tofsee | fd14ab99b55fcea1192cc29f821fb3a98ca553e337501e63a7cb60d345747e41

General

Target

JaffaCakes118_fd14ab99b55fcea1192cc29f821fb3a98ca553e337501e63a7cb60d345747e41.exe
Size

287KB
MD5

dd7144f014d58bf5de980c0476d61dd3
SHA1

c6d2f048115642dff1dbc44d23f8474151120457
SHA256

fd14ab99b55fcea1192cc29f821fb3a98ca553e337501e63a7cb60d345747e41
SHA512

d39aaaa2f8f478c3c9d16f0600d28f4b593f2efceb597656285a26d8332ffe1babfff2a4704a1ea9839ceb88ec821f5ff9fdaee259668e2bc7a3b6c6c5538789
SSDEEP

3072:mJZLEYc2tTaOjoQkzlzBFsfTnu0ay/MCYbCD+1G4mkl0zXi9qZwWLnrYKopn1m5J:m/LEsaOjoflzbwTRhD6fljqyWDsR

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
2728	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\nwupatok\ImagePath = "C:\\Windows\\SysWOW64\\nwupatok\\fibjhjrb.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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	JaffaCakes118_fd14ab99b55fcea1192cc29f821fb3a98ca553e337501e63a7cb60d345747e41.exe

Deletes itself 1 IoCs

pid	Process
5104	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2536	fibjhjrb.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2536 set thread context of 5104	2536	fibjhjrb.exe	100

Launches sc.exe 3 IoCs

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

pid	Process
3960	sc.exe
2380	sc.exe
4612	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 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

pid	pid_target	Process	procid_target
2168	5084	WerFault.exe	82
1580	2536	WerFault.exe	93

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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_fd14ab99b55fcea1192cc29f821fb3a98ca553e337501e63a7cb60d345747e41.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fibjhjrb.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	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 5084 wrote to memory of 2716	5084	JaffaCakes118_fd14ab99b55fcea1192cc29f821fb3a98ca553e337501e63a7cb60d345747e41.exe	83
PID 5084 wrote to memory of 2716	5084	JaffaCakes118_fd14ab99b55fcea1192cc29f821fb3a98ca553e337501e63a7cb60d345747e41.exe	83
PID 5084 wrote to memory of 2716	5084	JaffaCakes118_fd14ab99b55fcea1192cc29f821fb3a98ca553e337501e63a7cb60d345747e41.exe	83
PID 5084 wrote to memory of 3848	5084	JaffaCakes118_fd14ab99b55fcea1192cc29f821fb3a98ca553e337501e63a7cb60d345747e41.exe	85
PID 5084 wrote to memory of 3848	5084	JaffaCakes118_fd14ab99b55fcea1192cc29f821fb3a98ca553e337501e63a7cb60d345747e41.exe	85
PID 5084 wrote to memory of 3848	5084	JaffaCakes118_fd14ab99b55fcea1192cc29f821fb3a98ca553e337501e63a7cb60d345747e41.exe	85
PID 5084 wrote to memory of 3960	5084	JaffaCakes118_fd14ab99b55fcea1192cc29f821fb3a98ca553e337501e63a7cb60d345747e41.exe	87
PID 5084 wrote to memory of 3960	5084	JaffaCakes118_fd14ab99b55fcea1192cc29f821fb3a98ca553e337501e63a7cb60d345747e41.exe	87
PID 5084 wrote to memory of 3960	5084	JaffaCakes118_fd14ab99b55fcea1192cc29f821fb3a98ca553e337501e63a7cb60d345747e41.exe	87
PID 5084 wrote to memory of 2380	5084	JaffaCakes118_fd14ab99b55fcea1192cc29f821fb3a98ca553e337501e63a7cb60d345747e41.exe	89
PID 5084 wrote to memory of 2380	5084	JaffaCakes118_fd14ab99b55fcea1192cc29f821fb3a98ca553e337501e63a7cb60d345747e41.exe	89
PID 5084 wrote to memory of 2380	5084	JaffaCakes118_fd14ab99b55fcea1192cc29f821fb3a98ca553e337501e63a7cb60d345747e41.exe	89
PID 5084 wrote to memory of 4612	5084	JaffaCakes118_fd14ab99b55fcea1192cc29f821fb3a98ca553e337501e63a7cb60d345747e41.exe	91
PID 5084 wrote to memory of 4612	5084	JaffaCakes118_fd14ab99b55fcea1192cc29f821fb3a98ca553e337501e63a7cb60d345747e41.exe	91
PID 5084 wrote to memory of 4612	5084	JaffaCakes118_fd14ab99b55fcea1192cc29f821fb3a98ca553e337501e63a7cb60d345747e41.exe	91
PID 5084 wrote to memory of 2728	5084	JaffaCakes118_fd14ab99b55fcea1192cc29f821fb3a98ca553e337501e63a7cb60d345747e41.exe	94
PID 5084 wrote to memory of 2728	5084	JaffaCakes118_fd14ab99b55fcea1192cc29f821fb3a98ca553e337501e63a7cb60d345747e41.exe	94
PID 5084 wrote to memory of 2728	5084	JaffaCakes118_fd14ab99b55fcea1192cc29f821fb3a98ca553e337501e63a7cb60d345747e41.exe	94
PID 2536 wrote to memory of 5104	2536	fibjhjrb.exe	100
PID 2536 wrote to memory of 5104	2536	fibjhjrb.exe	100
PID 2536 wrote to memory of 5104	2536	fibjhjrb.exe	100
PID 2536 wrote to memory of 5104	2536	fibjhjrb.exe	100
PID 2536 wrote to memory of 5104	2536	fibjhjrb.exe	100

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_fd14ab99b55fcea1192cc29f821fb3a98ca553e337501e63a7cb60d345747e41.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_fd14ab99b55fcea1192cc29f821fb3a98ca553e337501e63a7cb60d345747e41.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5084
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\nwupatok\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2716
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\fibjhjrb.exe" C:\Windows\SysWOW64\nwupatok\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3848
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create nwupatok binPath= "C:\Windows\SysWOW64\nwupatok\fibjhjrb.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_fd14ab99b55fcea1192cc29f821fb3a98ca553e337501e63a7cb60d345747e41.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3960
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description nwupatok "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2380
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start nwupatok
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4612
- 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:2728
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5084 -s 660
  2⤵
  - Program crash
  PID:2168

C:\Windows\SysWOW64\nwupatok\fibjhjrb.exe
C:\Windows\SysWOW64\nwupatok\fibjhjrb.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_fd14ab99b55fcea1192cc29f821fb3a98ca553e337501e63a7cb60d345747e41.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2536
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:5104
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2536 -s 512
  2⤵
  - Program crash
  PID:1580

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 5084 -ip 5084
1⤵
PID:5076

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 2536 -ip 2536
1⤵
PID:1572

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\fibjhjrb.exe

Filesize
11.6MB

MD5
f444356599297b4ee266ef1e162516ad

SHA1
0abe6ebf881978d7a4235c4ccbd4bf1b869a674c

SHA256
9f59e3c68bdac5ad5eb0ae666d0af334896e526c6f1c6ff276cc6c0f4c59b1ac

SHA512
addf3578df8dee41b0b14ea0b880ca6b8998e3a9c011facf1679cb93f487a4c1fc54f5518517bb345d19e4d30e6ba7da84ada7e5ac08281d76b28a67ff836931

Download Submit
memory/2536-15-0x0000000000400000-0x0000000002B91000-memory.dmp

Filesize
39.6MB

Download
memory/5084-1-0x0000000002F40000-0x0000000003040000-memory.dmp

Filesize
1024KB

Download
memory/5084-2-0x00000000001E0000-0x00000000001F3000-memory.dmp

Filesize
76KB

Download
memory/5084-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/5084-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/5084-9-0x00000000001E0000-0x00000000001F3000-memory.dmp

Filesize
76KB

Download
memory/5084-8-0x0000000000400000-0x0000000002B91000-memory.dmp

Filesize
39.6MB

Download
memory/5104-11-0x0000000000B80000-0x0000000000B95000-memory.dmp

Filesize
84KB

Download
memory/5104-13-0x0000000000B80000-0x0000000000B95000-memory.dmp

Filesize
84KB

Download
memory/5104-14-0x0000000000B80000-0x0000000000B95000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads