tofsee | 22c8895bc9d3d7a67787d17179332adba9a59b6753d2feddf9752e725e967ae1

General

Target

2025-02-01_055e230a9f4a4326b302456ed21f443d_mafia.exe
Size

10.7MB
MD5

055e230a9f4a4326b302456ed21f443d
SHA1

d8c00df30523cf25b19fa25054539fc84412928f
SHA256

22c8895bc9d3d7a67787d17179332adba9a59b6753d2feddf9752e725e967ae1
SHA512

acbdcc8f84a86d15538396a3d61ead759ac233546f0528518b153186219e565779b281bc9c48c820c3dbf5276959780588a30101dc6abb02a12e5e25d7c8c0f8
SSDEEP

6144:DLQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQ1:4TYe+D2jFu+iZoUFhAz

Score

10^/10

tofsee defense_evasion discovery execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

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
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
1976	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\ksyurjky\ImagePath = "C:\\Windows\\SysWOW64\\ksyurjky\\zzalghfn.exe"	svchost.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-70482961-775596374-3727440602-1000\Control Panel\International\Geo\Nation	2025-02-01_055e230a9f4a4326b302456ed21f443d_mafia.exe

Deletes itself 1 IoCs

pid	Process
3680	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
5040	zzalghfn.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5040 set thread context of 3680	5040	zzalghfn.exe	100

Launches sc.exe 3 IoCs

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

pid	Process
556	sc.exe
2204	sc.exe
5088	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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3272	4788	WerFault.exe	82
1572	5040	WerFault.exe	96

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	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	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	2025-02-01_055e230a9f4a4326b302456ed21f443d_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4788 wrote to memory of 3128	4788	2025-02-01_055e230a9f4a4326b302456ed21f443d_mafia.exe	86
PID 4788 wrote to memory of 3128	4788	2025-02-01_055e230a9f4a4326b302456ed21f443d_mafia.exe	86
PID 4788 wrote to memory of 3128	4788	2025-02-01_055e230a9f4a4326b302456ed21f443d_mafia.exe	86
PID 4788 wrote to memory of 3368	4788	2025-02-01_055e230a9f4a4326b302456ed21f443d_mafia.exe	88
PID 4788 wrote to memory of 3368	4788	2025-02-01_055e230a9f4a4326b302456ed21f443d_mafia.exe	88
PID 4788 wrote to memory of 3368	4788	2025-02-01_055e230a9f4a4326b302456ed21f443d_mafia.exe	88
PID 4788 wrote to memory of 556	4788	2025-02-01_055e230a9f4a4326b302456ed21f443d_mafia.exe	90
PID 4788 wrote to memory of 556	4788	2025-02-01_055e230a9f4a4326b302456ed21f443d_mafia.exe	90
PID 4788 wrote to memory of 556	4788	2025-02-01_055e230a9f4a4326b302456ed21f443d_mafia.exe	90
PID 4788 wrote to memory of 2204	4788	2025-02-01_055e230a9f4a4326b302456ed21f443d_mafia.exe	92
PID 4788 wrote to memory of 2204	4788	2025-02-01_055e230a9f4a4326b302456ed21f443d_mafia.exe	92
PID 4788 wrote to memory of 2204	4788	2025-02-01_055e230a9f4a4326b302456ed21f443d_mafia.exe	92
PID 4788 wrote to memory of 5088	4788	2025-02-01_055e230a9f4a4326b302456ed21f443d_mafia.exe	94
PID 4788 wrote to memory of 5088	4788	2025-02-01_055e230a9f4a4326b302456ed21f443d_mafia.exe	94
PID 4788 wrote to memory of 5088	4788	2025-02-01_055e230a9f4a4326b302456ed21f443d_mafia.exe	94
PID 4788 wrote to memory of 1976	4788	2025-02-01_055e230a9f4a4326b302456ed21f443d_mafia.exe	97
PID 4788 wrote to memory of 1976	4788	2025-02-01_055e230a9f4a4326b302456ed21f443d_mafia.exe	97
PID 4788 wrote to memory of 1976	4788	2025-02-01_055e230a9f4a4326b302456ed21f443d_mafia.exe	97
PID 5040 wrote to memory of 3680	5040	zzalghfn.exe	100
PID 5040 wrote to memory of 3680	5040	zzalghfn.exe	100
PID 5040 wrote to memory of 3680	5040	zzalghfn.exe	100
PID 5040 wrote to memory of 3680	5040	zzalghfn.exe	100
PID 5040 wrote to memory of 3680	5040	zzalghfn.exe	100

C:\Users\Admin\AppData\Local\Temp\2025-02-01_055e230a9f4a4326b302456ed21f443d_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-01_055e230a9f4a4326b302456ed21f443d_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4788
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ksyurjky\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3128
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\zzalghfn.exe" C:\Windows\SysWOW64\ksyurjky\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3368
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ksyurjky binPath= "C:\Windows\SysWOW64\ksyurjky\zzalghfn.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-01_055e230a9f4a4326b302456ed21f443d_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:556
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ksyurjky "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2204
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ksyurjky
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5088
- 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:1976
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4788 -s 1044
  2⤵
  - Program crash
  PID:3272

C:\Windows\SysWOW64\ksyurjky\zzalghfn.exe
C:\Windows\SysWOW64\ksyurjky\zzalghfn.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-01_055e230a9f4a4326b302456ed21f443d_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5040
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3680
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5040 -s 512
  2⤵
  - Program crash
  PID:1572

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 5040 -ip 5040
1⤵
PID:2012

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 4788 -ip 4788
1⤵
PID:2696

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\zzalghfn.exe

Filesize
12.6MB

MD5
4dc8c3b13adb294c79f1406cb6c8eeb6

SHA1
0995a1f56df9814c381d3c623cf8795958a8827d

SHA256
591f2e7bb536fb650dd48c44511d418d067204280df1745bc2ad6ffe5244717d

SHA512
db339826cec6cbaa8d79b3af8f28c8b035927ff60e56e8e20069cb2dea6d884a3a55028a4fe2c0a5355d967d8db049a3d0894252e219d4230221f0cb1c5aa7aa

Download Submit
memory/3680-11-0x0000000000580000-0x0000000000595000-memory.dmp

Filesize
84KB

Download
memory/3680-22-0x0000000000580000-0x0000000000595000-memory.dmp

Filesize
84KB

Download
memory/3680-14-0x0000000000580000-0x0000000000595000-memory.dmp

Filesize
84KB

Download
memory/3680-21-0x0000000000580000-0x0000000000595000-memory.dmp

Filesize
84KB

Download
memory/3680-20-0x0000000000580000-0x0000000000595000-memory.dmp

Filesize
84KB

Download
memory/4788-17-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/4788-1-0x00000000006A0000-0x00000000007A0000-memory.dmp

Filesize
1024KB

Download
memory/4788-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4788-2-0x00000000001D0000-0x00000000001E3000-memory.dmp

Filesize
76KB

Download
memory/4788-19-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4788-18-0x00000000001D0000-0x00000000001E3000-memory.dmp

Filesize
76KB

Download
memory/5040-10-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/5040-16-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/5040-8-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/5040-9-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads