tofsee | 35bdb69421abb26baf673435fc3c3675ea6a3f58ebbf88a2e0f4b669f9b3d4b4

General

Target

2025-02-05_3636e5c97a13d71ac928ebc9953f2e42_mafia.exe
Size

14.6MB
MD5

3636e5c97a13d71ac928ebc9953f2e42
SHA1

a2fd90570f9ba78949236d5b6fb54e34f5fedf11
SHA256

35bdb69421abb26baf673435fc3c3675ea6a3f58ebbf88a2e0f4b669f9b3d4b4
SHA512

fa2b2d0381fe3ed992a285f22b44c5df1f78bf12ef3120c7d8522bb347ec8af6c8f7b3e4a57f414d29e751d9a022d98c822b80cc6efd69d532eeb17f351cebf5
SSDEEP

24576:ZpomTTN9tttttttttttttttttttttttttttttttttttttttttttttttttttttttX:Doo

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
1464	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\jvjlukbh\ImagePath = "C:\\Windows\\SysWOW64\\jvjlukbh\\kmfqxftj.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	2025-02-05_3636e5c97a13d71ac928ebc9953f2e42_mafia.exe

Deletes itself 1 IoCs

pid	Process
3704	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4612	kmfqxftj.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4612 set thread context of 3704	4612	kmfqxftj.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
2172	sc.exe
1384	sc.exe
2212	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 queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4896	3140	WerFault.exe	81
4380	4612	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	kmfqxftj.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-05_3636e5c97a13d71ac928ebc9953f2e42_mafia.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	sc.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

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3140 wrote to memory of 1332	3140	2025-02-05_3636e5c97a13d71ac928ebc9953f2e42_mafia.exe	82
PID 3140 wrote to memory of 1332	3140	2025-02-05_3636e5c97a13d71ac928ebc9953f2e42_mafia.exe	82
PID 3140 wrote to memory of 1332	3140	2025-02-05_3636e5c97a13d71ac928ebc9953f2e42_mafia.exe	82
PID 3140 wrote to memory of 3692	3140	2025-02-05_3636e5c97a13d71ac928ebc9953f2e42_mafia.exe	84
PID 3140 wrote to memory of 3692	3140	2025-02-05_3636e5c97a13d71ac928ebc9953f2e42_mafia.exe	84
PID 3140 wrote to memory of 3692	3140	2025-02-05_3636e5c97a13d71ac928ebc9953f2e42_mafia.exe	84
PID 3140 wrote to memory of 1384	3140	2025-02-05_3636e5c97a13d71ac928ebc9953f2e42_mafia.exe	86
PID 3140 wrote to memory of 1384	3140	2025-02-05_3636e5c97a13d71ac928ebc9953f2e42_mafia.exe	86
PID 3140 wrote to memory of 1384	3140	2025-02-05_3636e5c97a13d71ac928ebc9953f2e42_mafia.exe	86
PID 3140 wrote to memory of 2212	3140	2025-02-05_3636e5c97a13d71ac928ebc9953f2e42_mafia.exe	88
PID 3140 wrote to memory of 2212	3140	2025-02-05_3636e5c97a13d71ac928ebc9953f2e42_mafia.exe	88
PID 3140 wrote to memory of 2212	3140	2025-02-05_3636e5c97a13d71ac928ebc9953f2e42_mafia.exe	88
PID 3140 wrote to memory of 2172	3140	2025-02-05_3636e5c97a13d71ac928ebc9953f2e42_mafia.exe	90
PID 3140 wrote to memory of 2172	3140	2025-02-05_3636e5c97a13d71ac928ebc9953f2e42_mafia.exe	90
PID 3140 wrote to memory of 2172	3140	2025-02-05_3636e5c97a13d71ac928ebc9953f2e42_mafia.exe	90
PID 3140 wrote to memory of 1464	3140	2025-02-05_3636e5c97a13d71ac928ebc9953f2e42_mafia.exe	93
PID 3140 wrote to memory of 1464	3140	2025-02-05_3636e5c97a13d71ac928ebc9953f2e42_mafia.exe	93
PID 3140 wrote to memory of 1464	3140	2025-02-05_3636e5c97a13d71ac928ebc9953f2e42_mafia.exe	93
PID 4612 wrote to memory of 3704	4612	kmfqxftj.exe	98
PID 4612 wrote to memory of 3704	4612	kmfqxftj.exe	98
PID 4612 wrote to memory of 3704	4612	kmfqxftj.exe	98
PID 4612 wrote to memory of 3704	4612	kmfqxftj.exe	98
PID 4612 wrote to memory of 3704	4612	kmfqxftj.exe	98

C:\Users\Admin\AppData\Local\Temp\2025-02-05_3636e5c97a13d71ac928ebc9953f2e42_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-05_3636e5c97a13d71ac928ebc9953f2e42_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3140
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\jvjlukbh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1332
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kmfqxftj.exe" C:\Windows\SysWOW64\jvjlukbh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3692
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create jvjlukbh binPath= "C:\Windows\SysWOW64\jvjlukbh\kmfqxftj.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-05_3636e5c97a13d71ac928ebc9953f2e42_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1384
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description jvjlukbh "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2212
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start jvjlukbh
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2172
- 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:1464
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3140 -s 1220
  2⤵
  - Program crash
  PID:4896

C:\Windows\SysWOW64\jvjlukbh\kmfqxftj.exe
C:\Windows\SysWOW64\jvjlukbh\kmfqxftj.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-05_3636e5c97a13d71ac928ebc9953f2e42_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4612
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3704
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4612 -s 508
  2⤵
  - Program crash
  PID:4380

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 3140 -ip 3140
1⤵
PID:3656

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 4612 -ip 4612
1⤵
PID:1844

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\kmfqxftj.exe

Filesize
11.6MB

MD5
047d22c334285b77b26ed7e9d2027344

SHA1
e08df0bc20aeeeb186afc968a98228f39bd757d3

SHA256
590b34c9dc7453ca793e2492c81876fd84a9a9347c2fa3816d9509ad7d50e01f

SHA512
00e7fe479adfacb82f38e7e71e3c3e4bfeecfbbe6d13978d380e3dfe9452f583207b7e394d73be9a4670eb4e8da8f13bf6998e9208955e50c3310edbd1bbee81

Download Submit
memory/3140-8-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/3140-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3140-1-0x0000000000720000-0x0000000000820000-memory.dmp

Filesize
1024KB

Download
memory/3140-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3140-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3140-2-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/3704-14-0x00000000012B0000-0x00000000012C5000-memory.dmp

Filesize
84KB

Download
memory/3704-16-0x00000000012B0000-0x00000000012C5000-memory.dmp

Filesize
84KB

Download
memory/3704-17-0x00000000012B0000-0x00000000012C5000-memory.dmp

Filesize
84KB

Download
memory/4612-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4612-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4612-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4612-19-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads