tofsee | b40f3f7f3e90e05e89b216f066aad486c83e27891c4bbacf77e9f134561e2bcc

Analysis

max time kernel
140s
max time network
123s
platform
windows7_x64
resource
win7-20250207-en
resource tags

arch:x64arch:x86image:win7-20250207-enlocale:en-usos:windows7-x64system
submitted
13/02/2025, 20:12

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General

Target

2025-02-13_2caa5dc4354f6e8da910c0914921bb6e_mafia.exe
Size

12.5MB
MD5

2caa5dc4354f6e8da910c0914921bb6e
SHA1

8b2c8f2a0ddd71d875b51482563f1ccf5478acec
SHA256

b40f3f7f3e90e05e89b216f066aad486c83e27891c4bbacf77e9f134561e2bcc
SHA512

2f89ca08502440798fa6098e158997845269c3f632fc6948271ce5ec876b4036e5e79137757473f378384d26c8df34967b0a3f78378b5bce6cacdc7f75b410e7
SSDEEP

393216:+XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXs:f

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\gdfbdvay = "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
2640	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\gdfbdvay\ImagePath = "C:\\Windows\\SysWOW64\\gdfbdvay\\qqrcxywe.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2892	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3016	qqrcxywe.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3016 set thread context of 2892	3016	qqrcxywe.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2284	sc.exe
2480	sc.exe
2460	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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-13_2caa5dc4354f6e8da910c0914921bb6e_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	qqrcxywe.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 860 wrote to memory of 2352	860	2025-02-13_2caa5dc4354f6e8da910c0914921bb6e_mafia.exe	30
PID 860 wrote to memory of 2352	860	2025-02-13_2caa5dc4354f6e8da910c0914921bb6e_mafia.exe	30
PID 860 wrote to memory of 2352	860	2025-02-13_2caa5dc4354f6e8da910c0914921bb6e_mafia.exe	30
PID 860 wrote to memory of 2352	860	2025-02-13_2caa5dc4354f6e8da910c0914921bb6e_mafia.exe	30
PID 860 wrote to memory of 1880	860	2025-02-13_2caa5dc4354f6e8da910c0914921bb6e_mafia.exe	32
PID 860 wrote to memory of 1880	860	2025-02-13_2caa5dc4354f6e8da910c0914921bb6e_mafia.exe	32
PID 860 wrote to memory of 1880	860	2025-02-13_2caa5dc4354f6e8da910c0914921bb6e_mafia.exe	32
PID 860 wrote to memory of 1880	860	2025-02-13_2caa5dc4354f6e8da910c0914921bb6e_mafia.exe	32
PID 860 wrote to memory of 2460	860	2025-02-13_2caa5dc4354f6e8da910c0914921bb6e_mafia.exe	34
PID 860 wrote to memory of 2460	860	2025-02-13_2caa5dc4354f6e8da910c0914921bb6e_mafia.exe	34
PID 860 wrote to memory of 2460	860	2025-02-13_2caa5dc4354f6e8da910c0914921bb6e_mafia.exe	34
PID 860 wrote to memory of 2460	860	2025-02-13_2caa5dc4354f6e8da910c0914921bb6e_mafia.exe	34
PID 860 wrote to memory of 2284	860	2025-02-13_2caa5dc4354f6e8da910c0914921bb6e_mafia.exe	36
PID 860 wrote to memory of 2284	860	2025-02-13_2caa5dc4354f6e8da910c0914921bb6e_mafia.exe	36
PID 860 wrote to memory of 2284	860	2025-02-13_2caa5dc4354f6e8da910c0914921bb6e_mafia.exe	36
PID 860 wrote to memory of 2284	860	2025-02-13_2caa5dc4354f6e8da910c0914921bb6e_mafia.exe	36
PID 860 wrote to memory of 2480	860	2025-02-13_2caa5dc4354f6e8da910c0914921bb6e_mafia.exe	38
PID 860 wrote to memory of 2480	860	2025-02-13_2caa5dc4354f6e8da910c0914921bb6e_mafia.exe	38
PID 860 wrote to memory of 2480	860	2025-02-13_2caa5dc4354f6e8da910c0914921bb6e_mafia.exe	38
PID 860 wrote to memory of 2480	860	2025-02-13_2caa5dc4354f6e8da910c0914921bb6e_mafia.exe	38
PID 3016 wrote to memory of 2892	3016	qqrcxywe.exe	41
PID 3016 wrote to memory of 2892	3016	qqrcxywe.exe	41
PID 3016 wrote to memory of 2892	3016	qqrcxywe.exe	41
PID 3016 wrote to memory of 2892	3016	qqrcxywe.exe	41
PID 3016 wrote to memory of 2892	3016	qqrcxywe.exe	41
PID 3016 wrote to memory of 2892	3016	qqrcxywe.exe	41
PID 860 wrote to memory of 2640	860	2025-02-13_2caa5dc4354f6e8da910c0914921bb6e_mafia.exe	42
PID 860 wrote to memory of 2640	860	2025-02-13_2caa5dc4354f6e8da910c0914921bb6e_mafia.exe	42
PID 860 wrote to memory of 2640	860	2025-02-13_2caa5dc4354f6e8da910c0914921bb6e_mafia.exe	42
PID 860 wrote to memory of 2640	860	2025-02-13_2caa5dc4354f6e8da910c0914921bb6e_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-02-13_2caa5dc4354f6e8da910c0914921bb6e_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-13_2caa5dc4354f6e8da910c0914921bb6e_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:860
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\gdfbdvay\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2352
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qqrcxywe.exe" C:\Windows\SysWOW64\gdfbdvay\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1880
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create gdfbdvay binPath= "C:\Windows\SysWOW64\gdfbdvay\qqrcxywe.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-13_2caa5dc4354f6e8da910c0914921bb6e_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2460
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description gdfbdvay "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2284
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start gdfbdvay
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2480
- 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:2640

C:\Windows\SysWOW64\gdfbdvay\qqrcxywe.exe
C:\Windows\SysWOW64\gdfbdvay\qqrcxywe.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-13_2caa5dc4354f6e8da910c0914921bb6e_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3016
- 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:2892

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\qqrcxywe.exe

Filesize
14.6MB

MD5
61da8bca6255a0de2303ad628c60e9d9

SHA1
7e5a53b49fac7ec75f059de4781d5e7357e28f4e

SHA256
3fc95d1ea5df064a922e2a1ede27b45fb489431cbfff92a0cf94e53553ec809b

SHA512
893839ce3873dce2468115bfc0fd72bcdb5cb978c4e9471d1a12c0e900b3af1cc3dfccba85b5e5783c00083c1e53fe7ee3eeea86ad2be67eade36ba171f93832

Download Submit
memory/860-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/860-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/860-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/860-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/860-1-0x0000000000550000-0x0000000000650000-memory.dmp

Filesize
1024KB

Download
memory/860-14-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2892-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2892-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2892-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2892-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2892-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3016-12-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads