tofsee | a737bd18b9e6f84a049a7a74b4e746729bf8a60caba2267d86f468ee20a7409d

Analysis

max time kernel
144s
max time network
122s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
05-02-2025 23:01

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General

Target

2025-02-05_0b402788ae36bf573d6e69354c37f310_mafia.exe
Size

11.1MB
MD5

0b402788ae36bf573d6e69354c37f310
SHA1

7e6265eebfb3fda97e75837d6376fa1386e603b8
SHA256

a737bd18b9e6f84a049a7a74b4e746729bf8a60caba2267d86f468ee20a7409d
SHA512

dd68e8e92ebc8a955149c539df14e4b34276b51c7a1df8233a0a7923a3ac565417dbdf0b0e834ad62198382349dfa23e66994fcf641fea8f8c09f19917ce67e8
SSDEEP

6144:cLQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQG:RTYe+D2jFu+iZoUFhAzH

Score

10^/10

tofsee defense_evasion discovery execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

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

Windows security bypass 2 TTPs 1 IoCs

defense_evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\wgezuixk = "0"	svchost.exe

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
948	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\wgezuixk\ImagePath = "C:\\Windows\\SysWOW64\\wgezuixk\\fzzqbkbd.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2744	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2836	fzzqbkbd.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2836 set thread context of 2744	2836	fzzqbkbd.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
1796	sc.exe
2788	sc.exe
2852	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fzzqbkbd.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-05_0b402788ae36bf573d6e69354c37f310_mafia.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 752 wrote to memory of 2300	752	2025-02-05_0b402788ae36bf573d6e69354c37f310_mafia.exe	31
PID 752 wrote to memory of 2300	752	2025-02-05_0b402788ae36bf573d6e69354c37f310_mafia.exe	31
PID 752 wrote to memory of 2300	752	2025-02-05_0b402788ae36bf573d6e69354c37f310_mafia.exe	31
PID 752 wrote to memory of 2300	752	2025-02-05_0b402788ae36bf573d6e69354c37f310_mafia.exe	31
PID 752 wrote to memory of 1228	752	2025-02-05_0b402788ae36bf573d6e69354c37f310_mafia.exe	33
PID 752 wrote to memory of 1228	752	2025-02-05_0b402788ae36bf573d6e69354c37f310_mafia.exe	33
PID 752 wrote to memory of 1228	752	2025-02-05_0b402788ae36bf573d6e69354c37f310_mafia.exe	33
PID 752 wrote to memory of 1228	752	2025-02-05_0b402788ae36bf573d6e69354c37f310_mafia.exe	33
PID 752 wrote to memory of 1796	752	2025-02-05_0b402788ae36bf573d6e69354c37f310_mafia.exe	35
PID 752 wrote to memory of 1796	752	2025-02-05_0b402788ae36bf573d6e69354c37f310_mafia.exe	35
PID 752 wrote to memory of 1796	752	2025-02-05_0b402788ae36bf573d6e69354c37f310_mafia.exe	35
PID 752 wrote to memory of 1796	752	2025-02-05_0b402788ae36bf573d6e69354c37f310_mafia.exe	35
PID 752 wrote to memory of 2788	752	2025-02-05_0b402788ae36bf573d6e69354c37f310_mafia.exe	37
PID 752 wrote to memory of 2788	752	2025-02-05_0b402788ae36bf573d6e69354c37f310_mafia.exe	37
PID 752 wrote to memory of 2788	752	2025-02-05_0b402788ae36bf573d6e69354c37f310_mafia.exe	37
PID 752 wrote to memory of 2788	752	2025-02-05_0b402788ae36bf573d6e69354c37f310_mafia.exe	37
PID 752 wrote to memory of 2852	752	2025-02-05_0b402788ae36bf573d6e69354c37f310_mafia.exe	39
PID 752 wrote to memory of 2852	752	2025-02-05_0b402788ae36bf573d6e69354c37f310_mafia.exe	39
PID 752 wrote to memory of 2852	752	2025-02-05_0b402788ae36bf573d6e69354c37f310_mafia.exe	39
PID 752 wrote to memory of 2852	752	2025-02-05_0b402788ae36bf573d6e69354c37f310_mafia.exe	39
PID 752 wrote to memory of 948	752	2025-02-05_0b402788ae36bf573d6e69354c37f310_mafia.exe	42
PID 752 wrote to memory of 948	752	2025-02-05_0b402788ae36bf573d6e69354c37f310_mafia.exe	42
PID 752 wrote to memory of 948	752	2025-02-05_0b402788ae36bf573d6e69354c37f310_mafia.exe	42
PID 752 wrote to memory of 948	752	2025-02-05_0b402788ae36bf573d6e69354c37f310_mafia.exe	42
PID 2836 wrote to memory of 2744	2836	fzzqbkbd.exe	44
PID 2836 wrote to memory of 2744	2836	fzzqbkbd.exe	44
PID 2836 wrote to memory of 2744	2836	fzzqbkbd.exe	44
PID 2836 wrote to memory of 2744	2836	fzzqbkbd.exe	44
PID 2836 wrote to memory of 2744	2836	fzzqbkbd.exe	44
PID 2836 wrote to memory of 2744	2836	fzzqbkbd.exe	44

C:\Users\Admin\AppData\Local\Temp\2025-02-05_0b402788ae36bf573d6e69354c37f310_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-05_0b402788ae36bf573d6e69354c37f310_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:752
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wgezuixk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2300
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\fzzqbkbd.exe" C:\Windows\SysWOW64\wgezuixk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1228
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create wgezuixk binPath= "C:\Windows\SysWOW64\wgezuixk\fzzqbkbd.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-05_0b402788ae36bf573d6e69354c37f310_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1796
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description wgezuixk "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2788
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start wgezuixk
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2852
- 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:948

C:\Windows\SysWOW64\wgezuixk\fzzqbkbd.exe
C:\Windows\SysWOW64\wgezuixk\fzzqbkbd.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-05_0b402788ae36bf573d6e69354c37f310_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2836
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2744

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

T1569

Service Execution

T1569.002

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\fzzqbkbd.exe

Filesize
12.2MB

MD5
91e7565cdfa57730811aa7960908a2b9

SHA1
0eda88551b0c94f81dc7a40dc16dc86848635079

SHA256
1285582e06aa53916b15e184532754d2b01a28b4c082191aa76ceddf2b9de13a

SHA512
74a8f7f3d876dd076f3076cfc008bf50b5bceef7c85a1f48cf42bcdc00304281e2b0e185252ee56462067236dd968b6d0b9a2915c482757d577a5cc878c771b3

Download Submit
memory/752-7-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/752-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/752-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/752-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/752-8-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/752-1-0x00000000005B0000-0x00000000006B0000-memory.dmp

Filesize
1024KB

Download
memory/2744-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2744-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2744-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2744-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2744-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2836-17-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads