tofsee | f9fcec7285c18f2bf701fc31f799ea3a28bbb84a51290d03ec010dc3559f2f10

General

Target

2025-01-19_0d5531100e7d9824de6e5aecffbe9341_mafia.exe
Size

11.0MB
MD5

0d5531100e7d9824de6e5aecffbe9341
SHA1

5ced127d1e9ae254d058712c395cf8bda7f27ab7
SHA256

f9fcec7285c18f2bf701fc31f799ea3a28bbb84a51290d03ec010dc3559f2f10
SHA512

f0cb42ec59009bba4ef7801b46609ed4d5e6772fe99823f4046f9a52bd27eaeb22f0866d4538ef4f7be755e8b54862c6f3e2702d21c1186dbb2af3a1a7a35b32
SSDEEP

6144:WLQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQF:HTYe+D2jFu+iZoUFhAz

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
3492	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\shitzgxk\ImagePath = "C:\\Windows\\SysWOW64\\shitzgxk\\tcwbtsnj.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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	2025-01-19_0d5531100e7d9824de6e5aecffbe9341_mafia.exe

Deletes itself 1 IoCs

pid	Process
2408	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3272	tcwbtsnj.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3272 set thread context of 2408	3272	tcwbtsnj.exe	103

Launches sc.exe 3 IoCs

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

pid	Process
4780	sc.exe
848	sc.exe
1300	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1056	780	WerFault.exe	82
4732	3272	WerFault.exe	97

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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tcwbtsnj.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-19_0d5531100e7d9824de6e5aecffbe9341_mafia.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 780 wrote to memory of 2004	780	2025-01-19_0d5531100e7d9824de6e5aecffbe9341_mafia.exe	83
PID 780 wrote to memory of 2004	780	2025-01-19_0d5531100e7d9824de6e5aecffbe9341_mafia.exe	83
PID 780 wrote to memory of 2004	780	2025-01-19_0d5531100e7d9824de6e5aecffbe9341_mafia.exe	83
PID 780 wrote to memory of 1724	780	2025-01-19_0d5531100e7d9824de6e5aecffbe9341_mafia.exe	85
PID 780 wrote to memory of 1724	780	2025-01-19_0d5531100e7d9824de6e5aecffbe9341_mafia.exe	85
PID 780 wrote to memory of 1724	780	2025-01-19_0d5531100e7d9824de6e5aecffbe9341_mafia.exe	85
PID 780 wrote to memory of 4780	780	2025-01-19_0d5531100e7d9824de6e5aecffbe9341_mafia.exe	87
PID 780 wrote to memory of 4780	780	2025-01-19_0d5531100e7d9824de6e5aecffbe9341_mafia.exe	87
PID 780 wrote to memory of 4780	780	2025-01-19_0d5531100e7d9824de6e5aecffbe9341_mafia.exe	87
PID 780 wrote to memory of 848	780	2025-01-19_0d5531100e7d9824de6e5aecffbe9341_mafia.exe	91
PID 780 wrote to memory of 848	780	2025-01-19_0d5531100e7d9824de6e5aecffbe9341_mafia.exe	91
PID 780 wrote to memory of 848	780	2025-01-19_0d5531100e7d9824de6e5aecffbe9341_mafia.exe	91
PID 780 wrote to memory of 1300	780	2025-01-19_0d5531100e7d9824de6e5aecffbe9341_mafia.exe	94
PID 780 wrote to memory of 1300	780	2025-01-19_0d5531100e7d9824de6e5aecffbe9341_mafia.exe	94
PID 780 wrote to memory of 1300	780	2025-01-19_0d5531100e7d9824de6e5aecffbe9341_mafia.exe	94
PID 780 wrote to memory of 3492	780	2025-01-19_0d5531100e7d9824de6e5aecffbe9341_mafia.exe	100
PID 780 wrote to memory of 3492	780	2025-01-19_0d5531100e7d9824de6e5aecffbe9341_mafia.exe	100
PID 780 wrote to memory of 3492	780	2025-01-19_0d5531100e7d9824de6e5aecffbe9341_mafia.exe	100
PID 3272 wrote to memory of 2408	3272	tcwbtsnj.exe	103
PID 3272 wrote to memory of 2408	3272	tcwbtsnj.exe	103
PID 3272 wrote to memory of 2408	3272	tcwbtsnj.exe	103
PID 3272 wrote to memory of 2408	3272	tcwbtsnj.exe	103
PID 3272 wrote to memory of 2408	3272	tcwbtsnj.exe	103

C:\Users\Admin\AppData\Local\Temp\2025-01-19_0d5531100e7d9824de6e5aecffbe9341_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-19_0d5531100e7d9824de6e5aecffbe9341_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:780
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\shitzgxk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2004
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tcwbtsnj.exe" C:\Windows\SysWOW64\shitzgxk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1724
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create shitzgxk binPath= "C:\Windows\SysWOW64\shitzgxk\tcwbtsnj.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-19_0d5531100e7d9824de6e5aecffbe9341_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4780
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description shitzgxk "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:848
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start shitzgxk
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1300
- 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:3492
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 780 -s 1036
  2⤵
  - Program crash
  PID:1056

C:\Windows\SysWOW64\shitzgxk\tcwbtsnj.exe
C:\Windows\SysWOW64\shitzgxk\tcwbtsnj.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-19_0d5531100e7d9824de6e5aecffbe9341_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3272
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2408
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3272 -s 560
  2⤵
  - Program crash
  PID:4732

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 204 -p 780 -ip 780
1⤵
PID:2320

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 3272 -ip 3272
1⤵
PID:1464

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\tcwbtsnj.exe

Filesize
14.3MB

MD5
bd9841e8023a0d7ce8d5869cd5901d5f

SHA1
5c3c5339c17c615b0c4a9b12bfdc00caee4369ec

SHA256
bddb473f40d1de92e72c2baca688938f30c556324d413584612a302f6ce2986e

SHA512
465adb4d75ea5d1b45a47fec1f04efe4b182cc46f5fd98702e2c9c1f8242fab899da751355f28da6cdef7a60579785df5ee94ba8b419634fbbb1eb980bd423cb

Download Submit
memory/780-2-0x00000000005A0000-0x00000000005B3000-memory.dmp

Filesize
76KB

Download
memory/780-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/780-1-0x00000000006E0000-0x00000000007E0000-memory.dmp

Filesize
1024KB

Download
memory/780-17-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/780-16-0x00000000005A0000-0x00000000005B3000-memory.dmp

Filesize
76KB

Download
memory/780-15-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2408-20-0x0000000000FC0000-0x0000000000FD5000-memory.dmp

Filesize
84KB

Download
memory/2408-22-0x0000000000FC0000-0x0000000000FD5000-memory.dmp

Filesize
84KB

Download
memory/2408-21-0x0000000000FC0000-0x0000000000FD5000-memory.dmp

Filesize
84KB

Download
memory/2408-11-0x0000000000FC0000-0x0000000000FD5000-memory.dmp

Filesize
84KB

Download
memory/2408-14-0x0000000000FC0000-0x0000000000FD5000-memory.dmp

Filesize
84KB

Download
memory/3272-8-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/3272-19-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/3272-10-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/3272-9-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads