tofsee | 5464df8918e5977f6e16e1f39898b92b5b69a4f0ab6d2f3374bf0b4aca246eee

General

Target

JaffaCakes118_5464df8918e5977f6e16e1f39898b92b5b69a4f0ab6d2f3374bf0b4aca246eee.exe
Size

299KB
MD5

fc7e642644626b8857777f4b253f115d
SHA1

17b38fb3dd5826a4f6d5208dbd2292011b13ee28
SHA256

5464df8918e5977f6e16e1f39898b92b5b69a4f0ab6d2f3374bf0b4aca246eee
SHA512

6799435871d1dd58f240cff67b5c3718609c5b679d84bae4552901561e37f2ac8dd3fb68ba20538e7dcdc02a6a5cac6e25f48906da0722280ac17144295f4b14
SSDEEP

6144:f/blk14f8PO3ZCxKjlndRHaTQPr4EZdtgIP:fZbrCxKXRHaTQ0KQ

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

patmushta.info

parubey.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
5032	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\xhsfkyrn\ImagePath = "C:\\Windows\\SysWOW64\\xhsfkyrn\\iznkxdg.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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	JaffaCakes118_5464df8918e5977f6e16e1f39898b92b5b69a4f0ab6d2f3374bf0b4aca246eee.exe

Deletes itself 1 IoCs

pid	Process
4788	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1924	iznkxdg.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1924 set thread context of 4788	1924	iznkxdg.exe	97

Launches sc.exe 3 IoCs

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

pid	Process
512	sc.exe
3456	sc.exe
4448	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
392	2796	WerFault.exe	82
1720	1924	WerFault.exe	93

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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_5464df8918e5977f6e16e1f39898b92b5b69a4f0ab6d2f3374bf0b4aca246eee.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	iznkxdg.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2796 wrote to memory of 1180	2796	JaffaCakes118_5464df8918e5977f6e16e1f39898b92b5b69a4f0ab6d2f3374bf0b4aca246eee.exe	83
PID 2796 wrote to memory of 1180	2796	JaffaCakes118_5464df8918e5977f6e16e1f39898b92b5b69a4f0ab6d2f3374bf0b4aca246eee.exe	83
PID 2796 wrote to memory of 1180	2796	JaffaCakes118_5464df8918e5977f6e16e1f39898b92b5b69a4f0ab6d2f3374bf0b4aca246eee.exe	83
PID 2796 wrote to memory of 1120	2796	JaffaCakes118_5464df8918e5977f6e16e1f39898b92b5b69a4f0ab6d2f3374bf0b4aca246eee.exe	85
PID 2796 wrote to memory of 1120	2796	JaffaCakes118_5464df8918e5977f6e16e1f39898b92b5b69a4f0ab6d2f3374bf0b4aca246eee.exe	85
PID 2796 wrote to memory of 1120	2796	JaffaCakes118_5464df8918e5977f6e16e1f39898b92b5b69a4f0ab6d2f3374bf0b4aca246eee.exe	85
PID 2796 wrote to memory of 512	2796	JaffaCakes118_5464df8918e5977f6e16e1f39898b92b5b69a4f0ab6d2f3374bf0b4aca246eee.exe	87
PID 2796 wrote to memory of 512	2796	JaffaCakes118_5464df8918e5977f6e16e1f39898b92b5b69a4f0ab6d2f3374bf0b4aca246eee.exe	87
PID 2796 wrote to memory of 512	2796	JaffaCakes118_5464df8918e5977f6e16e1f39898b92b5b69a4f0ab6d2f3374bf0b4aca246eee.exe	87
PID 2796 wrote to memory of 3456	2796	JaffaCakes118_5464df8918e5977f6e16e1f39898b92b5b69a4f0ab6d2f3374bf0b4aca246eee.exe	89
PID 2796 wrote to memory of 3456	2796	JaffaCakes118_5464df8918e5977f6e16e1f39898b92b5b69a4f0ab6d2f3374bf0b4aca246eee.exe	89
PID 2796 wrote to memory of 3456	2796	JaffaCakes118_5464df8918e5977f6e16e1f39898b92b5b69a4f0ab6d2f3374bf0b4aca246eee.exe	89
PID 2796 wrote to memory of 4448	2796	JaffaCakes118_5464df8918e5977f6e16e1f39898b92b5b69a4f0ab6d2f3374bf0b4aca246eee.exe	91
PID 2796 wrote to memory of 4448	2796	JaffaCakes118_5464df8918e5977f6e16e1f39898b92b5b69a4f0ab6d2f3374bf0b4aca246eee.exe	91
PID 2796 wrote to memory of 4448	2796	JaffaCakes118_5464df8918e5977f6e16e1f39898b92b5b69a4f0ab6d2f3374bf0b4aca246eee.exe	91
PID 2796 wrote to memory of 5032	2796	JaffaCakes118_5464df8918e5977f6e16e1f39898b92b5b69a4f0ab6d2f3374bf0b4aca246eee.exe	94
PID 2796 wrote to memory of 5032	2796	JaffaCakes118_5464df8918e5977f6e16e1f39898b92b5b69a4f0ab6d2f3374bf0b4aca246eee.exe	94
PID 2796 wrote to memory of 5032	2796	JaffaCakes118_5464df8918e5977f6e16e1f39898b92b5b69a4f0ab6d2f3374bf0b4aca246eee.exe	94
PID 1924 wrote to memory of 4788	1924	iznkxdg.exe	97
PID 1924 wrote to memory of 4788	1924	iznkxdg.exe	97
PID 1924 wrote to memory of 4788	1924	iznkxdg.exe	97
PID 1924 wrote to memory of 4788	1924	iznkxdg.exe	97
PID 1924 wrote to memory of 4788	1924	iznkxdg.exe	97

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5464df8918e5977f6e16e1f39898b92b5b69a4f0ab6d2f3374bf0b4aca246eee.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5464df8918e5977f6e16e1f39898b92b5b69a4f0ab6d2f3374bf0b4aca246eee.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2796
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xhsfkyrn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1180
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\iznkxdg.exe" C:\Windows\SysWOW64\xhsfkyrn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1120
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create xhsfkyrn binPath= "C:\Windows\SysWOW64\xhsfkyrn\iznkxdg.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5464df8918e5977f6e16e1f39898b92b5b69a4f0ab6d2f3374bf0b4aca246eee.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:512
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description xhsfkyrn "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3456
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start xhsfkyrn
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4448
- 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:5032
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2796 -s 1180
  2⤵
  - Program crash
  PID:392

C:\Windows\SysWOW64\xhsfkyrn\iznkxdg.exe
C:\Windows\SysWOW64\xhsfkyrn\iznkxdg.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5464df8918e5977f6e16e1f39898b92b5b69a4f0ab6d2f3374bf0b4aca246eee.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1924
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4788
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1924 -s 516
  2⤵
  - Program crash
  PID:1720

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 2796 -ip 2796
1⤵
PID:1644

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 1924 -ip 1924
1⤵
PID:1500

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\iznkxdg.exe

Filesize
13.1MB

MD5
7261add825559ce71c28273fc72e4a39

SHA1
23677b45414b81c86e56d645ee5d4aaa5e6a231f

SHA256
dd917866f7623a30f24b8a4d4919477f7f55182e6ee84608bdbb33f713db1c83

SHA512
9c5e72974bba70b5083f419aac1533cf74f9989f98f81aa963dd9e5a4dc91fa4819127d78b6935c5795d045fb79959076a9828f67b71db70d9f2072cc9d4105d

Download Submit
memory/1924-10-0x0000000000400000-0x0000000000461000-memory.dmp

Filesize
388KB

Download
memory/1924-20-0x0000000000400000-0x0000000000461000-memory.dmp

Filesize
388KB

Download
memory/1924-8-0x0000000000400000-0x0000000000461000-memory.dmp

Filesize
388KB

Download
memory/1924-9-0x0000000000400000-0x0000000000461000-memory.dmp

Filesize
388KB

Download
memory/2796-14-0x0000000000640000-0x0000000000740000-memory.dmp

Filesize
1024KB

Download
memory/2796-1-0x0000000000640000-0x0000000000740000-memory.dmp

Filesize
1024KB

Download
memory/2796-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2796-16-0x0000000000400000-0x0000000000461000-memory.dmp

Filesize
388KB

Download
memory/2796-18-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2796-17-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/2796-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/4788-11-0x0000000001090000-0x00000000010A5000-memory.dmp

Filesize
84KB

Download
memory/4788-15-0x0000000001090000-0x00000000010A5000-memory.dmp

Filesize
84KB

Download
memory/4788-21-0x0000000001090000-0x00000000010A5000-memory.dmp

Filesize
84KB

Download
memory/4788-22-0x0000000001090000-0x00000000010A5000-memory.dmp

Filesize
84KB

Download
memory/4788-23-0x0000000001090000-0x00000000010A5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads