tofsee | e6989d9a9bfec4432d36ac3f6ab78bbc5a26e537454dd86fef8ff870c6375dbc

General

Target

JaffaCakes118_e6989d9a9bfec4432d36ac3f6ab78bbc5a26e537454dd86fef8ff870c6375dbc.exe
Size

243KB
MD5

0951fa631d9b9f6c0b62c55fa8ff1c18
SHA1

1e5b62640051bb5a70aabd3189e3a09c0864e1c7
SHA256

e6989d9a9bfec4432d36ac3f6ab78bbc5a26e537454dd86fef8ff870c6375dbc
SHA512

906bf4be6512c22ed1307fa00feed1590a3e34ba32251640211bbbcc49af33c995f32fb27dcd51fdce525b91fdd1afe1b0a22b6a912f12a521afb29d9e05488c
SSDEEP

6144:TEZQ/ISjbrjw8vNivYFigPcYTzJ8CUlB1NCUw2lqc8:AZMjXjw8vEpgPTPJR2l9

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
4448	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\dzifaxlw\ImagePath = "C:\\Windows\\SysWOW64\\dzifaxlw\\pwufkfth.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_e6989d9a9bfec4432d36ac3f6ab78bbc5a26e537454dd86fef8ff870c6375dbc.exe

Deletes itself 1 IoCs

pid	Process
2384	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3448	pwufkfth.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3448 set thread context of 2384	3448	pwufkfth.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
4344	sc.exe
4876	sc.exe
3996	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 queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3872	4980	WerFault.exe	81
392	3448	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_e6989d9a9bfec4432d36ac3f6ab78bbc5a26e537454dd86fef8ff870c6375dbc.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	pwufkfth.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

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4980 wrote to memory of 4024	4980	JaffaCakes118_e6989d9a9bfec4432d36ac3f6ab78bbc5a26e537454dd86fef8ff870c6375dbc.exe	82
PID 4980 wrote to memory of 4024	4980	JaffaCakes118_e6989d9a9bfec4432d36ac3f6ab78bbc5a26e537454dd86fef8ff870c6375dbc.exe	82
PID 4980 wrote to memory of 4024	4980	JaffaCakes118_e6989d9a9bfec4432d36ac3f6ab78bbc5a26e537454dd86fef8ff870c6375dbc.exe	82
PID 4980 wrote to memory of 3568	4980	JaffaCakes118_e6989d9a9bfec4432d36ac3f6ab78bbc5a26e537454dd86fef8ff870c6375dbc.exe	84
PID 4980 wrote to memory of 3568	4980	JaffaCakes118_e6989d9a9bfec4432d36ac3f6ab78bbc5a26e537454dd86fef8ff870c6375dbc.exe	84
PID 4980 wrote to memory of 3568	4980	JaffaCakes118_e6989d9a9bfec4432d36ac3f6ab78bbc5a26e537454dd86fef8ff870c6375dbc.exe	84
PID 4980 wrote to memory of 4344	4980	JaffaCakes118_e6989d9a9bfec4432d36ac3f6ab78bbc5a26e537454dd86fef8ff870c6375dbc.exe	86
PID 4980 wrote to memory of 4344	4980	JaffaCakes118_e6989d9a9bfec4432d36ac3f6ab78bbc5a26e537454dd86fef8ff870c6375dbc.exe	86
PID 4980 wrote to memory of 4344	4980	JaffaCakes118_e6989d9a9bfec4432d36ac3f6ab78bbc5a26e537454dd86fef8ff870c6375dbc.exe	86
PID 4980 wrote to memory of 4876	4980	JaffaCakes118_e6989d9a9bfec4432d36ac3f6ab78bbc5a26e537454dd86fef8ff870c6375dbc.exe	88
PID 4980 wrote to memory of 4876	4980	JaffaCakes118_e6989d9a9bfec4432d36ac3f6ab78bbc5a26e537454dd86fef8ff870c6375dbc.exe	88
PID 4980 wrote to memory of 4876	4980	JaffaCakes118_e6989d9a9bfec4432d36ac3f6ab78bbc5a26e537454dd86fef8ff870c6375dbc.exe	88
PID 4980 wrote to memory of 3996	4980	JaffaCakes118_e6989d9a9bfec4432d36ac3f6ab78bbc5a26e537454dd86fef8ff870c6375dbc.exe	92
PID 4980 wrote to memory of 3996	4980	JaffaCakes118_e6989d9a9bfec4432d36ac3f6ab78bbc5a26e537454dd86fef8ff870c6375dbc.exe	92
PID 4980 wrote to memory of 3996	4980	JaffaCakes118_e6989d9a9bfec4432d36ac3f6ab78bbc5a26e537454dd86fef8ff870c6375dbc.exe	92
PID 4980 wrote to memory of 4448	4980	JaffaCakes118_e6989d9a9bfec4432d36ac3f6ab78bbc5a26e537454dd86fef8ff870c6375dbc.exe	95
PID 4980 wrote to memory of 4448	4980	JaffaCakes118_e6989d9a9bfec4432d36ac3f6ab78bbc5a26e537454dd86fef8ff870c6375dbc.exe	95
PID 4980 wrote to memory of 4448	4980	JaffaCakes118_e6989d9a9bfec4432d36ac3f6ab78bbc5a26e537454dd86fef8ff870c6375dbc.exe	95
PID 3448 wrote to memory of 2384	3448	pwufkfth.exe	101
PID 3448 wrote to memory of 2384	3448	pwufkfth.exe	101
PID 3448 wrote to memory of 2384	3448	pwufkfth.exe	101
PID 3448 wrote to memory of 2384	3448	pwufkfth.exe	101
PID 3448 wrote to memory of 2384	3448	pwufkfth.exe	101

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e6989d9a9bfec4432d36ac3f6ab78bbc5a26e537454dd86fef8ff870c6375dbc.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e6989d9a9bfec4432d36ac3f6ab78bbc5a26e537454dd86fef8ff870c6375dbc.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4980
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\dzifaxlw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4024
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\pwufkfth.exe" C:\Windows\SysWOW64\dzifaxlw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3568
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create dzifaxlw binPath= "C:\Windows\SysWOW64\dzifaxlw\pwufkfth.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e6989d9a9bfec4432d36ac3f6ab78bbc5a26e537454dd86fef8ff870c6375dbc.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4344
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description dzifaxlw "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4876
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start dzifaxlw
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3996
- 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:4448
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4980 -s 664
  2⤵
  - Program crash
  PID:3872

C:\Windows\SysWOW64\dzifaxlw\pwufkfth.exe
C:\Windows\SysWOW64\dzifaxlw\pwufkfth.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e6989d9a9bfec4432d36ac3f6ab78bbc5a26e537454dd86fef8ff870c6375dbc.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3448
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2384
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3448 -s 512
  2⤵
  - Program crash
  PID:392

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 4980 -ip 4980
1⤵
PID:2752

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 3448 -ip 3448
1⤵
PID:356

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\pwufkfth.exe

Filesize
12.5MB

MD5
059fe0d696b73c5c64afa72ad186244e

SHA1
8eac55e51b57396bc7f0531c70bdf620e44cc7bd

SHA256
c1bd7430b28a08c9c0780087896d1f44602e9f4c267900a714071902242157af

SHA512
f04026dd67edf0babc81e87294c76e0caf5342e77ad88f5cab025d79ba5164d4c78dd1442d8950aea368d3623f81c4e85d2e54661ecc22b28c594c07a01581f4

Download Submit
memory/2384-16-0x0000000000DE0000-0x0000000000DF5000-memory.dmp

Filesize
84KB

Download
memory/2384-17-0x0000000000DE0000-0x0000000000DF5000-memory.dmp

Filesize
84KB

Download
memory/2384-14-0x0000000000DE0000-0x0000000000DF5000-memory.dmp

Filesize
84KB

Download
memory/3448-11-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/3448-12-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/3448-13-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/3448-19-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/4980-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4980-9-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/4980-1-0x00000000005E0000-0x00000000006E0000-memory.dmp

Filesize
1024KB

Download
memory/4980-8-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/4980-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4980-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads