tofsee | 6f5cadfef60d9b5e9ad27f6135b19280b0a4ffd8d07bf2f0a91314755659066b

General

Target

2024-09-21_857c95c3ee1e86954bfbfc7e4d871caa_mafia.exe
Size

11.3MB
MD5

857c95c3ee1e86954bfbfc7e4d871caa
SHA1

c8fcaceb46e37f229eb099064af340e1ebdda13a
SHA256

6f5cadfef60d9b5e9ad27f6135b19280b0a4ffd8d07bf2f0a91314755659066b
SHA512

ff5c7fcbfa3c4f0ad38a3dcadfd58441b2afc678a0459a876ec7a087af639bad9a02f5fd50dd07bf5b506b18ccf215017c23fd6643614ac906f2cd049793ac77
SSDEEP

12288:1Vbj7zJB99tzBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBh:1JzXd

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

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\dgtkjpbw = "0"	svchost.exe

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

Processes:

netsh.exe

pid process

2820 netsh.exe

pid	process
2820	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\dgtkjpbw\ImagePath = "C:\\Windows\\SysWOW64\\dgtkjpbw\\acxdwjt.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

3064 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

acxdwjt.exe

pid process

2732 acxdwjt.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

acxdwjt.exe

description pid process target process

PID 2732 set thread context of 3064 2732 acxdwjt.exe svchost.exe
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.

Processes:

sc.exesc.exesc.exe

pid process

2964 sc.exe
2872 sc.exe
2228 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
3064	svchost.exe

pid	process
2732	acxdwjt.exe

description	pid	process	target process
PID 2732 set thread context of 3064	2732	acxdwjt.exe	svchost.exe

pid	process
2964	sc.exe
2872	sc.exe
2228	sc.exe

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

Processes:

netsh.exe

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

Processes:

svchost.exe2024-09-21_857c95c3ee1e86954bfbfc7e4d871caa_mafia.exeacxdwjt.exesc.exesc.exesc.exenetsh.execmd.execmd.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-21_857c95c3ee1e86954bfbfc7e4d871caa_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	acxdwjt.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	sc.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	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

2024-09-21_857c95c3ee1e86954bfbfc7e4d871caa_mafia.exeacxdwjt.exe

description	pid	process	target process
PID 2652 wrote to memory of 2788	2652	2024-09-21_857c95c3ee1e86954bfbfc7e4d871caa_mafia.exe	cmd.exe
PID 2652 wrote to memory of 2788	2652	2024-09-21_857c95c3ee1e86954bfbfc7e4d871caa_mafia.exe	cmd.exe
PID 2652 wrote to memory of 2788	2652	2024-09-21_857c95c3ee1e86954bfbfc7e4d871caa_mafia.exe	cmd.exe
PID 2652 wrote to memory of 2788	2652	2024-09-21_857c95c3ee1e86954bfbfc7e4d871caa_mafia.exe	cmd.exe
PID 2652 wrote to memory of 2136	2652	2024-09-21_857c95c3ee1e86954bfbfc7e4d871caa_mafia.exe	cmd.exe
PID 2652 wrote to memory of 2136	2652	2024-09-21_857c95c3ee1e86954bfbfc7e4d871caa_mafia.exe	cmd.exe
PID 2652 wrote to memory of 2136	2652	2024-09-21_857c95c3ee1e86954bfbfc7e4d871caa_mafia.exe	cmd.exe
PID 2652 wrote to memory of 2136	2652	2024-09-21_857c95c3ee1e86954bfbfc7e4d871caa_mafia.exe	cmd.exe
PID 2652 wrote to memory of 2964	2652	2024-09-21_857c95c3ee1e86954bfbfc7e4d871caa_mafia.exe	sc.exe
PID 2652 wrote to memory of 2964	2652	2024-09-21_857c95c3ee1e86954bfbfc7e4d871caa_mafia.exe	sc.exe
PID 2652 wrote to memory of 2964	2652	2024-09-21_857c95c3ee1e86954bfbfc7e4d871caa_mafia.exe	sc.exe
PID 2652 wrote to memory of 2964	2652	2024-09-21_857c95c3ee1e86954bfbfc7e4d871caa_mafia.exe	sc.exe
PID 2652 wrote to memory of 2872	2652	2024-09-21_857c95c3ee1e86954bfbfc7e4d871caa_mafia.exe	sc.exe
PID 2652 wrote to memory of 2872	2652	2024-09-21_857c95c3ee1e86954bfbfc7e4d871caa_mafia.exe	sc.exe
PID 2652 wrote to memory of 2872	2652	2024-09-21_857c95c3ee1e86954bfbfc7e4d871caa_mafia.exe	sc.exe
PID 2652 wrote to memory of 2872	2652	2024-09-21_857c95c3ee1e86954bfbfc7e4d871caa_mafia.exe	sc.exe
PID 2652 wrote to memory of 2228	2652	2024-09-21_857c95c3ee1e86954bfbfc7e4d871caa_mafia.exe	sc.exe
PID 2652 wrote to memory of 2228	2652	2024-09-21_857c95c3ee1e86954bfbfc7e4d871caa_mafia.exe	sc.exe
PID 2652 wrote to memory of 2228	2652	2024-09-21_857c95c3ee1e86954bfbfc7e4d871caa_mafia.exe	sc.exe
PID 2652 wrote to memory of 2228	2652	2024-09-21_857c95c3ee1e86954bfbfc7e4d871caa_mafia.exe	sc.exe
PID 2652 wrote to memory of 2820	2652	2024-09-21_857c95c3ee1e86954bfbfc7e4d871caa_mafia.exe	netsh.exe
PID 2652 wrote to memory of 2820	2652	2024-09-21_857c95c3ee1e86954bfbfc7e4d871caa_mafia.exe	netsh.exe
PID 2652 wrote to memory of 2820	2652	2024-09-21_857c95c3ee1e86954bfbfc7e4d871caa_mafia.exe	netsh.exe
PID 2652 wrote to memory of 2820	2652	2024-09-21_857c95c3ee1e86954bfbfc7e4d871caa_mafia.exe	netsh.exe
PID 2732 wrote to memory of 3064	2732	acxdwjt.exe	svchost.exe
PID 2732 wrote to memory of 3064	2732	acxdwjt.exe	svchost.exe
PID 2732 wrote to memory of 3064	2732	acxdwjt.exe	svchost.exe
PID 2732 wrote to memory of 3064	2732	acxdwjt.exe	svchost.exe
PID 2732 wrote to memory of 3064	2732	acxdwjt.exe	svchost.exe
PID 2732 wrote to memory of 3064	2732	acxdwjt.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-21_857c95c3ee1e86954bfbfc7e4d871caa_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-21_857c95c3ee1e86954bfbfc7e4d871caa_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2652
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\dgtkjpbw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2788
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\acxdwjt.exe" C:\Windows\SysWOW64\dgtkjpbw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2136
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create dgtkjpbw binPath= "C:\Windows\SysWOW64\dgtkjpbw\acxdwjt.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-09-21_857c95c3ee1e86954bfbfc7e4d871caa_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2964
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description dgtkjpbw "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2872
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start dgtkjpbw
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2228
- 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:2820

C:\Windows\SysWOW64\dgtkjpbw\acxdwjt.exe
C:\Windows\SysWOW64\dgtkjpbw\acxdwjt.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-09-21_857c95c3ee1e86954bfbfc7e4d871caa_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2732
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3064

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

2

T1562

Disable or Modify System Firewall

1

T1562.004

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\acxdwjt.exe

Filesize
11.5MB

MD5
e111148f3e98cbe4d08941b5f65146a1

SHA1
f2ff89cbe150de91f66d06d8c4a6ca8be8526b99

SHA256
72dd991a0e85ac2e54237ef90f0988022325b494201d254d248c1aaedca45093

SHA512
c41ba3771fb3bfcac8f949509026e2197ee1da4bd56a3f64218eb39b439b2091d3dea02939e7f65d1819e13f7acf861a2dd9ee2dc9ab61b90c30c1d3e4573843

Download Submit
memory/2652-7-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2652-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2652-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2652-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2652-8-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2652-1-0x00000000005A0000-0x00000000006A0000-memory.dmp

Filesize
1024KB

Download
memory/2732-17-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/3064-14-0x00000000000E0000-0x00000000000F5000-memory.dmp

Filesize
84KB

Download
memory/3064-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3064-11-0x00000000000E0000-0x00000000000F5000-memory.dmp

Filesize
84KB

Download
memory/3064-16-0x00000000000E0000-0x00000000000F5000-memory.dmp

Filesize
84KB

Download
memory/3064-18-0x00000000000E0000-0x00000000000F5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads