tofsee | 2ebbb4ef6e9f5211032e4bad41c177a78da76bdcf758763ac303b4d83e337101

General

Target

2024-12-29_a96468e58b3466b20b0c3ae964bad440_mafia.exe
Size

14.0MB
MD5

a96468e58b3466b20b0c3ae964bad440
SHA1

0315c00f420825d06c91fe193dbfa8ed993b591d
SHA256

2ebbb4ef6e9f5211032e4bad41c177a78da76bdcf758763ac303b4d83e337101
SHA512

0d303dbf1b87bb3247e7c834cf169d5a30ee8cc4b0a607fd93fad78a06c0d124e95d7bea6099cb81cbad688294c2bd41c4ef2ceec5a9af1d184ee1984b8c47b4
SSDEEP

3072:MLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:pOMdRQr7OB0ypmMXnl8XEPM3noSWOC

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
3408	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\govkbase\ImagePath = "C:\\Windows\\SysWOW64\\govkbase\\embfsqzz.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	2024-12-29_a96468e58b3466b20b0c3ae964bad440_mafia.exe

Deletes itself 1 IoCs

pid	Process
4784	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3412	embfsqzz.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3412 set thread context of 4784	3412	embfsqzz.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
2588	sc.exe
3676	sc.exe
3372	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
5052	2204	WerFault.exe	81
5024	3412	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	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	2024-12-29_a96468e58b3466b20b0c3ae964bad440_mafia.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	embfsqzz.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2204 wrote to memory of 2372	2204	2024-12-29_a96468e58b3466b20b0c3ae964bad440_mafia.exe	82
PID 2204 wrote to memory of 2372	2204	2024-12-29_a96468e58b3466b20b0c3ae964bad440_mafia.exe	82
PID 2204 wrote to memory of 2372	2204	2024-12-29_a96468e58b3466b20b0c3ae964bad440_mafia.exe	82
PID 2204 wrote to memory of 2836	2204	2024-12-29_a96468e58b3466b20b0c3ae964bad440_mafia.exe	84
PID 2204 wrote to memory of 2836	2204	2024-12-29_a96468e58b3466b20b0c3ae964bad440_mafia.exe	84
PID 2204 wrote to memory of 2836	2204	2024-12-29_a96468e58b3466b20b0c3ae964bad440_mafia.exe	84
PID 2204 wrote to memory of 2588	2204	2024-12-29_a96468e58b3466b20b0c3ae964bad440_mafia.exe	86
PID 2204 wrote to memory of 2588	2204	2024-12-29_a96468e58b3466b20b0c3ae964bad440_mafia.exe	86
PID 2204 wrote to memory of 2588	2204	2024-12-29_a96468e58b3466b20b0c3ae964bad440_mafia.exe	86
PID 2204 wrote to memory of 3676	2204	2024-12-29_a96468e58b3466b20b0c3ae964bad440_mafia.exe	88
PID 2204 wrote to memory of 3676	2204	2024-12-29_a96468e58b3466b20b0c3ae964bad440_mafia.exe	88
PID 2204 wrote to memory of 3676	2204	2024-12-29_a96468e58b3466b20b0c3ae964bad440_mafia.exe	88
PID 2204 wrote to memory of 3372	2204	2024-12-29_a96468e58b3466b20b0c3ae964bad440_mafia.exe	90
PID 2204 wrote to memory of 3372	2204	2024-12-29_a96468e58b3466b20b0c3ae964bad440_mafia.exe	90
PID 2204 wrote to memory of 3372	2204	2024-12-29_a96468e58b3466b20b0c3ae964bad440_mafia.exe	90
PID 2204 wrote to memory of 3408	2204	2024-12-29_a96468e58b3466b20b0c3ae964bad440_mafia.exe	93
PID 2204 wrote to memory of 3408	2204	2024-12-29_a96468e58b3466b20b0c3ae964bad440_mafia.exe	93
PID 2204 wrote to memory of 3408	2204	2024-12-29_a96468e58b3466b20b0c3ae964bad440_mafia.exe	93
PID 3412 wrote to memory of 4784	3412	embfsqzz.exe	98
PID 3412 wrote to memory of 4784	3412	embfsqzz.exe	98
PID 3412 wrote to memory of 4784	3412	embfsqzz.exe	98
PID 3412 wrote to memory of 4784	3412	embfsqzz.exe	98
PID 3412 wrote to memory of 4784	3412	embfsqzz.exe	98

C:\Users\Admin\AppData\Local\Temp\2024-12-29_a96468e58b3466b20b0c3ae964bad440_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-29_a96468e58b3466b20b0c3ae964bad440_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2204
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\govkbase\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2372
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\embfsqzz.exe" C:\Windows\SysWOW64\govkbase\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2836
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create govkbase binPath= "C:\Windows\SysWOW64\govkbase\embfsqzz.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-12-29_a96468e58b3466b20b0c3ae964bad440_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2588
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description govkbase "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3676
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start govkbase
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3372
- 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:3408
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2204 -s 1296
  2⤵
  - Program crash
  PID:5052

C:\Windows\SysWOW64\govkbase\embfsqzz.exe
C:\Windows\SysWOW64\govkbase\embfsqzz.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-12-29_a96468e58b3466b20b0c3ae964bad440_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3412
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4784
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3412 -s 508
  2⤵
  - Program crash
  PID:5024

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2204 -ip 2204
1⤵
PID:4684

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 3412 -ip 3412
1⤵
PID:2148

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\embfsqzz.exe

Filesize
11.7MB

MD5
e83049b18c14959ed27446ef0efceba5

SHA1
283041dc1182663450547935b60ec42709412eda

SHA256
0ce4c0093fe649941ca157dd892d42b0509692bf95956ada81094b17922d30cf

SHA512
c7b8775c66e9bbf9bb0c8e0bb13cd8ffefa49e1649f50714fae6f835bd2a5b0ae3652d430a952625428e6b620371bb99be04319e7f10b1cd840db50be20caaf6

Download Submit
memory/2204-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2204-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2204-2-0x00000000001D0000-0x00000000001E3000-memory.dmp

Filesize
76KB

Download
memory/2204-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2204-8-0x00000000001D0000-0x00000000001E3000-memory.dmp

Filesize
76KB

Download
memory/2204-1-0x00000000004D0000-0x00000000005D0000-memory.dmp

Filesize
1024KB

Download
memory/3412-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3412-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3412-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3412-19-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4784-14-0x00000000003B0000-0x00000000003C5000-memory.dmp

Filesize
84KB

Download
memory/4784-16-0x00000000003B0000-0x00000000003C5000-memory.dmp

Filesize
84KB

Download
memory/4784-17-0x00000000003B0000-0x00000000003C5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads