tofsee | 783769984f55579b42bb8c8ef0eb5583f366714cdd259d693ed7ce8a1f34898b

General

Target

2025-01-13_e90cd7091a0e5827b979fa8024529000_mafia.exe
Size

12.1MB
MD5

e90cd7091a0e5827b979fa8024529000
SHA1

9379994ffb40d7baf0195ba19d247524c6a8bb72
SHA256

783769984f55579b42bb8c8ef0eb5583f366714cdd259d693ed7ce8a1f34898b
SHA512

61dec5935ff2b9d1442fda08920ad2c319d92b173a35ca1af0feaf38e8e927fc6a4906ff16b180b003dd46920fe873b2be9d0dead9523c23664514b4d76116fc
SSDEEP

49152:iqE0YKr3fYPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPn:iqtYc3

Score

10^/10

tofsee discovery evasion 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

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
3472	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\sqissho\ImagePath = "C:\\Windows\\SysWOW64\\sqissho\\jlgmfsc.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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	2025-01-13_e90cd7091a0e5827b979fa8024529000_mafia.exe

Deletes itself 1 IoCs

pid	Process
2136	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4848	jlgmfsc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4848 set thread context of 2136	4848	jlgmfsc.exe	95

Launches sc.exe 3 IoCs

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

pid	Process
4340	sc.exe
1652	sc.exe
528	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
2060	2588	WerFault.exe	83
1756	4848	WerFault.exe	94

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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-13_e90cd7091a0e5827b979fa8024529000_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jlgmfsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2588 wrote to memory of 444	2588	2025-01-13_e90cd7091a0e5827b979fa8024529000_mafia.exe	84
PID 2588 wrote to memory of 444	2588	2025-01-13_e90cd7091a0e5827b979fa8024529000_mafia.exe	84
PID 2588 wrote to memory of 444	2588	2025-01-13_e90cd7091a0e5827b979fa8024529000_mafia.exe	84
PID 2588 wrote to memory of 4884	2588	2025-01-13_e90cd7091a0e5827b979fa8024529000_mafia.exe	86
PID 2588 wrote to memory of 4884	2588	2025-01-13_e90cd7091a0e5827b979fa8024529000_mafia.exe	86
PID 2588 wrote to memory of 4884	2588	2025-01-13_e90cd7091a0e5827b979fa8024529000_mafia.exe	86
PID 2588 wrote to memory of 4340	2588	2025-01-13_e90cd7091a0e5827b979fa8024529000_mafia.exe	88
PID 2588 wrote to memory of 4340	2588	2025-01-13_e90cd7091a0e5827b979fa8024529000_mafia.exe	88
PID 2588 wrote to memory of 4340	2588	2025-01-13_e90cd7091a0e5827b979fa8024529000_mafia.exe	88
PID 2588 wrote to memory of 1652	2588	2025-01-13_e90cd7091a0e5827b979fa8024529000_mafia.exe	90
PID 2588 wrote to memory of 1652	2588	2025-01-13_e90cd7091a0e5827b979fa8024529000_mafia.exe	90
PID 2588 wrote to memory of 1652	2588	2025-01-13_e90cd7091a0e5827b979fa8024529000_mafia.exe	90
PID 2588 wrote to memory of 528	2588	2025-01-13_e90cd7091a0e5827b979fa8024529000_mafia.exe	92
PID 2588 wrote to memory of 528	2588	2025-01-13_e90cd7091a0e5827b979fa8024529000_mafia.exe	92
PID 2588 wrote to memory of 528	2588	2025-01-13_e90cd7091a0e5827b979fa8024529000_mafia.exe	92
PID 4848 wrote to memory of 2136	4848	jlgmfsc.exe	95
PID 4848 wrote to memory of 2136	4848	jlgmfsc.exe	95
PID 4848 wrote to memory of 2136	4848	jlgmfsc.exe	95
PID 4848 wrote to memory of 2136	4848	jlgmfsc.exe	95
PID 4848 wrote to memory of 2136	4848	jlgmfsc.exe	95
PID 2588 wrote to memory of 3472	2588	2025-01-13_e90cd7091a0e5827b979fa8024529000_mafia.exe	97
PID 2588 wrote to memory of 3472	2588	2025-01-13_e90cd7091a0e5827b979fa8024529000_mafia.exe	97
PID 2588 wrote to memory of 3472	2588	2025-01-13_e90cd7091a0e5827b979fa8024529000_mafia.exe	97

C:\Users\Admin\AppData\Local\Temp\2025-01-13_e90cd7091a0e5827b979fa8024529000_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-13_e90cd7091a0e5827b979fa8024529000_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2588
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\sqissho\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:444
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jlgmfsc.exe" C:\Windows\SysWOW64\sqissho\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4884
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create sqissho binPath= "C:\Windows\SysWOW64\sqissho\jlgmfsc.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-13_e90cd7091a0e5827b979fa8024529000_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4340
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description sqissho "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1652
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start sqissho
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:528
- 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:3472
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2588 -s 1192
  2⤵
  - Program crash
  PID:2060

C:\Windows\SysWOW64\sqissho\jlgmfsc.exe
C:\Windows\SysWOW64\sqissho\jlgmfsc.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-13_e90cd7091a0e5827b979fa8024529000_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4848
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2136
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4848 -s 528
  2⤵
  - Program crash
  PID:1756

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 2588 -ip 2588
1⤵
PID:540

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 4848 -ip 4848
1⤵
PID:2064

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\jlgmfsc.exe

Filesize
10.8MB

MD5
566bbb19f3c7cc564d8bc4387efba05c

SHA1
7d5c801927244a0c64a164fe66f23c2c7566bee3

SHA256
18a7e2c03f3ef42f3f49633f77567e9d52126bfb9d7364d3a64cecf242279583

SHA512
eaac74c7a2fced2ef0237b12004949391d2b55f8922b184cdd07adc71a8e4366f368f2541c91103f0d5eb6ed3823b790c41e9ae3754c51469cbf1260d9ca8d64

Download Submit
memory/2136-8-0x0000000000990000-0x00000000009A5000-memory.dmp

Filesize
84KB

Download
memory/2136-14-0x0000000000990000-0x00000000009A5000-memory.dmp

Filesize
84KB

Download
memory/2136-15-0x0000000000990000-0x00000000009A5000-memory.dmp

Filesize
84KB

Download
memory/2588-1-0x0000000003090000-0x0000000003190000-memory.dmp

Filesize
1024KB

Download
memory/2588-2-0x0000000002EE0000-0x0000000002EF3000-memory.dmp

Filesize
76KB

Download
memory/2588-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2588-13-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2588-12-0x0000000002EE0000-0x0000000002EF3000-memory.dmp

Filesize
76KB

Download
memory/2588-11-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/4848-10-0x0000000000400000-0x0000000002DC3000-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