tofsee | 4e8644f27d0d75b537e63dc51b670d765afaf46f486d3836158a9a0ca729dc1a

General

Target

2025-01-28_c043cfd652b04f6ca4c1bea4f0dc25e9_mafia.exe
Size

14.5MB
MD5

c043cfd652b04f6ca4c1bea4f0dc25e9
SHA1

5f87fa2a23521a318ca1c4f0a9d42f952f0adbde
SHA256

4e8644f27d0d75b537e63dc51b670d765afaf46f486d3836158a9a0ca729dc1a
SHA512

e36d378cb7637fb115af79c43519595fc25e4201fce8bfd90a7f143bf7eff0ff305bcb28b895f757ded459b48f42593c7ab83406d2a242d39edeb031425380f6
SSDEEP

3072:jLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:qOMdRQr7OB0ypmMXnl8XEPM3noSWOC

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
2920	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\lqvonbib\ImagePath = "C:\\Windows\\SysWOW64\\lqvonbib\\fzzqbkbd.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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	2025-01-28_c043cfd652b04f6ca4c1bea4f0dc25e9_mafia.exe

Deletes itself 1 IoCs

pid	Process
1172	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3204	fzzqbkbd.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3204 set thread context of 1172	3204	fzzqbkbd.exe	106

Launches sc.exe 3 IoCs

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

pid	Process
3972	sc.exe
2440	sc.exe
1884	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
4032	2696	WerFault.exe	81
2572	3204	WerFault.exe	94

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	2025-01-28_c043cfd652b04f6ca4c1bea4f0dc25e9_mafia.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2696 wrote to memory of 1828	2696	2025-01-28_c043cfd652b04f6ca4c1bea4f0dc25e9_mafia.exe	82
PID 2696 wrote to memory of 1828	2696	2025-01-28_c043cfd652b04f6ca4c1bea4f0dc25e9_mafia.exe	82
PID 2696 wrote to memory of 1828	2696	2025-01-28_c043cfd652b04f6ca4c1bea4f0dc25e9_mafia.exe	82
PID 2696 wrote to memory of 4460	2696	2025-01-28_c043cfd652b04f6ca4c1bea4f0dc25e9_mafia.exe	86
PID 2696 wrote to memory of 4460	2696	2025-01-28_c043cfd652b04f6ca4c1bea4f0dc25e9_mafia.exe	86
PID 2696 wrote to memory of 4460	2696	2025-01-28_c043cfd652b04f6ca4c1bea4f0dc25e9_mafia.exe	86
PID 2696 wrote to memory of 3972	2696	2025-01-28_c043cfd652b04f6ca4c1bea4f0dc25e9_mafia.exe	88
PID 2696 wrote to memory of 3972	2696	2025-01-28_c043cfd652b04f6ca4c1bea4f0dc25e9_mafia.exe	88
PID 2696 wrote to memory of 3972	2696	2025-01-28_c043cfd652b04f6ca4c1bea4f0dc25e9_mafia.exe	88
PID 2696 wrote to memory of 2440	2696	2025-01-28_c043cfd652b04f6ca4c1bea4f0dc25e9_mafia.exe	90
PID 2696 wrote to memory of 2440	2696	2025-01-28_c043cfd652b04f6ca4c1bea4f0dc25e9_mafia.exe	90
PID 2696 wrote to memory of 2440	2696	2025-01-28_c043cfd652b04f6ca4c1bea4f0dc25e9_mafia.exe	90
PID 2696 wrote to memory of 1884	2696	2025-01-28_c043cfd652b04f6ca4c1bea4f0dc25e9_mafia.exe	92
PID 2696 wrote to memory of 1884	2696	2025-01-28_c043cfd652b04f6ca4c1bea4f0dc25e9_mafia.exe	92
PID 2696 wrote to memory of 1884	2696	2025-01-28_c043cfd652b04f6ca4c1bea4f0dc25e9_mafia.exe	92
PID 2696 wrote to memory of 2920	2696	2025-01-28_c043cfd652b04f6ca4c1bea4f0dc25e9_mafia.exe	95
PID 2696 wrote to memory of 2920	2696	2025-01-28_c043cfd652b04f6ca4c1bea4f0dc25e9_mafia.exe	95
PID 2696 wrote to memory of 2920	2696	2025-01-28_c043cfd652b04f6ca4c1bea4f0dc25e9_mafia.exe	95
PID 3204 wrote to memory of 1172	3204	fzzqbkbd.exe	106
PID 3204 wrote to memory of 1172	3204	fzzqbkbd.exe	106
PID 3204 wrote to memory of 1172	3204	fzzqbkbd.exe	106
PID 3204 wrote to memory of 1172	3204	fzzqbkbd.exe	106
PID 3204 wrote to memory of 1172	3204	fzzqbkbd.exe	106

C:\Users\Admin\AppData\Local\Temp\2025-01-28_c043cfd652b04f6ca4c1bea4f0dc25e9_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-28_c043cfd652b04f6ca4c1bea4f0dc25e9_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2696
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\lqvonbib\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1828
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\fzzqbkbd.exe" C:\Windows\SysWOW64\lqvonbib\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4460
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create lqvonbib binPath= "C:\Windows\SysWOW64\lqvonbib\fzzqbkbd.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-28_c043cfd652b04f6ca4c1bea4f0dc25e9_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3972
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description lqvonbib "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2440
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start lqvonbib
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1884
- 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:2920
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2696 -s 792
  2⤵
  - Program crash
  PID:4032

C:\Windows\SysWOW64\lqvonbib\fzzqbkbd.exe
C:\Windows\SysWOW64\lqvonbib\fzzqbkbd.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-28_c043cfd652b04f6ca4c1bea4f0dc25e9_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3204
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1172
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3204 -s 552
  2⤵
  - Program crash
  PID:2572

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 2696 -ip 2696
1⤵
PID:4672

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 3204 -ip 3204
1⤵
PID:4060

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\fzzqbkbd.exe

Filesize
10.7MB

MD5
ede0c377951c2147c1754b3d164e1589

SHA1
2cdaa5d37b952b90a43e890dd5159342e1fac819

SHA256
a46ee6539a28820654579eea5a8260fe64fb5b388317577982da2f079db492f3

SHA512
46d1ecd34887cbd731e9e7db7b0aa31ecaad262466b36d2e00ab95203627b65e5969e48cf10921b4d00fbf9ffa04abbe1ad78e872d77bc177819fc9b7d48acbc

Download Submit
memory/1172-17-0x0000000000980000-0x0000000000995000-memory.dmp

Filesize
84KB

Download
memory/1172-14-0x0000000000980000-0x0000000000995000-memory.dmp

Filesize
84KB

Download
memory/1172-16-0x0000000000980000-0x0000000000995000-memory.dmp

Filesize
84KB

Download
memory/2696-1-0x0000000000460000-0x0000000000560000-memory.dmp

Filesize
1024KB

Download
memory/2696-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2696-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2696-8-0x0000000000880000-0x0000000000893000-memory.dmp

Filesize
76KB

Download
memory/2696-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2696-2-0x0000000000880000-0x0000000000893000-memory.dmp

Filesize
76KB

Download
memory/3204-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3204-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3204-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3204-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads