tofsee | b57c516bc6526bc3b718001da64b5bca02fa7db74cffd8b32ebdb4acadf82938

Analysis

max time kernel
145s
max time network
129s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
28/01/2025, 10:42

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General

Target

2025-01-28_5a4d47d675308426af33bf8cbd4b2e2f_mafia.exe
Size

14.1MB
MD5

5a4d47d675308426af33bf8cbd4b2e2f
SHA1

4f0bf49757f0a0d2416e03ec3fdab61c06980a17
SHA256

b57c516bc6526bc3b718001da64b5bca02fa7db74cffd8b32ebdb4acadf82938
SHA512

91d73bf1b565132e6e30055b031b11148305008aad841508381939555af399ada348e9cbc63794403d0265679cee7e4fc621e90b328a0afe5a202fe7e50bc993
SSDEEP

24576:rEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZo:4fotW

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\whkiskjq = "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
2584	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\whkiskjq\ImagePath = "C:\\Windows\\SysWOW64\\whkiskjq\\fzzqbkbd.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2772	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2912	fzzqbkbd.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2912 set thread context of 2772	2912	fzzqbkbd.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2212	sc.exe
2744	sc.exe
2660	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	fzzqbkbd.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-28_5a4d47d675308426af33bf8cbd4b2e2f_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1996 wrote to memory of 2004	1996	2025-01-28_5a4d47d675308426af33bf8cbd4b2e2f_mafia.exe	31
PID 1996 wrote to memory of 2004	1996	2025-01-28_5a4d47d675308426af33bf8cbd4b2e2f_mafia.exe	31
PID 1996 wrote to memory of 2004	1996	2025-01-28_5a4d47d675308426af33bf8cbd4b2e2f_mafia.exe	31
PID 1996 wrote to memory of 2004	1996	2025-01-28_5a4d47d675308426af33bf8cbd4b2e2f_mafia.exe	31
PID 1996 wrote to memory of 2136	1996	2025-01-28_5a4d47d675308426af33bf8cbd4b2e2f_mafia.exe	33
PID 1996 wrote to memory of 2136	1996	2025-01-28_5a4d47d675308426af33bf8cbd4b2e2f_mafia.exe	33
PID 1996 wrote to memory of 2136	1996	2025-01-28_5a4d47d675308426af33bf8cbd4b2e2f_mafia.exe	33
PID 1996 wrote to memory of 2136	1996	2025-01-28_5a4d47d675308426af33bf8cbd4b2e2f_mafia.exe	33
PID 1996 wrote to memory of 2212	1996	2025-01-28_5a4d47d675308426af33bf8cbd4b2e2f_mafia.exe	35
PID 1996 wrote to memory of 2212	1996	2025-01-28_5a4d47d675308426af33bf8cbd4b2e2f_mafia.exe	35
PID 1996 wrote to memory of 2212	1996	2025-01-28_5a4d47d675308426af33bf8cbd4b2e2f_mafia.exe	35
PID 1996 wrote to memory of 2212	1996	2025-01-28_5a4d47d675308426af33bf8cbd4b2e2f_mafia.exe	35
PID 1996 wrote to memory of 2744	1996	2025-01-28_5a4d47d675308426af33bf8cbd4b2e2f_mafia.exe	37
PID 1996 wrote to memory of 2744	1996	2025-01-28_5a4d47d675308426af33bf8cbd4b2e2f_mafia.exe	37
PID 1996 wrote to memory of 2744	1996	2025-01-28_5a4d47d675308426af33bf8cbd4b2e2f_mafia.exe	37
PID 1996 wrote to memory of 2744	1996	2025-01-28_5a4d47d675308426af33bf8cbd4b2e2f_mafia.exe	37
PID 1996 wrote to memory of 2660	1996	2025-01-28_5a4d47d675308426af33bf8cbd4b2e2f_mafia.exe	39
PID 1996 wrote to memory of 2660	1996	2025-01-28_5a4d47d675308426af33bf8cbd4b2e2f_mafia.exe	39
PID 1996 wrote to memory of 2660	1996	2025-01-28_5a4d47d675308426af33bf8cbd4b2e2f_mafia.exe	39
PID 1996 wrote to memory of 2660	1996	2025-01-28_5a4d47d675308426af33bf8cbd4b2e2f_mafia.exe	39
PID 2912 wrote to memory of 2772	2912	fzzqbkbd.exe	42
PID 2912 wrote to memory of 2772	2912	fzzqbkbd.exe	42
PID 2912 wrote to memory of 2772	2912	fzzqbkbd.exe	42
PID 2912 wrote to memory of 2772	2912	fzzqbkbd.exe	42
PID 2912 wrote to memory of 2772	2912	fzzqbkbd.exe	42
PID 2912 wrote to memory of 2772	2912	fzzqbkbd.exe	42
PID 1996 wrote to memory of 2584	1996	2025-01-28_5a4d47d675308426af33bf8cbd4b2e2f_mafia.exe	43
PID 1996 wrote to memory of 2584	1996	2025-01-28_5a4d47d675308426af33bf8cbd4b2e2f_mafia.exe	43
PID 1996 wrote to memory of 2584	1996	2025-01-28_5a4d47d675308426af33bf8cbd4b2e2f_mafia.exe	43
PID 1996 wrote to memory of 2584	1996	2025-01-28_5a4d47d675308426af33bf8cbd4b2e2f_mafia.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-01-28_5a4d47d675308426af33bf8cbd4b2e2f_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-28_5a4d47d675308426af33bf8cbd4b2e2f_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1996
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\whkiskjq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2004
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\fzzqbkbd.exe" C:\Windows\SysWOW64\whkiskjq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2136
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create whkiskjq binPath= "C:\Windows\SysWOW64\whkiskjq\fzzqbkbd.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-28_5a4d47d675308426af33bf8cbd4b2e2f_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2212
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description whkiskjq "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2744
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start whkiskjq
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2660
- 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:2584

C:\Windows\SysWOW64\whkiskjq\fzzqbkbd.exe
C:\Windows\SysWOW64\whkiskjq\fzzqbkbd.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-28_5a4d47d675308426af33bf8cbd4b2e2f_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2912
- 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:2772

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
10.1MB

MD5
a01ec898e44a37ff7ce6d1496f9ceb21

SHA1
88c44a8ff606190b09188ad62a7bbaf0c54a6baf

SHA256
a8b76fc591d8f4fcbae19d8c61fecc8605fc2781f62368ad9fb68e0c6c832e15

SHA512
5dd7ab07089d298675ce0b403e7a549c2deff9cc323d9c546eee2c942fbb3ac5111e424fb591ae190219be9492a71f84dd7e26f0c8d922e5207ad9a69c77e763

Download Submit
memory/1996-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1996-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1996-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/1996-15-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/1996-1-0x0000000000550000-0x0000000000650000-memory.dmp

Filesize
1024KB

Download
memory/1996-14-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2772-11-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2772-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2772-8-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2772-17-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2772-18-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2912-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads