tofsee | d3acc474578634a4a5fcb49255e9a97bb5d9391b2f4019426fb7e0c9586b3271

Analysis

max time kernel
144s
max time network
121s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
03-02-2025 18:51

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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\uehdhqiq = "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
2888	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\uehdhqiq\ImagePath = "C:\\Windows\\SysWOW64\\uehdhqiq\\arzxhcjx.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2920	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2736	arzxhcjx.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2736 set thread context of 2920	2736	arzxhcjx.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2348	sc.exe
2808	sc.exe
2840	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

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	2025-02-03_0ea20400e10d827ce339c7b33c6f1e7f_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	arzxhcjx.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1712 wrote to memory of 2548	1712	2025-02-03_0ea20400e10d827ce339c7b33c6f1e7f_mafia.exe	30
PID 1712 wrote to memory of 2548	1712	2025-02-03_0ea20400e10d827ce339c7b33c6f1e7f_mafia.exe	30
PID 1712 wrote to memory of 2548	1712	2025-02-03_0ea20400e10d827ce339c7b33c6f1e7f_mafia.exe	30
PID 1712 wrote to memory of 2548	1712	2025-02-03_0ea20400e10d827ce339c7b33c6f1e7f_mafia.exe	30
PID 1712 wrote to memory of 2800	1712	2025-02-03_0ea20400e10d827ce339c7b33c6f1e7f_mafia.exe	32
PID 1712 wrote to memory of 2800	1712	2025-02-03_0ea20400e10d827ce339c7b33c6f1e7f_mafia.exe	32
PID 1712 wrote to memory of 2800	1712	2025-02-03_0ea20400e10d827ce339c7b33c6f1e7f_mafia.exe	32
PID 1712 wrote to memory of 2800	1712	2025-02-03_0ea20400e10d827ce339c7b33c6f1e7f_mafia.exe	32
PID 1712 wrote to memory of 2348	1712	2025-02-03_0ea20400e10d827ce339c7b33c6f1e7f_mafia.exe	34
PID 1712 wrote to memory of 2348	1712	2025-02-03_0ea20400e10d827ce339c7b33c6f1e7f_mafia.exe	34
PID 1712 wrote to memory of 2348	1712	2025-02-03_0ea20400e10d827ce339c7b33c6f1e7f_mafia.exe	34
PID 1712 wrote to memory of 2348	1712	2025-02-03_0ea20400e10d827ce339c7b33c6f1e7f_mafia.exe	34
PID 1712 wrote to memory of 2808	1712	2025-02-03_0ea20400e10d827ce339c7b33c6f1e7f_mafia.exe	36
PID 1712 wrote to memory of 2808	1712	2025-02-03_0ea20400e10d827ce339c7b33c6f1e7f_mafia.exe	36
PID 1712 wrote to memory of 2808	1712	2025-02-03_0ea20400e10d827ce339c7b33c6f1e7f_mafia.exe	36
PID 1712 wrote to memory of 2808	1712	2025-02-03_0ea20400e10d827ce339c7b33c6f1e7f_mafia.exe	36
PID 1712 wrote to memory of 2840	1712	2025-02-03_0ea20400e10d827ce339c7b33c6f1e7f_mafia.exe	38
PID 1712 wrote to memory of 2840	1712	2025-02-03_0ea20400e10d827ce339c7b33c6f1e7f_mafia.exe	38
PID 1712 wrote to memory of 2840	1712	2025-02-03_0ea20400e10d827ce339c7b33c6f1e7f_mafia.exe	38
PID 1712 wrote to memory of 2840	1712	2025-02-03_0ea20400e10d827ce339c7b33c6f1e7f_mafia.exe	38
PID 1712 wrote to memory of 2888	1712	2025-02-03_0ea20400e10d827ce339c7b33c6f1e7f_mafia.exe	41
PID 1712 wrote to memory of 2888	1712	2025-02-03_0ea20400e10d827ce339c7b33c6f1e7f_mafia.exe	41
PID 1712 wrote to memory of 2888	1712	2025-02-03_0ea20400e10d827ce339c7b33c6f1e7f_mafia.exe	41
PID 1712 wrote to memory of 2888	1712	2025-02-03_0ea20400e10d827ce339c7b33c6f1e7f_mafia.exe	41
PID 2736 wrote to memory of 2920	2736	arzxhcjx.exe	43
PID 2736 wrote to memory of 2920	2736	arzxhcjx.exe	43
PID 2736 wrote to memory of 2920	2736	arzxhcjx.exe	43
PID 2736 wrote to memory of 2920	2736	arzxhcjx.exe	43
PID 2736 wrote to memory of 2920	2736	arzxhcjx.exe	43
PID 2736 wrote to memory of 2920	2736	arzxhcjx.exe	43

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:1712
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\uehdhqiq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2548
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\arzxhcjx.exe" C:\Windows\SysWOW64\uehdhqiq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2800
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create uehdhqiq binPath= "C:\Windows\SysWOW64\uehdhqiq\arzxhcjx.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:2348
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description uehdhqiq "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2808
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start uehdhqiq
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2840
- 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:2888

C:\Windows\SysWOW64\uehdhqiq\arzxhcjx.exe
C:\Windows\SysWOW64\uehdhqiq\arzxhcjx.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:2736
- 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:2920

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\arzxhcjx.exe

Filesize
13.1MB

MD5
65c56bece39702f014e60ebf56482249

SHA1
9c6f1fb2fca71dda4c5098938f6b3ffd8f45043b

SHA256
88be634eddd475cf7babc400629f1121806f35bb868bc57f847e981fe200eb2e

SHA512
87416cd19dbff197d10aee82f8d35b64366ddd8512248f05500a834604d64c39537a311291a561c9ffeaf77e365f21f34e88bd65bffa7a6d8604742c62da0533

Download Submit
memory/1712-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1712-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1712-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1712-7-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/1712-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1712-1-0x00000000005F0000-0x00000000006F0000-memory.dmp

Filesize
1024KB

Download
memory/2736-17-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2920-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2920-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2920-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2920-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2920-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads