tofsee | df0f634a2cb24945ef754ff49df01e75315a30e5c2aec55899501cde537da4f1

General

Target

JaffaCakes118_0d10631436804ba5b76684f10fb17517.exe
Size

14.7MB
MD5

0d10631436804ba5b76684f10fb17517
SHA1

c41468603c6e7724cabcfbfff241f51666dac258
SHA256

df0f634a2cb24945ef754ff49df01e75315a30e5c2aec55899501cde537da4f1
SHA512

4b3a582bbcb90663057b4fcdf22a7e2f695864c719c66a6addd3bc6a0a3dc7678a38dd4d3f8d890eb84087f0813b595895e85eaa4c2406f25931527aa9f1a91a
SSDEEP

3072:N04p67yUtBDBdbhTX/kBKr1UHHojcVKn8eYn/XVn4MfixqktaLBd3qp0039CH44f:itdqBaUHIQc8eYnf1fiwe4aGk9

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

quadoil.ru

lakeflex.ru

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
4892	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\wrvcusrm\ImagePath = "C:\\Windows\\SysWOW64\\wrvcusrm\\ngrhspib.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_0d10631436804ba5b76684f10fb17517.exe

Deletes itself 1 IoCs

pid	Process
4104	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2372	ngrhspib.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2372 set thread context of 4104	2372	ngrhspib.exe	103

Launches sc.exe 3 IoCs

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

pid	Process
4940	sc.exe
1424	sc.exe
1628	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
3052	840	WerFault.exe	82
1388	2372	WerFault.exe	94

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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ngrhspib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_0d10631436804ba5b76684f10fb17517.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	netsh.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 840 wrote to memory of 3160	840	JaffaCakes118_0d10631436804ba5b76684f10fb17517.exe	83
PID 840 wrote to memory of 3160	840	JaffaCakes118_0d10631436804ba5b76684f10fb17517.exe	83
PID 840 wrote to memory of 3160	840	JaffaCakes118_0d10631436804ba5b76684f10fb17517.exe	83
PID 840 wrote to memory of 1536	840	JaffaCakes118_0d10631436804ba5b76684f10fb17517.exe	86
PID 840 wrote to memory of 1536	840	JaffaCakes118_0d10631436804ba5b76684f10fb17517.exe	86
PID 840 wrote to memory of 1536	840	JaffaCakes118_0d10631436804ba5b76684f10fb17517.exe	86
PID 840 wrote to memory of 1424	840	JaffaCakes118_0d10631436804ba5b76684f10fb17517.exe	88
PID 840 wrote to memory of 1424	840	JaffaCakes118_0d10631436804ba5b76684f10fb17517.exe	88
PID 840 wrote to memory of 1424	840	JaffaCakes118_0d10631436804ba5b76684f10fb17517.exe	88
PID 840 wrote to memory of 1628	840	JaffaCakes118_0d10631436804ba5b76684f10fb17517.exe	90
PID 840 wrote to memory of 1628	840	JaffaCakes118_0d10631436804ba5b76684f10fb17517.exe	90
PID 840 wrote to memory of 1628	840	JaffaCakes118_0d10631436804ba5b76684f10fb17517.exe	90
PID 840 wrote to memory of 4940	840	JaffaCakes118_0d10631436804ba5b76684f10fb17517.exe	92
PID 840 wrote to memory of 4940	840	JaffaCakes118_0d10631436804ba5b76684f10fb17517.exe	92
PID 840 wrote to memory of 4940	840	JaffaCakes118_0d10631436804ba5b76684f10fb17517.exe	92
PID 840 wrote to memory of 4892	840	JaffaCakes118_0d10631436804ba5b76684f10fb17517.exe	95
PID 840 wrote to memory of 4892	840	JaffaCakes118_0d10631436804ba5b76684f10fb17517.exe	95
PID 840 wrote to memory of 4892	840	JaffaCakes118_0d10631436804ba5b76684f10fb17517.exe	95
PID 2372 wrote to memory of 4104	2372	ngrhspib.exe	103
PID 2372 wrote to memory of 4104	2372	ngrhspib.exe	103
PID 2372 wrote to memory of 4104	2372	ngrhspib.exe	103
PID 2372 wrote to memory of 4104	2372	ngrhspib.exe	103
PID 2372 wrote to memory of 4104	2372	ngrhspib.exe	103

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0d10631436804ba5b76684f10fb17517.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0d10631436804ba5b76684f10fb17517.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:840
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wrvcusrm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3160
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ngrhspib.exe" C:\Windows\SysWOW64\wrvcusrm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1536
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create wrvcusrm binPath= "C:\Windows\SysWOW64\wrvcusrm\ngrhspib.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0d10631436804ba5b76684f10fb17517.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1424
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description wrvcusrm "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1628
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start wrvcusrm
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4940
- 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:4892
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 840 -s 576
  2⤵
  - Program crash
  PID:3052

C:\Windows\SysWOW64\wrvcusrm\ngrhspib.exe
C:\Windows\SysWOW64\wrvcusrm\ngrhspib.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0d10631436804ba5b76684f10fb17517.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2372
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4104
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2372 -s 520
  2⤵
  - Program crash
  PID:1388

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 840 -ip 840
1⤵
PID:2268

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 2372 -ip 2372
1⤵
PID:3152

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\ngrhspib.exe

Filesize
12.4MB

MD5
71b82e60832dd85c8fba0af214fe7c1f

SHA1
62f2286e9940adb4ba74f3af716e467a3543eef8

SHA256
a41c11b9934cb269fe47549303352fda18b0db166860cc8151e1d1b2074b9a34

SHA512
3c2a6c148cbcfa46e81781281c89eedbacc8e7e912c610fe62a94b0ce57a5bbaa0c300e0e220e8b69abb58ddc9c9feca5fd8957f9cbf60b8fd220653937e117c

Download Submit
memory/840-1-0x0000000000870000-0x0000000000970000-memory.dmp

Filesize
1024KB

Download
memory/840-2-0x0000000000840000-0x0000000000853000-memory.dmp

Filesize
76KB

Download
memory/840-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/840-8-0x0000000000400000-0x000000000076F000-memory.dmp

Filesize
3.4MB

Download
memory/840-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/840-9-0x0000000000840000-0x0000000000853000-memory.dmp

Filesize
76KB

Download
memory/2372-11-0x0000000000400000-0x000000000076F000-memory.dmp

Filesize
3.4MB

Download
memory/2372-17-0x0000000000400000-0x000000000076F000-memory.dmp

Filesize
3.4MB

Download
memory/4104-12-0x00000000006D0000-0x00000000006E5000-memory.dmp

Filesize
84KB

Download
memory/4104-14-0x00000000006D0000-0x00000000006E5000-memory.dmp

Filesize
84KB

Download
memory/4104-15-0x00000000006D0000-0x00000000006E5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads