tofsee | ef89d155d78c35b217e2979635e426216bffc0591e4354ccf760ddb9d5f48fed

Analysis

max time kernel
145s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
15-01-2025 04:24

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General

Target

2025-01-15_94e3b5b195f4cded12c2a710fb6ba2ac_mafia.exe
Size

13.1MB
MD5

94e3b5b195f4cded12c2a710fb6ba2ac
SHA1

26e8ce9f4c0dde0f214ad1081bfee4a9493ebad5
SHA256

ef89d155d78c35b217e2979635e426216bffc0591e4354ccf760ddb9d5f48fed
SHA512

b132d9ad01a2020ef7c800e8383c0fb0c0e1b3f12a7aa17184bee700778213ba8459b7faec2b5aef60603db8730fb810ad86ce32002c91f0c05079690d8072c2
SSDEEP

49152:qLFuiE888888888888888888888888888888888888888888888888888888888c:qLM

Score

10^/10

tofsee discovery evasion 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

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\tlnalznh = "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

pid	Process
2904	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\tlnalznh\ImagePath = "C:\\Windows\\SysWOW64\\tlnalznh\\ezdvlwyw.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2888	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2280	ezdvlwyw.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2280 set thread context of 2888	2280	ezdvlwyw.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
1476	sc.exe
2108	sc.exe
1836	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	ezdvlwyw.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-15_94e3b5b195f4cded12c2a710fb6ba2ac_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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1816 wrote to memory of 596	1816	2025-01-15_94e3b5b195f4cded12c2a710fb6ba2ac_mafia.exe	30
PID 1816 wrote to memory of 596	1816	2025-01-15_94e3b5b195f4cded12c2a710fb6ba2ac_mafia.exe	30
PID 1816 wrote to memory of 596	1816	2025-01-15_94e3b5b195f4cded12c2a710fb6ba2ac_mafia.exe	30
PID 1816 wrote to memory of 596	1816	2025-01-15_94e3b5b195f4cded12c2a710fb6ba2ac_mafia.exe	30
PID 1816 wrote to memory of 780	1816	2025-01-15_94e3b5b195f4cded12c2a710fb6ba2ac_mafia.exe	32
PID 1816 wrote to memory of 780	1816	2025-01-15_94e3b5b195f4cded12c2a710fb6ba2ac_mafia.exe	32
PID 1816 wrote to memory of 780	1816	2025-01-15_94e3b5b195f4cded12c2a710fb6ba2ac_mafia.exe	32
PID 1816 wrote to memory of 780	1816	2025-01-15_94e3b5b195f4cded12c2a710fb6ba2ac_mafia.exe	32
PID 1816 wrote to memory of 2108	1816	2025-01-15_94e3b5b195f4cded12c2a710fb6ba2ac_mafia.exe	34
PID 1816 wrote to memory of 2108	1816	2025-01-15_94e3b5b195f4cded12c2a710fb6ba2ac_mafia.exe	34
PID 1816 wrote to memory of 2108	1816	2025-01-15_94e3b5b195f4cded12c2a710fb6ba2ac_mafia.exe	34
PID 1816 wrote to memory of 2108	1816	2025-01-15_94e3b5b195f4cded12c2a710fb6ba2ac_mafia.exe	34
PID 1816 wrote to memory of 1836	1816	2025-01-15_94e3b5b195f4cded12c2a710fb6ba2ac_mafia.exe	36
PID 1816 wrote to memory of 1836	1816	2025-01-15_94e3b5b195f4cded12c2a710fb6ba2ac_mafia.exe	36
PID 1816 wrote to memory of 1836	1816	2025-01-15_94e3b5b195f4cded12c2a710fb6ba2ac_mafia.exe	36
PID 1816 wrote to memory of 1836	1816	2025-01-15_94e3b5b195f4cded12c2a710fb6ba2ac_mafia.exe	36
PID 1816 wrote to memory of 1476	1816	2025-01-15_94e3b5b195f4cded12c2a710fb6ba2ac_mafia.exe	38
PID 1816 wrote to memory of 1476	1816	2025-01-15_94e3b5b195f4cded12c2a710fb6ba2ac_mafia.exe	38
PID 1816 wrote to memory of 1476	1816	2025-01-15_94e3b5b195f4cded12c2a710fb6ba2ac_mafia.exe	38
PID 1816 wrote to memory of 1476	1816	2025-01-15_94e3b5b195f4cded12c2a710fb6ba2ac_mafia.exe	38
PID 2280 wrote to memory of 2888	2280	ezdvlwyw.exe	41
PID 2280 wrote to memory of 2888	2280	ezdvlwyw.exe	41
PID 2280 wrote to memory of 2888	2280	ezdvlwyw.exe	41
PID 2280 wrote to memory of 2888	2280	ezdvlwyw.exe	41
PID 2280 wrote to memory of 2888	2280	ezdvlwyw.exe	41
PID 2280 wrote to memory of 2888	2280	ezdvlwyw.exe	41
PID 1816 wrote to memory of 2904	1816	2025-01-15_94e3b5b195f4cded12c2a710fb6ba2ac_mafia.exe	42
PID 1816 wrote to memory of 2904	1816	2025-01-15_94e3b5b195f4cded12c2a710fb6ba2ac_mafia.exe	42
PID 1816 wrote to memory of 2904	1816	2025-01-15_94e3b5b195f4cded12c2a710fb6ba2ac_mafia.exe	42
PID 1816 wrote to memory of 2904	1816	2025-01-15_94e3b5b195f4cded12c2a710fb6ba2ac_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-01-15_94e3b5b195f4cded12c2a710fb6ba2ac_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-15_94e3b5b195f4cded12c2a710fb6ba2ac_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1816
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\tlnalznh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:596
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ezdvlwyw.exe" C:\Windows\SysWOW64\tlnalznh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:780
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create tlnalznh binPath= "C:\Windows\SysWOW64\tlnalznh\ezdvlwyw.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-15_94e3b5b195f4cded12c2a710fb6ba2ac_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2108
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description tlnalznh "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1836
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start tlnalznh
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1476
- 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:2904

C:\Windows\SysWOW64\tlnalznh\ezdvlwyw.exe
C:\Windows\SysWOW64\tlnalznh\ezdvlwyw.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-15_94e3b5b195f4cded12c2a710fb6ba2ac_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2280
- 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:2888

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\ezdvlwyw.exe

Filesize
10.7MB

MD5
be642d6a6c5c1da9f61eef0329b8ccb3

SHA1
b8f6a225454c1c01ecc943c227bc7b828c94803c

SHA256
6f6f78bc74b178865f5673f5ec9f8445679da94e565acb6c2855bd223ed4d3f2

SHA512
8a600d610719e802f677f60756a0a18210184f41bc6ec9eb11c77e359c968a3f89cf787c7118e7944cd43773a4435c76164afd190e5f877725c2c739c40e2b8a

Download Submit
memory/1816-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1816-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1816-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1816-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1816-1-0x0000000002E40000-0x0000000002F40000-memory.dmp

Filesize
1024KB

Download
memory/1816-14-0x0000000000400000-0x0000000002DBF000-memory.dmp

Filesize
41.7MB

Download
memory/2280-13-0x0000000000400000-0x0000000002DBF000-memory.dmp

Filesize
41.7MB

Download
memory/2888-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2888-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2888-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2888-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2888-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads