tofsee | 03a239c50ad79fc193158e7b7750bc9c950ff2efa27003f80c54993a4605c1b0

General

Target

03a239c50ad79fc193158e7b7750bc9c950ff2efa27003f80c54993a4605c1b0.exe
Size

12.9MB
MD5

8556b989b136705da62e8181b8e1b066
SHA1

8ab93dd9d5bd43efb00c8d027f08ecd5d1adf96b
SHA256

03a239c50ad79fc193158e7b7750bc9c950ff2efa27003f80c54993a4605c1b0
SHA512

e45b2343243e9a73f6edbdd75ace557bd33b887adc29408378d606246227f6b4ed5d006b14b8a37c62a165bdccafa46271a86aa1cb138573066553dda5159cf7
SSDEEP

49152:ukHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHP:N

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
2392	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\unbpjabh\ImagePath = "C:\\Windows\\SysWOW64\\unbpjabh\\nscsgl.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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	03a239c50ad79fc193158e7b7750bc9c950ff2efa27003f80c54993a4605c1b0.exe

Deletes itself 1 IoCs

pid	Process
4224	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3736	nscsgl.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3736 set thread context of 4224	3736	nscsgl.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
2408	sc.exe
336	sc.exe
1608	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
1624	5004	WerFault.exe	81
4516	3736	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	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	nscsgl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	03a239c50ad79fc193158e7b7750bc9c950ff2efa27003f80c54993a4605c1b0.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	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 5004 wrote to memory of 1468	5004	03a239c50ad79fc193158e7b7750bc9c950ff2efa27003f80c54993a4605c1b0.exe	82
PID 5004 wrote to memory of 1468	5004	03a239c50ad79fc193158e7b7750bc9c950ff2efa27003f80c54993a4605c1b0.exe	82
PID 5004 wrote to memory of 1468	5004	03a239c50ad79fc193158e7b7750bc9c950ff2efa27003f80c54993a4605c1b0.exe	82
PID 5004 wrote to memory of 708	5004	03a239c50ad79fc193158e7b7750bc9c950ff2efa27003f80c54993a4605c1b0.exe	84
PID 5004 wrote to memory of 708	5004	03a239c50ad79fc193158e7b7750bc9c950ff2efa27003f80c54993a4605c1b0.exe	84
PID 5004 wrote to memory of 708	5004	03a239c50ad79fc193158e7b7750bc9c950ff2efa27003f80c54993a4605c1b0.exe	84
PID 5004 wrote to memory of 2408	5004	03a239c50ad79fc193158e7b7750bc9c950ff2efa27003f80c54993a4605c1b0.exe	86
PID 5004 wrote to memory of 2408	5004	03a239c50ad79fc193158e7b7750bc9c950ff2efa27003f80c54993a4605c1b0.exe	86
PID 5004 wrote to memory of 2408	5004	03a239c50ad79fc193158e7b7750bc9c950ff2efa27003f80c54993a4605c1b0.exe	86
PID 5004 wrote to memory of 336	5004	03a239c50ad79fc193158e7b7750bc9c950ff2efa27003f80c54993a4605c1b0.exe	90
PID 5004 wrote to memory of 336	5004	03a239c50ad79fc193158e7b7750bc9c950ff2efa27003f80c54993a4605c1b0.exe	90
PID 5004 wrote to memory of 336	5004	03a239c50ad79fc193158e7b7750bc9c950ff2efa27003f80c54993a4605c1b0.exe	90
PID 5004 wrote to memory of 1608	5004	03a239c50ad79fc193158e7b7750bc9c950ff2efa27003f80c54993a4605c1b0.exe	92
PID 5004 wrote to memory of 1608	5004	03a239c50ad79fc193158e7b7750bc9c950ff2efa27003f80c54993a4605c1b0.exe	92
PID 5004 wrote to memory of 1608	5004	03a239c50ad79fc193158e7b7750bc9c950ff2efa27003f80c54993a4605c1b0.exe	92
PID 5004 wrote to memory of 2392	5004	03a239c50ad79fc193158e7b7750bc9c950ff2efa27003f80c54993a4605c1b0.exe	95
PID 5004 wrote to memory of 2392	5004	03a239c50ad79fc193158e7b7750bc9c950ff2efa27003f80c54993a4605c1b0.exe	95
PID 5004 wrote to memory of 2392	5004	03a239c50ad79fc193158e7b7750bc9c950ff2efa27003f80c54993a4605c1b0.exe	95
PID 3736 wrote to memory of 4224	3736	nscsgl.exe	102
PID 3736 wrote to memory of 4224	3736	nscsgl.exe	102
PID 3736 wrote to memory of 4224	3736	nscsgl.exe	102
PID 3736 wrote to memory of 4224	3736	nscsgl.exe	102
PID 3736 wrote to memory of 4224	3736	nscsgl.exe	102

C:\Users\Admin\AppData\Local\Temp\03a239c50ad79fc193158e7b7750bc9c950ff2efa27003f80c54993a4605c1b0.exe
"C:\Users\Admin\AppData\Local\Temp\03a239c50ad79fc193158e7b7750bc9c950ff2efa27003f80c54993a4605c1b0.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5004
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\unbpjabh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1468
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\nscsgl.exe" C:\Windows\SysWOW64\unbpjabh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:708
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create unbpjabh binPath= "C:\Windows\SysWOW64\unbpjabh\nscsgl.exe /d\"C:\Users\Admin\AppData\Local\Temp\03a239c50ad79fc193158e7b7750bc9c950ff2efa27003f80c54993a4605c1b0.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2408
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description unbpjabh "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:336
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start unbpjabh
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1608
- 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:2392
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5004 -s 796
  2⤵
  - Program crash
  PID:1624

C:\Windows\SysWOW64\unbpjabh\nscsgl.exe
C:\Windows\SysWOW64\unbpjabh\nscsgl.exe /d"C:\Users\Admin\AppData\Local\Temp\03a239c50ad79fc193158e7b7750bc9c950ff2efa27003f80c54993a4605c1b0.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3736
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4224
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3736 -s 516
  2⤵
  - Program crash
  PID:4516

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 5004 -ip 5004
1⤵
PID:3300

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 3736 -ip 3736
1⤵
PID:4636

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\nscsgl.exe

Filesize
10.9MB

MD5
eb7b2183d0fb0f37b06d2a30eb8e3d02

SHA1
a7ae090a6f203b254ec92b8daa6110f9dac0ab85

SHA256
9b67b008d699438ba43f947717bb75029d20c8bb86b5b0eead44cabf6717807f

SHA512
a6bf3961ef907143adecb5cba4d3dc1f9c07bfc869745ee517a2d01d76ad7513fe3850a78cec0ecf6955692f78008e5bd93c0081e546548903f1676acbf1805c

Download Submit
memory/3736-11-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/3736-17-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/4224-12-0x0000000000340000-0x0000000000355000-memory.dmp

Filesize
84KB

Download
memory/4224-14-0x0000000000340000-0x0000000000355000-memory.dmp

Filesize
84KB

Download
memory/4224-15-0x0000000000340000-0x0000000000355000-memory.dmp

Filesize
84KB

Download
memory/5004-1-0x0000000000A70000-0x0000000000B70000-memory.dmp

Filesize
1024KB

Download
memory/5004-2-0x0000000000A40000-0x0000000000A53000-memory.dmp

Filesize
76KB

Download
memory/5004-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/5004-8-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/5004-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/5004-9-0x0000000000A40000-0x0000000000A53000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads