tofsee | 125855b740b1777ffecc46e376fba8c12e89daa1ac4d4c64c9df5ecc00380b74

General

Target

2025-01-09_bc0920bf926ce5afd4b3bddbe164c661_mafia.exe
Size

10.8MB
MD5

bc0920bf926ce5afd4b3bddbe164c661
SHA1

02d2615da6e80b0f12c8f5af0059034365a7e7c6
SHA256

125855b740b1777ffecc46e376fba8c12e89daa1ac4d4c64c9df5ecc00380b74
SHA512

56f38c84ff5439fe5301fcbc934f8a0212bb535b1e6d41d5207a2b7ce18713eda482557cfa3bec79f3ee77a2e3153c946234230070e2fae85d3a9ab67b5877b5
SSDEEP

6144:1LQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQQ:GTYe+D2jFu+iZoUFhAz

Score

10^/10

tofsee discovery evasion 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

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2916	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\vwfzqumm\ImagePath = "C:\\Windows\\SysWOW64\\vwfzqumm\\kmfqxftj.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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	2025-01-09_bc0920bf926ce5afd4b3bddbe164c661_mafia.exe

Deletes itself 1 IoCs

pid	Process
3268	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1476	kmfqxftj.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1476 set thread context of 3268	1476	kmfqxftj.exe	100

Launches sc.exe 3 IoCs

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

pid	Process
2648	sc.exe
1060	sc.exe
3024	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
220	4884	WerFault.exe	82
3376	1476	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	netsh.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	kmfqxftj.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-09_bc0920bf926ce5afd4b3bddbe164c661_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4884 wrote to memory of 3928	4884	2025-01-09_bc0920bf926ce5afd4b3bddbe164c661_mafia.exe	83
PID 4884 wrote to memory of 3928	4884	2025-01-09_bc0920bf926ce5afd4b3bddbe164c661_mafia.exe	83
PID 4884 wrote to memory of 3928	4884	2025-01-09_bc0920bf926ce5afd4b3bddbe164c661_mafia.exe	83
PID 4884 wrote to memory of 2204	4884	2025-01-09_bc0920bf926ce5afd4b3bddbe164c661_mafia.exe	85
PID 4884 wrote to memory of 2204	4884	2025-01-09_bc0920bf926ce5afd4b3bddbe164c661_mafia.exe	85
PID 4884 wrote to memory of 2204	4884	2025-01-09_bc0920bf926ce5afd4b3bddbe164c661_mafia.exe	85
PID 4884 wrote to memory of 2648	4884	2025-01-09_bc0920bf926ce5afd4b3bddbe164c661_mafia.exe	87
PID 4884 wrote to memory of 2648	4884	2025-01-09_bc0920bf926ce5afd4b3bddbe164c661_mafia.exe	87
PID 4884 wrote to memory of 2648	4884	2025-01-09_bc0920bf926ce5afd4b3bddbe164c661_mafia.exe	87
PID 4884 wrote to memory of 1060	4884	2025-01-09_bc0920bf926ce5afd4b3bddbe164c661_mafia.exe	89
PID 4884 wrote to memory of 1060	4884	2025-01-09_bc0920bf926ce5afd4b3bddbe164c661_mafia.exe	89
PID 4884 wrote to memory of 1060	4884	2025-01-09_bc0920bf926ce5afd4b3bddbe164c661_mafia.exe	89
PID 4884 wrote to memory of 3024	4884	2025-01-09_bc0920bf926ce5afd4b3bddbe164c661_mafia.exe	92
PID 4884 wrote to memory of 3024	4884	2025-01-09_bc0920bf926ce5afd4b3bddbe164c661_mafia.exe	92
PID 4884 wrote to memory of 3024	4884	2025-01-09_bc0920bf926ce5afd4b3bddbe164c661_mafia.exe	92
PID 4884 wrote to memory of 2916	4884	2025-01-09_bc0920bf926ce5afd4b3bddbe164c661_mafia.exe	95
PID 4884 wrote to memory of 2916	4884	2025-01-09_bc0920bf926ce5afd4b3bddbe164c661_mafia.exe	95
PID 4884 wrote to memory of 2916	4884	2025-01-09_bc0920bf926ce5afd4b3bddbe164c661_mafia.exe	95
PID 1476 wrote to memory of 3268	1476	kmfqxftj.exe	100
PID 1476 wrote to memory of 3268	1476	kmfqxftj.exe	100
PID 1476 wrote to memory of 3268	1476	kmfqxftj.exe	100
PID 1476 wrote to memory of 3268	1476	kmfqxftj.exe	100
PID 1476 wrote to memory of 3268	1476	kmfqxftj.exe	100

C:\Users\Admin\AppData\Local\Temp\2025-01-09_bc0920bf926ce5afd4b3bddbe164c661_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-09_bc0920bf926ce5afd4b3bddbe164c661_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4884
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\vwfzqumm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3928
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kmfqxftj.exe" C:\Windows\SysWOW64\vwfzqumm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2204
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create vwfzqumm binPath= "C:\Windows\SysWOW64\vwfzqumm\kmfqxftj.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-09_bc0920bf926ce5afd4b3bddbe164c661_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2648
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description vwfzqumm "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1060
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start vwfzqumm
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3024
- 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:2916
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4884 -s 1208
  2⤵
  - Program crash
  PID:220

C:\Windows\SysWOW64\vwfzqumm\kmfqxftj.exe
C:\Windows\SysWOW64\vwfzqumm\kmfqxftj.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-09_bc0920bf926ce5afd4b3bddbe164c661_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1476
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3268
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1476 -s 504
  2⤵
  - Program crash
  PID:3376

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4884 -ip 4884
1⤵
PID:3384

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 1476 -ip 1476
1⤵
PID:5116

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\kmfqxftj.exe

Filesize
13.6MB

MD5
3718c0cb7b270210a33a63ff8c3112a7

SHA1
f638cdac906aca70c105bef19043cd8b2556b77d

SHA256
481040fa375b3aa15f4b82a9f8d51c53deef349c176aeea9ec927a45924e01b3

SHA512
c8d042ebcc698a5c3e223fe56bed00cbe5512ffb63d68c9590b46d91f39715875a85ad3fb7e1ee368a2dc109570be52117b69871819efb47987d191c3668fb1a

Download Submit
memory/1476-8-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/1476-16-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/1476-10-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/1476-9-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/3268-14-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3268-11-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3268-20-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3268-21-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3268-22-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4884-2-0x0000000000530000-0x0000000000543000-memory.dmp

Filesize
76KB

Download
memory/4884-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4884-1-0x0000000000550000-0x0000000000650000-memory.dmp

Filesize
1024KB

Download
memory/4884-19-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4884-18-0x0000000000530000-0x0000000000543000-memory.dmp

Filesize
76KB

Download
memory/4884-17-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads