tofsee | cdbd5d999d6dcf08e27236b15b8944f88b1facc92e08f8c1413ce3b444d7a248

General

Target

JaffaCakes118_cdbd5d999d6dcf08e27236b15b8944f88b1facc92e08f8c1413ce3b444d7a248.exe
Size

211KB
MD5

9a2f4cdd68133418516dbf4012bdc9bc
SHA1

a9d0a10e228907054c0825171188634092f29680
SHA256

cdbd5d999d6dcf08e27236b15b8944f88b1facc92e08f8c1413ce3b444d7a248
SHA512

9dc9db2729e93df7ae17cc4b366211f4990285ff022ebe8fbc07528e34eaa9d40ae2cf7ba7e86af8b92fc087f12cba69bf032f7956b03213158c1a4d50918206
SSDEEP

6144:BZh9IJwIv6LIUvHtnHWH4IZsztVHeOli:ZeJwxLIUvHR2HopZeOM

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
4072	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\scyxrvur\ImagePath = "C:\\Windows\\SysWOW64\\scyxrvur\\tfmglrem.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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	JaffaCakes118_cdbd5d999d6dcf08e27236b15b8944f88b1facc92e08f8c1413ce3b444d7a248.exe

Deletes itself 1 IoCs

pid	Process
1964	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1688	tfmglrem.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1688 set thread context of 1964	1688	tfmglrem.exe	105

Launches sc.exe 3 IoCs

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

pid	Process
3432	sc.exe
1220	sc.exe
436	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 1 IoCs

pid	pid_target	Process	procid_target
4760	212	WerFault.exe	82

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	JaffaCakes118_cdbd5d999d6dcf08e27236b15b8944f88b1facc92e08f8c1413ce3b444d7a248.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	tfmglrem.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 212 wrote to memory of 4060	212	JaffaCakes118_cdbd5d999d6dcf08e27236b15b8944f88b1facc92e08f8c1413ce3b444d7a248.exe	83
PID 212 wrote to memory of 4060	212	JaffaCakes118_cdbd5d999d6dcf08e27236b15b8944f88b1facc92e08f8c1413ce3b444d7a248.exe	83
PID 212 wrote to memory of 4060	212	JaffaCakes118_cdbd5d999d6dcf08e27236b15b8944f88b1facc92e08f8c1413ce3b444d7a248.exe	83
PID 212 wrote to memory of 2896	212	JaffaCakes118_cdbd5d999d6dcf08e27236b15b8944f88b1facc92e08f8c1413ce3b444d7a248.exe	85
PID 212 wrote to memory of 2896	212	JaffaCakes118_cdbd5d999d6dcf08e27236b15b8944f88b1facc92e08f8c1413ce3b444d7a248.exe	85
PID 212 wrote to memory of 2896	212	JaffaCakes118_cdbd5d999d6dcf08e27236b15b8944f88b1facc92e08f8c1413ce3b444d7a248.exe	85
PID 212 wrote to memory of 1220	212	JaffaCakes118_cdbd5d999d6dcf08e27236b15b8944f88b1facc92e08f8c1413ce3b444d7a248.exe	88
PID 212 wrote to memory of 1220	212	JaffaCakes118_cdbd5d999d6dcf08e27236b15b8944f88b1facc92e08f8c1413ce3b444d7a248.exe	88
PID 212 wrote to memory of 1220	212	JaffaCakes118_cdbd5d999d6dcf08e27236b15b8944f88b1facc92e08f8c1413ce3b444d7a248.exe	88
PID 212 wrote to memory of 436	212	JaffaCakes118_cdbd5d999d6dcf08e27236b15b8944f88b1facc92e08f8c1413ce3b444d7a248.exe	90
PID 212 wrote to memory of 436	212	JaffaCakes118_cdbd5d999d6dcf08e27236b15b8944f88b1facc92e08f8c1413ce3b444d7a248.exe	90
PID 212 wrote to memory of 436	212	JaffaCakes118_cdbd5d999d6dcf08e27236b15b8944f88b1facc92e08f8c1413ce3b444d7a248.exe	90
PID 212 wrote to memory of 3432	212	JaffaCakes118_cdbd5d999d6dcf08e27236b15b8944f88b1facc92e08f8c1413ce3b444d7a248.exe	94
PID 212 wrote to memory of 3432	212	JaffaCakes118_cdbd5d999d6dcf08e27236b15b8944f88b1facc92e08f8c1413ce3b444d7a248.exe	94
PID 212 wrote to memory of 3432	212	JaffaCakes118_cdbd5d999d6dcf08e27236b15b8944f88b1facc92e08f8c1413ce3b444d7a248.exe	94
PID 212 wrote to memory of 4072	212	JaffaCakes118_cdbd5d999d6dcf08e27236b15b8944f88b1facc92e08f8c1413ce3b444d7a248.exe	97
PID 212 wrote to memory of 4072	212	JaffaCakes118_cdbd5d999d6dcf08e27236b15b8944f88b1facc92e08f8c1413ce3b444d7a248.exe	97
PID 212 wrote to memory of 4072	212	JaffaCakes118_cdbd5d999d6dcf08e27236b15b8944f88b1facc92e08f8c1413ce3b444d7a248.exe	97
PID 1688 wrote to memory of 1964	1688	tfmglrem.exe	105
PID 1688 wrote to memory of 1964	1688	tfmglrem.exe	105
PID 1688 wrote to memory of 1964	1688	tfmglrem.exe	105
PID 1688 wrote to memory of 1964	1688	tfmglrem.exe	105
PID 1688 wrote to memory of 1964	1688	tfmglrem.exe	105

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cdbd5d999d6dcf08e27236b15b8944f88b1facc92e08f8c1413ce3b444d7a248.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cdbd5d999d6dcf08e27236b15b8944f88b1facc92e08f8c1413ce3b444d7a248.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:212
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\scyxrvur\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4060
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tfmglrem.exe" C:\Windows\SysWOW64\scyxrvur\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2896
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create scyxrvur binPath= "C:\Windows\SysWOW64\scyxrvur\tfmglrem.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cdbd5d999d6dcf08e27236b15b8944f88b1facc92e08f8c1413ce3b444d7a248.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1220
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description scyxrvur "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:436
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start scyxrvur
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3432
- 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:4072
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 212 -s 1224
  2⤵
  - Program crash
  PID:4760

C:\Windows\SysWOW64\scyxrvur\tfmglrem.exe
C:\Windows\SysWOW64\scyxrvur\tfmglrem.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cdbd5d999d6dcf08e27236b15b8944f88b1facc92e08f8c1413ce3b444d7a248.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1688
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1964

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 212 -ip 212
1⤵
PID:3960

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\tfmglrem.exe

Filesize
11.9MB

MD5
466c320fccc4fefdb7059681ab479b35

SHA1
b6599a277fd40b50a39718ffd48f0cd22a292b4b

SHA256
1947ef8801ff8ff847dd16218d99bc2ebdc2e95862a2c2a4ecd42e5d5bcad033

SHA512
c8776112db660d9690d3b98dea1e7f446fd3a1759a306a2b6faa283840fe1d102bd1f0514ff4531989ade9e088986968fb5374230a3dbb67595e771fada978aa

Download Submit
memory/212-1-0x0000000002D50000-0x0000000002E50000-memory.dmp

Filesize
1024KB

Download
memory/212-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/212-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/212-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/212-9-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/212-8-0x0000000000400000-0x0000000002B74000-memory.dmp

Filesize
39.5MB

Download
memory/1688-12-0x0000000000400000-0x0000000002B74000-memory.dmp

Filesize
39.5MB

Download
memory/1964-11-0x0000000000E70000-0x0000000000E85000-memory.dmp

Filesize
84KB

Download
memory/1964-14-0x0000000000E70000-0x0000000000E85000-memory.dmp

Filesize
84KB

Download
memory/1964-15-0x0000000000E70000-0x0000000000E85000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads