tofsee | 796dfc18f2ebaf9c3605f91401f0e3cbc63b4b865d33a233425ff0592bcfb716

General

Target

2025-01-24_aa08fef5c72940d72201dd8d68ddcb9c_mafia.exe
Size

10.5MB
MD5

aa08fef5c72940d72201dd8d68ddcb9c
SHA1

9dfa2bd191921c5dbbb640e3806679d8e21131ec
SHA256

796dfc18f2ebaf9c3605f91401f0e3cbc63b4b865d33a233425ff0592bcfb716
SHA512

4043feceac751afc963e2de81e6ba7f1eaf68512d809922adabdb9c09d008ca9434b406e476b2562c6c7cb84bc20c36497108862d0afac2d3bd086ff1ac3a16f
SSDEEP

6144:qLQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQ:LTYe+D2jFu+iZoUFhAz

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
4920	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\vfsinmzq\ImagePath = "C:\\Windows\\SysWOW64\\vfsinmzq\\uhtqjwbl.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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	2025-01-24_aa08fef5c72940d72201dd8d68ddcb9c_mafia.exe

Deletes itself 1 IoCs

pid	Process
544	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1420	uhtqjwbl.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1420 set thread context of 544	1420	uhtqjwbl.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
764	sc.exe
5020	sc.exe
4008	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
3480	2248	WerFault.exe	82
3252	1420	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	uhtqjwbl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-24_aa08fef5c72940d72201dd8d68ddcb9c_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 2248 wrote to memory of 3880	2248	2025-01-24_aa08fef5c72940d72201dd8d68ddcb9c_mafia.exe	83
PID 2248 wrote to memory of 3880	2248	2025-01-24_aa08fef5c72940d72201dd8d68ddcb9c_mafia.exe	83
PID 2248 wrote to memory of 3880	2248	2025-01-24_aa08fef5c72940d72201dd8d68ddcb9c_mafia.exe	83
PID 2248 wrote to memory of 2804	2248	2025-01-24_aa08fef5c72940d72201dd8d68ddcb9c_mafia.exe	85
PID 2248 wrote to memory of 2804	2248	2025-01-24_aa08fef5c72940d72201dd8d68ddcb9c_mafia.exe	85
PID 2248 wrote to memory of 2804	2248	2025-01-24_aa08fef5c72940d72201dd8d68ddcb9c_mafia.exe	85
PID 2248 wrote to memory of 764	2248	2025-01-24_aa08fef5c72940d72201dd8d68ddcb9c_mafia.exe	87
PID 2248 wrote to memory of 764	2248	2025-01-24_aa08fef5c72940d72201dd8d68ddcb9c_mafia.exe	87
PID 2248 wrote to memory of 764	2248	2025-01-24_aa08fef5c72940d72201dd8d68ddcb9c_mafia.exe	87
PID 2248 wrote to memory of 5020	2248	2025-01-24_aa08fef5c72940d72201dd8d68ddcb9c_mafia.exe	89
PID 2248 wrote to memory of 5020	2248	2025-01-24_aa08fef5c72940d72201dd8d68ddcb9c_mafia.exe	89
PID 2248 wrote to memory of 5020	2248	2025-01-24_aa08fef5c72940d72201dd8d68ddcb9c_mafia.exe	89
PID 2248 wrote to memory of 4008	2248	2025-01-24_aa08fef5c72940d72201dd8d68ddcb9c_mafia.exe	92
PID 2248 wrote to memory of 4008	2248	2025-01-24_aa08fef5c72940d72201dd8d68ddcb9c_mafia.exe	92
PID 2248 wrote to memory of 4008	2248	2025-01-24_aa08fef5c72940d72201dd8d68ddcb9c_mafia.exe	92
PID 2248 wrote to memory of 4920	2248	2025-01-24_aa08fef5c72940d72201dd8d68ddcb9c_mafia.exe	95
PID 2248 wrote to memory of 4920	2248	2025-01-24_aa08fef5c72940d72201dd8d68ddcb9c_mafia.exe	95
PID 2248 wrote to memory of 4920	2248	2025-01-24_aa08fef5c72940d72201dd8d68ddcb9c_mafia.exe	95
PID 1420 wrote to memory of 544	1420	uhtqjwbl.exe	101
PID 1420 wrote to memory of 544	1420	uhtqjwbl.exe	101
PID 1420 wrote to memory of 544	1420	uhtqjwbl.exe	101
PID 1420 wrote to memory of 544	1420	uhtqjwbl.exe	101
PID 1420 wrote to memory of 544	1420	uhtqjwbl.exe	101

C:\Users\Admin\AppData\Local\Temp\2025-01-24_aa08fef5c72940d72201dd8d68ddcb9c_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-24_aa08fef5c72940d72201dd8d68ddcb9c_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2248
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\vfsinmzq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3880
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\uhtqjwbl.exe" C:\Windows\SysWOW64\vfsinmzq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2804
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create vfsinmzq binPath= "C:\Windows\SysWOW64\vfsinmzq\uhtqjwbl.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-24_aa08fef5c72940d72201dd8d68ddcb9c_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:764
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description vfsinmzq "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5020
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start vfsinmzq
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4008
- 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:4920
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2248 -s 1036
  2⤵
  - Program crash
  PID:3480

C:\Windows\SysWOW64\vfsinmzq\uhtqjwbl.exe
C:\Windows\SysWOW64\vfsinmzq\uhtqjwbl.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-24_aa08fef5c72940d72201dd8d68ddcb9c_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1420
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:544
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1420 -s 508
  2⤵
  - Program crash
  PID:3252

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2248 -ip 2248
1⤵
PID:3788

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 1420 -ip 1420
1⤵
PID:4056

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\uhtqjwbl.exe

Filesize
14.1MB

MD5
d73dd2932a5a48e86be7a66ad8de5518

SHA1
ce376b6636d9b59f765f27b7dc83810341eb519e

SHA256
0d96146847aa3e5ad84760728d7e4fe88f961a902be4ca23e1bedc69abffaca9

SHA512
7cbaaf0e746f793fd3744c5734442d491181f2228e6cd8e0604ca0493c8aa3a4792fc29f9c8aab9c29e370fddc78039e419dd20ae8560a677b5ad1f469770537

Download Submit
memory/544-10-0x0000000000300000-0x0000000000315000-memory.dmp

Filesize
84KB

Download
memory/544-17-0x0000000000300000-0x0000000000315000-memory.dmp

Filesize
84KB

Download
memory/544-18-0x0000000000300000-0x0000000000315000-memory.dmp

Filesize
84KB

Download
memory/1420-8-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/1420-9-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/1420-16-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2248-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2248-2-0x0000000000620000-0x0000000000633000-memory.dmp

Filesize
76KB

Download
memory/2248-1-0x00000000004E0000-0x00000000005E0000-memory.dmp

Filesize
1024KB

Download
memory/2248-12-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2248-14-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2248-13-0x0000000000620000-0x0000000000633000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads