tofsee | ebbbf0ab4dcda04918036092a515255e57af81df6ffce76f38b22677171a5900

General

Target

2025-02-04_0abcb3517fa3d3f7125af8e3848ee61a_mafia.exe
Size

14.7MB
MD5

0abcb3517fa3d3f7125af8e3848ee61a
SHA1

80afec29733f7e81c06e8433d4a3f46d029bade0
SHA256

ebbbf0ab4dcda04918036092a515255e57af81df6ffce76f38b22677171a5900
SHA512

15e562cec99e44b1c2263c8d9fa7f9a48d1da092d8dbdb5bab89bad4481b9073271ca3a58951cb1d580275c8141ed7fb423177770df20ba71c6d3dba8abe31e9
SSDEEP

393216:GXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXs:L

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
4816	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\lnuqvqld\ImagePath = "C:\\Windows\\SysWOW64\\lnuqvqld\\wjvslydn.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	2025-02-04_0abcb3517fa3d3f7125af8e3848ee61a_mafia.exe

Deletes itself 1 IoCs

pid	Process
2708	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3292	wjvslydn.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3292 set thread context of 2708	3292	wjvslydn.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
1372	sc.exe
1508	sc.exe
4780	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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wjvslydn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-04_0abcb3517fa3d3f7125af8e3848ee61a_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	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3572 wrote to memory of 2904	3572	2025-02-04_0abcb3517fa3d3f7125af8e3848ee61a_mafia.exe	85
PID 3572 wrote to memory of 2904	3572	2025-02-04_0abcb3517fa3d3f7125af8e3848ee61a_mafia.exe	85
PID 3572 wrote to memory of 2904	3572	2025-02-04_0abcb3517fa3d3f7125af8e3848ee61a_mafia.exe	85
PID 3572 wrote to memory of 4996	3572	2025-02-04_0abcb3517fa3d3f7125af8e3848ee61a_mafia.exe	87
PID 3572 wrote to memory of 4996	3572	2025-02-04_0abcb3517fa3d3f7125af8e3848ee61a_mafia.exe	87
PID 3572 wrote to memory of 4996	3572	2025-02-04_0abcb3517fa3d3f7125af8e3848ee61a_mafia.exe	87
PID 3572 wrote to memory of 1372	3572	2025-02-04_0abcb3517fa3d3f7125af8e3848ee61a_mafia.exe	89
PID 3572 wrote to memory of 1372	3572	2025-02-04_0abcb3517fa3d3f7125af8e3848ee61a_mafia.exe	89
PID 3572 wrote to memory of 1372	3572	2025-02-04_0abcb3517fa3d3f7125af8e3848ee61a_mafia.exe	89
PID 3572 wrote to memory of 1508	3572	2025-02-04_0abcb3517fa3d3f7125af8e3848ee61a_mafia.exe	93
PID 3572 wrote to memory of 1508	3572	2025-02-04_0abcb3517fa3d3f7125af8e3848ee61a_mafia.exe	93
PID 3572 wrote to memory of 1508	3572	2025-02-04_0abcb3517fa3d3f7125af8e3848ee61a_mafia.exe	93
PID 3572 wrote to memory of 4780	3572	2025-02-04_0abcb3517fa3d3f7125af8e3848ee61a_mafia.exe	96
PID 3572 wrote to memory of 4780	3572	2025-02-04_0abcb3517fa3d3f7125af8e3848ee61a_mafia.exe	96
PID 3572 wrote to memory of 4780	3572	2025-02-04_0abcb3517fa3d3f7125af8e3848ee61a_mafia.exe	96
PID 3572 wrote to memory of 4816	3572	2025-02-04_0abcb3517fa3d3f7125af8e3848ee61a_mafia.exe	99
PID 3572 wrote to memory of 4816	3572	2025-02-04_0abcb3517fa3d3f7125af8e3848ee61a_mafia.exe	99
PID 3572 wrote to memory of 4816	3572	2025-02-04_0abcb3517fa3d3f7125af8e3848ee61a_mafia.exe	99
PID 3292 wrote to memory of 2708	3292	wjvslydn.exe	101
PID 3292 wrote to memory of 2708	3292	wjvslydn.exe	101
PID 3292 wrote to memory of 2708	3292	wjvslydn.exe	101
PID 3292 wrote to memory of 2708	3292	wjvslydn.exe	101
PID 3292 wrote to memory of 2708	3292	wjvslydn.exe	101

C:\Users\Admin\AppData\Local\Temp\2025-02-04_0abcb3517fa3d3f7125af8e3848ee61a_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-04_0abcb3517fa3d3f7125af8e3848ee61a_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3572
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\lnuqvqld\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2904
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\wjvslydn.exe" C:\Windows\SysWOW64\lnuqvqld\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4996
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create lnuqvqld binPath= "C:\Windows\SysWOW64\lnuqvqld\wjvslydn.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-04_0abcb3517fa3d3f7125af8e3848ee61a_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1372
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description lnuqvqld "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1508
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start lnuqvqld
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4780
- 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:4816

C:\Windows\SysWOW64\lnuqvqld\wjvslydn.exe
C:\Windows\SysWOW64\lnuqvqld\wjvslydn.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-04_0abcb3517fa3d3f7125af8e3848ee61a_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3292
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2708

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\wjvslydn.exe

Filesize
14.0MB

MD5
7fdf4e49de406486573d77caf26015aa

SHA1
3815141a6f4f712cf9686113e70d0e5f7914b5c0

SHA256
aea240cb2ec6094dc49e955457dbeab81a93cecfdae6a0d85edc8c04b4e30db3

SHA512
848c860c257cc82241ddbf6388f5d68d5a1320c79fb87867914c882bf2f0aaa6e63c36cd863583743b98e501f9e0a2f35311686653f3a37c79c6c4df02b6e6a9

Download Submit
memory/2708-13-0x0000000000F70000-0x0000000000F85000-memory.dmp

Filesize
84KB

Download
memory/2708-19-0x0000000000F70000-0x0000000000F85000-memory.dmp

Filesize
84KB

Download
memory/2708-21-0x0000000000F70000-0x0000000000F85000-memory.dmp

Filesize
84KB

Download
memory/2708-20-0x0000000000F70000-0x0000000000F85000-memory.dmp

Filesize
84KB

Download
memory/2708-17-0x0000000000F70000-0x0000000000F85000-memory.dmp

Filesize
84KB

Download
memory/3292-18-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/3292-11-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/3292-12-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/3572-1-0x0000000000740000-0x0000000000840000-memory.dmp

Filesize
1024KB

Download
memory/3572-7-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/3572-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3572-8-0x0000000000680000-0x0000000000693000-memory.dmp

Filesize
76KB

Download
memory/3572-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3572-2-0x0000000000680000-0x0000000000693000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads