tofsee | 3719b22484738b1865755c8a80459d44eb391314565f8b5b568e8b6727d7d97a

General

Target

fb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.exe
Size

10.5MB
MD5

fb337e8710c169d08e14cd2a49e016b8
SHA1

948e1a44363e35a282d0cc14ad336529b8057af9
SHA256

3719b22484738b1865755c8a80459d44eb391314565f8b5b568e8b6727d7d97a
SHA512

c85ef668e4357668c100d6e3a69b2c088a24de2e04c05a98031c4fb638a265d01142b2981d3bc777eebea4f205e66b7fd3352dcbf0e73d3a6bfe7c37750a53b5
SSDEEP

196608:xV8888888888888888888888888888888888888888888888888888888888888Y:b888888888888888888888888888888j

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

3296 netsh.exe

pid	process
3296	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\okwjozve\ImagePath = "C:\\Windows\\SysWOW64\\okwjozve\\wipjouhp.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:

fb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	fb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2676 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

wipjouhp.exe

pid process

4256 wipjouhp.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

wipjouhp.exe

description pid process target process

PID 4256 set thread context of 2676 4256 wipjouhp.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

3800 sc.exe
4696 sc.exe
1488 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2676	svchost.exe

pid	process
4256	wipjouhp.exe

description	pid	process	target process
PID 4256 set thread context of 2676	4256	wipjouhp.exe	svchost.exe

pid	process
3800	sc.exe
4696	sc.exe
1488	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

Program crash 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid pid_target process target process

4012 1884 WerFault.exe fb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.exe
4940 4256 WerFault.exe wipjouhp.exe

pid	pid_target	process	target process
4012	1884	WerFault.exe	fb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.exe
4940	4256	WerFault.exe	wipjouhp.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:

netsh.exewipjouhp.exesvchost.execmd.exesc.exesc.exefb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.execmd.exesc.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wipjouhp.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

fb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.exewipjouhp.exe

description	pid	process	target process
PID 1884 wrote to memory of 1044	1884	fb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.exe	cmd.exe
PID 1884 wrote to memory of 1044	1884	fb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.exe	cmd.exe
PID 1884 wrote to memory of 1044	1884	fb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.exe	cmd.exe
PID 1884 wrote to memory of 1652	1884	fb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.exe	cmd.exe
PID 1884 wrote to memory of 1652	1884	fb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.exe	cmd.exe
PID 1884 wrote to memory of 1652	1884	fb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.exe	cmd.exe
PID 1884 wrote to memory of 4696	1884	fb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.exe	sc.exe
PID 1884 wrote to memory of 4696	1884	fb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.exe	sc.exe
PID 1884 wrote to memory of 4696	1884	fb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.exe	sc.exe
PID 1884 wrote to memory of 1488	1884	fb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.exe	sc.exe
PID 1884 wrote to memory of 1488	1884	fb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.exe	sc.exe
PID 1884 wrote to memory of 1488	1884	fb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.exe	sc.exe
PID 1884 wrote to memory of 3800	1884	fb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.exe	sc.exe
PID 1884 wrote to memory of 3800	1884	fb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.exe	sc.exe
PID 1884 wrote to memory of 3800	1884	fb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.exe	sc.exe
PID 1884 wrote to memory of 3296	1884	fb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.exe	netsh.exe
PID 1884 wrote to memory of 3296	1884	fb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.exe	netsh.exe
PID 1884 wrote to memory of 3296	1884	fb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.exe	netsh.exe
PID 4256 wrote to memory of 2676	4256	wipjouhp.exe	svchost.exe
PID 4256 wrote to memory of 2676	4256	wipjouhp.exe	svchost.exe
PID 4256 wrote to memory of 2676	4256	wipjouhp.exe	svchost.exe
PID 4256 wrote to memory of 2676	4256	wipjouhp.exe	svchost.exe
PID 4256 wrote to memory of 2676	4256	wipjouhp.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\fb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1884
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\okwjozve\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1044
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\wipjouhp.exe" C:\Windows\SysWOW64\okwjozve\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1652
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create okwjozve binPath= "C:\Windows\SysWOW64\okwjozve\wipjouhp.exe /d\"C:\Users\Admin\AppData\Local\Temp\fb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4696
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description okwjozve "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1488
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start okwjozve
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3800
- 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:3296
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1884 -s 1036
  2⤵
  - Program crash
  PID:4012

C:\Windows\SysWOW64\okwjozve\wipjouhp.exe
C:\Windows\SysWOW64\okwjozve\wipjouhp.exe /d"C:\Users\Admin\AppData\Local\Temp\fb337e8710c169d08e14cd2a49e016b8_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4256
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2676
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4256 -s 520
  2⤵
  - Program crash
  PID:4940

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1884 -ip 1884
1⤵
PID:1128

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4256 -ip 4256
1⤵
PID:3880

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\wipjouhp.exe

Filesize
13.6MB

MD5
fb876da837f79bcea466769bcfce1752

SHA1
18256eaa7b1792db91cecb2f041daee59ccef300

SHA256
bdf6f1f56741890df3bb3d2a78b50dfeb05f79caec55e3603e713eab6070f2a2

SHA512
85cf4c002ed00c57001a2b7e2e78e66d1be8e8cae4348915b2bfa3bbd25a4f341a817c9a40e668fbdfe58b109533545260b34711811ae0fc3cac98cd5d8d4358

Download Submit
memory/1884-8-0x0000000000400000-0x0000000000459000-memory.dmp

Filesize
356KB

Download
memory/1884-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1884-2-0x00000000001D0000-0x00000000001E3000-memory.dmp

Filesize
76KB

Download
memory/1884-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1884-9-0x00000000001D0000-0x00000000001E3000-memory.dmp

Filesize
76KB

Download
memory/1884-1-0x0000000000570000-0x0000000000670000-memory.dmp

Filesize
1024KB

Download
memory/2676-14-0x0000000001090000-0x00000000010A5000-memory.dmp

Filesize
84KB

Download
memory/2676-16-0x0000000001090000-0x00000000010A5000-memory.dmp

Filesize
84KB

Download
memory/2676-17-0x0000000001090000-0x00000000010A5000-memory.dmp

Filesize
84KB

Download
memory/4256-12-0x0000000000400000-0x0000000000459000-memory.dmp

Filesize
356KB

Download
memory/4256-11-0x0000000000400000-0x0000000000459000-memory.dmp

Filesize
356KB

Download
memory/4256-13-0x0000000000400000-0x0000000000459000-memory.dmp

Filesize
356KB

Download
memory/4256-19-0x0000000000400000-0x0000000000459000-memory.dmp

Filesize
356KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads