tofsee | c9e8b3cc85721662eb296b73db92b2029a1ddf4c3e0ab32e876ab50eaee72f33

General

Target

2025-02-06_f3eda9233b9866583638eab9a80cd886_mafia.exe
Size

13.7MB
MD5

f3eda9233b9866583638eab9a80cd886
SHA1

be8b2ac167a03f073d2a2a26e849c5fcda57e4a7
SHA256

c9e8b3cc85721662eb296b73db92b2029a1ddf4c3e0ab32e876ab50eaee72f33
SHA512

bfe3efcdf0e58624cf5f531e6ebeb1ce500c26e52b1b54c5bab13ce7baf7cde736e43b5baa81c0b3d540b9932f347935f704f221b2c336ade12da515f54f80b4
SSDEEP

6144:7LQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQL:QTYe+D2jFu+iZoUFhAzU

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
4360	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\mtzetsol\ImagePath = "C:\\Windows\\SysWOW64\\mtzetsol\\vdswjhqq.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-1-5-21-4003209913-3868522715-854928974-1000\Control Panel\International\Geo\Nation	2025-02-06_f3eda9233b9866583638eab9a80cd886_mafia.exe

Deletes itself 1 IoCs

pid	Process
2420	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4316	vdswjhqq.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4316 set thread context of 2420	4316	vdswjhqq.exe	106

Launches sc.exe 3 IoCs

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

pid	Process
2088	sc.exe
2184	sc.exe
5024	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
1000	4880	WerFault.exe	83
2108	4316	WerFault.exe	101

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	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	vdswjhqq.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-06_f3eda9233b9866583638eab9a80cd886_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4880 wrote to memory of 312	4880	2025-02-06_f3eda9233b9866583638eab9a80cd886_mafia.exe	87
PID 4880 wrote to memory of 312	4880	2025-02-06_f3eda9233b9866583638eab9a80cd886_mafia.exe	87
PID 4880 wrote to memory of 312	4880	2025-02-06_f3eda9233b9866583638eab9a80cd886_mafia.exe	87
PID 4880 wrote to memory of 4032	4880	2025-02-06_f3eda9233b9866583638eab9a80cd886_mafia.exe	89
PID 4880 wrote to memory of 4032	4880	2025-02-06_f3eda9233b9866583638eab9a80cd886_mafia.exe	89
PID 4880 wrote to memory of 4032	4880	2025-02-06_f3eda9233b9866583638eab9a80cd886_mafia.exe	89
PID 4880 wrote to memory of 2088	4880	2025-02-06_f3eda9233b9866583638eab9a80cd886_mafia.exe	91
PID 4880 wrote to memory of 2088	4880	2025-02-06_f3eda9233b9866583638eab9a80cd886_mafia.exe	91
PID 4880 wrote to memory of 2088	4880	2025-02-06_f3eda9233b9866583638eab9a80cd886_mafia.exe	91
PID 4880 wrote to memory of 2184	4880	2025-02-06_f3eda9233b9866583638eab9a80cd886_mafia.exe	94
PID 4880 wrote to memory of 2184	4880	2025-02-06_f3eda9233b9866583638eab9a80cd886_mafia.exe	94
PID 4880 wrote to memory of 2184	4880	2025-02-06_f3eda9233b9866583638eab9a80cd886_mafia.exe	94
PID 4880 wrote to memory of 5024	4880	2025-02-06_f3eda9233b9866583638eab9a80cd886_mafia.exe	99
PID 4880 wrote to memory of 5024	4880	2025-02-06_f3eda9233b9866583638eab9a80cd886_mafia.exe	99
PID 4880 wrote to memory of 5024	4880	2025-02-06_f3eda9233b9866583638eab9a80cd886_mafia.exe	99
PID 4880 wrote to memory of 4360	4880	2025-02-06_f3eda9233b9866583638eab9a80cd886_mafia.exe	102
PID 4880 wrote to memory of 4360	4880	2025-02-06_f3eda9233b9866583638eab9a80cd886_mafia.exe	102
PID 4880 wrote to memory of 4360	4880	2025-02-06_f3eda9233b9866583638eab9a80cd886_mafia.exe	102
PID 4316 wrote to memory of 2420	4316	vdswjhqq.exe	106
PID 4316 wrote to memory of 2420	4316	vdswjhqq.exe	106
PID 4316 wrote to memory of 2420	4316	vdswjhqq.exe	106
PID 4316 wrote to memory of 2420	4316	vdswjhqq.exe	106
PID 4316 wrote to memory of 2420	4316	vdswjhqq.exe	106

C:\Users\Admin\AppData\Local\Temp\2025-02-06_f3eda9233b9866583638eab9a80cd886_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-06_f3eda9233b9866583638eab9a80cd886_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4880
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\mtzetsol\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:312
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\vdswjhqq.exe" C:\Windows\SysWOW64\mtzetsol\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4032
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create mtzetsol binPath= "C:\Windows\SysWOW64\mtzetsol\vdswjhqq.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-06_f3eda9233b9866583638eab9a80cd886_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2088
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description mtzetsol "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2184
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start mtzetsol
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5024
- 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:4360
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4880 -s 1100
  2⤵
  - Program crash
  PID:1000

C:\Windows\SysWOW64\mtzetsol\vdswjhqq.exe
C:\Windows\SysWOW64\mtzetsol\vdswjhqq.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-06_f3eda9233b9866583638eab9a80cd886_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4316
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2420
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4316 -s 560
  2⤵
  - Program crash
  PID:2108

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4880 -ip 4880
1⤵
PID:392

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 4316 -ip 4316
1⤵
PID:932

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\vdswjhqq.exe

Filesize
14.8MB

MD5
4f2cb1000ef80d2875a049719aea6d0e

SHA1
6a1e877a2d122dea5be38829f6d1d99c3daf7264

SHA256
62fad157cfb56ae9dbd03680c744e66e6db50cac1eed43d773c477543249b939

SHA512
1665db6a8445fdabada67bff7a886aa2cf8e0e5894674205c6c635ea62e483fa955ff00d675a25bf19c98568b9b6950d527ff3b7a5b8880582bdedb74d4eb859

Download Submit
memory/2420-11-0x0000000001000000-0x0000000001015000-memory.dmp

Filesize
84KB

Download
memory/2420-19-0x0000000001000000-0x0000000001015000-memory.dmp

Filesize
84KB

Download
memory/2420-18-0x0000000001000000-0x0000000001015000-memory.dmp

Filesize
84KB

Download
memory/4316-9-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/4316-10-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/4316-8-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/4316-17-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/4880-2-0x00000000006F0000-0x0000000000703000-memory.dmp

Filesize
76KB

Download
memory/4880-14-0x00000000006F0000-0x0000000000703000-memory.dmp

Filesize
76KB

Download
memory/4880-15-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4880-13-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/4880-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4880-1-0x00000000007B0000-0x00000000008B0000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads