tofsee | 809511a12696ee0730fad6e5472210cd09ee5b3e42199771e0a785c7d703ccd7

General

Target

JaffaCakes118_809511a12696ee0730fad6e5472210cd09ee5b3e42199771e0a785c7d703ccd7.exe
Size

336KB
MD5

4d7c132fc1fe7e80763fefae0897fe6b
SHA1

213d4abc977acd8c1abce1d68058eb80f2c636bc
SHA256

809511a12696ee0730fad6e5472210cd09ee5b3e42199771e0a785c7d703ccd7
SHA512

5769fd49fe477b5f7194c5bdfd7c1bbd1a755f2537702583fcc8e3517dc49d16832ab5be78098b84be5edf9347f2ebc0afd04ad9cc3bead8c0ed4b99c12f4872
SSDEEP

6144:V6lQKGal6xVvGEWZwcsqpyN+1x+OzzXV:kljhl6n+EWZwcfgWx+Ozz

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
664	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\hukzkqja\ImagePath = "C:\\Windows\\SysWOW64\\hukzkqja\\nomwzsxi.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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	JaffaCakes118_809511a12696ee0730fad6e5472210cd09ee5b3e42199771e0a785c7d703ccd7.exe

Deletes itself 1 IoCs

pid	Process
3236	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4776	nomwzsxi.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4776 set thread context of 3236	4776	nomwzsxi.exe	100

Launches sc.exe 3 IoCs

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

pid	Process
1020	sc.exe
2812	sc.exe
2512	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
3728	3524	WerFault.exe	83
324	4776	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	nomwzsxi.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_809511a12696ee0730fad6e5472210cd09ee5b3e42199771e0a785c7d703ccd7.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3524 wrote to memory of 4648	3524	JaffaCakes118_809511a12696ee0730fad6e5472210cd09ee5b3e42199771e0a785c7d703ccd7.exe	84
PID 3524 wrote to memory of 4648	3524	JaffaCakes118_809511a12696ee0730fad6e5472210cd09ee5b3e42199771e0a785c7d703ccd7.exe	84
PID 3524 wrote to memory of 4648	3524	JaffaCakes118_809511a12696ee0730fad6e5472210cd09ee5b3e42199771e0a785c7d703ccd7.exe	84
PID 3524 wrote to memory of 1756	3524	JaffaCakes118_809511a12696ee0730fad6e5472210cd09ee5b3e42199771e0a785c7d703ccd7.exe	86
PID 3524 wrote to memory of 1756	3524	JaffaCakes118_809511a12696ee0730fad6e5472210cd09ee5b3e42199771e0a785c7d703ccd7.exe	86
PID 3524 wrote to memory of 1756	3524	JaffaCakes118_809511a12696ee0730fad6e5472210cd09ee5b3e42199771e0a785c7d703ccd7.exe	86
PID 3524 wrote to memory of 2512	3524	JaffaCakes118_809511a12696ee0730fad6e5472210cd09ee5b3e42199771e0a785c7d703ccd7.exe	88
PID 3524 wrote to memory of 2512	3524	JaffaCakes118_809511a12696ee0730fad6e5472210cd09ee5b3e42199771e0a785c7d703ccd7.exe	88
PID 3524 wrote to memory of 2512	3524	JaffaCakes118_809511a12696ee0730fad6e5472210cd09ee5b3e42199771e0a785c7d703ccd7.exe	88
PID 3524 wrote to memory of 1020	3524	JaffaCakes118_809511a12696ee0730fad6e5472210cd09ee5b3e42199771e0a785c7d703ccd7.exe	90
PID 3524 wrote to memory of 1020	3524	JaffaCakes118_809511a12696ee0730fad6e5472210cd09ee5b3e42199771e0a785c7d703ccd7.exe	90
PID 3524 wrote to memory of 1020	3524	JaffaCakes118_809511a12696ee0730fad6e5472210cd09ee5b3e42199771e0a785c7d703ccd7.exe	90
PID 3524 wrote to memory of 2812	3524	JaffaCakes118_809511a12696ee0730fad6e5472210cd09ee5b3e42199771e0a785c7d703ccd7.exe	92
PID 3524 wrote to memory of 2812	3524	JaffaCakes118_809511a12696ee0730fad6e5472210cd09ee5b3e42199771e0a785c7d703ccd7.exe	92
PID 3524 wrote to memory of 2812	3524	JaffaCakes118_809511a12696ee0730fad6e5472210cd09ee5b3e42199771e0a785c7d703ccd7.exe	92
PID 3524 wrote to memory of 664	3524	JaffaCakes118_809511a12696ee0730fad6e5472210cd09ee5b3e42199771e0a785c7d703ccd7.exe	95
PID 3524 wrote to memory of 664	3524	JaffaCakes118_809511a12696ee0730fad6e5472210cd09ee5b3e42199771e0a785c7d703ccd7.exe	95
PID 3524 wrote to memory of 664	3524	JaffaCakes118_809511a12696ee0730fad6e5472210cd09ee5b3e42199771e0a785c7d703ccd7.exe	95
PID 4776 wrote to memory of 3236	4776	nomwzsxi.exe	100
PID 4776 wrote to memory of 3236	4776	nomwzsxi.exe	100
PID 4776 wrote to memory of 3236	4776	nomwzsxi.exe	100
PID 4776 wrote to memory of 3236	4776	nomwzsxi.exe	100
PID 4776 wrote to memory of 3236	4776	nomwzsxi.exe	100

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_809511a12696ee0730fad6e5472210cd09ee5b3e42199771e0a785c7d703ccd7.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_809511a12696ee0730fad6e5472210cd09ee5b3e42199771e0a785c7d703ccd7.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3524
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\hukzkqja\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4648
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\nomwzsxi.exe" C:\Windows\SysWOW64\hukzkqja\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1756
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create hukzkqja binPath= "C:\Windows\SysWOW64\hukzkqja\nomwzsxi.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_809511a12696ee0730fad6e5472210cd09ee5b3e42199771e0a785c7d703ccd7.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2512
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description hukzkqja "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1020
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start hukzkqja
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2812
- 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:664
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3524 -s 572
  2⤵
  - Program crash
  PID:3728

C:\Windows\SysWOW64\hukzkqja\nomwzsxi.exe
C:\Windows\SysWOW64\hukzkqja\nomwzsxi.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_809511a12696ee0730fad6e5472210cd09ee5b3e42199771e0a785c7d703ccd7.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4776
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3236
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4776 -s 512
  2⤵
  - Program crash
  PID:324

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3524 -ip 3524
1⤵
PID:2552

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4776 -ip 4776
1⤵
PID:5060

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\nomwzsxi.exe

Filesize
11.6MB

MD5
e9a419bb12417e0c5a74c61c35d59e6e

SHA1
679bc012dfd7e0aa8796d609b789b6a6154a33a8

SHA256
da60acd324749c4fd255994fba813923a510455bf88a97f7d56aee77ec260128

SHA512
390082c0e1d6c1006a043805689172cc595b4f2119b9dc25e68b2f705f09a9b45d5a5a534994e77519eb094f1eeaa9a2a2ed2f070a2dc8ae858ffac3f4f50bf4

Download Submit
memory/3236-13-0x0000000000380000-0x0000000000395000-memory.dmp

Filesize
84KB

Download
memory/3236-11-0x0000000000380000-0x0000000000395000-memory.dmp

Filesize
84KB

Download
memory/3236-14-0x0000000000380000-0x0000000000395000-memory.dmp

Filesize
84KB

Download
memory/3524-1-0x0000000002CF0000-0x0000000002DF0000-memory.dmp

Filesize
1024KB

Download
memory/3524-2-0x0000000002CB0000-0x0000000002CC3000-memory.dmp

Filesize
76KB

Download
memory/3524-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3524-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3524-8-0x0000000002CB0000-0x0000000002CC3000-memory.dmp

Filesize
76KB

Download
memory/3524-7-0x0000000000400000-0x0000000002B4C000-memory.dmp

Filesize
39.3MB

Download
memory/4776-15-0x0000000000400000-0x0000000002B4C000-memory.dmp

Filesize
39.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads