tofsee | cee4a877da71cd3d838f2f424d4c53c696eb3a0485fef0c31bd37e033cd3ceb3

General

Target

0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exe
Size

168KB
MD5

0653cbfb8de2166a48ef0b6c0d3b48ca
SHA1

69bac9fae0be9acb4b867c41b30bd4a76f8a7203
SHA256

cee4a877da71cd3d838f2f424d4c53c696eb3a0485fef0c31bd37e033cd3ceb3
SHA512

518843e08379f094c01617c214dc7d2a195aefda9c4fc065ea2c098a89ee7f080ddfe984a62b7eb0d2a75af7991cbfd6b7678860b1996f6d10bdc98b2c67dec8
SSDEEP

3072:odrkBHPRPZwriqxN+GVd8475x42WCJ/t4:JPRPZwriIxl7Z

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\sejhwwem = "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

2716 netsh.exe

pid	process
2716	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\sejhwwem\ImagePath = "C:\\Windows\\SysWOW64\\sejhwwem\\jdzfqasy.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2276 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

jdzfqasy.exe

pid process

2768 jdzfqasy.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

jdzfqasy.exe

description pid process target process

PID 2768 set thread context of 2276 2768 jdzfqasy.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

3004 sc.exe
2844 sc.exe
2624 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2276	svchost.exe

pid	process
2768	jdzfqasy.exe

description	pid	process	target process
PID 2768 set thread context of 2276	2768	jdzfqasy.exe	svchost.exe

pid	process
3004	sc.exe
2844	sc.exe
2624	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.exesc.exesvchost.execmd.exesc.exenetsh.exejdzfqasy.exe0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.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	sc.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jdzfqasy.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exejdzfqasy.exe

description	pid	process	target process
PID 2316 wrote to memory of 2564	2316	0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exe	cmd.exe
PID 2316 wrote to memory of 2564	2316	0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exe	cmd.exe
PID 2316 wrote to memory of 2564	2316	0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exe	cmd.exe
PID 2316 wrote to memory of 2564	2316	0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exe	cmd.exe
PID 2316 wrote to memory of 2820	2316	0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exe	cmd.exe
PID 2316 wrote to memory of 2820	2316	0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exe	cmd.exe
PID 2316 wrote to memory of 2820	2316	0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exe	cmd.exe
PID 2316 wrote to memory of 2820	2316	0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exe	cmd.exe
PID 2316 wrote to memory of 3004	2316	0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exe	sc.exe
PID 2316 wrote to memory of 3004	2316	0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exe	sc.exe
PID 2316 wrote to memory of 3004	2316	0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exe	sc.exe
PID 2316 wrote to memory of 3004	2316	0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exe	sc.exe
PID 2316 wrote to memory of 2844	2316	0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exe	sc.exe
PID 2316 wrote to memory of 2844	2316	0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exe	sc.exe
PID 2316 wrote to memory of 2844	2316	0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exe	sc.exe
PID 2316 wrote to memory of 2844	2316	0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exe	sc.exe
PID 2316 wrote to memory of 2624	2316	0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exe	sc.exe
PID 2316 wrote to memory of 2624	2316	0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exe	sc.exe
PID 2316 wrote to memory of 2624	2316	0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exe	sc.exe
PID 2316 wrote to memory of 2624	2316	0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exe	sc.exe
PID 2316 wrote to memory of 2716	2316	0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exe	netsh.exe
PID 2316 wrote to memory of 2716	2316	0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exe	netsh.exe
PID 2316 wrote to memory of 2716	2316	0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exe	netsh.exe
PID 2316 wrote to memory of 2716	2316	0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exe	netsh.exe
PID 2768 wrote to memory of 2276	2768	jdzfqasy.exe	svchost.exe
PID 2768 wrote to memory of 2276	2768	jdzfqasy.exe	svchost.exe
PID 2768 wrote to memory of 2276	2768	jdzfqasy.exe	svchost.exe
PID 2768 wrote to memory of 2276	2768	jdzfqasy.exe	svchost.exe
PID 2768 wrote to memory of 2276	2768	jdzfqasy.exe	svchost.exe
PID 2768 wrote to memory of 2276	2768	jdzfqasy.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2316
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\sejhwwem\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2564
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jdzfqasy.exe" C:\Windows\SysWOW64\sejhwwem\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2820
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create sejhwwem binPath= "C:\Windows\SysWOW64\sejhwwem\jdzfqasy.exe /d\"C:\Users\Admin\AppData\Local\Temp\0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3004
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description sejhwwem "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2844
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start sejhwwem
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2624
- 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:2716

C:\Windows\SysWOW64\sejhwwem\jdzfqasy.exe
C:\Windows\SysWOW64\sejhwwem\jdzfqasy.exe /d"C:\Users\Admin\AppData\Local\Temp\0653cbfb8de2166a48ef0b6c0d3b48ca_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2768
- 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:2276

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\jdzfqasy.exe

Filesize
12.0MB

MD5
e4603a354ebb4735de9c75e0d84e403f

SHA1
4a6b3564d0e6ebb7668db02b678294baaaf0f5bc

SHA256
47f9fc9a2edcd7fd5b67244d181f30d93ba3f442ba0efc333fc0c6099538d95d

SHA512
d31ab87264fa253e18c52745f957b23fa2b295575f4f58f9c3891bc0bd5b39cabe8c5d19ee9bbb2ae593753523e7cb621f9c9777608f91096feaffe6d7e0abf8

Download Submit
memory/2276-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2276-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2276-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2276-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2276-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2316-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2316-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2316-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2316-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2316-8-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2316-1-0x0000000000660000-0x0000000000760000-memory.dmp

Filesize
1024KB

Download
memory/2768-17-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads