tofsee | 93e799ff91df350fa4a65d1ada0f03f90f6b2a5a80415a545e76c756ff6f6add

Analysis

max time kernel
144s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
15/01/2025, 19:02

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General

Target

2025-01-15_c96251b811fd4393eb727c2d509bda7c_mafia.exe
Size

10.7MB
MD5

c96251b811fd4393eb727c2d509bda7c
SHA1

6171664e5c463141358617088db85e6e187cc688
SHA256

93e799ff91df350fa4a65d1ada0f03f90f6b2a5a80415a545e76c756ff6f6add
SHA512

0ddba7b60c498a59c3f594f85f8dd594b8006d9cd50923da38bfa038483c09482859ca39a1db62cd097373ba4f799dbefcb7554cec5d7fcac3ce8d225214bb43
SSDEEP

196608:yyXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXn:XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX3

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\wpjdwipk = "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
2684	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\wpjdwipk\ImagePath = "C:\\Windows\\SysWOW64\\wpjdwipk\\joytnzwy.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
1592	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2740	joytnzwy.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2740 set thread context of 1592	2740	joytnzwy.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2724	sc.exe
1440	sc.exe
1804	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	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	joytnzwy.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-15_c96251b811fd4393eb727c2d509bda7c_mafia.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2260 wrote to memory of 2720	2260	2025-01-15_c96251b811fd4393eb727c2d509bda7c_mafia.exe	30
PID 2260 wrote to memory of 2720	2260	2025-01-15_c96251b811fd4393eb727c2d509bda7c_mafia.exe	30
PID 2260 wrote to memory of 2720	2260	2025-01-15_c96251b811fd4393eb727c2d509bda7c_mafia.exe	30
PID 2260 wrote to memory of 2720	2260	2025-01-15_c96251b811fd4393eb727c2d509bda7c_mafia.exe	30
PID 2260 wrote to memory of 2840	2260	2025-01-15_c96251b811fd4393eb727c2d509bda7c_mafia.exe	32
PID 2260 wrote to memory of 2840	2260	2025-01-15_c96251b811fd4393eb727c2d509bda7c_mafia.exe	32
PID 2260 wrote to memory of 2840	2260	2025-01-15_c96251b811fd4393eb727c2d509bda7c_mafia.exe	32
PID 2260 wrote to memory of 2840	2260	2025-01-15_c96251b811fd4393eb727c2d509bda7c_mafia.exe	32
PID 2260 wrote to memory of 2724	2260	2025-01-15_c96251b811fd4393eb727c2d509bda7c_mafia.exe	34
PID 2260 wrote to memory of 2724	2260	2025-01-15_c96251b811fd4393eb727c2d509bda7c_mafia.exe	34
PID 2260 wrote to memory of 2724	2260	2025-01-15_c96251b811fd4393eb727c2d509bda7c_mafia.exe	34
PID 2260 wrote to memory of 2724	2260	2025-01-15_c96251b811fd4393eb727c2d509bda7c_mafia.exe	34
PID 2260 wrote to memory of 1440	2260	2025-01-15_c96251b811fd4393eb727c2d509bda7c_mafia.exe	36
PID 2260 wrote to memory of 1440	2260	2025-01-15_c96251b811fd4393eb727c2d509bda7c_mafia.exe	36
PID 2260 wrote to memory of 1440	2260	2025-01-15_c96251b811fd4393eb727c2d509bda7c_mafia.exe	36
PID 2260 wrote to memory of 1440	2260	2025-01-15_c96251b811fd4393eb727c2d509bda7c_mafia.exe	36
PID 2260 wrote to memory of 1804	2260	2025-01-15_c96251b811fd4393eb727c2d509bda7c_mafia.exe	38
PID 2260 wrote to memory of 1804	2260	2025-01-15_c96251b811fd4393eb727c2d509bda7c_mafia.exe	38
PID 2260 wrote to memory of 1804	2260	2025-01-15_c96251b811fd4393eb727c2d509bda7c_mafia.exe	38
PID 2260 wrote to memory of 1804	2260	2025-01-15_c96251b811fd4393eb727c2d509bda7c_mafia.exe	38
PID 2260 wrote to memory of 2684	2260	2025-01-15_c96251b811fd4393eb727c2d509bda7c_mafia.exe	41
PID 2260 wrote to memory of 2684	2260	2025-01-15_c96251b811fd4393eb727c2d509bda7c_mafia.exe	41
PID 2260 wrote to memory of 2684	2260	2025-01-15_c96251b811fd4393eb727c2d509bda7c_mafia.exe	41
PID 2260 wrote to memory of 2684	2260	2025-01-15_c96251b811fd4393eb727c2d509bda7c_mafia.exe	41
PID 2740 wrote to memory of 1592	2740	joytnzwy.exe	43
PID 2740 wrote to memory of 1592	2740	joytnzwy.exe	43
PID 2740 wrote to memory of 1592	2740	joytnzwy.exe	43
PID 2740 wrote to memory of 1592	2740	joytnzwy.exe	43
PID 2740 wrote to memory of 1592	2740	joytnzwy.exe	43
PID 2740 wrote to memory of 1592	2740	joytnzwy.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-01-15_c96251b811fd4393eb727c2d509bda7c_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-15_c96251b811fd4393eb727c2d509bda7c_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2260
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wpjdwipk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2720
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\joytnzwy.exe" C:\Windows\SysWOW64\wpjdwipk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2840
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create wpjdwipk binPath= "C:\Windows\SysWOW64\wpjdwipk\joytnzwy.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-15_c96251b811fd4393eb727c2d509bda7c_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2724
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description wpjdwipk "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1440
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start wpjdwipk
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1804
- 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:2684

C:\Windows\SysWOW64\wpjdwipk\joytnzwy.exe
C:\Windows\SysWOW64\wpjdwipk\joytnzwy.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-15_c96251b811fd4393eb727c2d509bda7c_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2740
- 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:1592

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\joytnzwy.exe

Filesize
11.4MB

MD5
53e8ab9710bbeb9227dbc41e21ec2cce

SHA1
c8634914146f939df680a21c84cc36f4558a1eb4

SHA256
995f34d7a40a707ae6a1653e728bc68a0a0057e1623d21f62605ba5876bc33d3

SHA512
cbe6a48678b665eea8159ce1067fa916ef9458219b19528876aefa2d72e4992969e1fa6da3cbab0a408fac92fd6a778ad2b803992b40e72798cb3b7654cb9239

Download Submit
memory/1592-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1592-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1592-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1592-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1592-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2260-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2260-1-0x0000000000620000-0x0000000000720000-memory.dmp

Filesize
1024KB

Download
memory/2260-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2260-8-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2260-7-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2260-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2740-17-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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