tofsee | 63f81f8264b1f8339dd8f9d6403bcd6a36f4f84a88cc6318022654acc01a01de

General

Target

JaffaCakes118_63f81f8264b1f8339dd8f9d6403bcd6a36f4f84a88cc6318022654acc01a01de.exe
Size

184KB
MD5

3db9deb4da0c2e98f67b21a01da5798a
SHA1

0bab4573d5568dcbf457beaa2c9aa1cb086da533
SHA256

63f81f8264b1f8339dd8f9d6403bcd6a36f4f84a88cc6318022654acc01a01de
SHA512

577f24934aea433fd08313e01b76fb97015c57c3b7a7e56ff6259ce90f7360c44f6e508f3e3813dbd1f28bb29eeec6fa3bba3ae7a35306bc2001d32ad9999555
SSDEEP

3072:sVmEokfyWvwFtJ6Y9A+MNtr0phGheXMWhsHPZPwg9IlAP4MAhgC:slokaWvYqtltYjqeXM2oPF+l88

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
3156	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\dbdqmfwr\ImagePath = "C:\\Windows\\SysWOW64\\dbdqmfwr\\tfrzzkzh.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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	JaffaCakes118_63f81f8264b1f8339dd8f9d6403bcd6a36f4f84a88cc6318022654acc01a01de.exe

Deletes itself 1 IoCs

pid	Process
1668	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4800	tfrzzkzh.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4800 set thread context of 1668	4800	tfrzzkzh.exe	105

Launches sc.exe 3 IoCs

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

pid	Process
3328	sc.exe
3040	sc.exe
5080	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1636	2304	WerFault.exe	84
2168	4800	WerFault.exe	96

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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_63f81f8264b1f8339dd8f9d6403bcd6a36f4f84a88cc6318022654acc01a01de.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	cmd.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	tfrzzkzh.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2304 wrote to memory of 5060	2304	JaffaCakes118_63f81f8264b1f8339dd8f9d6403bcd6a36f4f84a88cc6318022654acc01a01de.exe	85
PID 2304 wrote to memory of 5060	2304	JaffaCakes118_63f81f8264b1f8339dd8f9d6403bcd6a36f4f84a88cc6318022654acc01a01de.exe	85
PID 2304 wrote to memory of 5060	2304	JaffaCakes118_63f81f8264b1f8339dd8f9d6403bcd6a36f4f84a88cc6318022654acc01a01de.exe	85
PID 2304 wrote to memory of 4420	2304	JaffaCakes118_63f81f8264b1f8339dd8f9d6403bcd6a36f4f84a88cc6318022654acc01a01de.exe	87
PID 2304 wrote to memory of 4420	2304	JaffaCakes118_63f81f8264b1f8339dd8f9d6403bcd6a36f4f84a88cc6318022654acc01a01de.exe	87
PID 2304 wrote to memory of 4420	2304	JaffaCakes118_63f81f8264b1f8339dd8f9d6403bcd6a36f4f84a88cc6318022654acc01a01de.exe	87
PID 2304 wrote to memory of 5080	2304	JaffaCakes118_63f81f8264b1f8339dd8f9d6403bcd6a36f4f84a88cc6318022654acc01a01de.exe	89
PID 2304 wrote to memory of 5080	2304	JaffaCakes118_63f81f8264b1f8339dd8f9d6403bcd6a36f4f84a88cc6318022654acc01a01de.exe	89
PID 2304 wrote to memory of 5080	2304	JaffaCakes118_63f81f8264b1f8339dd8f9d6403bcd6a36f4f84a88cc6318022654acc01a01de.exe	89
PID 2304 wrote to memory of 3328	2304	JaffaCakes118_63f81f8264b1f8339dd8f9d6403bcd6a36f4f84a88cc6318022654acc01a01de.exe	92
PID 2304 wrote to memory of 3328	2304	JaffaCakes118_63f81f8264b1f8339dd8f9d6403bcd6a36f4f84a88cc6318022654acc01a01de.exe	92
PID 2304 wrote to memory of 3328	2304	JaffaCakes118_63f81f8264b1f8339dd8f9d6403bcd6a36f4f84a88cc6318022654acc01a01de.exe	92
PID 2304 wrote to memory of 3040	2304	JaffaCakes118_63f81f8264b1f8339dd8f9d6403bcd6a36f4f84a88cc6318022654acc01a01de.exe	94
PID 2304 wrote to memory of 3040	2304	JaffaCakes118_63f81f8264b1f8339dd8f9d6403bcd6a36f4f84a88cc6318022654acc01a01de.exe	94
PID 2304 wrote to memory of 3040	2304	JaffaCakes118_63f81f8264b1f8339dd8f9d6403bcd6a36f4f84a88cc6318022654acc01a01de.exe	94
PID 2304 wrote to memory of 3156	2304	JaffaCakes118_63f81f8264b1f8339dd8f9d6403bcd6a36f4f84a88cc6318022654acc01a01de.exe	97
PID 2304 wrote to memory of 3156	2304	JaffaCakes118_63f81f8264b1f8339dd8f9d6403bcd6a36f4f84a88cc6318022654acc01a01de.exe	97
PID 2304 wrote to memory of 3156	2304	JaffaCakes118_63f81f8264b1f8339dd8f9d6403bcd6a36f4f84a88cc6318022654acc01a01de.exe	97
PID 4800 wrote to memory of 1668	4800	tfrzzkzh.exe	105
PID 4800 wrote to memory of 1668	4800	tfrzzkzh.exe	105
PID 4800 wrote to memory of 1668	4800	tfrzzkzh.exe	105
PID 4800 wrote to memory of 1668	4800	tfrzzkzh.exe	105
PID 4800 wrote to memory of 1668	4800	tfrzzkzh.exe	105

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_63f81f8264b1f8339dd8f9d6403bcd6a36f4f84a88cc6318022654acc01a01de.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_63f81f8264b1f8339dd8f9d6403bcd6a36f4f84a88cc6318022654acc01a01de.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2304
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\dbdqmfwr\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5060
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tfrzzkzh.exe" C:\Windows\SysWOW64\dbdqmfwr\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4420
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create dbdqmfwr binPath= "C:\Windows\SysWOW64\dbdqmfwr\tfrzzkzh.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_63f81f8264b1f8339dd8f9d6403bcd6a36f4f84a88cc6318022654acc01a01de.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5080
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description dbdqmfwr "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3328
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start dbdqmfwr
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3040
- 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:3156
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2304 -s 1208
  2⤵
  - Program crash
  PID:1636

C:\Windows\SysWOW64\dbdqmfwr\tfrzzkzh.exe
C:\Windows\SysWOW64\dbdqmfwr\tfrzzkzh.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_63f81f8264b1f8339dd8f9d6403bcd6a36f4f84a88cc6318022654acc01a01de.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4800
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1668
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4800 -s 512
  2⤵
  - Program crash
  PID:2168

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2304 -ip 2304
1⤵
PID:232

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 4800 -ip 4800
1⤵
PID:3160

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\tfrzzkzh.exe

Filesize
11.8MB

MD5
a1051e3f3c1121526a329749eaba2bb7

SHA1
0f6a4b40a432b14aff02c537f977c0cb5afd18af

SHA256
b26e95e5429ece10248c2ccbe3a91f8b570ed90bd1fc5b25b5bfff3812ef6f44

SHA512
f6a6093b612940500f73779a3a31c5bf23f4400cd7086f18ee4b824a60f8daea763ad69777c135eec3e890fe4b347f1bdd73b315c0d0d9c52cc3a08b316376de

Download Submit
memory/1668-14-0x0000000000A00000-0x0000000000A15000-memory.dmp

Filesize
84KB

Download
memory/1668-17-0x0000000000A00000-0x0000000000A15000-memory.dmp

Filesize
84KB

Download
memory/1668-16-0x0000000000A00000-0x0000000000A15000-memory.dmp

Filesize
84KB

Download
memory/2304-8-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/2304-9-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/2304-1-0x00000000005D0000-0x00000000006D0000-memory.dmp

Filesize
1024KB

Download
memory/2304-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2304-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2304-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/4800-11-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/4800-12-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/4800-13-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/4800-18-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads