tofsee | a51519e61a97c8604ee59ff7d041604094d7f75e3c5c15c59cebee44eb8d7146

General

Target

2025-01-24_ea224388b4e876dc9b37724ee20f15f3_mafia.exe
Size

13.2MB
MD5

ea224388b4e876dc9b37724ee20f15f3
SHA1

0d5a7b79e2775a3927aacf1a619f256bca67f23c
SHA256

a51519e61a97c8604ee59ff7d041604094d7f75e3c5c15c59cebee44eb8d7146
SHA512

f47274f54587cbba207e4b19c8ed5d744e2881afca6e74de4364acc88b75d8eb3a5e810330a16e7e586e35089e59cc1391195a19f703062566128b990ad904bb
SSDEEP

393216:cXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX:

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
2468	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\fvwlcagc\ImagePath = "C:\\Windows\\SysWOW64\\fvwlcagc\\omvwfbqm.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	2025-01-24_ea224388b4e876dc9b37724ee20f15f3_mafia.exe

Deletes itself 1 IoCs

pid	Process
1900	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4820	omvwfbqm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4820 set thread context of 1900	4820	omvwfbqm.exe	97

Launches sc.exe 3 IoCs

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

pid	Process
1120	sc.exe
3624	sc.exe
4064	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

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	netsh.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	omvwfbqm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-24_ea224388b4e876dc9b37724ee20f15f3_mafia.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1956 wrote to memory of 3776	1956	2025-01-24_ea224388b4e876dc9b37724ee20f15f3_mafia.exe	83
PID 1956 wrote to memory of 3776	1956	2025-01-24_ea224388b4e876dc9b37724ee20f15f3_mafia.exe	83
PID 1956 wrote to memory of 3776	1956	2025-01-24_ea224388b4e876dc9b37724ee20f15f3_mafia.exe	83
PID 1956 wrote to memory of 3520	1956	2025-01-24_ea224388b4e876dc9b37724ee20f15f3_mafia.exe	85
PID 1956 wrote to memory of 3520	1956	2025-01-24_ea224388b4e876dc9b37724ee20f15f3_mafia.exe	85
PID 1956 wrote to memory of 3520	1956	2025-01-24_ea224388b4e876dc9b37724ee20f15f3_mafia.exe	85
PID 1956 wrote to memory of 1120	1956	2025-01-24_ea224388b4e876dc9b37724ee20f15f3_mafia.exe	87
PID 1956 wrote to memory of 1120	1956	2025-01-24_ea224388b4e876dc9b37724ee20f15f3_mafia.exe	87
PID 1956 wrote to memory of 1120	1956	2025-01-24_ea224388b4e876dc9b37724ee20f15f3_mafia.exe	87
PID 1956 wrote to memory of 3624	1956	2025-01-24_ea224388b4e876dc9b37724ee20f15f3_mafia.exe	89
PID 1956 wrote to memory of 3624	1956	2025-01-24_ea224388b4e876dc9b37724ee20f15f3_mafia.exe	89
PID 1956 wrote to memory of 3624	1956	2025-01-24_ea224388b4e876dc9b37724ee20f15f3_mafia.exe	89
PID 1956 wrote to memory of 4064	1956	2025-01-24_ea224388b4e876dc9b37724ee20f15f3_mafia.exe	92
PID 1956 wrote to memory of 4064	1956	2025-01-24_ea224388b4e876dc9b37724ee20f15f3_mafia.exe	92
PID 1956 wrote to memory of 4064	1956	2025-01-24_ea224388b4e876dc9b37724ee20f15f3_mafia.exe	92
PID 1956 wrote to memory of 2468	1956	2025-01-24_ea224388b4e876dc9b37724ee20f15f3_mafia.exe	95
PID 1956 wrote to memory of 2468	1956	2025-01-24_ea224388b4e876dc9b37724ee20f15f3_mafia.exe	95
PID 1956 wrote to memory of 2468	1956	2025-01-24_ea224388b4e876dc9b37724ee20f15f3_mafia.exe	95
PID 4820 wrote to memory of 1900	4820	omvwfbqm.exe	97
PID 4820 wrote to memory of 1900	4820	omvwfbqm.exe	97
PID 4820 wrote to memory of 1900	4820	omvwfbqm.exe	97
PID 4820 wrote to memory of 1900	4820	omvwfbqm.exe	97
PID 4820 wrote to memory of 1900	4820	omvwfbqm.exe	97

C:\Users\Admin\AppData\Local\Temp\2025-01-24_ea224388b4e876dc9b37724ee20f15f3_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-24_ea224388b4e876dc9b37724ee20f15f3_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1956
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\fvwlcagc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3776
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\omvwfbqm.exe" C:\Windows\SysWOW64\fvwlcagc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3520
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create fvwlcagc binPath= "C:\Windows\SysWOW64\fvwlcagc\omvwfbqm.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-24_ea224388b4e876dc9b37724ee20f15f3_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1120
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description fvwlcagc "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3624
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start fvwlcagc
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4064
- 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:2468

C:\Windows\SysWOW64\fvwlcagc\omvwfbqm.exe
C:\Windows\SysWOW64\fvwlcagc\omvwfbqm.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-24_ea224388b4e876dc9b37724ee20f15f3_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4820
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1900

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\omvwfbqm.exe

Filesize
10.5MB

MD5
4caefc324aba9e00e1fd76dea2772593

SHA1
4da9843eef053f71957dfb7a616f5dec55e88f37

SHA256
9b07841e1b412b0365907015ab519cb6ef001fcf0c08ca83faa1cadb9c937cf1

SHA512
be648ec38ef8cb89f79b2f165b35c56dfa0aa624fa13def08a4381a7dcaa12055b59c84a2ed4ab1081fe5d3686371d8d151c11a92c7ae56219bc141df61ccdf0

Download Submit
memory/1900-13-0x0000000000620000-0x0000000000635000-memory.dmp

Filesize
84KB

Download
memory/1900-21-0x0000000000620000-0x0000000000635000-memory.dmp

Filesize
84KB

Download
memory/1900-20-0x0000000000620000-0x0000000000635000-memory.dmp

Filesize
84KB

Download
memory/1900-19-0x0000000000620000-0x0000000000635000-memory.dmp

Filesize
84KB

Download
memory/1900-18-0x0000000000620000-0x0000000000635000-memory.dmp

Filesize
84KB

Download
memory/1900-17-0x0000000000620000-0x0000000000635000-memory.dmp

Filesize
84KB

Download
memory/1956-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1956-7-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/1956-8-0x0000000000580000-0x0000000000593000-memory.dmp

Filesize
76KB

Download
memory/1956-2-0x0000000000580000-0x0000000000593000-memory.dmp

Filesize
76KB

Download
memory/1956-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1956-1-0x00000000007C0000-0x00000000008C0000-memory.dmp

Filesize
1024KB

Download
memory/4820-12-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/4820-15-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/4820-11-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads