tofsee | 150e8e8c9dd4a66d7ee2fbb001f946d6c1f6675bfacc324e9aaf3c1b8e65c662

General

Target

a6502d7e3a37ab4678e7146020cf7c12_JaffaCakes118.exe
Size

11.6MB
MD5

a6502d7e3a37ab4678e7146020cf7c12
SHA1

798ba72a4fd5ccf2994bb7824afeed719a1dd1f7
SHA256

150e8e8c9dd4a66d7ee2fbb001f946d6c1f6675bfacc324e9aaf3c1b8e65c662
SHA512

65b224a8c6669a7dab9b46f3892efd104f018a091e9a90336c45b0b3f51fc6924017a594c022a24c7dcbea2ffc9cbd00f393e92abeb2dd8ab3f08e86d5d4cbd0
SSDEEP

196608:RrhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhB:hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhH

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

pid	Process
3932	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\pfianpuc\ImagePath = "C:\\Windows\\SysWOW64\\pfianpuc\\wiuccnck.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-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation	a6502d7e3a37ab4678e7146020cf7c12_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
2388	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2548	wiuccnck.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2548 set thread context of 2388	2548	wiuccnck.exe	107

Launches sc.exe 3 IoCs

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

pid	Process
1924	sc.exe
668	sc.exe
3916	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
4896	3304	WerFault.exe	83
1252	2548	WerFault.exe	101

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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a6502d7e3a37ab4678e7146020cf7c12_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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wiuccnck.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3304 wrote to memory of 4500	3304	a6502d7e3a37ab4678e7146020cf7c12_JaffaCakes118.exe	87
PID 3304 wrote to memory of 4500	3304	a6502d7e3a37ab4678e7146020cf7c12_JaffaCakes118.exe	87
PID 3304 wrote to memory of 4500	3304	a6502d7e3a37ab4678e7146020cf7c12_JaffaCakes118.exe	87
PID 3304 wrote to memory of 4352	3304	a6502d7e3a37ab4678e7146020cf7c12_JaffaCakes118.exe	91
PID 3304 wrote to memory of 4352	3304	a6502d7e3a37ab4678e7146020cf7c12_JaffaCakes118.exe	91
PID 3304 wrote to memory of 4352	3304	a6502d7e3a37ab4678e7146020cf7c12_JaffaCakes118.exe	91
PID 3304 wrote to memory of 668	3304	a6502d7e3a37ab4678e7146020cf7c12_JaffaCakes118.exe	93
PID 3304 wrote to memory of 668	3304	a6502d7e3a37ab4678e7146020cf7c12_JaffaCakes118.exe	93
PID 3304 wrote to memory of 668	3304	a6502d7e3a37ab4678e7146020cf7c12_JaffaCakes118.exe	93
PID 3304 wrote to memory of 3916	3304	a6502d7e3a37ab4678e7146020cf7c12_JaffaCakes118.exe	97
PID 3304 wrote to memory of 3916	3304	a6502d7e3a37ab4678e7146020cf7c12_JaffaCakes118.exe	97
PID 3304 wrote to memory of 3916	3304	a6502d7e3a37ab4678e7146020cf7c12_JaffaCakes118.exe	97
PID 3304 wrote to memory of 1924	3304	a6502d7e3a37ab4678e7146020cf7c12_JaffaCakes118.exe	99
PID 3304 wrote to memory of 1924	3304	a6502d7e3a37ab4678e7146020cf7c12_JaffaCakes118.exe	99
PID 3304 wrote to memory of 1924	3304	a6502d7e3a37ab4678e7146020cf7c12_JaffaCakes118.exe	99
PID 3304 wrote to memory of 3932	3304	a6502d7e3a37ab4678e7146020cf7c12_JaffaCakes118.exe	102
PID 3304 wrote to memory of 3932	3304	a6502d7e3a37ab4678e7146020cf7c12_JaffaCakes118.exe	102
PID 3304 wrote to memory of 3932	3304	a6502d7e3a37ab4678e7146020cf7c12_JaffaCakes118.exe	102
PID 2548 wrote to memory of 2388	2548	wiuccnck.exe	107
PID 2548 wrote to memory of 2388	2548	wiuccnck.exe	107
PID 2548 wrote to memory of 2388	2548	wiuccnck.exe	107
PID 2548 wrote to memory of 2388	2548	wiuccnck.exe	107
PID 2548 wrote to memory of 2388	2548	wiuccnck.exe	107

C:\Users\Admin\AppData\Local\Temp\a6502d7e3a37ab4678e7146020cf7c12_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a6502d7e3a37ab4678e7146020cf7c12_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3304
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\pfianpuc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4500
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\wiuccnck.exe" C:\Windows\SysWOW64\pfianpuc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4352
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create pfianpuc binPath= "C:\Windows\SysWOW64\pfianpuc\wiuccnck.exe /d\"C:\Users\Admin\AppData\Local\Temp\a6502d7e3a37ab4678e7146020cf7c12_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:668
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description pfianpuc "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3916
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start pfianpuc
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1924
- 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:3932
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3304 -s 1184
  2⤵
  - Program crash
  PID:4896

C:\Windows\SysWOW64\pfianpuc\wiuccnck.exe
C:\Windows\SysWOW64\pfianpuc\wiuccnck.exe /d"C:\Users\Admin\AppData\Local\Temp\a6502d7e3a37ab4678e7146020cf7c12_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2548
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2388
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2548 -s 560
  2⤵
  - Program crash
  PID:1252

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3304 -ip 3304
1⤵
PID:3000

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 2548 -ip 2548
1⤵
PID:1272

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\wiuccnck.exe

Filesize
14.3MB

MD5
6e5bb555858d86ef8ee0383d53a1fa75

SHA1
ab9b4ba28f1f7f9c2e2d7eb6aa1331e55c6d43c8

SHA256
1748117d8d160a902d3f35e9c7ad80e86d9fd3da1a17dd575f3f26a134330f99

SHA512
ebacadc37de3bd3be07be4a118888a81bc1aab2d8b03d434642bac596bb34d87bfd20f2920362295ba6d3cb6fef5e69d5b6b93f80d6683c922bcf26302b42864

Download Submit
memory/2388-14-0x0000000000AB0000-0x0000000000AC5000-memory.dmp

Filesize
84KB

Download
memory/2388-17-0x0000000000AB0000-0x0000000000AC5000-memory.dmp

Filesize
84KB

Download
memory/2388-16-0x0000000000AB0000-0x0000000000AC5000-memory.dmp

Filesize
84KB

Download
memory/2548-13-0x0000000000400000-0x0000000000459000-memory.dmp

Filesize
356KB

Download
memory/2548-12-0x0000000000400000-0x0000000000459000-memory.dmp

Filesize
356KB

Download
memory/2548-11-0x0000000000400000-0x0000000000459000-memory.dmp

Filesize
356KB

Download
memory/2548-18-0x0000000000400000-0x0000000000459000-memory.dmp

Filesize
356KB

Download
memory/3304-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3304-8-0x0000000000400000-0x0000000000459000-memory.dmp

Filesize
356KB

Download
memory/3304-1-0x0000000000710000-0x0000000000810000-memory.dmp

Filesize
1024KB

Download
memory/3304-9-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/3304-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3304-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads