tofsee | 7d864dab15342d8bc85fcaa9bb271ab6667942fe36dcc6dc10531ac1f7a10393

General

Target

JaffaCakes118_7d864dab15342d8bc85fcaa9bb271ab6667942fe36dcc6dc10531ac1f7a10393.exe
Size

157KB
MD5

3d201b74a8262f54a9e1b4deb21ceb27
SHA1

98373771bf76faa60818e232002f1aa173299476
SHA256

7d864dab15342d8bc85fcaa9bb271ab6667942fe36dcc6dc10531ac1f7a10393
SHA512

9017ac359dcde22358624585d040455b83bd147620b9666365c79cb386fdf35268f4804dbcb2d438567b5d1d24d97ed828709b4ab39efbf6e6e26bf3349563b2
SSDEEP

3072:+RBIdzINvPe8bO+xsCb0xo8oyHkksDlYHQB:SIGVmh+xh01h9H

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
3976	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\uzjnxopj\ImagePath = "C:\\Windows\\SysWOW64\\uzjnxopj\\ejtjxc.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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	JaffaCakes118_7d864dab15342d8bc85fcaa9bb271ab6667942fe36dcc6dc10531ac1f7a10393.exe

Deletes itself 1 IoCs

pid	Process
3504	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4936	ejtjxc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4936 set thread context of 3504	4936	ejtjxc.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
4260	sc.exe
3560	sc.exe
712	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
4160	3460	WerFault.exe	81
1912	4936	WerFault.exe	92

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	ejtjxc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_7d864dab15342d8bc85fcaa9bb271ab6667942fe36dcc6dc10531ac1f7a10393.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 3460 wrote to memory of 4236	3460	JaffaCakes118_7d864dab15342d8bc85fcaa9bb271ab6667942fe36dcc6dc10531ac1f7a10393.exe	82
PID 3460 wrote to memory of 4236	3460	JaffaCakes118_7d864dab15342d8bc85fcaa9bb271ab6667942fe36dcc6dc10531ac1f7a10393.exe	82
PID 3460 wrote to memory of 4236	3460	JaffaCakes118_7d864dab15342d8bc85fcaa9bb271ab6667942fe36dcc6dc10531ac1f7a10393.exe	82
PID 3460 wrote to memory of 1964	3460	JaffaCakes118_7d864dab15342d8bc85fcaa9bb271ab6667942fe36dcc6dc10531ac1f7a10393.exe	84
PID 3460 wrote to memory of 1964	3460	JaffaCakes118_7d864dab15342d8bc85fcaa9bb271ab6667942fe36dcc6dc10531ac1f7a10393.exe	84
PID 3460 wrote to memory of 1964	3460	JaffaCakes118_7d864dab15342d8bc85fcaa9bb271ab6667942fe36dcc6dc10531ac1f7a10393.exe	84
PID 3460 wrote to memory of 4260	3460	JaffaCakes118_7d864dab15342d8bc85fcaa9bb271ab6667942fe36dcc6dc10531ac1f7a10393.exe	86
PID 3460 wrote to memory of 4260	3460	JaffaCakes118_7d864dab15342d8bc85fcaa9bb271ab6667942fe36dcc6dc10531ac1f7a10393.exe	86
PID 3460 wrote to memory of 4260	3460	JaffaCakes118_7d864dab15342d8bc85fcaa9bb271ab6667942fe36dcc6dc10531ac1f7a10393.exe	86
PID 3460 wrote to memory of 3560	3460	JaffaCakes118_7d864dab15342d8bc85fcaa9bb271ab6667942fe36dcc6dc10531ac1f7a10393.exe	88
PID 3460 wrote to memory of 3560	3460	JaffaCakes118_7d864dab15342d8bc85fcaa9bb271ab6667942fe36dcc6dc10531ac1f7a10393.exe	88
PID 3460 wrote to memory of 3560	3460	JaffaCakes118_7d864dab15342d8bc85fcaa9bb271ab6667942fe36dcc6dc10531ac1f7a10393.exe	88
PID 3460 wrote to memory of 712	3460	JaffaCakes118_7d864dab15342d8bc85fcaa9bb271ab6667942fe36dcc6dc10531ac1f7a10393.exe	90
PID 3460 wrote to memory of 712	3460	JaffaCakes118_7d864dab15342d8bc85fcaa9bb271ab6667942fe36dcc6dc10531ac1f7a10393.exe	90
PID 3460 wrote to memory of 712	3460	JaffaCakes118_7d864dab15342d8bc85fcaa9bb271ab6667942fe36dcc6dc10531ac1f7a10393.exe	90
PID 3460 wrote to memory of 3976	3460	JaffaCakes118_7d864dab15342d8bc85fcaa9bb271ab6667942fe36dcc6dc10531ac1f7a10393.exe	93
PID 3460 wrote to memory of 3976	3460	JaffaCakes118_7d864dab15342d8bc85fcaa9bb271ab6667942fe36dcc6dc10531ac1f7a10393.exe	93
PID 3460 wrote to memory of 3976	3460	JaffaCakes118_7d864dab15342d8bc85fcaa9bb271ab6667942fe36dcc6dc10531ac1f7a10393.exe	93
PID 4936 wrote to memory of 3504	4936	ejtjxc.exe	98
PID 4936 wrote to memory of 3504	4936	ejtjxc.exe	98
PID 4936 wrote to memory of 3504	4936	ejtjxc.exe	98
PID 4936 wrote to memory of 3504	4936	ejtjxc.exe	98
PID 4936 wrote to memory of 3504	4936	ejtjxc.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7d864dab15342d8bc85fcaa9bb271ab6667942fe36dcc6dc10531ac1f7a10393.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7d864dab15342d8bc85fcaa9bb271ab6667942fe36dcc6dc10531ac1f7a10393.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3460
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\uzjnxopj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4236
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ejtjxc.exe" C:\Windows\SysWOW64\uzjnxopj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1964
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create uzjnxopj binPath= "C:\Windows\SysWOW64\uzjnxopj\ejtjxc.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7d864dab15342d8bc85fcaa9bb271ab6667942fe36dcc6dc10531ac1f7a10393.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4260
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description uzjnxopj "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3560
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start uzjnxopj
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:712
- 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:3976
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3460 -s 648
  2⤵
  - Program crash
  PID:4160

C:\Windows\SysWOW64\uzjnxopj\ejtjxc.exe
C:\Windows\SysWOW64\uzjnxopj\ejtjxc.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7d864dab15342d8bc85fcaa9bb271ab6667942fe36dcc6dc10531ac1f7a10393.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4936
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3504
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4936 -s 528
  2⤵
  - Program crash
  PID:1912

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3460 -ip 3460
1⤵
PID:4296

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4936 -ip 4936
1⤵
PID:3440

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\ejtjxc.exe

Filesize
14.4MB

MD5
02dc2e59e4bd1bc8d9f581f8eba2fa44

SHA1
d7fe72ec0f2e272d1c5b38c54a95d56c3d77b92d

SHA256
7101ccfab3d1deba1dd675453576984f66fe1e09e295c610639a335ef7f11af9

SHA512
d772c0e90ab5b07ea32fc2fbe9aadaa78d5389823e3608a474b1ba1554b2ebbbebee26d5fbd0b6dc967b416314f455d1ed4de6810a8530f80cb3099d5c8c42c8

Download Submit
memory/3460-12-0x0000000002180000-0x000000000218D000-memory.dmp

Filesize
52KB

Download
memory/3460-14-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3460-1-0x0000000002190000-0x00000000021A3000-memory.dmp

Filesize
76KB

Download
memory/3460-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3460-13-0x0000000002190000-0x00000000021A3000-memory.dmp

Filesize
76KB

Download
memory/3460-0-0x0000000002180000-0x000000000218D000-memory.dmp

Filesize
52KB

Download
memory/3460-11-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/3504-9-0x0000000001010000-0x0000000001025000-memory.dmp

Filesize
84KB

Download
memory/3504-16-0x0000000001010000-0x0000000001025000-memory.dmp

Filesize
84KB

Download
memory/3504-17-0x0000000001010000-0x0000000001025000-memory.dmp

Filesize
84KB

Download
memory/4936-8-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/4936-6-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/4936-7-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/4936-15-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads