tofsee | f80152d12c33926f680f4e07bb29987471b83ae920bed66f3be5a831658ca711

Analysis

max time kernel
144s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
11-01-2025 17:57

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General

Target

2025-01-11_2d4066cc99d8ca925b825c0991dad4a8_mafia.exe
Size

13.7MB
MD5

2d4066cc99d8ca925b825c0991dad4a8
SHA1

646df71080b521a8738bc52143f68107e4ec1851
SHA256

f80152d12c33926f680f4e07bb29987471b83ae920bed66f3be5a831658ca711
SHA512

4bf737ce67f34e0864c746f36051ccac4c7ae76b6bfb8c1fb639755f6c2f277f6992c44fa7e4190fdb7d92b319e4e53a07ae9f88af215bf66bc66f913507ea34
SSDEEP

6144:oLQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQo:9TYe+D2jFu+iZoUFhAz

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\aalhjizn = "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
2544	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\aalhjizn\ImagePath = "C:\\Windows\\SysWOW64\\aalhjizn\\cezfylv.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
784	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2600	cezfylv.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2600 set thread context of 784	2600	cezfylv.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2172	sc.exe
2772	sc.exe
2748	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	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	cezfylv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-11_2d4066cc99d8ca925b825c0991dad4a8_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2100 wrote to memory of 2812	2100	2025-01-11_2d4066cc99d8ca925b825c0991dad4a8_mafia.exe	31
PID 2100 wrote to memory of 2812	2100	2025-01-11_2d4066cc99d8ca925b825c0991dad4a8_mafia.exe	31
PID 2100 wrote to memory of 2812	2100	2025-01-11_2d4066cc99d8ca925b825c0991dad4a8_mafia.exe	31
PID 2100 wrote to memory of 2812	2100	2025-01-11_2d4066cc99d8ca925b825c0991dad4a8_mafia.exe	31
PID 2100 wrote to memory of 2672	2100	2025-01-11_2d4066cc99d8ca925b825c0991dad4a8_mafia.exe	33
PID 2100 wrote to memory of 2672	2100	2025-01-11_2d4066cc99d8ca925b825c0991dad4a8_mafia.exe	33
PID 2100 wrote to memory of 2672	2100	2025-01-11_2d4066cc99d8ca925b825c0991dad4a8_mafia.exe	33
PID 2100 wrote to memory of 2672	2100	2025-01-11_2d4066cc99d8ca925b825c0991dad4a8_mafia.exe	33
PID 2100 wrote to memory of 2172	2100	2025-01-11_2d4066cc99d8ca925b825c0991dad4a8_mafia.exe	35
PID 2100 wrote to memory of 2172	2100	2025-01-11_2d4066cc99d8ca925b825c0991dad4a8_mafia.exe	35
PID 2100 wrote to memory of 2172	2100	2025-01-11_2d4066cc99d8ca925b825c0991dad4a8_mafia.exe	35
PID 2100 wrote to memory of 2172	2100	2025-01-11_2d4066cc99d8ca925b825c0991dad4a8_mafia.exe	35
PID 2100 wrote to memory of 2772	2100	2025-01-11_2d4066cc99d8ca925b825c0991dad4a8_mafia.exe	37
PID 2100 wrote to memory of 2772	2100	2025-01-11_2d4066cc99d8ca925b825c0991dad4a8_mafia.exe	37
PID 2100 wrote to memory of 2772	2100	2025-01-11_2d4066cc99d8ca925b825c0991dad4a8_mafia.exe	37
PID 2100 wrote to memory of 2772	2100	2025-01-11_2d4066cc99d8ca925b825c0991dad4a8_mafia.exe	37
PID 2100 wrote to memory of 2748	2100	2025-01-11_2d4066cc99d8ca925b825c0991dad4a8_mafia.exe	39
PID 2100 wrote to memory of 2748	2100	2025-01-11_2d4066cc99d8ca925b825c0991dad4a8_mafia.exe	39
PID 2100 wrote to memory of 2748	2100	2025-01-11_2d4066cc99d8ca925b825c0991dad4a8_mafia.exe	39
PID 2100 wrote to memory of 2748	2100	2025-01-11_2d4066cc99d8ca925b825c0991dad4a8_mafia.exe	39
PID 2100 wrote to memory of 2544	2100	2025-01-11_2d4066cc99d8ca925b825c0991dad4a8_mafia.exe	42
PID 2100 wrote to memory of 2544	2100	2025-01-11_2d4066cc99d8ca925b825c0991dad4a8_mafia.exe	42
PID 2100 wrote to memory of 2544	2100	2025-01-11_2d4066cc99d8ca925b825c0991dad4a8_mafia.exe	42
PID 2100 wrote to memory of 2544	2100	2025-01-11_2d4066cc99d8ca925b825c0991dad4a8_mafia.exe	42
PID 2600 wrote to memory of 784	2600	cezfylv.exe	43
PID 2600 wrote to memory of 784	2600	cezfylv.exe	43
PID 2600 wrote to memory of 784	2600	cezfylv.exe	43
PID 2600 wrote to memory of 784	2600	cezfylv.exe	43
PID 2600 wrote to memory of 784	2600	cezfylv.exe	43
PID 2600 wrote to memory of 784	2600	cezfylv.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-01-11_2d4066cc99d8ca925b825c0991dad4a8_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-11_2d4066cc99d8ca925b825c0991dad4a8_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2100
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\aalhjizn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2812
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\cezfylv.exe" C:\Windows\SysWOW64\aalhjizn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2672
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create aalhjizn binPath= "C:\Windows\SysWOW64\aalhjizn\cezfylv.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-11_2d4066cc99d8ca925b825c0991dad4a8_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2172
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description aalhjizn "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2772
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start aalhjizn
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2748
- 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:2544

C:\Windows\SysWOW64\aalhjizn\cezfylv.exe
C:\Windows\SysWOW64\aalhjizn\cezfylv.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-11_2d4066cc99d8ca925b825c0991dad4a8_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2600
- 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:784

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\cezfylv.exe

Filesize
14.7MB

MD5
a556ed7f815e6f4a2cd1d2648c75d764

SHA1
d9fbfad92155b623f2f727719dbaa01e9ccdc38f

SHA256
0323c0bc4c846c3e809eae6cf95f2ab04fc6bae72ae3334c2caa177b28c7be78

SHA512
b6f81544ab503a68b576750c13f64413587f39085d842821425e7e58a39b71a63118e4aa3ab25f81c13d9f66f1d92c162067aa443058362a4a34a101a1630f5e

Download Submit
memory/784-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/784-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/784-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/784-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/784-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2100-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2100-1-0x0000000000650000-0x0000000000750000-memory.dmp

Filesize
1024KB

Download
memory/2100-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2100-8-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2100-7-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2100-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2600-15-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads