tofsee | 593365bbf1e3ac18c9b361d89c8d80471e90bc0606ccd0a02342b56b0129aee3

General

Target

2025-01-27_b6c4b7d510df5fadfb81ebb1348f930f_mafia.exe
Size

14.9MB
MD5

b6c4b7d510df5fadfb81ebb1348f930f
SHA1

38db2673c1136571266d4c399205660bc13f5c9d
SHA256

593365bbf1e3ac18c9b361d89c8d80471e90bc0606ccd0a02342b56b0129aee3
SHA512

508ab1a9f384d77c9d80703e9966cc08e353ace669f84f72c74e49942a8bef94221f835d3ed04ebbf60930d68b3a8d7a4c523e1a44fd7bc391e86b15cadc703b
SSDEEP

3072:sLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:JOMdRQr7OB0ypmMXnl8XEPM3noSWOC

Score

10^/10

tofsee defense_evasion discovery execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.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

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
4304	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\prhktfh\ImagePath = "C:\\Windows\\SysWOW64\\prhktfh\\jjkvqrpx.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	2025-01-27_b6c4b7d510df5fadfb81ebb1348f930f_mafia.exe

Deletes itself 1 IoCs

pid	Process
3656	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4228	jjkvqrpx.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4228 set thread context of 3656	4228	jjkvqrpx.exe	103

Launches sc.exe 3 IoCs

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

pid	Process
1640	sc.exe
3012	sc.exe
2548	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
2324	4016	WerFault.exe	81
3364	4228	WerFault.exe	96

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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-27_b6c4b7d510df5fadfb81ebb1348f930f_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jjkvqrpx.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4016 wrote to memory of 5000	4016	2025-01-27_b6c4b7d510df5fadfb81ebb1348f930f_mafia.exe	82
PID 4016 wrote to memory of 5000	4016	2025-01-27_b6c4b7d510df5fadfb81ebb1348f930f_mafia.exe	82
PID 4016 wrote to memory of 5000	4016	2025-01-27_b6c4b7d510df5fadfb81ebb1348f930f_mafia.exe	82
PID 4016 wrote to memory of 3348	4016	2025-01-27_b6c4b7d510df5fadfb81ebb1348f930f_mafia.exe	86
PID 4016 wrote to memory of 3348	4016	2025-01-27_b6c4b7d510df5fadfb81ebb1348f930f_mafia.exe	86
PID 4016 wrote to memory of 3348	4016	2025-01-27_b6c4b7d510df5fadfb81ebb1348f930f_mafia.exe	86
PID 4016 wrote to memory of 1640	4016	2025-01-27_b6c4b7d510df5fadfb81ebb1348f930f_mafia.exe	88
PID 4016 wrote to memory of 1640	4016	2025-01-27_b6c4b7d510df5fadfb81ebb1348f930f_mafia.exe	88
PID 4016 wrote to memory of 1640	4016	2025-01-27_b6c4b7d510df5fadfb81ebb1348f930f_mafia.exe	88
PID 4016 wrote to memory of 3012	4016	2025-01-27_b6c4b7d510df5fadfb81ebb1348f930f_mafia.exe	92
PID 4016 wrote to memory of 3012	4016	2025-01-27_b6c4b7d510df5fadfb81ebb1348f930f_mafia.exe	92
PID 4016 wrote to memory of 3012	4016	2025-01-27_b6c4b7d510df5fadfb81ebb1348f930f_mafia.exe	92
PID 4016 wrote to memory of 2548	4016	2025-01-27_b6c4b7d510df5fadfb81ebb1348f930f_mafia.exe	94
PID 4016 wrote to memory of 2548	4016	2025-01-27_b6c4b7d510df5fadfb81ebb1348f930f_mafia.exe	94
PID 4016 wrote to memory of 2548	4016	2025-01-27_b6c4b7d510df5fadfb81ebb1348f930f_mafia.exe	94
PID 4016 wrote to memory of 4304	4016	2025-01-27_b6c4b7d510df5fadfb81ebb1348f930f_mafia.exe	97
PID 4016 wrote to memory of 4304	4016	2025-01-27_b6c4b7d510df5fadfb81ebb1348f930f_mafia.exe	97
PID 4016 wrote to memory of 4304	4016	2025-01-27_b6c4b7d510df5fadfb81ebb1348f930f_mafia.exe	97
PID 4228 wrote to memory of 3656	4228	jjkvqrpx.exe	103
PID 4228 wrote to memory of 3656	4228	jjkvqrpx.exe	103
PID 4228 wrote to memory of 3656	4228	jjkvqrpx.exe	103
PID 4228 wrote to memory of 3656	4228	jjkvqrpx.exe	103
PID 4228 wrote to memory of 3656	4228	jjkvqrpx.exe	103

C:\Users\Admin\AppData\Local\Temp\2025-01-27_b6c4b7d510df5fadfb81ebb1348f930f_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-27_b6c4b7d510df5fadfb81ebb1348f930f_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4016
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\prhktfh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5000
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jjkvqrpx.exe" C:\Windows\SysWOW64\prhktfh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3348
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create prhktfh binPath= "C:\Windows\SysWOW64\prhktfh\jjkvqrpx.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-27_b6c4b7d510df5fadfb81ebb1348f930f_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1640
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description prhktfh "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3012
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start prhktfh
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2548
- 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:4304
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4016 -s 1180
  2⤵
  - Program crash
  PID:2324

C:\Windows\SysWOW64\prhktfh\jjkvqrpx.exe
C:\Windows\SysWOW64\prhktfh\jjkvqrpx.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-27_b6c4b7d510df5fadfb81ebb1348f930f_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4228
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3656
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4228 -s 508
  2⤵
  - Program crash
  PID:3364

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4016 -ip 4016
1⤵
PID:3596

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 4228 -ip 4228
1⤵
PID:1908

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\jjkvqrpx.exe

Filesize
11.8MB

MD5
d8ae6c631fa8ba6a554cf978f4a74a9e

SHA1
701b3e1c77b37afff715b1a30a0043eba6551378

SHA256
ee8d6b231d7dbc56796328729181201560c94f3012f4287ff366d12089532f7e

SHA512
14a97ff67be77a4e54e8eb26b0727cae11a5305d6ee62d885f784ef3d11df33d034eb9eadd7344a326aed579865a003caf395cf1bc8c3eea2335b9b0209cd4be

Download Submit
memory/3656-14-0x0000000000B60000-0x0000000000B75000-memory.dmp

Filesize
84KB

Download
memory/3656-17-0x0000000000B60000-0x0000000000B75000-memory.dmp

Filesize
84KB

Download
memory/3656-16-0x0000000000B60000-0x0000000000B75000-memory.dmp

Filesize
84KB

Download
memory/4016-8-0x0000000000450000-0x0000000000463000-memory.dmp

Filesize
76KB

Download
memory/4016-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4016-1-0x0000000000470000-0x0000000000570000-memory.dmp

Filesize
1024KB

Download
memory/4016-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4016-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4016-2-0x0000000000450000-0x0000000000463000-memory.dmp

Filesize
76KB

Download
memory/4228-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4228-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4228-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4228-19-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads