tofsee | ddb2a9fe2ec84d3e59e219c1f76df48096f699633f9074ecff9b692d65f674af

General

Target

2025-02-02_065fcd213148ae2a7cb1baef6e3992be_mafia.exe
Size

10.6MB
MD5

065fcd213148ae2a7cb1baef6e3992be
SHA1

8499e64908ed5c0ec00605337b1e2f992cccf654
SHA256

ddb2a9fe2ec84d3e59e219c1f76df48096f699633f9074ecff9b692d65f674af
SHA512

2e15883e0f2266f14bfa9de0d2ff3c137a366c3839f6ce1633444baf63ab4b3c13c60bd32c0e5ba2ec0e406750d5573589049596b7d17ba048b50eebc1af3ed1
SSDEEP

3072:uLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:3OMdRQr7OB0ypmMXnl8XEPM3noSWOC

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
3504	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\ssuujwxh\ImagePath = "C:\\Windows\\SysWOW64\\ssuujwxh\\xgafxwrn.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-1-5-21-2211717155-842865201-3404093980-1000\Control Panel\International\Geo\Nation	2025-02-02_065fcd213148ae2a7cb1baef6e3992be_mafia.exe

Deletes itself 1 IoCs

pid	Process
3272	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3600	xgafxwrn.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3600 set thread context of 3272	3600	xgafxwrn.exe	103

Launches sc.exe 3 IoCs

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

pid	Process
3784	sc.exe
468	sc.exe
2924	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
3648	3904	WerFault.exe	83
4500	3600	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	2025-02-02_065fcd213148ae2a7cb1baef6e3992be_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	xgafxwrn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3904 wrote to memory of 1900	3904	2025-02-02_065fcd213148ae2a7cb1baef6e3992be_mafia.exe	86
PID 3904 wrote to memory of 1900	3904	2025-02-02_065fcd213148ae2a7cb1baef6e3992be_mafia.exe	86
PID 3904 wrote to memory of 1900	3904	2025-02-02_065fcd213148ae2a7cb1baef6e3992be_mafia.exe	86
PID 3904 wrote to memory of 4328	3904	2025-02-02_065fcd213148ae2a7cb1baef6e3992be_mafia.exe	88
PID 3904 wrote to memory of 4328	3904	2025-02-02_065fcd213148ae2a7cb1baef6e3992be_mafia.exe	88
PID 3904 wrote to memory of 4328	3904	2025-02-02_065fcd213148ae2a7cb1baef6e3992be_mafia.exe	88
PID 3904 wrote to memory of 3784	3904	2025-02-02_065fcd213148ae2a7cb1baef6e3992be_mafia.exe	90
PID 3904 wrote to memory of 3784	3904	2025-02-02_065fcd213148ae2a7cb1baef6e3992be_mafia.exe	90
PID 3904 wrote to memory of 3784	3904	2025-02-02_065fcd213148ae2a7cb1baef6e3992be_mafia.exe	90
PID 3904 wrote to memory of 468	3904	2025-02-02_065fcd213148ae2a7cb1baef6e3992be_mafia.exe	92
PID 3904 wrote to memory of 468	3904	2025-02-02_065fcd213148ae2a7cb1baef6e3992be_mafia.exe	92
PID 3904 wrote to memory of 468	3904	2025-02-02_065fcd213148ae2a7cb1baef6e3992be_mafia.exe	92
PID 3904 wrote to memory of 2924	3904	2025-02-02_065fcd213148ae2a7cb1baef6e3992be_mafia.exe	94
PID 3904 wrote to memory of 2924	3904	2025-02-02_065fcd213148ae2a7cb1baef6e3992be_mafia.exe	94
PID 3904 wrote to memory of 2924	3904	2025-02-02_065fcd213148ae2a7cb1baef6e3992be_mafia.exe	94
PID 3904 wrote to memory of 3504	3904	2025-02-02_065fcd213148ae2a7cb1baef6e3992be_mafia.exe	97
PID 3904 wrote to memory of 3504	3904	2025-02-02_065fcd213148ae2a7cb1baef6e3992be_mafia.exe	97
PID 3904 wrote to memory of 3504	3904	2025-02-02_065fcd213148ae2a7cb1baef6e3992be_mafia.exe	97
PID 3600 wrote to memory of 3272	3600	xgafxwrn.exe	103
PID 3600 wrote to memory of 3272	3600	xgafxwrn.exe	103
PID 3600 wrote to memory of 3272	3600	xgafxwrn.exe	103
PID 3600 wrote to memory of 3272	3600	xgafxwrn.exe	103
PID 3600 wrote to memory of 3272	3600	xgafxwrn.exe	103

C:\Users\Admin\AppData\Local\Temp\2025-02-02_065fcd213148ae2a7cb1baef6e3992be_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-02_065fcd213148ae2a7cb1baef6e3992be_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3904
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ssuujwxh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1900
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\xgafxwrn.exe" C:\Windows\SysWOW64\ssuujwxh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4328
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ssuujwxh binPath= "C:\Windows\SysWOW64\ssuujwxh\xgafxwrn.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-02_065fcd213148ae2a7cb1baef6e3992be_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3784
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ssuujwxh "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:468
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ssuujwxh
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2924
- 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:3504
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3904 -s 1244
  2⤵
  - Program crash
  PID:3648

C:\Windows\SysWOW64\ssuujwxh\xgafxwrn.exe
C:\Windows\SysWOW64\ssuujwxh\xgafxwrn.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-02_065fcd213148ae2a7cb1baef6e3992be_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3600
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3272
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3600 -s 512
  2⤵
  - Program crash
  PID:4500

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3904 -ip 3904
1⤵
PID:232

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 3600 -ip 3600
1⤵
PID:5004

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\xgafxwrn.exe

Filesize
13.5MB

MD5
be58a046ff49fd6c93595fb314dcbb4a

SHA1
5058581348cbf99dd4fbbe570eb32f6ca19713e8

SHA256
aeeece921b4717a3a5ea0d5f8eb581935bdf16ce177bc0f3045f666480b1c090

SHA512
3d8f38fdf6c0935bc44c14928450ee64c56cf6604efe6a367097c199f6de3e47838e03c22463191066d57c4632df7020d423dc4078865fab9d4ad03e34ede10a

Download Submit
memory/3272-14-0x0000000000D70000-0x0000000000D85000-memory.dmp

Filesize
84KB

Download
memory/3272-16-0x0000000000D70000-0x0000000000D85000-memory.dmp

Filesize
84KB

Download
memory/3272-17-0x0000000000D70000-0x0000000000D85000-memory.dmp

Filesize
84KB

Download
memory/3600-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3600-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3600-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3600-19-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3904-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3904-2-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download
memory/3904-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3904-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3904-8-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download
memory/3904-1-0x0000000000630000-0x0000000000730000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads