea1fe2eda6a2bcf2a0d332f19a78c6f5d35d69e5d2b803e550f6b7dff18389ed7c7997074d7d

Download Submit
memory/572-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/572-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/572-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/572-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/572-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2264-16-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2884-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2884-1-0x0000000000540000-0x0000000000640000-memory.dmp

Filesize
1024KB

Download
memory/2884-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2884-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2884-8-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2884-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads