tofsee | fac5cd2d57a21023e308cf11abd08451b34d7abb554e394667bc309b7393fb03

General

Target

2025-02-02_c45f46ece394476c854ba9b0793fb436_mafia.exe
Size

11.7MB
MD5

c45f46ece394476c854ba9b0793fb436
SHA1

a8676eb872a360a53fd186542b76c29a68276e4d
SHA256

fac5cd2d57a21023e308cf11abd08451b34d7abb554e394667bc309b7393fb03
SHA512

a7337427fc4885e62d794092dca6959a0b6523106d72eb1f3de8b111b56065644cdb2c9c61ac385713125f99c079f23892f65af563b7bc6280e675eec1cccb0f
SSDEEP

196608:NyXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX4:YXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXI

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
1216	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\tmvewzvk\ImagePath = "C:\\Windows\\SysWOW64\\tmvewzvk\\baoqebcu.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-1-5-21-1412605595-2147700071-3468511006-1000\Control Panel\International\Geo\Nation	2025-02-02_c45f46ece394476c854ba9b0793fb436_mafia.exe

Deletes itself 1 IoCs

pid	Process
2028	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4544	baoqebcu.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4544 set thread context of 2028	4544	baoqebcu.exe	97

Launches sc.exe 3 IoCs

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

pid	Process
3108	sc.exe
4468	sc.exe
3532	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

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	netsh.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	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_c45f46ece394476c854ba9b0793fb436_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	baoqebcu.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2524 wrote to memory of 4492	2524	2025-02-02_c45f46ece394476c854ba9b0793fb436_mafia.exe	86
PID 2524 wrote to memory of 4492	2524	2025-02-02_c45f46ece394476c854ba9b0793fb436_mafia.exe	86
PID 2524 wrote to memory of 4492	2524	2025-02-02_c45f46ece394476c854ba9b0793fb436_mafia.exe	86
PID 2524 wrote to memory of 2260	2524	2025-02-02_c45f46ece394476c854ba9b0793fb436_mafia.exe	88
PID 2524 wrote to memory of 2260	2524	2025-02-02_c45f46ece394476c854ba9b0793fb436_mafia.exe	88
PID 2524 wrote to memory of 2260	2524	2025-02-02_c45f46ece394476c854ba9b0793fb436_mafia.exe	88
PID 2524 wrote to memory of 4468	2524	2025-02-02_c45f46ece394476c854ba9b0793fb436_mafia.exe	90
PID 2524 wrote to memory of 4468	2524	2025-02-02_c45f46ece394476c854ba9b0793fb436_mafia.exe	90
PID 2524 wrote to memory of 4468	2524	2025-02-02_c45f46ece394476c854ba9b0793fb436_mafia.exe	90
PID 2524 wrote to memory of 3532	2524	2025-02-02_c45f46ece394476c854ba9b0793fb436_mafia.exe	92
PID 2524 wrote to memory of 3532	2524	2025-02-02_c45f46ece394476c854ba9b0793fb436_mafia.exe	92
PID 2524 wrote to memory of 3532	2524	2025-02-02_c45f46ece394476c854ba9b0793fb436_mafia.exe	92
PID 2524 wrote to memory of 3108	2524	2025-02-02_c45f46ece394476c854ba9b0793fb436_mafia.exe	94
PID 2524 wrote to memory of 3108	2524	2025-02-02_c45f46ece394476c854ba9b0793fb436_mafia.exe	94
PID 2524 wrote to memory of 3108	2524	2025-02-02_c45f46ece394476c854ba9b0793fb436_mafia.exe	94
PID 4544 wrote to memory of 2028	4544	baoqebcu.exe	97
PID 4544 wrote to memory of 2028	4544	baoqebcu.exe	97
PID 4544 wrote to memory of 2028	4544	baoqebcu.exe	97
PID 4544 wrote to memory of 2028	4544	baoqebcu.exe	97
PID 4544 wrote to memory of 2028	4544	baoqebcu.exe	97
PID 2524 wrote to memory of 1216	2524	2025-02-02_c45f46ece394476c854ba9b0793fb436_mafia.exe	98
PID 2524 wrote to memory of 1216	2524	2025-02-02_c45f46ece394476c854ba9b0793fb436_mafia.exe	98
PID 2524 wrote to memory of 1216	2524	2025-02-02_c45f46ece394476c854ba9b0793fb436_mafia.exe	98

C:\Users\Admin\AppData\Local\Temp\2025-02-02_c45f46ece394476c854ba9b0793fb436_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-02_c45f46ece394476c854ba9b0793fb436_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2524
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\tmvewzvk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4492
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\baoqebcu.exe" C:\Windows\SysWOW64\tmvewzvk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2260
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create tmvewzvk binPath= "C:\Windows\SysWOW64\tmvewzvk\baoqebcu.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-02_c45f46ece394476c854ba9b0793fb436_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4468
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description tmvewzvk "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3532
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start tmvewzvk
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3108
- 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:1216

C:\Windows\SysWOW64\tmvewzvk\baoqebcu.exe
C:\Windows\SysWOW64\tmvewzvk\baoqebcu.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-02_c45f46ece394476c854ba9b0793fb436_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4544
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2028

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\baoqebcu.exe

Filesize
11.9MB

MD5
d115c1a6ba921c850876a9eef7a72843

SHA1
3e2fafaaa636931f757462945c854ac0ae176f75

SHA256
775e7686e505a1d312270d38dbff43b8a84365372325db57ed92c159e07025a6

SHA512
487d5bce1c357713d907fb8f041c364138e311c228f35487e9aa877751fe9c2078169f35cae96f22771a96acd965aeedb935f4c86adc0c7269eb4b774f557e41

Download Submit
memory/2028-10-0x0000000000840000-0x0000000000855000-memory.dmp

Filesize
84KB

Download
memory/2028-13-0x0000000000840000-0x0000000000855000-memory.dmp

Filesize
84KB

Download
memory/2028-21-0x0000000000840000-0x0000000000855000-memory.dmp

Filesize
84KB

Download
memory/2028-20-0x0000000000840000-0x0000000000855000-memory.dmp

Filesize
84KB

Download
memory/2028-19-0x0000000000840000-0x0000000000855000-memory.dmp

Filesize
84KB

Download
memory/2524-15-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2524-1-0x0000000000540000-0x0000000000640000-memory.dmp

Filesize
1024KB

Download
memory/2524-16-0x00000000004A0000-0x00000000004B3000-memory.dmp

Filesize
76KB

Download
memory/2524-17-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2524-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2524-2-0x00000000004A0000-0x00000000004B3000-memory.dmp

Filesize
76KB

Download
memory/4544-18-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/4544-8-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/4544-9-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads