tofsee | d3acc474578634a4a5fcb49255e9a97bb5d9391b2f4019426fb7e0c9586b3271

Analysis

max time kernel
144s
max time network
119s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
03-02-2025 18:43

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General

Target

2025-02-03_0ea20400e10d827ce339c7b33c6f1e7f_mafia.exe
Size

11.4MB
MD5

0ea20400e10d827ce339c7b33c6f1e7f
SHA1

6dda40aede4b6e2e0144a835af27bf22be037409
SHA256

d3acc474578634a4a5fcb49255e9a97bb5d9391b2f4019426fb7e0c9586b3271
SHA512

e5e2aaade75838d3bb96a31327a022a4765ed5ba80960a94658a06c6c0404cbcae2e5d95a7305de55a999a494e2f4d1da17c848ec740d8eae571fd7388e5b37c
SSDEEP

6144:TLQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQg:oTYe+D2jFu+iZoUFhAz

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\tycbopll = "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
2892	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\tycbopll\ImagePath = "C:\\Windows\\SysWOW64\\tycbopll\\zxghqmbx.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2708	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2808	zxghqmbx.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2808 set thread context of 2708	2808	zxghqmbx.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
1300	sc.exe
2692	sc.exe
2728	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	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-03_0ea20400e10d827ce339c7b33c6f1e7f_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	zxghqmbx.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	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2100 wrote to memory of 3020	2100	2025-02-03_0ea20400e10d827ce339c7b33c6f1e7f_mafia.exe	30
PID 2100 wrote to memory of 3020	2100	2025-02-03_0ea20400e10d827ce339c7b33c6f1e7f_mafia.exe	30
PID 2100 wrote to memory of 3020	2100	2025-02-03_0ea20400e10d827ce339c7b33c6f1e7f_mafia.exe	30
PID 2100 wrote to memory of 3020	2100	2025-02-03_0ea20400e10d827ce339c7b33c6f1e7f_mafia.exe	30
PID 2100 wrote to memory of 2340	2100	2025-02-03_0ea20400e10d827ce339c7b33c6f1e7f_mafia.exe	32
PID 2100 wrote to memory of 2340	2100	2025-02-03_0ea20400e10d827ce339c7b33c6f1e7f_mafia.exe	32
PID 2100 wrote to memory of 2340	2100	2025-02-03_0ea20400e10d827ce339c7b33c6f1e7f_mafia.exe	32
PID 2100 wrote to memory of 2340	2100	2025-02-03_0ea20400e10d827ce339c7b33c6f1e7f_mafia.exe	32
PID 2100 wrote to memory of 1300	2100	2025-02-03_0ea20400e10d827ce339c7b33c6f1e7f_mafia.exe	34
PID 2100 wrote to memory of 1300	2100	2025-02-03_0ea20400e10d827ce339c7b33c6f1e7f_mafia.exe	34
PID 2100 wrote to memory of 1300	2100	2025-02-03_0ea20400e10d827ce339c7b33c6f1e7f_mafia.exe	34
PID 2100 wrote to memory of 1300	2100	2025-02-03_0ea20400e10d827ce339c7b33c6f1e7f_mafia.exe	34
PID 2100 wrote to memory of 2692	2100	2025-02-03_0ea20400e10d827ce339c7b33c6f1e7f_mafia.exe	36
PID 2100 wrote to memory of 2692	2100	2025-02-03_0ea20400e10d827ce339c7b33c6f1e7f_mafia.exe	36
PID 2100 wrote to memory of 2692	2100	2025-02-03_0ea20400e10d827ce339c7b33c6f1e7f_mafia.exe	36
PID 2100 wrote to memory of 2692	2100	2025-02-03_0ea20400e10d827ce339c7b33c6f1e7f_mafia.exe	36
PID 2100 wrote to memory of 2728	2100	2025-02-03_0ea20400e10d827ce339c7b33c6f1e7f_mafia.exe	38
PID 2100 wrote to memory of 2728	2100	2025-02-03_0ea20400e10d827ce339c7b33c6f1e7f_mafia.exe	38
PID 2100 wrote to memory of 2728	2100	2025-02-03_0ea20400e10d827ce339c7b33c6f1e7f_mafia.exe	38
PID 2100 wrote to memory of 2728	2100	2025-02-03_0ea20400e10d827ce339c7b33c6f1e7f_mafia.exe	38
PID 2808 wrote to memory of 2708	2808	zxghqmbx.exe	41
PID 2808 wrote to memory of 2708	2808	zxghqmbx.exe	41
PID 2808 wrote to memory of 2708	2808	zxghqmbx.exe	41
PID 2808 wrote to memory of 2708	2808	zxghqmbx.exe	41
PID 2808 wrote to memory of 2708	2808	zxghqmbx.exe	41
PID 2808 wrote to memory of 2708	2808	zxghqmbx.exe	41
PID 2100 wrote to memory of 2892	2100	2025-02-03_0ea20400e10d827ce339c7b33c6f1e7f_mafia.exe	42
PID 2100 wrote to memory of 2892	2100	2025-02-03_0ea20400e10d827ce339c7b33c6f1e7f_mafia.exe	42
PID 2100 wrote to memory of 2892	2100	2025-02-03_0ea20400e10d827ce339c7b33c6f1e7f_mafia.exe	42
PID 2100 wrote to memory of 2892	2100	2025-02-03_0ea20400e10d827ce339c7b33c6f1e7f_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-02-03_0ea20400e10d827ce339c7b33c6f1e7f_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-03_0ea20400e10d827ce339c7b33c6f1e7f_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2100
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\tycbopll\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3020
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\zxghqmbx.exe" C:\Windows\SysWOW64\tycbopll\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2340
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create tycbopll binPath= "C:\Windows\SysWOW64\tycbopll\zxghqmbx.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-03_0ea20400e10d827ce339c7b33c6f1e7f_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1300
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description tycbopll "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2692
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start tycbopll
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2728
- 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:2892

C:\Windows\SysWOW64\tycbopll\zxghqmbx.exe
C:\Windows\SysWOW64\tycbopll\zxghqmbx.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-03_0ea20400e10d827ce339c7b33c6f1e7f_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2808
- 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:2708

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\zxghqmbx.exe

Filesize
10.3MB

MD5
f54eb4aff10d67094d8fd8f2a651ed1d

SHA1
d09ef042a26a781b3c2f3a8e3ea41683e49bdae6

SHA256
210d98de3ef0b9fa050ad69e1397e0da8e060deecae4940ff884d67848a37721

SHA512
ea5c991932d41b9fa4e0137c4236ae559fbadee21c876d97a15655aea3e98c120690e4ce0e6f4f0aa0870f629af137a789da57d591ee48682bc77c9671fbaf2a

Download Submit
memory/2100-14-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2100-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2100-1-0x0000000000290000-0x0000000000390000-memory.dmp

Filesize
1024KB

Download
memory/2100-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2100-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2100-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2708-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2708-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2708-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2708-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2708-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2808-13-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads