tofsee | d038091e7be4a1ca2830a3662a28ff1ef0300ebecd5b1051525b88cbc0f30988

General

Target

2025-02-07_95504588c01b1f77d656f20c48c78884_mafia.exe
Size

14.0MB
MD5

95504588c01b1f77d656f20c48c78884
SHA1

2b50d1be602f11690f75d426fb8fd057c718d11c
SHA256

d038091e7be4a1ca2830a3662a28ff1ef0300ebecd5b1051525b88cbc0f30988
SHA512

c0d6b7639b9fff61ef9dbfd0dfc7ccad90ace0f7615b540c6fc677dafcc6c92fd9e3e1c82c27782eddd9b711c60112b09642393c51596e26fcade4d91da408ba
SSDEEP

24576:+6WdLQkyQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQx:vWdLQkb

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
3232	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\uvzeqjli\ImagePath = "C:\\Windows\\SysWOW64\\uvzeqjli\\ruaujufl.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-1-5-21-1412605595-2147700071-3468511006-1000\Control Panel\International\Geo\Nation	2025-02-07_95504588c01b1f77d656f20c48c78884_mafia.exe

Deletes itself 1 IoCs

pid	Process
3528	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4084	ruaujufl.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4084 set thread context of 3528	4084	ruaujufl.exe	103

Launches sc.exe 3 IoCs

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

pid	Process
3628	sc.exe
4128	sc.exe
4728	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1868	2992	WerFault.exe	83
1908	4084	WerFault.exe	97

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	2025-02-07_95504588c01b1f77d656f20c48c78884_mafia.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	ruaujufl.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

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2992 wrote to memory of 4596	2992	2025-02-07_95504588c01b1f77d656f20c48c78884_mafia.exe	87
PID 2992 wrote to memory of 4596	2992	2025-02-07_95504588c01b1f77d656f20c48c78884_mafia.exe	87
PID 2992 wrote to memory of 4596	2992	2025-02-07_95504588c01b1f77d656f20c48c78884_mafia.exe	87
PID 2992 wrote to memory of 2596	2992	2025-02-07_95504588c01b1f77d656f20c48c78884_mafia.exe	89
PID 2992 wrote to memory of 2596	2992	2025-02-07_95504588c01b1f77d656f20c48c78884_mafia.exe	89
PID 2992 wrote to memory of 2596	2992	2025-02-07_95504588c01b1f77d656f20c48c78884_mafia.exe	89
PID 2992 wrote to memory of 3628	2992	2025-02-07_95504588c01b1f77d656f20c48c78884_mafia.exe	91
PID 2992 wrote to memory of 3628	2992	2025-02-07_95504588c01b1f77d656f20c48c78884_mafia.exe	91
PID 2992 wrote to memory of 3628	2992	2025-02-07_95504588c01b1f77d656f20c48c78884_mafia.exe	91
PID 2992 wrote to memory of 4128	2992	2025-02-07_95504588c01b1f77d656f20c48c78884_mafia.exe	93
PID 2992 wrote to memory of 4128	2992	2025-02-07_95504588c01b1f77d656f20c48c78884_mafia.exe	93
PID 2992 wrote to memory of 4128	2992	2025-02-07_95504588c01b1f77d656f20c48c78884_mafia.exe	93
PID 2992 wrote to memory of 4728	2992	2025-02-07_95504588c01b1f77d656f20c48c78884_mafia.exe	95
PID 2992 wrote to memory of 4728	2992	2025-02-07_95504588c01b1f77d656f20c48c78884_mafia.exe	95
PID 2992 wrote to memory of 4728	2992	2025-02-07_95504588c01b1f77d656f20c48c78884_mafia.exe	95
PID 2992 wrote to memory of 3232	2992	2025-02-07_95504588c01b1f77d656f20c48c78884_mafia.exe	98
PID 2992 wrote to memory of 3232	2992	2025-02-07_95504588c01b1f77d656f20c48c78884_mafia.exe	98
PID 2992 wrote to memory of 3232	2992	2025-02-07_95504588c01b1f77d656f20c48c78884_mafia.exe	98
PID 4084 wrote to memory of 3528	4084	ruaujufl.exe	103
PID 4084 wrote to memory of 3528	4084	ruaujufl.exe	103
PID 4084 wrote to memory of 3528	4084	ruaujufl.exe	103
PID 4084 wrote to memory of 3528	4084	ruaujufl.exe	103
PID 4084 wrote to memory of 3528	4084	ruaujufl.exe	103

C:\Users\Admin\AppData\Local\Temp\2025-02-07_95504588c01b1f77d656f20c48c78884_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-07_95504588c01b1f77d656f20c48c78884_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2992
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\uvzeqjli\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4596
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ruaujufl.exe" C:\Windows\SysWOW64\uvzeqjli\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2596
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create uvzeqjli binPath= "C:\Windows\SysWOW64\uvzeqjli\ruaujufl.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-07_95504588c01b1f77d656f20c48c78884_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3628
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description uvzeqjli "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4128
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start uvzeqjli
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4728
- 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:3232
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2992 -s 1044
  2⤵
  - Program crash
  PID:1868

C:\Windows\SysWOW64\uvzeqjli\ruaujufl.exe
C:\Windows\SysWOW64\uvzeqjli\ruaujufl.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-07_95504588c01b1f77d656f20c48c78884_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4084
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3528
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4084 -s 512
  2⤵
  - Program crash
  PID:1908

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 2992 -ip 2992
1⤵
PID:1440

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 4084 -ip 4084
1⤵
PID:4932

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\ruaujufl.exe

Filesize
12.6MB

MD5
3175392060f702208bb4699f9ccc332b

SHA1
cc48eb8a3fbd11928192048f99752cbe37a9fdf1

SHA256
ea89b739e9c42c14e391239cde71960e6ab5d72698f32a5ac72b9821f0c46379

SHA512
0c0200ae6f76ef147bbbfcb904e88142186fc3788f5b021fe5f213a0401fbfe7b585cf519ac8ee20bee18b1ff20d01d0b74114820844d752e7ba8d3f8cf54dbe

Download Submit
memory/2992-7-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2992-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2992-2-0x00000000001E0000-0x00000000001F3000-memory.dmp

Filesize
76KB

Download
memory/2992-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2992-8-0x00000000001E0000-0x00000000001F3000-memory.dmp

Filesize
76KB

Download
memory/2992-1-0x00000000005F0000-0x00000000006F0000-memory.dmp

Filesize
1024KB

Download
memory/3528-16-0x0000000000800000-0x0000000000815000-memory.dmp

Filesize
84KB

Download
memory/3528-14-0x0000000000800000-0x0000000000815000-memory.dmp

Filesize
84KB

Download
memory/3528-17-0x0000000000800000-0x0000000000815000-memory.dmp

Filesize
84KB

Download
memory/4084-11-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/4084-13-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/4084-12-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/4084-18-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads