tofsee | a5e7d70a29f30a9d82c922a5e49eff12db1d47772fceb8012988b4d6001a7b02

Analysis

max time kernel
144s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
06-02-2025 00:02

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General

Target

2025-02-05_894a9eefc5b05d243238afed2b573167_mafia.exe
Size

13.1MB
MD5

894a9eefc5b05d243238afed2b573167
SHA1

7dc5bd6b457cac8c2b5b6ff3edc1ba5eb3d97a82
SHA256

a5e7d70a29f30a9d82c922a5e49eff12db1d47772fceb8012988b4d6001a7b02
SHA512

00fd31f17cef02f5f45156398e1a074230aa0e0383cddca5b2ca6daab68716da29db90d5d26f5f236dd0c795dd5d8870e903cc8ac833890efa8943a0a71d5818
SSDEEP

24576:aEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZn:zfotN

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\pfkisyao = "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
2760	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\pfkisyao\ImagePath = "C:\\Windows\\SysWOW64\\pfkisyao\\zzalghfn.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2732	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2912	zzalghfn.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2912 set thread context of 2732	2912	zzalghfn.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2692	sc.exe
2708	sc.exe
2872	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\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	2025-02-05_894a9eefc5b05d243238afed2b573167_mafia.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	zzalghfn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2536 wrote to memory of 2408	2536	2025-02-05_894a9eefc5b05d243238afed2b573167_mafia.exe	30
PID 2536 wrote to memory of 2408	2536	2025-02-05_894a9eefc5b05d243238afed2b573167_mafia.exe	30
PID 2536 wrote to memory of 2408	2536	2025-02-05_894a9eefc5b05d243238afed2b573167_mafia.exe	30
PID 2536 wrote to memory of 2408	2536	2025-02-05_894a9eefc5b05d243238afed2b573167_mafia.exe	30
PID 2536 wrote to memory of 1824	2536	2025-02-05_894a9eefc5b05d243238afed2b573167_mafia.exe	32
PID 2536 wrote to memory of 1824	2536	2025-02-05_894a9eefc5b05d243238afed2b573167_mafia.exe	32
PID 2536 wrote to memory of 1824	2536	2025-02-05_894a9eefc5b05d243238afed2b573167_mafia.exe	32
PID 2536 wrote to memory of 1824	2536	2025-02-05_894a9eefc5b05d243238afed2b573167_mafia.exe	32
PID 2536 wrote to memory of 2692	2536	2025-02-05_894a9eefc5b05d243238afed2b573167_mafia.exe	34
PID 2536 wrote to memory of 2692	2536	2025-02-05_894a9eefc5b05d243238afed2b573167_mafia.exe	34
PID 2536 wrote to memory of 2692	2536	2025-02-05_894a9eefc5b05d243238afed2b573167_mafia.exe	34
PID 2536 wrote to memory of 2692	2536	2025-02-05_894a9eefc5b05d243238afed2b573167_mafia.exe	34
PID 2536 wrote to memory of 2708	2536	2025-02-05_894a9eefc5b05d243238afed2b573167_mafia.exe	36
PID 2536 wrote to memory of 2708	2536	2025-02-05_894a9eefc5b05d243238afed2b573167_mafia.exe	36
PID 2536 wrote to memory of 2708	2536	2025-02-05_894a9eefc5b05d243238afed2b573167_mafia.exe	36
PID 2536 wrote to memory of 2708	2536	2025-02-05_894a9eefc5b05d243238afed2b573167_mafia.exe	36
PID 2536 wrote to memory of 2872	2536	2025-02-05_894a9eefc5b05d243238afed2b573167_mafia.exe	38
PID 2536 wrote to memory of 2872	2536	2025-02-05_894a9eefc5b05d243238afed2b573167_mafia.exe	38
PID 2536 wrote to memory of 2872	2536	2025-02-05_894a9eefc5b05d243238afed2b573167_mafia.exe	38
PID 2536 wrote to memory of 2872	2536	2025-02-05_894a9eefc5b05d243238afed2b573167_mafia.exe	38
PID 2912 wrote to memory of 2732	2912	zzalghfn.exe	41
PID 2912 wrote to memory of 2732	2912	zzalghfn.exe	41
PID 2912 wrote to memory of 2732	2912	zzalghfn.exe	41
PID 2912 wrote to memory of 2732	2912	zzalghfn.exe	41
PID 2912 wrote to memory of 2732	2912	zzalghfn.exe	41
PID 2912 wrote to memory of 2732	2912	zzalghfn.exe	41
PID 2536 wrote to memory of 2760	2536	2025-02-05_894a9eefc5b05d243238afed2b573167_mafia.exe	42
PID 2536 wrote to memory of 2760	2536	2025-02-05_894a9eefc5b05d243238afed2b573167_mafia.exe	42
PID 2536 wrote to memory of 2760	2536	2025-02-05_894a9eefc5b05d243238afed2b573167_mafia.exe	42
PID 2536 wrote to memory of 2760	2536	2025-02-05_894a9eefc5b05d243238afed2b573167_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-02-05_894a9eefc5b05d243238afed2b573167_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-05_894a9eefc5b05d243238afed2b573167_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2536
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\pfkisyao\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2408
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\zzalghfn.exe" C:\Windows\SysWOW64\pfkisyao\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1824
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create pfkisyao binPath= "C:\Windows\SysWOW64\pfkisyao\zzalghfn.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-05_894a9eefc5b05d243238afed2b573167_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2692
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description pfkisyao "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2708
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start pfkisyao
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2872
- 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:2760

C:\Windows\SysWOW64\pfkisyao\zzalghfn.exe
C:\Windows\SysWOW64\pfkisyao\zzalghfn.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-05_894a9eefc5b05d243238afed2b573167_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:2732

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\zzalghfn.exe

Filesize
10.0MB

MD5
3b38b1255f4f8f7f894edf96ce0b63cf

SHA1
f58ad45c5ec4e1bf4f4df4215f23d2a35da9a771

SHA256
c3b55025f94c97105fc1b856bee38ee1cc3b99fe4b81b2fb1cbb5b4e52c71db9

SHA512
76564763196c654800b2d756e9188b45185fc07612687811f8e89ca9a7ae3bc2d0d2639963ca5f20380fd0175447952297f08b2d1924d2d1410877adaad5015c

Download Submit
memory/2536-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2536-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2536-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2536-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2536-1-0x0000000000540000-0x0000000000640000-memory.dmp

Filesize
1024KB

Download
memory/2536-14-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2732-11-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/2732-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2732-8-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/2732-17-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/2732-18-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/2912-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads