tofsee | 3f9a78351494a13f1dcd0d06b71f86a660ba6cff38c8d0fa3db962153ffcd173

General

Target

2025-02-03_83e82423b4283fbba8c2a0826833314b_mafia.exe
Size

14.7MB
MD5

83e82423b4283fbba8c2a0826833314b
SHA1

6e2fee4e8d675d94f85d7b50ad0594e7fc978f06
SHA256

3f9a78351494a13f1dcd0d06b71f86a660ba6cff38c8d0fa3db962153ffcd173
SHA512

5915c2ed839c5195febcd16485094a1e34014d03194ac5656560af87e65b4c2e886a1e79ab7a73ccb629c3732a57bd766f3874ec48a9417bed96c3531d5eb3d3
SSDEEP

24576:REfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ:qfot

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
3064	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\tfflrom\ImagePath = "C:\\Windows\\SysWOW64\\tfflrom\\dgmgvgrx.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-1-5-21-1121399784-3202166597-3503557106-1000\Control Panel\International\Geo\Nation	2025-02-03_83e82423b4283fbba8c2a0826833314b_mafia.exe

Deletes itself 1 IoCs

pid	Process
2268	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3540	dgmgvgrx.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3540 set thread context of 2268	3540	dgmgvgrx.exe	105

Launches sc.exe 3 IoCs

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

pid	Process
4124	sc.exe
2656	sc.exe
1508	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
3644	632	WerFault.exe	82
3428	3540	WerFault.exe	99

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	2025-02-03_83e82423b4283fbba8c2a0826833314b_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	dgmgvgrx.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	netsh.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 632 wrote to memory of 4120	632	2025-02-03_83e82423b4283fbba8c2a0826833314b_mafia.exe	89
PID 632 wrote to memory of 4120	632	2025-02-03_83e82423b4283fbba8c2a0826833314b_mafia.exe	89
PID 632 wrote to memory of 4120	632	2025-02-03_83e82423b4283fbba8c2a0826833314b_mafia.exe	89
PID 632 wrote to memory of 3892	632	2025-02-03_83e82423b4283fbba8c2a0826833314b_mafia.exe	91
PID 632 wrote to memory of 3892	632	2025-02-03_83e82423b4283fbba8c2a0826833314b_mafia.exe	91
PID 632 wrote to memory of 3892	632	2025-02-03_83e82423b4283fbba8c2a0826833314b_mafia.exe	91
PID 632 wrote to memory of 2656	632	2025-02-03_83e82423b4283fbba8c2a0826833314b_mafia.exe	93
PID 632 wrote to memory of 2656	632	2025-02-03_83e82423b4283fbba8c2a0826833314b_mafia.exe	93
PID 632 wrote to memory of 2656	632	2025-02-03_83e82423b4283fbba8c2a0826833314b_mafia.exe	93
PID 632 wrote to memory of 1508	632	2025-02-03_83e82423b4283fbba8c2a0826833314b_mafia.exe	95
PID 632 wrote to memory of 1508	632	2025-02-03_83e82423b4283fbba8c2a0826833314b_mafia.exe	95
PID 632 wrote to memory of 1508	632	2025-02-03_83e82423b4283fbba8c2a0826833314b_mafia.exe	95
PID 632 wrote to memory of 4124	632	2025-02-03_83e82423b4283fbba8c2a0826833314b_mafia.exe	97
PID 632 wrote to memory of 4124	632	2025-02-03_83e82423b4283fbba8c2a0826833314b_mafia.exe	97
PID 632 wrote to memory of 4124	632	2025-02-03_83e82423b4283fbba8c2a0826833314b_mafia.exe	97
PID 632 wrote to memory of 3064	632	2025-02-03_83e82423b4283fbba8c2a0826833314b_mafia.exe	100
PID 632 wrote to memory of 3064	632	2025-02-03_83e82423b4283fbba8c2a0826833314b_mafia.exe	100
PID 632 wrote to memory of 3064	632	2025-02-03_83e82423b4283fbba8c2a0826833314b_mafia.exe	100
PID 3540 wrote to memory of 2268	3540	dgmgvgrx.exe	105
PID 3540 wrote to memory of 2268	3540	dgmgvgrx.exe	105
PID 3540 wrote to memory of 2268	3540	dgmgvgrx.exe	105
PID 3540 wrote to memory of 2268	3540	dgmgvgrx.exe	105
PID 3540 wrote to memory of 2268	3540	dgmgvgrx.exe	105

C:\Users\Admin\AppData\Local\Temp\2025-02-03_83e82423b4283fbba8c2a0826833314b_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-03_83e82423b4283fbba8c2a0826833314b_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:632
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\tfflrom\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4120
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\dgmgvgrx.exe" C:\Windows\SysWOW64\tfflrom\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3892
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create tfflrom binPath= "C:\Windows\SysWOW64\tfflrom\dgmgvgrx.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-03_83e82423b4283fbba8c2a0826833314b_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2656
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description tfflrom "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1508
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start tfflrom
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4124
- 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:3064
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 632 -s 660
  2⤵
  - Program crash
  PID:3644

C:\Windows\SysWOW64\tfflrom\dgmgvgrx.exe
C:\Windows\SysWOW64\tfflrom\dgmgvgrx.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-03_83e82423b4283fbba8c2a0826833314b_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3540
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2268
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3540 -s 528
  2⤵
  - Program crash
  PID:3428

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 632 -ip 632
1⤵
PID:1908

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3540 -ip 3540
1⤵
PID:2536

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\dgmgvgrx.exe

Filesize
11.7MB

MD5
584ce09d669e0bcff8c295877cd76a36

SHA1
436b5cba687b5ea02e95b1d4c6b897380971acb1

SHA256
3d7ba9cee550d64073f7d4b1fe232e0f2d0e7b16b9389153d993d34cfcb4d5e7

SHA512
74b909417ad5466fcb21e4a92600a547ef31a81da86d029acbb23127f0146ad81cf298b1805b0ffb98c33ef9968208d75aacaec54298b448bf3268e5e65d6363

Download Submit
memory/632-8-0x00000000001E0000-0x00000000001F3000-memory.dmp

Filesize
76KB

Download
memory/632-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/632-2-0x00000000001E0000-0x00000000001F3000-memory.dmp

Filesize
76KB

Download
memory/632-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/632-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/632-1-0x0000000000490000-0x0000000000590000-memory.dmp

Filesize
1024KB

Download
memory/2268-14-0x0000000000CD0000-0x0000000000CE5000-memory.dmp

Filesize
84KB

Download
memory/2268-16-0x0000000000CD0000-0x0000000000CE5000-memory.dmp

Filesize
84KB

Download
memory/2268-17-0x0000000000CD0000-0x0000000000CE5000-memory.dmp

Filesize
84KB

Download
memory/3540-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3540-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3540-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3540-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads