tofsee | 7e2bf8eb0fd9b0d9b7c4d6ace2338eeea63c86dab7af88bafd8125d5975c1a32

General

Target

3df1d170c4b3e888a2fcb1b85d3b3b32_JaffaCakes118.exe
Size

10.3MB
MD5

3df1d170c4b3e888a2fcb1b85d3b3b32
SHA1

9be13fee01057b0a10dc141afd9f0a5f2137b986
SHA256

7e2bf8eb0fd9b0d9b7c4d6ace2338eeea63c86dab7af88bafd8125d5975c1a32
SHA512

793aa2a5230759cf02b6c84b01f9d278748afa9bd9666573eb6a88ec683a154967afa1efebe2c4af842bf0c82c4ec6a6546aab8921b995a4e80be4c2bceda51a
SSDEEP

49152:8T81MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMw:8T8

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\rfkmmhgm = "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

2768 netsh.exe

pid	process
2768	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\rfkmmhgm\ImagePath = "C:\\Windows\\SysWOW64\\rfkmmhgm\\nwmabpek.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2680 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

nwmabpek.exe

pid process

2944 nwmabpek.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

nwmabpek.exe

description pid process target process

PID 2944 set thread context of 2680 2944 nwmabpek.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

2732 sc.exe
2264 sc.exe
2636 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2680	svchost.exe

pid	process
2944	nwmabpek.exe

description	pid	process	target process
PID 2944 set thread context of 2680	2944	nwmabpek.exe	svchost.exe

pid	process
2732	sc.exe
2264	sc.exe
2636	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:

cmd.exesc.exesc.exenwmabpek.exesvchost.exe3df1d170c4b3e888a2fcb1b85d3b3b32_JaffaCakes118.exesc.exenetsh.execmd.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nwmabpek.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3df1d170c4b3e888a2fcb1b85d3b3b32_JaffaCakes118.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	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

3df1d170c4b3e888a2fcb1b85d3b3b32_JaffaCakes118.exenwmabpek.exe

description	pid	process	target process
PID 2316 wrote to memory of 2744	2316	3df1d170c4b3e888a2fcb1b85d3b3b32_JaffaCakes118.exe	cmd.exe
PID 2316 wrote to memory of 2744	2316	3df1d170c4b3e888a2fcb1b85d3b3b32_JaffaCakes118.exe	cmd.exe
PID 2316 wrote to memory of 2744	2316	3df1d170c4b3e888a2fcb1b85d3b3b32_JaffaCakes118.exe	cmd.exe
PID 2316 wrote to memory of 2744	2316	3df1d170c4b3e888a2fcb1b85d3b3b32_JaffaCakes118.exe	cmd.exe
PID 2316 wrote to memory of 2808	2316	3df1d170c4b3e888a2fcb1b85d3b3b32_JaffaCakes118.exe	cmd.exe
PID 2316 wrote to memory of 2808	2316	3df1d170c4b3e888a2fcb1b85d3b3b32_JaffaCakes118.exe	cmd.exe
PID 2316 wrote to memory of 2808	2316	3df1d170c4b3e888a2fcb1b85d3b3b32_JaffaCakes118.exe	cmd.exe
PID 2316 wrote to memory of 2808	2316	3df1d170c4b3e888a2fcb1b85d3b3b32_JaffaCakes118.exe	cmd.exe
PID 2316 wrote to memory of 2732	2316	3df1d170c4b3e888a2fcb1b85d3b3b32_JaffaCakes118.exe	sc.exe
PID 2316 wrote to memory of 2732	2316	3df1d170c4b3e888a2fcb1b85d3b3b32_JaffaCakes118.exe	sc.exe
PID 2316 wrote to memory of 2732	2316	3df1d170c4b3e888a2fcb1b85d3b3b32_JaffaCakes118.exe	sc.exe
PID 2316 wrote to memory of 2732	2316	3df1d170c4b3e888a2fcb1b85d3b3b32_JaffaCakes118.exe	sc.exe
PID 2316 wrote to memory of 2264	2316	3df1d170c4b3e888a2fcb1b85d3b3b32_JaffaCakes118.exe	sc.exe
PID 2316 wrote to memory of 2264	2316	3df1d170c4b3e888a2fcb1b85d3b3b32_JaffaCakes118.exe	sc.exe
PID 2316 wrote to memory of 2264	2316	3df1d170c4b3e888a2fcb1b85d3b3b32_JaffaCakes118.exe	sc.exe
PID 2316 wrote to memory of 2264	2316	3df1d170c4b3e888a2fcb1b85d3b3b32_JaffaCakes118.exe	sc.exe
PID 2316 wrote to memory of 2636	2316	3df1d170c4b3e888a2fcb1b85d3b3b32_JaffaCakes118.exe	sc.exe
PID 2316 wrote to memory of 2636	2316	3df1d170c4b3e888a2fcb1b85d3b3b32_JaffaCakes118.exe	sc.exe
PID 2316 wrote to memory of 2636	2316	3df1d170c4b3e888a2fcb1b85d3b3b32_JaffaCakes118.exe	sc.exe
PID 2316 wrote to memory of 2636	2316	3df1d170c4b3e888a2fcb1b85d3b3b32_JaffaCakes118.exe	sc.exe
PID 2316 wrote to memory of 2768	2316	3df1d170c4b3e888a2fcb1b85d3b3b32_JaffaCakes118.exe	netsh.exe
PID 2316 wrote to memory of 2768	2316	3df1d170c4b3e888a2fcb1b85d3b3b32_JaffaCakes118.exe	netsh.exe
PID 2316 wrote to memory of 2768	2316	3df1d170c4b3e888a2fcb1b85d3b3b32_JaffaCakes118.exe	netsh.exe
PID 2316 wrote to memory of 2768	2316	3df1d170c4b3e888a2fcb1b85d3b3b32_JaffaCakes118.exe	netsh.exe
PID 2944 wrote to memory of 2680	2944	nwmabpek.exe	svchost.exe
PID 2944 wrote to memory of 2680	2944	nwmabpek.exe	svchost.exe
PID 2944 wrote to memory of 2680	2944	nwmabpek.exe	svchost.exe
PID 2944 wrote to memory of 2680	2944	nwmabpek.exe	svchost.exe
PID 2944 wrote to memory of 2680	2944	nwmabpek.exe	svchost.exe
PID 2944 wrote to memory of 2680	2944	nwmabpek.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\3df1d170c4b3e888a2fcb1b85d3b3b32_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\3df1d170c4b3e888a2fcb1b85d3b3b32_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\rfkmmhgm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2744
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\nwmabpek.exe" C:\Windows\SysWOW64\rfkmmhgm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2808
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create rfkmmhgm binPath= "C:\Windows\SysWOW64\rfkmmhgm\nwmabpek.exe /d\"C:\Users\Admin\AppData\Local\Temp\3df1d170c4b3e888a2fcb1b85d3b3b32_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2732
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description rfkmmhgm "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2264
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start rfkmmhgm
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2636
- 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:2768

C:\Windows\SysWOW64\rfkmmhgm\nwmabpek.exe
C:\Windows\SysWOW64\rfkmmhgm\nwmabpek.exe /d"C:\Users\Admin\AppData\Local\Temp\3df1d170c4b3e888a2fcb1b85d3b3b32_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2944
- 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:2680

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\nwmabpek.exe

Filesize
13.0MB

MD5
88443d88b5196facca6726cb501c3616

SHA1
edc42c46b82686d7b8d17b5e94f4ae1e927590d1

SHA256
7fb78273cf95f52aa6b5117fe75a153ce5e6a47b8e1a50d00a4a1647df060ce3

SHA512
72c3798beefa64c3262c3341af4bcfe7a64dbf6536903ee64e7845d8e30652884cd1ae83257330dd393ed3b6f4d54ab779e94c266858878b0cf4bc40e5538d50

Download Submit
memory/2316-8-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

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/2316-1-0x0000000000550000-0x0000000000650000-memory.dmp

Filesize
1024KB

Download
memory/2680-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2680-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2680-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2680-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2680-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2944-16-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads