tofsee | 9225795b892568f50097ba1ea2c0cf9872aa3f8c65dc1ad1f4c5a709ae11156f

General

Target

2025-01-11_b88efd6fd62027047f6503b844b1254b_mafia.exe
Size

12.0MB
MD5

b88efd6fd62027047f6503b844b1254b
SHA1

4517af79b45370fbebbe0c232c60a492b6522a21
SHA256

9225795b892568f50097ba1ea2c0cf9872aa3f8c65dc1ad1f4c5a709ae11156f
SHA512

3314dbc99d7f90926f2e2b878bdf32986833f888ae6f58de2e6452592b20f44de0a82a2bcf20daf848257a3da2bb764e570ed10f9791dc546af3b628e9ff1ef4
SSDEEP

24576:OEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZd:nfot

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
3844	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\nsgijfo\ImagePath = "C:\\Windows\\SysWOW64\\nsgijfo\\erdatglv.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	2025-01-11_b88efd6fd62027047f6503b844b1254b_mafia.exe

Deletes itself 1 IoCs

pid	Process
2376	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2856	erdatglv.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2856 set thread context of 2376	2856	erdatglv.exe	108

Launches sc.exe 3 IoCs

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

pid	Process
1968	sc.exe
2960	sc.exe
1336	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
2696	2152	WerFault.exe	84
2864	2856	WerFault.exe	95

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	erdatglv.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-11_b88efd6fd62027047f6503b844b1254b_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2152 wrote to memory of 2680	2152	2025-01-11_b88efd6fd62027047f6503b844b1254b_mafia.exe	85
PID 2152 wrote to memory of 2680	2152	2025-01-11_b88efd6fd62027047f6503b844b1254b_mafia.exe	85
PID 2152 wrote to memory of 2680	2152	2025-01-11_b88efd6fd62027047f6503b844b1254b_mafia.exe	85
PID 2152 wrote to memory of 432	2152	2025-01-11_b88efd6fd62027047f6503b844b1254b_mafia.exe	87
PID 2152 wrote to memory of 432	2152	2025-01-11_b88efd6fd62027047f6503b844b1254b_mafia.exe	87
PID 2152 wrote to memory of 432	2152	2025-01-11_b88efd6fd62027047f6503b844b1254b_mafia.exe	87
PID 2152 wrote to memory of 1336	2152	2025-01-11_b88efd6fd62027047f6503b844b1254b_mafia.exe	89
PID 2152 wrote to memory of 1336	2152	2025-01-11_b88efd6fd62027047f6503b844b1254b_mafia.exe	89
PID 2152 wrote to memory of 1336	2152	2025-01-11_b88efd6fd62027047f6503b844b1254b_mafia.exe	89
PID 2152 wrote to memory of 1968	2152	2025-01-11_b88efd6fd62027047f6503b844b1254b_mafia.exe	91
PID 2152 wrote to memory of 1968	2152	2025-01-11_b88efd6fd62027047f6503b844b1254b_mafia.exe	91
PID 2152 wrote to memory of 1968	2152	2025-01-11_b88efd6fd62027047f6503b844b1254b_mafia.exe	91
PID 2152 wrote to memory of 2960	2152	2025-01-11_b88efd6fd62027047f6503b844b1254b_mafia.exe	93
PID 2152 wrote to memory of 2960	2152	2025-01-11_b88efd6fd62027047f6503b844b1254b_mafia.exe	93
PID 2152 wrote to memory of 2960	2152	2025-01-11_b88efd6fd62027047f6503b844b1254b_mafia.exe	93
PID 2152 wrote to memory of 3844	2152	2025-01-11_b88efd6fd62027047f6503b844b1254b_mafia.exe	96
PID 2152 wrote to memory of 3844	2152	2025-01-11_b88efd6fd62027047f6503b844b1254b_mafia.exe	96
PID 2152 wrote to memory of 3844	2152	2025-01-11_b88efd6fd62027047f6503b844b1254b_mafia.exe	96
PID 2856 wrote to memory of 2376	2856	erdatglv.exe	108
PID 2856 wrote to memory of 2376	2856	erdatglv.exe	108
PID 2856 wrote to memory of 2376	2856	erdatglv.exe	108
PID 2856 wrote to memory of 2376	2856	erdatglv.exe	108
PID 2856 wrote to memory of 2376	2856	erdatglv.exe	108

C:\Users\Admin\AppData\Local\Temp\2025-01-11_b88efd6fd62027047f6503b844b1254b_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-11_b88efd6fd62027047f6503b844b1254b_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2152
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\nsgijfo\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2680
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\erdatglv.exe" C:\Windows\SysWOW64\nsgijfo\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:432
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create nsgijfo binPath= "C:\Windows\SysWOW64\nsgijfo\erdatglv.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-11_b88efd6fd62027047f6503b844b1254b_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1336
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description nsgijfo "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1968
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start nsgijfo
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2960
- 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:3844
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2152 -s 1040
  2⤵
  - Program crash
  PID:2696

C:\Windows\SysWOW64\nsgijfo\erdatglv.exe
C:\Windows\SysWOW64\nsgijfo\erdatglv.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-11_b88efd6fd62027047f6503b844b1254b_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2856
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2376
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2856 -s 516
  2⤵
  - Program crash
  PID:2864

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 2152 -ip 2152
1⤵
PID:5012

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 2856 -ip 2856
1⤵
PID:2472

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\erdatglv.exe

Filesize
13.0MB

MD5
25fa6ead976f01f1aa60f8c580081393

SHA1
cdb90f579d08d6c42237069865ca8b49d0c1b547

SHA256
959921b5ba2698f5469a2274a2ba0aa629db04c17ec39d9c89e7588a54478550

SHA512
9a94fa6ed419fc5a51d8006ade12fc658bb6d6a197ab4cff5182f08229b8b13d22ab3873b82a0ab8dd7d1b2a030994593dfd3ba88f6abf79dd44557384e5454d

Download Submit
memory/2152-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2152-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2152-2-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/2152-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2152-8-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/2152-1-0x00000000007B0000-0x00000000008B0000-memory.dmp

Filesize
1024KB

Download
memory/2376-14-0x0000000000FE0000-0x0000000000FF5000-memory.dmp

Filesize
84KB

Download
memory/2376-16-0x0000000000FE0000-0x0000000000FF5000-memory.dmp

Filesize
84KB

Download
memory/2376-17-0x0000000000FE0000-0x0000000000FF5000-memory.dmp

Filesize
84KB

Download
memory/2856-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2856-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2856-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2856-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads