tofsee | b147e4cc2fce55d970a4a30890b0818c0b46cc33fd16cb0f33451d2ff50c4baf

General

Target

2025-01-31_479648eb2561691a81eb4c5a850e48a0_mafia.exe
Size

11.4MB
MD5

479648eb2561691a81eb4c5a850e48a0
SHA1

4d3d825f85dcb0901a219add3176a686fdc6a72b
SHA256

b147e4cc2fce55d970a4a30890b0818c0b46cc33fd16cb0f33451d2ff50c4baf
SHA512

6214f07b23740e4204c3b6e9b20b5e76098a7fd4164d9491965a2427eb3817bec29e3a9642bea673b8128bd4e029d4c84b50bd099530238fab8baab21c5a4dd1
SSDEEP

49152:0qE0YKr3fYPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPn:0qtYc3

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
1240	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\fphtednx\ImagePath = "C:\\Windows\\SysWOW64\\fphtednx\\ktnskjea.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-1-5-21-1121399784-3202166597-3503557106-1000\Control Panel\International\Geo\Nation	2025-01-31_479648eb2561691a81eb4c5a850e48a0_mafia.exe

Deletes itself 1 IoCs

pid	Process
3372	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2404	ktnskjea.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2404 set thread context of 3372	2404	ktnskjea.exe	100

Launches sc.exe 3 IoCs

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

pid	Process
3992	sc.exe
1804	sc.exe
2380	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
3052	2404	WerFault.exe	95
3264	4632	WerFault.exe	81

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	2025-01-31_479648eb2561691a81eb4c5a850e48a0_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ktnskjea.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	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4632 wrote to memory of 2056	4632	2025-01-31_479648eb2561691a81eb4c5a850e48a0_mafia.exe	85
PID 4632 wrote to memory of 2056	4632	2025-01-31_479648eb2561691a81eb4c5a850e48a0_mafia.exe	85
PID 4632 wrote to memory of 2056	4632	2025-01-31_479648eb2561691a81eb4c5a850e48a0_mafia.exe	85
PID 4632 wrote to memory of 2456	4632	2025-01-31_479648eb2561691a81eb4c5a850e48a0_mafia.exe	87
PID 4632 wrote to memory of 2456	4632	2025-01-31_479648eb2561691a81eb4c5a850e48a0_mafia.exe	87
PID 4632 wrote to memory of 2456	4632	2025-01-31_479648eb2561691a81eb4c5a850e48a0_mafia.exe	87
PID 4632 wrote to memory of 1804	4632	2025-01-31_479648eb2561691a81eb4c5a850e48a0_mafia.exe	89
PID 4632 wrote to memory of 1804	4632	2025-01-31_479648eb2561691a81eb4c5a850e48a0_mafia.exe	89
PID 4632 wrote to memory of 1804	4632	2025-01-31_479648eb2561691a81eb4c5a850e48a0_mafia.exe	89
PID 4632 wrote to memory of 2380	4632	2025-01-31_479648eb2561691a81eb4c5a850e48a0_mafia.exe	91
PID 4632 wrote to memory of 2380	4632	2025-01-31_479648eb2561691a81eb4c5a850e48a0_mafia.exe	91
PID 4632 wrote to memory of 2380	4632	2025-01-31_479648eb2561691a81eb4c5a850e48a0_mafia.exe	91
PID 4632 wrote to memory of 3992	4632	2025-01-31_479648eb2561691a81eb4c5a850e48a0_mafia.exe	93
PID 4632 wrote to memory of 3992	4632	2025-01-31_479648eb2561691a81eb4c5a850e48a0_mafia.exe	93
PID 4632 wrote to memory of 3992	4632	2025-01-31_479648eb2561691a81eb4c5a850e48a0_mafia.exe	93
PID 4632 wrote to memory of 1240	4632	2025-01-31_479648eb2561691a81eb4c5a850e48a0_mafia.exe	96
PID 4632 wrote to memory of 1240	4632	2025-01-31_479648eb2561691a81eb4c5a850e48a0_mafia.exe	96
PID 4632 wrote to memory of 1240	4632	2025-01-31_479648eb2561691a81eb4c5a850e48a0_mafia.exe	96
PID 2404 wrote to memory of 3372	2404	ktnskjea.exe	100
PID 2404 wrote to memory of 3372	2404	ktnskjea.exe	100
PID 2404 wrote to memory of 3372	2404	ktnskjea.exe	100
PID 2404 wrote to memory of 3372	2404	ktnskjea.exe	100
PID 2404 wrote to memory of 3372	2404	ktnskjea.exe	100

C:\Users\Admin\AppData\Local\Temp\2025-01-31_479648eb2561691a81eb4c5a850e48a0_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-31_479648eb2561691a81eb4c5a850e48a0_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4632
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\fphtednx\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2056
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ktnskjea.exe" C:\Windows\SysWOW64\fphtednx\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2456
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create fphtednx binPath= "C:\Windows\SysWOW64\fphtednx\ktnskjea.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-31_479648eb2561691a81eb4c5a850e48a0_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1804
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description fphtednx "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2380
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start fphtednx
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3992
- 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:1240
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4632 -s 1260
  2⤵
  - Program crash
  PID:3264

C:\Windows\SysWOW64\fphtednx\ktnskjea.exe
C:\Windows\SysWOW64\fphtednx\ktnskjea.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-31_479648eb2561691a81eb4c5a850e48a0_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2404
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3372
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2404 -s 520
  2⤵
  - Program crash
  PID:3052

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 4632 -ip 4632
1⤵
PID:3672

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 2404 -ip 2404
1⤵
PID:4548

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\ktnskjea.exe

Filesize
11.1MB

MD5
0ebe86ddace953b74b0504def7312840

SHA1
7adf3c20f299ea73afe6ac1042965aef3dff1e99

SHA256
83fbf3dd54cfb6bb10b93154e5770791815eb849d332a1bafb86a6469c08b90a

SHA512
a781776729a121feaf269b8de161fdf02464d621448e97e09bef54b7e69e66e8eece32de2cd24ca347b17071e287baeb1cbbf60e7826246b727bfe5e007ee18c

Download Submit
memory/2404-10-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/3372-8-0x0000000000380000-0x0000000000395000-memory.dmp

Filesize
84KB

Download
memory/3372-14-0x0000000000380000-0x0000000000395000-memory.dmp

Filesize
84KB

Download
memory/3372-15-0x0000000000380000-0x0000000000395000-memory.dmp

Filesize
84KB

Download
memory/4632-1-0x0000000002E10000-0x0000000002F10000-memory.dmp

Filesize
1024KB

Download
memory/4632-2-0x0000000002F20000-0x0000000002F33000-memory.dmp

Filesize
76KB

Download
memory/4632-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4632-13-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4632-12-0x0000000002F20000-0x0000000002F33000-memory.dmp

Filesize
76KB

Download
memory/4632-11-0x0000000000400000-0x0000000002DC3000-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