tofsee | 8b388cef1f5d7328a983be59267458af674d5866dcedc063df48efaa4cbc0de3

Analysis

max time kernel
145s
max time network
116s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
13-01-2025 19:09

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General

Target

2025-01-13_42576b16f53d00b33acc43a6ee7c1185_mafia.exe
Size

13.2MB
MD5

42576b16f53d00b33acc43a6ee7c1185
SHA1

a2b133ad50ccfc4d5cc1869a2dd28cb7b6ac812a
SHA256

8b388cef1f5d7328a983be59267458af674d5866dcedc063df48efaa4cbc0de3
SHA512

b8ac774c73bb3c7bdf51a0eecda91dfabb5f4a9a31e7a2aab0a4040f6ee827bdeaa670fdb94a732bef56f8caf8bf33b48d8529c7254fc03dd115b5c012e08327
SSDEEP

49152:8qE0YKr3fYPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP:8qtYc3

Score

10^/10

tofsee discovery evasion 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

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\fptrbqae = "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

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2932	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\fptrbqae\ImagePath = "C:\\Windows\\SysWOW64\\fptrbqae\\gtfcvinx.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
852	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2648	gtfcvinx.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2648 set thread context of 852	2648	gtfcvinx.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2780	sc.exe
2900	sc.exe
2444	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	2025-01-13_42576b16f53d00b33acc43a6ee7c1185_mafia.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	gtfcvinx.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	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2380 wrote to memory of 2304	2380	2025-01-13_42576b16f53d00b33acc43a6ee7c1185_mafia.exe	29
PID 2380 wrote to memory of 2304	2380	2025-01-13_42576b16f53d00b33acc43a6ee7c1185_mafia.exe	29
PID 2380 wrote to memory of 2304	2380	2025-01-13_42576b16f53d00b33acc43a6ee7c1185_mafia.exe	29
PID 2380 wrote to memory of 2304	2380	2025-01-13_42576b16f53d00b33acc43a6ee7c1185_mafia.exe	29
PID 2380 wrote to memory of 2332	2380	2025-01-13_42576b16f53d00b33acc43a6ee7c1185_mafia.exe	31
PID 2380 wrote to memory of 2332	2380	2025-01-13_42576b16f53d00b33acc43a6ee7c1185_mafia.exe	31
PID 2380 wrote to memory of 2332	2380	2025-01-13_42576b16f53d00b33acc43a6ee7c1185_mafia.exe	31
PID 2380 wrote to memory of 2332	2380	2025-01-13_42576b16f53d00b33acc43a6ee7c1185_mafia.exe	31
PID 2380 wrote to memory of 2780	2380	2025-01-13_42576b16f53d00b33acc43a6ee7c1185_mafia.exe	33
PID 2380 wrote to memory of 2780	2380	2025-01-13_42576b16f53d00b33acc43a6ee7c1185_mafia.exe	33
PID 2380 wrote to memory of 2780	2380	2025-01-13_42576b16f53d00b33acc43a6ee7c1185_mafia.exe	33
PID 2380 wrote to memory of 2780	2380	2025-01-13_42576b16f53d00b33acc43a6ee7c1185_mafia.exe	33
PID 2380 wrote to memory of 2900	2380	2025-01-13_42576b16f53d00b33acc43a6ee7c1185_mafia.exe	35
PID 2380 wrote to memory of 2900	2380	2025-01-13_42576b16f53d00b33acc43a6ee7c1185_mafia.exe	35
PID 2380 wrote to memory of 2900	2380	2025-01-13_42576b16f53d00b33acc43a6ee7c1185_mafia.exe	35
PID 2380 wrote to memory of 2900	2380	2025-01-13_42576b16f53d00b33acc43a6ee7c1185_mafia.exe	35
PID 2380 wrote to memory of 2444	2380	2025-01-13_42576b16f53d00b33acc43a6ee7c1185_mafia.exe	37
PID 2380 wrote to memory of 2444	2380	2025-01-13_42576b16f53d00b33acc43a6ee7c1185_mafia.exe	37
PID 2380 wrote to memory of 2444	2380	2025-01-13_42576b16f53d00b33acc43a6ee7c1185_mafia.exe	37
PID 2380 wrote to memory of 2444	2380	2025-01-13_42576b16f53d00b33acc43a6ee7c1185_mafia.exe	37
PID 2380 wrote to memory of 2932	2380	2025-01-13_42576b16f53d00b33acc43a6ee7c1185_mafia.exe	40
PID 2380 wrote to memory of 2932	2380	2025-01-13_42576b16f53d00b33acc43a6ee7c1185_mafia.exe	40
PID 2380 wrote to memory of 2932	2380	2025-01-13_42576b16f53d00b33acc43a6ee7c1185_mafia.exe	40
PID 2380 wrote to memory of 2932	2380	2025-01-13_42576b16f53d00b33acc43a6ee7c1185_mafia.exe	40
PID 2648 wrote to memory of 852	2648	gtfcvinx.exe	42
PID 2648 wrote to memory of 852	2648	gtfcvinx.exe	42
PID 2648 wrote to memory of 852	2648	gtfcvinx.exe	42
PID 2648 wrote to memory of 852	2648	gtfcvinx.exe	42
PID 2648 wrote to memory of 852	2648	gtfcvinx.exe	42
PID 2648 wrote to memory of 852	2648	gtfcvinx.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-01-13_42576b16f53d00b33acc43a6ee7c1185_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-13_42576b16f53d00b33acc43a6ee7c1185_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2380
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\fptrbqae\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2304
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\gtfcvinx.exe" C:\Windows\SysWOW64\fptrbqae\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2332
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create fptrbqae binPath= "C:\Windows\SysWOW64\fptrbqae\gtfcvinx.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-13_42576b16f53d00b33acc43a6ee7c1185_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2780
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description fptrbqae "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2900
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start fptrbqae
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2444
- 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:2932

C:\Windows\SysWOW64\fptrbqae\gtfcvinx.exe
C:\Windows\SysWOW64\fptrbqae\gtfcvinx.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-13_42576b16f53d00b33acc43a6ee7c1185_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2648
- 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:852

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\gtfcvinx.exe

Filesize
12.2MB

MD5
a712e23df2ef9f64b34ff288eeb0e651

SHA1
e680d7bf54182c5c9d9c252472dc1edfccae9028

SHA256
d1faf8f4db3f9227249286241d67ff442c49964b07bc156533e7374259b1a42b

SHA512
29975f1c9326ee66fc23761d26bf300095b3519c32d3711e32f406551a23fe8a69f1a64a0714964bd29c4dfec1ff1ac6a20f8298e5e1a2646169b3413c80682a

Download Submit
memory/852-16-0x0000000000120000-0x0000000000135000-memory.dmp

Filesize
84KB

Download
memory/852-14-0x0000000000120000-0x0000000000135000-memory.dmp

Filesize
84KB

Download
memory/852-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/852-11-0x0000000000120000-0x0000000000135000-memory.dmp

Filesize
84KB

Download
memory/852-18-0x0000000000120000-0x0000000000135000-memory.dmp

Filesize
84KB

Download
memory/2380-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2380-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2380-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2380-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2380-1-0x0000000002F70000-0x0000000003070000-memory.dmp

Filesize
1024KB

Download
memory/2380-7-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/2648-17-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads