tofsee | 9ff44d9fb9de4235ad6b9046731a425c2be0329f36c6d8d31980aa85c71e05a8

General

Target

JaffaCakes118_9ff44d9fb9de4235ad6b9046731a425c2be0329f36c6d8d31980aa85c71e05a8.exe
Size

228KB
MD5

39f8a25f73e04416c3de07548c94287d
SHA1

ab931fd48f4711835300f7d26fefb6720e998633
SHA256

9ff44d9fb9de4235ad6b9046731a425c2be0329f36c6d8d31980aa85c71e05a8
SHA512

e909e52d5ef6804fca2111b0131d8892a9a1c747f80d4968292e7228d26b61517657ea63f319e14ee6692b509220895d4cf66e1a3ff208e56beeeeedfc298880
SSDEEP

3072:AcFOZRBBnLzOcn1H6yVphikEkzRO0SXT7yX1bNYys++2U0zsVbMDTAo:AcFO3XScn1HfpLEkNrN7JlRj

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
684	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\bxqhscbt\ImagePath = "C:\\Windows\\SysWOW64\\bxqhscbt\\zlxffqfn.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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	JaffaCakes118_9ff44d9fb9de4235ad6b9046731a425c2be0329f36c6d8d31980aa85c71e05a8.exe

Deletes itself 1 IoCs

pid	Process
4944	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4064	zlxffqfn.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4064 set thread context of 4944	4064	zlxffqfn.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
3528	sc.exe
1344	sc.exe
1808	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
4728	4448	WerFault.exe	83
5088	4064	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	JaffaCakes118_9ff44d9fb9de4235ad6b9046731a425c2be0329f36c6d8d31980aa85c71e05a8.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	zlxffqfn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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 4448 wrote to memory of 1956	4448	JaffaCakes118_9ff44d9fb9de4235ad6b9046731a425c2be0329f36c6d8d31980aa85c71e05a8.exe	84
PID 4448 wrote to memory of 1956	4448	JaffaCakes118_9ff44d9fb9de4235ad6b9046731a425c2be0329f36c6d8d31980aa85c71e05a8.exe	84
PID 4448 wrote to memory of 1956	4448	JaffaCakes118_9ff44d9fb9de4235ad6b9046731a425c2be0329f36c6d8d31980aa85c71e05a8.exe	84
PID 4448 wrote to memory of 548	4448	JaffaCakes118_9ff44d9fb9de4235ad6b9046731a425c2be0329f36c6d8d31980aa85c71e05a8.exe	86
PID 4448 wrote to memory of 548	4448	JaffaCakes118_9ff44d9fb9de4235ad6b9046731a425c2be0329f36c6d8d31980aa85c71e05a8.exe	86
PID 4448 wrote to memory of 548	4448	JaffaCakes118_9ff44d9fb9de4235ad6b9046731a425c2be0329f36c6d8d31980aa85c71e05a8.exe	86
PID 4448 wrote to memory of 3528	4448	JaffaCakes118_9ff44d9fb9de4235ad6b9046731a425c2be0329f36c6d8d31980aa85c71e05a8.exe	88
PID 4448 wrote to memory of 3528	4448	JaffaCakes118_9ff44d9fb9de4235ad6b9046731a425c2be0329f36c6d8d31980aa85c71e05a8.exe	88
PID 4448 wrote to memory of 3528	4448	JaffaCakes118_9ff44d9fb9de4235ad6b9046731a425c2be0329f36c6d8d31980aa85c71e05a8.exe	88
PID 4448 wrote to memory of 1344	4448	JaffaCakes118_9ff44d9fb9de4235ad6b9046731a425c2be0329f36c6d8d31980aa85c71e05a8.exe	90
PID 4448 wrote to memory of 1344	4448	JaffaCakes118_9ff44d9fb9de4235ad6b9046731a425c2be0329f36c6d8d31980aa85c71e05a8.exe	90
PID 4448 wrote to memory of 1344	4448	JaffaCakes118_9ff44d9fb9de4235ad6b9046731a425c2be0329f36c6d8d31980aa85c71e05a8.exe	90
PID 4448 wrote to memory of 1808	4448	JaffaCakes118_9ff44d9fb9de4235ad6b9046731a425c2be0329f36c6d8d31980aa85c71e05a8.exe	92
PID 4448 wrote to memory of 1808	4448	JaffaCakes118_9ff44d9fb9de4235ad6b9046731a425c2be0329f36c6d8d31980aa85c71e05a8.exe	92
PID 4448 wrote to memory of 1808	4448	JaffaCakes118_9ff44d9fb9de4235ad6b9046731a425c2be0329f36c6d8d31980aa85c71e05a8.exe	92
PID 4448 wrote to memory of 684	4448	JaffaCakes118_9ff44d9fb9de4235ad6b9046731a425c2be0329f36c6d8d31980aa85c71e05a8.exe	95
PID 4448 wrote to memory of 684	4448	JaffaCakes118_9ff44d9fb9de4235ad6b9046731a425c2be0329f36c6d8d31980aa85c71e05a8.exe	95
PID 4448 wrote to memory of 684	4448	JaffaCakes118_9ff44d9fb9de4235ad6b9046731a425c2be0329f36c6d8d31980aa85c71e05a8.exe	95
PID 4064 wrote to memory of 4944	4064	zlxffqfn.exe	101
PID 4064 wrote to memory of 4944	4064	zlxffqfn.exe	101
PID 4064 wrote to memory of 4944	4064	zlxffqfn.exe	101
PID 4064 wrote to memory of 4944	4064	zlxffqfn.exe	101
PID 4064 wrote to memory of 4944	4064	zlxffqfn.exe	101

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9ff44d9fb9de4235ad6b9046731a425c2be0329f36c6d8d31980aa85c71e05a8.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9ff44d9fb9de4235ad6b9046731a425c2be0329f36c6d8d31980aa85c71e05a8.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4448
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\bxqhscbt\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1956
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\zlxffqfn.exe" C:\Windows\SysWOW64\bxqhscbt\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:548
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create bxqhscbt binPath= "C:\Windows\SysWOW64\bxqhscbt\zlxffqfn.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9ff44d9fb9de4235ad6b9046731a425c2be0329f36c6d8d31980aa85c71e05a8.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3528
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description bxqhscbt "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1344
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start bxqhscbt
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1808
- 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:684
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4448 -s 1040
  2⤵
  - Program crash
  PID:4728

C:\Windows\SysWOW64\bxqhscbt\zlxffqfn.exe
C:\Windows\SysWOW64\bxqhscbt\zlxffqfn.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9ff44d9fb9de4235ad6b9046731a425c2be0329f36c6d8d31980aa85c71e05a8.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4064
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4944
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4064 -s 516
  2⤵
  - Program crash
  PID:5088

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4448 -ip 4448
1⤵
PID:2532

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4064 -ip 4064
1⤵
PID:4984

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\zlxffqfn.exe

Filesize
14.0MB

MD5
335cfadb712a1585e805f63d77ce3a13

SHA1
22136f7ab012ba99d751c3c1ee1063f6b59d5b4c

SHA256
05e8a865ba948ae0b19439527bf00c8cc615faaf97d152a197b23824ffab8c37

SHA512
d494e28c2594e0fb77bac38078a404fbf03dd952260765c3941529828ac3f6734011f19aec2e51f3980e82d9ac87c14609b041d5af6e081c43e195f0b3abfeac

Download Submit
memory/4064-11-0x0000000000400000-0x0000000000869000-memory.dmp

Filesize
4.4MB

Download
memory/4064-18-0x0000000000400000-0x0000000000869000-memory.dmp

Filesize
4.4MB

Download
memory/4064-12-0x0000000000400000-0x0000000000869000-memory.dmp

Filesize
4.4MB

Download
memory/4448-8-0x0000000000400000-0x0000000000869000-memory.dmp

Filesize
4.4MB

Download
memory/4448-9-0x00000000009B0000-0x00000000009C3000-memory.dmp

Filesize
76KB

Download
memory/4448-1-0x0000000000AE0000-0x0000000000BE0000-memory.dmp

Filesize
1024KB

Download
memory/4448-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4448-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4448-2-0x00000000009B0000-0x00000000009C3000-memory.dmp

Filesize
76KB

Download
memory/4944-15-0x0000000000B40000-0x0000000000B55000-memory.dmp

Filesize
84KB

Download
memory/4944-13-0x0000000000B40000-0x0000000000B55000-memory.dmp

Filesize
84KB

Download
memory/4944-16-0x0000000000B40000-0x0000000000B55000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads