tofsee | 91b038d38e75721357bee7068989af43dfb3aaee68d3e228783b91abbba229d8

General

Target

2025-01-27_315bb49856f11fb734d4f765166c4591_mafia.exe
Size

12.5MB
MD5

315bb49856f11fb734d4f765166c4591
SHA1

d55beee88ccae7a33151bc3f21ee0eba1453c688
SHA256

91b038d38e75721357bee7068989af43dfb3aaee68d3e228783b91abbba229d8
SHA512

f7c6695cc04c6d8941e4293ce3ca1c34fb68f6fc4c969f9fcfd30a83f852c460ed87e2014463cab76f93963705f1d394b4db551ee9aa9227e1f3b58ee0390411
SSDEEP

393216:aXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXn:

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
3240	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\babxpais\ImagePath = "C:\\Windows\\SysWOW64\\babxpais\\ydnicoln.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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	2025-01-27_315bb49856f11fb734d4f765166c4591_mafia.exe

Deletes itself 1 IoCs

pid	Process
4760	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
880	ydnicoln.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 880 set thread context of 4760	880	ydnicoln.exe	97

Launches sc.exe 3 IoCs

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

pid	Process
1812	sc.exe
1728	sc.exe
1520	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ydnicoln.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-27_315bb49856f11fb734d4f765166c4591_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 1648 wrote to memory of 4652	1648	2025-01-27_315bb49856f11fb734d4f765166c4591_mafia.exe	83
PID 1648 wrote to memory of 4652	1648	2025-01-27_315bb49856f11fb734d4f765166c4591_mafia.exe	83
PID 1648 wrote to memory of 4652	1648	2025-01-27_315bb49856f11fb734d4f765166c4591_mafia.exe	83
PID 1648 wrote to memory of 1844	1648	2025-01-27_315bb49856f11fb734d4f765166c4591_mafia.exe	85
PID 1648 wrote to memory of 1844	1648	2025-01-27_315bb49856f11fb734d4f765166c4591_mafia.exe	85
PID 1648 wrote to memory of 1844	1648	2025-01-27_315bb49856f11fb734d4f765166c4591_mafia.exe	85
PID 1648 wrote to memory of 1812	1648	2025-01-27_315bb49856f11fb734d4f765166c4591_mafia.exe	87
PID 1648 wrote to memory of 1812	1648	2025-01-27_315bb49856f11fb734d4f765166c4591_mafia.exe	87
PID 1648 wrote to memory of 1812	1648	2025-01-27_315bb49856f11fb734d4f765166c4591_mafia.exe	87
PID 1648 wrote to memory of 1728	1648	2025-01-27_315bb49856f11fb734d4f765166c4591_mafia.exe	89
PID 1648 wrote to memory of 1728	1648	2025-01-27_315bb49856f11fb734d4f765166c4591_mafia.exe	89
PID 1648 wrote to memory of 1728	1648	2025-01-27_315bb49856f11fb734d4f765166c4591_mafia.exe	89
PID 1648 wrote to memory of 1520	1648	2025-01-27_315bb49856f11fb734d4f765166c4591_mafia.exe	92
PID 1648 wrote to memory of 1520	1648	2025-01-27_315bb49856f11fb734d4f765166c4591_mafia.exe	92
PID 1648 wrote to memory of 1520	1648	2025-01-27_315bb49856f11fb734d4f765166c4591_mafia.exe	92
PID 1648 wrote to memory of 3240	1648	2025-01-27_315bb49856f11fb734d4f765166c4591_mafia.exe	95
PID 1648 wrote to memory of 3240	1648	2025-01-27_315bb49856f11fb734d4f765166c4591_mafia.exe	95
PID 1648 wrote to memory of 3240	1648	2025-01-27_315bb49856f11fb734d4f765166c4591_mafia.exe	95
PID 880 wrote to memory of 4760	880	ydnicoln.exe	97
PID 880 wrote to memory of 4760	880	ydnicoln.exe	97
PID 880 wrote to memory of 4760	880	ydnicoln.exe	97
PID 880 wrote to memory of 4760	880	ydnicoln.exe	97
PID 880 wrote to memory of 4760	880	ydnicoln.exe	97

C:\Users\Admin\AppData\Local\Temp\2025-01-27_315bb49856f11fb734d4f765166c4591_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-27_315bb49856f11fb734d4f765166c4591_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1648
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\babxpais\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4652
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ydnicoln.exe" C:\Windows\SysWOW64\babxpais\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1844
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create babxpais binPath= "C:\Windows\SysWOW64\babxpais\ydnicoln.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-27_315bb49856f11fb734d4f765166c4591_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1812
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description babxpais "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1728
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start babxpais
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1520
- 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:3240

C:\Windows\SysWOW64\babxpais\ydnicoln.exe
C:\Windows\SysWOW64\babxpais\ydnicoln.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-27_315bb49856f11fb734d4f765166c4591_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:880
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4760

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\ydnicoln.exe

Filesize
10.6MB

MD5
ae6b043fdff71095c1bfc099a207bd1f

SHA1
5141fb80fed9ea1be85b2cf3c2a8f063ab0d31f0

SHA256
f1006e99f00f214be069426df2407ee9140d2043e2d343eb49d4ab31f50971ae

SHA512
03f707b026f2ecc20862e1c2ef483fbcc7312fdb8fd9859f83c3539c4d49bf0e119dd1297a5a96a731ab6a09469d410dca1c6f2f98b27466386d44a944680520

Download Submit
memory/880-11-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/880-17-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/880-12-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/1648-7-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/1648-8-0x0000000000570000-0x0000000000583000-memory.dmp

Filesize
76KB

Download
memory/1648-1-0x0000000000740000-0x0000000000840000-memory.dmp

Filesize
1024KB

Download
memory/1648-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1648-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1648-2-0x0000000000570000-0x0000000000583000-memory.dmp

Filesize
76KB

Download
memory/4760-13-0x00000000012C0000-0x00000000012D5000-memory.dmp

Filesize
84KB

Download
memory/4760-18-0x00000000012C0000-0x00000000012D5000-memory.dmp

Filesize
84KB

Download
memory/4760-19-0x00000000012C0000-0x00000000012D5000-memory.dmp

Filesize
84KB

Download
memory/4760-20-0x00000000012C0000-0x00000000012D5000-memory.dmp

Filesize
84KB

Download
memory/4760-21-0x00000000012C0000-0x00000000012D5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads