tofsee | 0fd46860fa68b2e1ab04ce983213eb847d10cf1579bce69780e8059015d6ed50

General

Target

2025-02-02_d0609b127ab371e7e8c2a7a9c1c125d3_mafia.exe
Size

11.0MB
MD5

d0609b127ab371e7e8c2a7a9c1c125d3
SHA1

5e96aa8f0505ffc8252c6a5f0cf683785e941cba
SHA256

0fd46860fa68b2e1ab04ce983213eb847d10cf1579bce69780e8059015d6ed50
SHA512

ccb251f9592c738256d678085430ffd19c0bb55954f2a66d96f46229966911c96a41b5bde6e12c6b9018b8ca0bcc53650df6a66314f5e6cad684db4e366770af
SSDEEP

3072:0LBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:xOMdRQr7OB0ypmMXnl8XEPM3noSWOC

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
4568	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\kplxydyb\ImagePath = "C:\\Windows\\SysWOW64\\kplxydyb\\sjfmdcgk.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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	2025-02-02_d0609b127ab371e7e8c2a7a9c1c125d3_mafia.exe

Deletes itself 1 IoCs

pid	Process
1360	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1472	sjfmdcgk.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1472 set thread context of 1360	1472	sjfmdcgk.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
888	sc.exe
4268	sc.exe
4672	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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3032	4068	WerFault.exe	81
2648	1472	WerFault.exe	92

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	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-02_d0609b127ab371e7e8c2a7a9c1c125d3_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sjfmdcgk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4068 wrote to memory of 224	4068	2025-02-02_d0609b127ab371e7e8c2a7a9c1c125d3_mafia.exe	82
PID 4068 wrote to memory of 224	4068	2025-02-02_d0609b127ab371e7e8c2a7a9c1c125d3_mafia.exe	82
PID 4068 wrote to memory of 224	4068	2025-02-02_d0609b127ab371e7e8c2a7a9c1c125d3_mafia.exe	82
PID 4068 wrote to memory of 5056	4068	2025-02-02_d0609b127ab371e7e8c2a7a9c1c125d3_mafia.exe	84
PID 4068 wrote to memory of 5056	4068	2025-02-02_d0609b127ab371e7e8c2a7a9c1c125d3_mafia.exe	84
PID 4068 wrote to memory of 5056	4068	2025-02-02_d0609b127ab371e7e8c2a7a9c1c125d3_mafia.exe	84
PID 4068 wrote to memory of 4268	4068	2025-02-02_d0609b127ab371e7e8c2a7a9c1c125d3_mafia.exe	86
PID 4068 wrote to memory of 4268	4068	2025-02-02_d0609b127ab371e7e8c2a7a9c1c125d3_mafia.exe	86
PID 4068 wrote to memory of 4268	4068	2025-02-02_d0609b127ab371e7e8c2a7a9c1c125d3_mafia.exe	86
PID 4068 wrote to memory of 4672	4068	2025-02-02_d0609b127ab371e7e8c2a7a9c1c125d3_mafia.exe	88
PID 4068 wrote to memory of 4672	4068	2025-02-02_d0609b127ab371e7e8c2a7a9c1c125d3_mafia.exe	88
PID 4068 wrote to memory of 4672	4068	2025-02-02_d0609b127ab371e7e8c2a7a9c1c125d3_mafia.exe	88
PID 4068 wrote to memory of 888	4068	2025-02-02_d0609b127ab371e7e8c2a7a9c1c125d3_mafia.exe	90
PID 4068 wrote to memory of 888	4068	2025-02-02_d0609b127ab371e7e8c2a7a9c1c125d3_mafia.exe	90
PID 4068 wrote to memory of 888	4068	2025-02-02_d0609b127ab371e7e8c2a7a9c1c125d3_mafia.exe	90
PID 4068 wrote to memory of 4568	4068	2025-02-02_d0609b127ab371e7e8c2a7a9c1c125d3_mafia.exe	93
PID 4068 wrote to memory of 4568	4068	2025-02-02_d0609b127ab371e7e8c2a7a9c1c125d3_mafia.exe	93
PID 4068 wrote to memory of 4568	4068	2025-02-02_d0609b127ab371e7e8c2a7a9c1c125d3_mafia.exe	93
PID 1472 wrote to memory of 1360	1472	sjfmdcgk.exe	98
PID 1472 wrote to memory of 1360	1472	sjfmdcgk.exe	98
PID 1472 wrote to memory of 1360	1472	sjfmdcgk.exe	98
PID 1472 wrote to memory of 1360	1472	sjfmdcgk.exe	98
PID 1472 wrote to memory of 1360	1472	sjfmdcgk.exe	98

C:\Users\Admin\AppData\Local\Temp\2025-02-02_d0609b127ab371e7e8c2a7a9c1c125d3_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-02_d0609b127ab371e7e8c2a7a9c1c125d3_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4068
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\kplxydyb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:224
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\sjfmdcgk.exe" C:\Windows\SysWOW64\kplxydyb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5056
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create kplxydyb binPath= "C:\Windows\SysWOW64\kplxydyb\sjfmdcgk.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-02_d0609b127ab371e7e8c2a7a9c1c125d3_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4268
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description kplxydyb "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4672
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start kplxydyb
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:888
- 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:4568
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4068 -s 664
  2⤵
  - Program crash
  PID:3032

C:\Windows\SysWOW64\kplxydyb\sjfmdcgk.exe
C:\Windows\SysWOW64\kplxydyb\sjfmdcgk.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-02_d0609b127ab371e7e8c2a7a9c1c125d3_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1472
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1360
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1472 -s 508
  2⤵
  - Program crash
  PID:2648

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4068 -ip 4068
1⤵
PID:940

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 1472 -ip 1472
1⤵
PID:3328

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\sjfmdcgk.exe

Filesize
12.9MB

MD5
87e9c3441c0c97702c6e909366228c51

SHA1
e502e338eef2390a8faaf06a01a78cea837cc3ce

SHA256
a9925cb3c6732a11ccd77e532856931ebef635a3821ac541f7aa695e65e7470d

SHA512
b723da57ee0d8f66d32a521241c78d82162c941b03eb3261452d3263a22b97a7aedaf7a1c5aa3fa15adad34125388830bf89647d972f044bbf10de1b778b45a1

Download Submit
memory/1360-14-0x0000000000A20000-0x0000000000A35000-memory.dmp

Filesize
84KB

Download
memory/1360-17-0x0000000000A20000-0x0000000000A35000-memory.dmp

Filesize
84KB

Download
memory/1360-16-0x0000000000A20000-0x0000000000A35000-memory.dmp

Filesize
84KB

Download
memory/1472-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1472-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1472-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1472-19-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4068-8-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/4068-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4068-1-0x00000000006D0000-0x00000000007D0000-memory.dmp

Filesize
1024KB

Download
memory/4068-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4068-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4068-2-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads