tofsee | 7e7ca783c5533c85910c1ec4341d64ea045889c959ac9d516d58816ef8f42da6

General

Target

02e5c341d567695ae3743ddda4916025_JaffaCakes118.exe
Size

12.0MB
MD5

02e5c341d567695ae3743ddda4916025
SHA1

49acfe7ceba9e5407cf355f7fde0a657b680cdf6
SHA256

7e7ca783c5533c85910c1ec4341d64ea045889c959ac9d516d58816ef8f42da6
SHA512

5d8f9508f57dbf2981a1626908ca0fb21a2ffc37f5f8fe9ee514d472238081c9a58e2ee2111b3682498da1aafec5b6269c7311512c6d5d03266375dde414ae6a
SSDEEP

6144:IuZQ8YhtrDfG08esd3CE9ccB3+molfLyKJ:1Z6DfG080E93u59LzJ

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
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

3812 netsh.exe

pid	process
3812	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\mlimprdb\ImagePath = "C:\\Windows\\SysWOW64\\mlimprdb\\hfpnndmc.exe"	svchost.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

02e5c341d567695ae3743ddda4916025_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	02e5c341d567695ae3743ddda4916025_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

3256 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

hfpnndmc.exe

pid process

224 hfpnndmc.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

hfpnndmc.exe

description pid process target process

PID 224 set thread context of 3256 224 hfpnndmc.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

1404 sc.exe
3484 sc.exe
8 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
3256	svchost.exe

pid	process
224	hfpnndmc.exe

description	pid	process	target process
PID 224 set thread context of 3256	224	hfpnndmc.exe	svchost.exe

pid	process
1404	sc.exe
3484	sc.exe
8	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

Program crash 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid pid_target process target process

4728 1416 WerFault.exe 02e5c341d567695ae3743ddda4916025_JaffaCakes118.exe
4872 224 WerFault.exe hfpnndmc.exe

pid	pid_target	process	target process
4728	1416	WerFault.exe	02e5c341d567695ae3743ddda4916025_JaffaCakes118.exe
4872	224	WerFault.exe	hfpnndmc.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:

02e5c341d567695ae3743ddda4916025_JaffaCakes118.execmd.exesc.exesc.exehfpnndmc.execmd.exesc.exenetsh.exesvchost.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	02e5c341d567695ae3743ddda4916025_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	hfpnndmc.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	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

02e5c341d567695ae3743ddda4916025_JaffaCakes118.exehfpnndmc.exe

description	pid	process	target process
PID 1416 wrote to memory of 5024	1416	02e5c341d567695ae3743ddda4916025_JaffaCakes118.exe	cmd.exe
PID 1416 wrote to memory of 5024	1416	02e5c341d567695ae3743ddda4916025_JaffaCakes118.exe	cmd.exe
PID 1416 wrote to memory of 5024	1416	02e5c341d567695ae3743ddda4916025_JaffaCakes118.exe	cmd.exe
PID 1416 wrote to memory of 2856	1416	02e5c341d567695ae3743ddda4916025_JaffaCakes118.exe	cmd.exe
PID 1416 wrote to memory of 2856	1416	02e5c341d567695ae3743ddda4916025_JaffaCakes118.exe	cmd.exe
PID 1416 wrote to memory of 2856	1416	02e5c341d567695ae3743ddda4916025_JaffaCakes118.exe	cmd.exe
PID 1416 wrote to memory of 8	1416	02e5c341d567695ae3743ddda4916025_JaffaCakes118.exe	sc.exe
PID 1416 wrote to memory of 8	1416	02e5c341d567695ae3743ddda4916025_JaffaCakes118.exe	sc.exe
PID 1416 wrote to memory of 8	1416	02e5c341d567695ae3743ddda4916025_JaffaCakes118.exe	sc.exe
PID 1416 wrote to memory of 1404	1416	02e5c341d567695ae3743ddda4916025_JaffaCakes118.exe	sc.exe
PID 1416 wrote to memory of 1404	1416	02e5c341d567695ae3743ddda4916025_JaffaCakes118.exe	sc.exe
PID 1416 wrote to memory of 1404	1416	02e5c341d567695ae3743ddda4916025_JaffaCakes118.exe	sc.exe
PID 1416 wrote to memory of 3484	1416	02e5c341d567695ae3743ddda4916025_JaffaCakes118.exe	sc.exe
PID 1416 wrote to memory of 3484	1416	02e5c341d567695ae3743ddda4916025_JaffaCakes118.exe	sc.exe
PID 1416 wrote to memory of 3484	1416	02e5c341d567695ae3743ddda4916025_JaffaCakes118.exe	sc.exe
PID 1416 wrote to memory of 3812	1416	02e5c341d567695ae3743ddda4916025_JaffaCakes118.exe	netsh.exe
PID 1416 wrote to memory of 3812	1416	02e5c341d567695ae3743ddda4916025_JaffaCakes118.exe	netsh.exe
PID 1416 wrote to memory of 3812	1416	02e5c341d567695ae3743ddda4916025_JaffaCakes118.exe	netsh.exe
PID 224 wrote to memory of 3256	224	hfpnndmc.exe	svchost.exe
PID 224 wrote to memory of 3256	224	hfpnndmc.exe	svchost.exe
PID 224 wrote to memory of 3256	224	hfpnndmc.exe	svchost.exe
PID 224 wrote to memory of 3256	224	hfpnndmc.exe	svchost.exe
PID 224 wrote to memory of 3256	224	hfpnndmc.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\02e5c341d567695ae3743ddda4916025_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\02e5c341d567695ae3743ddda4916025_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1416
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\mlimprdb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5024
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\hfpnndmc.exe" C:\Windows\SysWOW64\mlimprdb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2856
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create mlimprdb binPath= "C:\Windows\SysWOW64\mlimprdb\hfpnndmc.exe /d\"C:\Users\Admin\AppData\Local\Temp\02e5c341d567695ae3743ddda4916025_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:8
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description mlimprdb "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1404
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start mlimprdb
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3484
- 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:3812
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1416 -s 800
  2⤵
  - Program crash
  PID:4728

C:\Windows\SysWOW64\mlimprdb\hfpnndmc.exe
C:\Windows\SysWOW64\mlimprdb\hfpnndmc.exe /d"C:\Users\Admin\AppData\Local\Temp\02e5c341d567695ae3743ddda4916025_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:224
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3256
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 224 -s 512
  2⤵
  - Program crash
  PID:4872

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 1416 -ip 1416
1⤵
PID:1944

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 224 -ip 224
1⤵
PID:3304

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

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

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\hfpnndmc.exe

Filesize
11.5MB

MD5
fbe0bff8f34073aa451fa99bde915ade

SHA1
cea4ec5fe7b41e30d1c070295a2f0946be82afd9

SHA256
39316b9e31fc9c6277fe2d2a830e0b92b2c69ad991d9faa056ae2455f10ab985

SHA512
8182f3d8ae80e9865463d7be576fd3eb87abe221bcb0f1191b72a5c5ee36fdabb5baaa5dc3e0502b440aeeee65d266f73692e764964cc6fdf2f2d2050be8a738

Download Submit
memory/224-13-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/224-12-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/224-11-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/224-18-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1416-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1416-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/1416-9-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/1416-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1416-8-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1416-1-0x0000000000630000-0x0000000000730000-memory.dmp

Filesize
1024KB

Download
memory/3256-14-0x0000000000C70000-0x0000000000C85000-memory.dmp

Filesize
84KB

Download
memory/3256-16-0x0000000000C70000-0x0000000000C85000-memory.dmp

Filesize
84KB

Download
memory/3256-17-0x0000000000C70000-0x0000000000C85000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads