tofsee | ad89b7d0db217381ad21b852aae21c1e372d7a6ea67e11fec0bc06c0c7b2a740

Analysis

max time kernel
144s
max time network
117s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
03/02/2025, 03:03

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General

Target

2025-02-03_448d54d3a4c42da0a21d52c59b3a7eda_mafia.exe
Size

14.5MB
MD5

448d54d3a4c42da0a21d52c59b3a7eda
SHA1

e43013fc397934ae161e73554ff09a1463c9698b
SHA256

ad89b7d0db217381ad21b852aae21c1e372d7a6ea67e11fec0bc06c0c7b2a740
SHA512

3b8ffc79edabbb9924a2c72441f754f6537a1f76399421d45963d120835f018649082c5f7b578efdafee5642b8352903b0adf7871acfe8b04303cafd9f67cab1
SSDEEP

393216:NXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXH:

Score

10^/10

tofsee defense_evasion discovery execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

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

Windows security bypass 2 TTPs 1 IoCs

defense_evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\dzaypdjb = "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

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2700	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\dzaypdjb\ImagePath = "C:\\Windows\\SysWOW64\\dzaypdjb\\clfkcbws.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2780	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2116	clfkcbws.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2116 set thread context of 2780	2116	clfkcbws.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2376	sc.exe
2280	sc.exe
2172	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	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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-03_448d54d3a4c42da0a21d52c59b3a7eda_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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	clfkcbws.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2004 wrote to memory of 3040	2004	2025-02-03_448d54d3a4c42da0a21d52c59b3a7eda_mafia.exe	30
PID 2004 wrote to memory of 3040	2004	2025-02-03_448d54d3a4c42da0a21d52c59b3a7eda_mafia.exe	30
PID 2004 wrote to memory of 3040	2004	2025-02-03_448d54d3a4c42da0a21d52c59b3a7eda_mafia.exe	30
PID 2004 wrote to memory of 3040	2004	2025-02-03_448d54d3a4c42da0a21d52c59b3a7eda_mafia.exe	30
PID 2004 wrote to memory of 2504	2004	2025-02-03_448d54d3a4c42da0a21d52c59b3a7eda_mafia.exe	32
PID 2004 wrote to memory of 2504	2004	2025-02-03_448d54d3a4c42da0a21d52c59b3a7eda_mafia.exe	32
PID 2004 wrote to memory of 2504	2004	2025-02-03_448d54d3a4c42da0a21d52c59b3a7eda_mafia.exe	32
PID 2004 wrote to memory of 2504	2004	2025-02-03_448d54d3a4c42da0a21d52c59b3a7eda_mafia.exe	32
PID 2004 wrote to memory of 2376	2004	2025-02-03_448d54d3a4c42da0a21d52c59b3a7eda_mafia.exe	34
PID 2004 wrote to memory of 2376	2004	2025-02-03_448d54d3a4c42da0a21d52c59b3a7eda_mafia.exe	34
PID 2004 wrote to memory of 2376	2004	2025-02-03_448d54d3a4c42da0a21d52c59b3a7eda_mafia.exe	34
PID 2004 wrote to memory of 2376	2004	2025-02-03_448d54d3a4c42da0a21d52c59b3a7eda_mafia.exe	34
PID 2004 wrote to memory of 2280	2004	2025-02-03_448d54d3a4c42da0a21d52c59b3a7eda_mafia.exe	36
PID 2004 wrote to memory of 2280	2004	2025-02-03_448d54d3a4c42da0a21d52c59b3a7eda_mafia.exe	36
PID 2004 wrote to memory of 2280	2004	2025-02-03_448d54d3a4c42da0a21d52c59b3a7eda_mafia.exe	36
PID 2004 wrote to memory of 2280	2004	2025-02-03_448d54d3a4c42da0a21d52c59b3a7eda_mafia.exe	36
PID 2004 wrote to memory of 2172	2004	2025-02-03_448d54d3a4c42da0a21d52c59b3a7eda_mafia.exe	38
PID 2004 wrote to memory of 2172	2004	2025-02-03_448d54d3a4c42da0a21d52c59b3a7eda_mafia.exe	38
PID 2004 wrote to memory of 2172	2004	2025-02-03_448d54d3a4c42da0a21d52c59b3a7eda_mafia.exe	38
PID 2004 wrote to memory of 2172	2004	2025-02-03_448d54d3a4c42da0a21d52c59b3a7eda_mafia.exe	38
PID 2116 wrote to memory of 2780	2116	clfkcbws.exe	41
PID 2116 wrote to memory of 2780	2116	clfkcbws.exe	41
PID 2116 wrote to memory of 2780	2116	clfkcbws.exe	41
PID 2116 wrote to memory of 2780	2116	clfkcbws.exe	41
PID 2116 wrote to memory of 2780	2116	clfkcbws.exe	41
PID 2116 wrote to memory of 2780	2116	clfkcbws.exe	41
PID 2004 wrote to memory of 2700	2004	2025-02-03_448d54d3a4c42da0a21d52c59b3a7eda_mafia.exe	42
PID 2004 wrote to memory of 2700	2004	2025-02-03_448d54d3a4c42da0a21d52c59b3a7eda_mafia.exe	42
PID 2004 wrote to memory of 2700	2004	2025-02-03_448d54d3a4c42da0a21d52c59b3a7eda_mafia.exe	42
PID 2004 wrote to memory of 2700	2004	2025-02-03_448d54d3a4c42da0a21d52c59b3a7eda_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-02-03_448d54d3a4c42da0a21d52c59b3a7eda_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-03_448d54d3a4c42da0a21d52c59b3a7eda_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2004
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\dzaypdjb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3040
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\clfkcbws.exe" C:\Windows\SysWOW64\dzaypdjb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2504
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create dzaypdjb binPath= "C:\Windows\SysWOW64\dzaypdjb\clfkcbws.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-03_448d54d3a4c42da0a21d52c59b3a7eda_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2376
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description dzaypdjb "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2280
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start dzaypdjb
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2172
- 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:2700

C:\Windows\SysWOW64\dzaypdjb\clfkcbws.exe
C:\Windows\SysWOW64\dzaypdjb\clfkcbws.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-03_448d54d3a4c42da0a21d52c59b3a7eda_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2116
- 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:2780

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

T1569

Service Execution

T1569.002

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
10.1MB

MD5
aeabb615062c4a1652f3422dd5c6e3cb

SHA1
c24d2d2963623b1da5eaab710ee28d62badc58a5

SHA256
82314d4ad985bb48b640fbcb7650a08baabf53a8d03d3133606b8922cfe64101

SHA512
bf32c09e7357f03ad6fdeab77cf05a33109a63ea2102fd42648b26d37131f47efd324a954f9456c5c562e8a9430df07457afe6ee0b8f0377883f39d9bf78ea48

Download Submit
memory/2004-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2004-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2004-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2004-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2004-1-0x0000000000630000-0x0000000000730000-memory.dmp

Filesize
1024KB

Download
memory/2004-14-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2116-13-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2780-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2780-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2780-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2780-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2780-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads