tofsee | 09185d589ed81a08a4e4d3eb544ccc7a26902a0c3dde0b8269203a27342bc38e

Analysis

max time kernel
145s
max time network
121s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
21-01-2025 21:52

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General

Target

2025-01-21_44975788c2e1c5ac4372fdead1c27278_mafia.exe
Size

12.3MB
MD5

44975788c2e1c5ac4372fdead1c27278
SHA1

0043958faabef750448c2068a6d974d9526321ef
SHA256

09185d589ed81a08a4e4d3eb544ccc7a26902a0c3dde0b8269203a27342bc38e
SHA512

95ab499ed3c2fc8bebcaa56c68204b539bada35620fce489901e63c351cadfccc47b34acdf54017a6eb6260df1e8bac488cd2c4edcbf5cd6c07f8f86e5bc39d3
SSDEEP

24576:L6WdLQkyQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQ:GWdLQk

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\tufsira = "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
3012	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\tufsira\ImagePath = "C:\\Windows\\SysWOW64\\tufsira\\kjxznkld.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2856	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2504	kjxznkld.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2504 set thread context of 2856	2504	kjxznkld.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2212	sc.exe
2900	sc.exe
2404	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	kjxznkld.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	2025-01-21_44975788c2e1c5ac4372fdead1c27278_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

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1976 wrote to memory of 2464	1976	2025-01-21_44975788c2e1c5ac4372fdead1c27278_mafia.exe	30
PID 1976 wrote to memory of 2464	1976	2025-01-21_44975788c2e1c5ac4372fdead1c27278_mafia.exe	30
PID 1976 wrote to memory of 2464	1976	2025-01-21_44975788c2e1c5ac4372fdead1c27278_mafia.exe	30
PID 1976 wrote to memory of 2464	1976	2025-01-21_44975788c2e1c5ac4372fdead1c27278_mafia.exe	30
PID 1976 wrote to memory of 1932	1976	2025-01-21_44975788c2e1c5ac4372fdead1c27278_mafia.exe	32
PID 1976 wrote to memory of 1932	1976	2025-01-21_44975788c2e1c5ac4372fdead1c27278_mafia.exe	32
PID 1976 wrote to memory of 1932	1976	2025-01-21_44975788c2e1c5ac4372fdead1c27278_mafia.exe	32
PID 1976 wrote to memory of 1932	1976	2025-01-21_44975788c2e1c5ac4372fdead1c27278_mafia.exe	32
PID 1976 wrote to memory of 2212	1976	2025-01-21_44975788c2e1c5ac4372fdead1c27278_mafia.exe	34
PID 1976 wrote to memory of 2212	1976	2025-01-21_44975788c2e1c5ac4372fdead1c27278_mafia.exe	34
PID 1976 wrote to memory of 2212	1976	2025-01-21_44975788c2e1c5ac4372fdead1c27278_mafia.exe	34
PID 1976 wrote to memory of 2212	1976	2025-01-21_44975788c2e1c5ac4372fdead1c27278_mafia.exe	34
PID 1976 wrote to memory of 2900	1976	2025-01-21_44975788c2e1c5ac4372fdead1c27278_mafia.exe	36
PID 1976 wrote to memory of 2900	1976	2025-01-21_44975788c2e1c5ac4372fdead1c27278_mafia.exe	36
PID 1976 wrote to memory of 2900	1976	2025-01-21_44975788c2e1c5ac4372fdead1c27278_mafia.exe	36
PID 1976 wrote to memory of 2900	1976	2025-01-21_44975788c2e1c5ac4372fdead1c27278_mafia.exe	36
PID 1976 wrote to memory of 2404	1976	2025-01-21_44975788c2e1c5ac4372fdead1c27278_mafia.exe	38
PID 1976 wrote to memory of 2404	1976	2025-01-21_44975788c2e1c5ac4372fdead1c27278_mafia.exe	38
PID 1976 wrote to memory of 2404	1976	2025-01-21_44975788c2e1c5ac4372fdead1c27278_mafia.exe	38
PID 1976 wrote to memory of 2404	1976	2025-01-21_44975788c2e1c5ac4372fdead1c27278_mafia.exe	38
PID 2504 wrote to memory of 2856	2504	kjxznkld.exe	41
PID 2504 wrote to memory of 2856	2504	kjxznkld.exe	41
PID 2504 wrote to memory of 2856	2504	kjxznkld.exe	41
PID 2504 wrote to memory of 2856	2504	kjxznkld.exe	41
PID 2504 wrote to memory of 2856	2504	kjxznkld.exe	41
PID 2504 wrote to memory of 2856	2504	kjxznkld.exe	41
PID 1976 wrote to memory of 3012	1976	2025-01-21_44975788c2e1c5ac4372fdead1c27278_mafia.exe	42
PID 1976 wrote to memory of 3012	1976	2025-01-21_44975788c2e1c5ac4372fdead1c27278_mafia.exe	42
PID 1976 wrote to memory of 3012	1976	2025-01-21_44975788c2e1c5ac4372fdead1c27278_mafia.exe	42
PID 1976 wrote to memory of 3012	1976	2025-01-21_44975788c2e1c5ac4372fdead1c27278_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-01-21_44975788c2e1c5ac4372fdead1c27278_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-21_44975788c2e1c5ac4372fdead1c27278_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1976
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\tufsira\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2464
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kjxznkld.exe" C:\Windows\SysWOW64\tufsira\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1932
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create tufsira binPath= "C:\Windows\SysWOW64\tufsira\kjxznkld.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-21_44975788c2e1c5ac4372fdead1c27278_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2212
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description tufsira "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2900
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start tufsira
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2404
- 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:3012

C:\Windows\SysWOW64\tufsira\kjxznkld.exe
C:\Windows\SysWOW64\tufsira\kjxznkld.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-21_44975788c2e1c5ac4372fdead1c27278_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2504
- 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:2856

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\kjxznkld.exe

Filesize
12.1MB

MD5
bc353254980aeee80dcc4e4c458b2337

SHA1
b074a991a83fe08432655836e8b4d5f9d9fc0645

SHA256
965466ae224e3e0f82ed9e090485dd4c74651b0201f18fc910da829f9fff7a21

SHA512
8b0f82df5e3a7c2a16ea97ee54c4c8e1937924603d7fc8f9a5712b4be248d0fe9b3398ec24a44481be48999041225e27684365120bce29355c8091ab34ff0999

Download Submit
memory/1976-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1976-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1976-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1976-14-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/1976-1-0x00000000005D0000-0x00000000006D0000-memory.dmp

Filesize
1024KB

Download
memory/1976-17-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1976-16-0x00000000005D0000-0x00000000006D0000-memory.dmp

Filesize
1024KB

Download
memory/2504-12-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2856-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2856-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2856-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2856-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2856-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads