tofsee | e207052ca4cc6e6eb1399833bbaabe19196ed6da4630b6d2bf6921de6b2414de

General

Target

JaffaCakes118_e207052ca4cc6e6eb1399833bbaabe19196ed6da4630b6d2bf6921de6b2414de.exe
Size

211KB
MD5

bc894bba00f2e0828016e6f50f15225f
SHA1

924afecad4084572d6a1ee0d605b371870340fc6
SHA256

e207052ca4cc6e6eb1399833bbaabe19196ed6da4630b6d2bf6921de6b2414de
SHA512

3706ca03998a2d0927410993b6adb9e45376fbec6df4dd927c1fd38413a43324f99d3005dc271902cc67bd83789c8ae0ab679a83d613df2544093490ac7380bb
SSDEEP

3072:wSmTyA3g9f0qZxL81oIZJ1Xy0frj0LspfmeXPnr+bZPwrSx1sIb8G0dnuhgC:wSmhgbZxLkJE0fX0QZSbkSx1sIum

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
1896	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\urypihuh\ImagePath = "C:\\Windows\\SysWOW64\\urypihuh\\tivrdcvh.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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	JaffaCakes118_e207052ca4cc6e6eb1399833bbaabe19196ed6da4630b6d2bf6921de6b2414de.exe

Deletes itself 1 IoCs

pid	Process
2988	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4468	tivrdcvh.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4468 set thread context of 2988	4468	tivrdcvh.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
1960	sc.exe
3780	sc.exe
3796	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
4488	4304	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tivrdcvh.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_e207052ca4cc6e6eb1399833bbaabe19196ed6da4630b6d2bf6921de6b2414de.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4304 wrote to memory of 3232	4304	JaffaCakes118_e207052ca4cc6e6eb1399833bbaabe19196ed6da4630b6d2bf6921de6b2414de.exe	83
PID 4304 wrote to memory of 3232	4304	JaffaCakes118_e207052ca4cc6e6eb1399833bbaabe19196ed6da4630b6d2bf6921de6b2414de.exe	83
PID 4304 wrote to memory of 3232	4304	JaffaCakes118_e207052ca4cc6e6eb1399833bbaabe19196ed6da4630b6d2bf6921de6b2414de.exe	83
PID 4304 wrote to memory of 2916	4304	JaffaCakes118_e207052ca4cc6e6eb1399833bbaabe19196ed6da4630b6d2bf6921de6b2414de.exe	85
PID 4304 wrote to memory of 2916	4304	JaffaCakes118_e207052ca4cc6e6eb1399833bbaabe19196ed6da4630b6d2bf6921de6b2414de.exe	85
PID 4304 wrote to memory of 2916	4304	JaffaCakes118_e207052ca4cc6e6eb1399833bbaabe19196ed6da4630b6d2bf6921de6b2414de.exe	85
PID 4304 wrote to memory of 3796	4304	JaffaCakes118_e207052ca4cc6e6eb1399833bbaabe19196ed6da4630b6d2bf6921de6b2414de.exe	87
PID 4304 wrote to memory of 3796	4304	JaffaCakes118_e207052ca4cc6e6eb1399833bbaabe19196ed6da4630b6d2bf6921de6b2414de.exe	87
PID 4304 wrote to memory of 3796	4304	JaffaCakes118_e207052ca4cc6e6eb1399833bbaabe19196ed6da4630b6d2bf6921de6b2414de.exe	87
PID 4304 wrote to memory of 1960	4304	JaffaCakes118_e207052ca4cc6e6eb1399833bbaabe19196ed6da4630b6d2bf6921de6b2414de.exe	90
PID 4304 wrote to memory of 1960	4304	JaffaCakes118_e207052ca4cc6e6eb1399833bbaabe19196ed6da4630b6d2bf6921de6b2414de.exe	90
PID 4304 wrote to memory of 1960	4304	JaffaCakes118_e207052ca4cc6e6eb1399833bbaabe19196ed6da4630b6d2bf6921de6b2414de.exe	90
PID 4304 wrote to memory of 3780	4304	JaffaCakes118_e207052ca4cc6e6eb1399833bbaabe19196ed6da4630b6d2bf6921de6b2414de.exe	92
PID 4304 wrote to memory of 3780	4304	JaffaCakes118_e207052ca4cc6e6eb1399833bbaabe19196ed6da4630b6d2bf6921de6b2414de.exe	92
PID 4304 wrote to memory of 3780	4304	JaffaCakes118_e207052ca4cc6e6eb1399833bbaabe19196ed6da4630b6d2bf6921de6b2414de.exe	92
PID 4304 wrote to memory of 1896	4304	JaffaCakes118_e207052ca4cc6e6eb1399833bbaabe19196ed6da4630b6d2bf6921de6b2414de.exe	95
PID 4304 wrote to memory of 1896	4304	JaffaCakes118_e207052ca4cc6e6eb1399833bbaabe19196ed6da4630b6d2bf6921de6b2414de.exe	95
PID 4304 wrote to memory of 1896	4304	JaffaCakes118_e207052ca4cc6e6eb1399833bbaabe19196ed6da4630b6d2bf6921de6b2414de.exe	95
PID 4468 wrote to memory of 2988	4468	tivrdcvh.exe	101
PID 4468 wrote to memory of 2988	4468	tivrdcvh.exe	101
PID 4468 wrote to memory of 2988	4468	tivrdcvh.exe	101
PID 4468 wrote to memory of 2988	4468	tivrdcvh.exe	101
PID 4468 wrote to memory of 2988	4468	tivrdcvh.exe	101

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e207052ca4cc6e6eb1399833bbaabe19196ed6da4630b6d2bf6921de6b2414de.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e207052ca4cc6e6eb1399833bbaabe19196ed6da4630b6d2bf6921de6b2414de.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4304
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\urypihuh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3232
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tivrdcvh.exe" C:\Windows\SysWOW64\urypihuh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2916
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create urypihuh binPath= "C:\Windows\SysWOW64\urypihuh\tivrdcvh.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e207052ca4cc6e6eb1399833bbaabe19196ed6da4630b6d2bf6921de6b2414de.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3796
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description urypihuh "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1960
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start urypihuh
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3780
- 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:1896
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4304 -s 1040
  2⤵
  - Program crash
  PID:4488

C:\Windows\SysWOW64\urypihuh\tivrdcvh.exe
C:\Windows\SysWOW64\urypihuh\tivrdcvh.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e207052ca4cc6e6eb1399833bbaabe19196ed6da4630b6d2bf6921de6b2414de.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4468
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2988

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 4304 -ip 4304
1⤵
PID:4172

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\tivrdcvh.exe

Filesize
14.0MB

MD5
a8c79bc7072da447bf5d0c99175d1b71

SHA1
80e2b97976d4c0e05febc20c6ba1582d283df292

SHA256
7dc5fb73500a9765236cbf09bc731a4c3aa6efbc55a736b8ed630d9b7e3136cf

SHA512
2bd5d3ce68c6f293e40ca2caf4c6c7453acbf6f9e5efe5afa1839103f2523dfc9f79a3826be1d28fcec84d1ab7d524df587952eee9b3814511f2c2fd6445c06e

Download Submit
memory/2988-11-0x0000000000D40000-0x0000000000D55000-memory.dmp

Filesize
84KB

Download
memory/2988-14-0x0000000000D40000-0x0000000000D55000-memory.dmp

Filesize
84KB

Download
memory/2988-15-0x0000000000D40000-0x0000000000D55000-memory.dmp

Filesize
84KB

Download
memory/4304-1-0x0000000002CB0000-0x0000000002DB0000-memory.dmp

Filesize
1024KB

Download
memory/4304-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/4304-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4304-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4304-9-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/4304-8-0x0000000000400000-0x0000000002B74000-memory.dmp

Filesize
39.5MB

Download
memory/4468-12-0x0000000000400000-0x0000000002B74000-memory.dmp

Filesize
39.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads