tofsee | 59a4252fc5f03645821316b1d732ff452368561d8c4b2afd22bf2feb7dd98388

General

Target

2025-01-30_f0bfff82b4873196d13a495b6b655055_mafia.exe
Size

13.1MB
MD5

f0bfff82b4873196d13a495b6b655055
SHA1

e0e570d3002dfcc34c0cbf1adf78ee311bd8b2fe
SHA256

59a4252fc5f03645821316b1d732ff452368561d8c4b2afd22bf2feb7dd98388
SHA512

b8e2c7e5d81710036c95c1820f83e03bf4093345570790509417224d77c935864b5114562740400353f0af9241331f0e00afa9a4dff43b568d51263d6771a691
SSDEEP

49152:XqE0YKr3fYPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPJ:XqtYc3m

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
3964	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\jtebquaz\ImagePath = "C:\\Windows\\SysWOW64\\jtebquaz\\tvqwpcm.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-1-5-21-4003209913-3868522715-854928974-1000\Control Panel\International\Geo\Nation	2025-01-30_f0bfff82b4873196d13a495b6b655055_mafia.exe

Deletes itself 1 IoCs

pid	Process
3168	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2996	tvqwpcm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2996 set thread context of 3168	2996	tvqwpcm.exe	97

Launches sc.exe 3 IoCs

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

pid	Process
4716	sc.exe
4856	sc.exe
4392	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
4020	2996	WerFault.exe	96
5084	1376	WerFault.exe	82

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	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	tvqwpcm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-30_f0bfff82b4873196d13a495b6b655055_mafia.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 1376 wrote to memory of 1392	1376	2025-01-30_f0bfff82b4873196d13a495b6b655055_mafia.exe	86
PID 1376 wrote to memory of 1392	1376	2025-01-30_f0bfff82b4873196d13a495b6b655055_mafia.exe	86
PID 1376 wrote to memory of 1392	1376	2025-01-30_f0bfff82b4873196d13a495b6b655055_mafia.exe	86
PID 1376 wrote to memory of 116	1376	2025-01-30_f0bfff82b4873196d13a495b6b655055_mafia.exe	88
PID 1376 wrote to memory of 116	1376	2025-01-30_f0bfff82b4873196d13a495b6b655055_mafia.exe	88
PID 1376 wrote to memory of 116	1376	2025-01-30_f0bfff82b4873196d13a495b6b655055_mafia.exe	88
PID 1376 wrote to memory of 4716	1376	2025-01-30_f0bfff82b4873196d13a495b6b655055_mafia.exe	90
PID 1376 wrote to memory of 4716	1376	2025-01-30_f0bfff82b4873196d13a495b6b655055_mafia.exe	90
PID 1376 wrote to memory of 4716	1376	2025-01-30_f0bfff82b4873196d13a495b6b655055_mafia.exe	90
PID 1376 wrote to memory of 4856	1376	2025-01-30_f0bfff82b4873196d13a495b6b655055_mafia.exe	92
PID 1376 wrote to memory of 4856	1376	2025-01-30_f0bfff82b4873196d13a495b6b655055_mafia.exe	92
PID 1376 wrote to memory of 4856	1376	2025-01-30_f0bfff82b4873196d13a495b6b655055_mafia.exe	92
PID 1376 wrote to memory of 4392	1376	2025-01-30_f0bfff82b4873196d13a495b6b655055_mafia.exe	94
PID 1376 wrote to memory of 4392	1376	2025-01-30_f0bfff82b4873196d13a495b6b655055_mafia.exe	94
PID 1376 wrote to memory of 4392	1376	2025-01-30_f0bfff82b4873196d13a495b6b655055_mafia.exe	94
PID 2996 wrote to memory of 3168	2996	tvqwpcm.exe	97
PID 2996 wrote to memory of 3168	2996	tvqwpcm.exe	97
PID 2996 wrote to memory of 3168	2996	tvqwpcm.exe	97
PID 2996 wrote to memory of 3168	2996	tvqwpcm.exe	97
PID 2996 wrote to memory of 3168	2996	tvqwpcm.exe	97
PID 1376 wrote to memory of 3964	1376	2025-01-30_f0bfff82b4873196d13a495b6b655055_mafia.exe	99
PID 1376 wrote to memory of 3964	1376	2025-01-30_f0bfff82b4873196d13a495b6b655055_mafia.exe	99
PID 1376 wrote to memory of 3964	1376	2025-01-30_f0bfff82b4873196d13a495b6b655055_mafia.exe	99

C:\Users\Admin\AppData\Local\Temp\2025-01-30_f0bfff82b4873196d13a495b6b655055_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-30_f0bfff82b4873196d13a495b6b655055_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1376
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\jtebquaz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1392
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tvqwpcm.exe" C:\Windows\SysWOW64\jtebquaz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:116
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create jtebquaz binPath= "C:\Windows\SysWOW64\jtebquaz\tvqwpcm.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-30_f0bfff82b4873196d13a495b6b655055_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4716
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description jtebquaz "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4856
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start jtebquaz
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4392
- 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:3964
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1376 -s 1244
  2⤵
  - Program crash
  PID:5084

C:\Windows\SysWOW64\jtebquaz\tvqwpcm.exe
C:\Windows\SysWOW64\jtebquaz\tvqwpcm.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-30_f0bfff82b4873196d13a495b6b655055_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2996
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3168
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2996 -s 536
  2⤵
  - Program crash
  PID:4020

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 1376 -ip 1376
1⤵
PID:1576

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 2996 -ip 2996
1⤵
PID:4560

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\tvqwpcm.exe

Filesize
13.9MB

MD5
ca41860ec1f03bd67b01bc6127b65ef4

SHA1
1c5055adc75d7811235cc3ead4dc5cecedd03a0a

SHA256
ba5597e8b5f86dd96feb3db8809277b1c86e883988c5bf9d6df4e3c37600c0ee

SHA512
0d638a9f118da10deb4eac91f9adcea9269b2198bf020ad2910bd849b59c2caf6797e9ebfe9952d4234000b0fffeebcf82332fdca6d9957de035c13be9c6c957

Download Submit
memory/1376-1-0x0000000002E80000-0x0000000002F80000-memory.dmp

Filesize
1024KB

Download
memory/1376-2-0x0000000002E10000-0x0000000002E23000-memory.dmp

Filesize
76KB

Download
memory/1376-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1376-13-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1376-12-0x0000000002E10000-0x0000000002E23000-memory.dmp

Filesize
76KB

Download
memory/1376-11-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/2996-10-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/3168-8-0x0000000000EE0000-0x0000000000EF5000-memory.dmp

Filesize
84KB

Download
memory/3168-14-0x0000000000EE0000-0x0000000000EF5000-memory.dmp

Filesize
84KB

Download
memory/3168-15-0x0000000000EE0000-0x0000000000EF5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads