tofsee | 0003316589f3abf4ca7e307a0ec2527965aa117c90defb7125946ebd926886ef

General

Target

JaffaCakes118_0003316589f3abf4ca7e307a0ec2527965aa117c90defb7125946ebd926886ef.exe
Size

241KB
MD5

c6475e59ef21c4a191d2b0e3b5429960
SHA1

c446c37461d9ac0c6d5ae79fe1c49e1d2584a81e
SHA256

0003316589f3abf4ca7e307a0ec2527965aa117c90defb7125946ebd926886ef
SHA512

c6e26c47dcf7f395058f86e62d5a7e8aae7a6fb87bf9e2feac8dd06927d25a69f68fbd71ffd965a8793dfeac65cd1824c4989cc0349594355ea207143ebf16c5
SSDEEP

3072:c0GecS6S0PvgenevzaHWgtnu7F0kKUyo53YPwkQdaFg6JectfLMdB16NK1rnk:Ke7EQenCWHHnu1JYPR7FPJesfQf0U1

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
Tofsee family
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

pid	Process
2596	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\fbhtvwct\ImagePath = "C:\\Windows\\SysWOW64\\fbhtvwct\\pwiversm.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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	JaffaCakes118_0003316589f3abf4ca7e307a0ec2527965aa117c90defb7125946ebd926886ef.exe

Deletes itself 1 IoCs

pid	Process
232	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1676	pwiversm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1676 set thread context of 232	1676	pwiversm.exe	101

Launches sc.exe 3 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
1020	sc.exe
1716	sc.exe
3540	sc.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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

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

pid	pid_target	Process	procid_target
4564	3148	WerFault.exe	82
224	1676	WerFault.exe	94

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

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	pwiversm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_0003316589f3abf4ca7e307a0ec2527965aa117c90defb7125946ebd926886ef.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3148 wrote to memory of 4940	3148	JaffaCakes118_0003316589f3abf4ca7e307a0ec2527965aa117c90defb7125946ebd926886ef.exe	83
PID 3148 wrote to memory of 4940	3148	JaffaCakes118_0003316589f3abf4ca7e307a0ec2527965aa117c90defb7125946ebd926886ef.exe	83
PID 3148 wrote to memory of 4940	3148	JaffaCakes118_0003316589f3abf4ca7e307a0ec2527965aa117c90defb7125946ebd926886ef.exe	83
PID 3148 wrote to memory of 4924	3148	JaffaCakes118_0003316589f3abf4ca7e307a0ec2527965aa117c90defb7125946ebd926886ef.exe	85
PID 3148 wrote to memory of 4924	3148	JaffaCakes118_0003316589f3abf4ca7e307a0ec2527965aa117c90defb7125946ebd926886ef.exe	85
PID 3148 wrote to memory of 4924	3148	JaffaCakes118_0003316589f3abf4ca7e307a0ec2527965aa117c90defb7125946ebd926886ef.exe	85
PID 3148 wrote to memory of 1020	3148	JaffaCakes118_0003316589f3abf4ca7e307a0ec2527965aa117c90defb7125946ebd926886ef.exe	87
PID 3148 wrote to memory of 1020	3148	JaffaCakes118_0003316589f3abf4ca7e307a0ec2527965aa117c90defb7125946ebd926886ef.exe	87
PID 3148 wrote to memory of 1020	3148	JaffaCakes118_0003316589f3abf4ca7e307a0ec2527965aa117c90defb7125946ebd926886ef.exe	87
PID 3148 wrote to memory of 1716	3148	JaffaCakes118_0003316589f3abf4ca7e307a0ec2527965aa117c90defb7125946ebd926886ef.exe	89
PID 3148 wrote to memory of 1716	3148	JaffaCakes118_0003316589f3abf4ca7e307a0ec2527965aa117c90defb7125946ebd926886ef.exe	89
PID 3148 wrote to memory of 1716	3148	JaffaCakes118_0003316589f3abf4ca7e307a0ec2527965aa117c90defb7125946ebd926886ef.exe	89
PID 3148 wrote to memory of 3540	3148	JaffaCakes118_0003316589f3abf4ca7e307a0ec2527965aa117c90defb7125946ebd926886ef.exe	92
PID 3148 wrote to memory of 3540	3148	JaffaCakes118_0003316589f3abf4ca7e307a0ec2527965aa117c90defb7125946ebd926886ef.exe	92
PID 3148 wrote to memory of 3540	3148	JaffaCakes118_0003316589f3abf4ca7e307a0ec2527965aa117c90defb7125946ebd926886ef.exe	92
PID 3148 wrote to memory of 2596	3148	JaffaCakes118_0003316589f3abf4ca7e307a0ec2527965aa117c90defb7125946ebd926886ef.exe	95
PID 3148 wrote to memory of 2596	3148	JaffaCakes118_0003316589f3abf4ca7e307a0ec2527965aa117c90defb7125946ebd926886ef.exe	95
PID 3148 wrote to memory of 2596	3148	JaffaCakes118_0003316589f3abf4ca7e307a0ec2527965aa117c90defb7125946ebd926886ef.exe	95
PID 1676 wrote to memory of 232	1676	pwiversm.exe	101
PID 1676 wrote to memory of 232	1676	pwiversm.exe	101
PID 1676 wrote to memory of 232	1676	pwiversm.exe	101
PID 1676 wrote to memory of 232	1676	pwiversm.exe	101
PID 1676 wrote to memory of 232	1676	pwiversm.exe	101

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0003316589f3abf4ca7e307a0ec2527965aa117c90defb7125946ebd926886ef.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0003316589f3abf4ca7e307a0ec2527965aa117c90defb7125946ebd926886ef.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3148
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\fbhtvwct\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4940
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\pwiversm.exe" C:\Windows\SysWOW64\fbhtvwct\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4924
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create fbhtvwct binPath= "C:\Windows\SysWOW64\fbhtvwct\pwiversm.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0003316589f3abf4ca7e307a0ec2527965aa117c90defb7125946ebd926886ef.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1020
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description fbhtvwct "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1716
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start fbhtvwct
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3540
- 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:2596
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3148 -s 1044
  2⤵
  - Program crash
  PID:4564

C:\Windows\SysWOW64\fbhtvwct\pwiversm.exe
C:\Windows\SysWOW64\fbhtvwct\pwiversm.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0003316589f3abf4ca7e307a0ec2527965aa117c90defb7125946ebd926886ef.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1676
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:232
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1676 -s 520
  2⤵
  - Program crash
  PID:224

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 3148 -ip 3148
1⤵
PID:4644

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 1676 -ip 1676
1⤵
PID:764

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\pwiversm.exe

Filesize
13.0MB

MD5
6523c01a73e24aa5d59850cabd9a4b13

SHA1
b4849951e755e8a6721a98368608813661d11b06

SHA256
ed245f0146d6fb581967f9a8f85bb4fde7274f5643ddcbd57c8a6a9bc312f1d6

SHA512
66bc768a286daba02296f8f8547e9119545610879e3a6feca6d12b7ca6297a3332b8899998269a19c7cf794e193049f464d906aa8819db274305ee780154af54

Download Submit
memory/232-13-0x0000000000920000-0x0000000000935000-memory.dmp

Filesize
84KB

Download
memory/232-16-0x0000000000920000-0x0000000000935000-memory.dmp

Filesize
84KB

Download
memory/232-15-0x0000000000920000-0x0000000000935000-memory.dmp

Filesize
84KB

Download
memory/1676-11-0x0000000000400000-0x000000000086C000-memory.dmp

Filesize
4.4MB

Download
memory/1676-12-0x0000000000400000-0x000000000086C000-memory.dmp

Filesize
4.4MB

Download
memory/1676-18-0x0000000000400000-0x000000000086C000-memory.dmp

Filesize
4.4MB

Download
memory/3148-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3148-9-0x0000000000AC0000-0x0000000000AD3000-memory.dmp

Filesize
76KB

Download
memory/3148-8-0x0000000000400000-0x000000000086C000-memory.dmp

Filesize
4.4MB

Download
memory/3148-1-0x0000000000B10000-0x0000000000C10000-memory.dmp

Filesize
1024KB

Download
memory/3148-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3148-2-0x0000000000AC0000-0x0000000000AD3000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads