tofsee | ef731a26e3d02e193589c3cfd4964d3d37d8c043a7f1d72e35ccfa676d34755f

Analysis

max time kernel
144s
max time network
120s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
01-02-2025 20:05

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General

Target

2025-02-01_3a111ee619f6a58cdc11ab560fff69d1_mafia.exe
Size

11.7MB
MD5

3a111ee619f6a58cdc11ab560fff69d1
SHA1

0c6e0e60066de6af7270bd69573a0d83a87e2213
SHA256

ef731a26e3d02e193589c3cfd4964d3d37d8c043a7f1d72e35ccfa676d34755f
SHA512

a4069662db0e481f809e64f5f2b92b424910f5e4e17901a65b89e3da3aaf660998f5bbd0368b2fd4d6c4cb283b56f2a7f3597fe4aa17ce82c39ec5f644f29df5
SSDEEP

6144:LLQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQt:ATYe+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\okinamrd = "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
2800	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\okinamrd\ImagePath = "C:\\Windows\\SysWOW64\\okinamrd\\avzrhsus.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2980	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2740	avzrhsus.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2740 set thread context of 2980	2740	avzrhsus.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2316	sc.exe
3060	sc.exe
2260	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	2025-02-01_3a111ee619f6a58cdc11ab560fff69d1_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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	avzrhsus.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2448 wrote to memory of 2468	2448	2025-02-01_3a111ee619f6a58cdc11ab560fff69d1_mafia.exe	30
PID 2448 wrote to memory of 2468	2448	2025-02-01_3a111ee619f6a58cdc11ab560fff69d1_mafia.exe	30
PID 2448 wrote to memory of 2468	2448	2025-02-01_3a111ee619f6a58cdc11ab560fff69d1_mafia.exe	30
PID 2448 wrote to memory of 2468	2448	2025-02-01_3a111ee619f6a58cdc11ab560fff69d1_mafia.exe	30
PID 2448 wrote to memory of 2228	2448	2025-02-01_3a111ee619f6a58cdc11ab560fff69d1_mafia.exe	32
PID 2448 wrote to memory of 2228	2448	2025-02-01_3a111ee619f6a58cdc11ab560fff69d1_mafia.exe	32
PID 2448 wrote to memory of 2228	2448	2025-02-01_3a111ee619f6a58cdc11ab560fff69d1_mafia.exe	32
PID 2448 wrote to memory of 2228	2448	2025-02-01_3a111ee619f6a58cdc11ab560fff69d1_mafia.exe	32
PID 2448 wrote to memory of 2316	2448	2025-02-01_3a111ee619f6a58cdc11ab560fff69d1_mafia.exe	34
PID 2448 wrote to memory of 2316	2448	2025-02-01_3a111ee619f6a58cdc11ab560fff69d1_mafia.exe	34
PID 2448 wrote to memory of 2316	2448	2025-02-01_3a111ee619f6a58cdc11ab560fff69d1_mafia.exe	34
PID 2448 wrote to memory of 2316	2448	2025-02-01_3a111ee619f6a58cdc11ab560fff69d1_mafia.exe	34
PID 2448 wrote to memory of 3060	2448	2025-02-01_3a111ee619f6a58cdc11ab560fff69d1_mafia.exe	36
PID 2448 wrote to memory of 3060	2448	2025-02-01_3a111ee619f6a58cdc11ab560fff69d1_mafia.exe	36
PID 2448 wrote to memory of 3060	2448	2025-02-01_3a111ee619f6a58cdc11ab560fff69d1_mafia.exe	36
PID 2448 wrote to memory of 3060	2448	2025-02-01_3a111ee619f6a58cdc11ab560fff69d1_mafia.exe	36
PID 2448 wrote to memory of 2260	2448	2025-02-01_3a111ee619f6a58cdc11ab560fff69d1_mafia.exe	38
PID 2448 wrote to memory of 2260	2448	2025-02-01_3a111ee619f6a58cdc11ab560fff69d1_mafia.exe	38
PID 2448 wrote to memory of 2260	2448	2025-02-01_3a111ee619f6a58cdc11ab560fff69d1_mafia.exe	38
PID 2448 wrote to memory of 2260	2448	2025-02-01_3a111ee619f6a58cdc11ab560fff69d1_mafia.exe	38
PID 2448 wrote to memory of 2800	2448	2025-02-01_3a111ee619f6a58cdc11ab560fff69d1_mafia.exe	41
PID 2448 wrote to memory of 2800	2448	2025-02-01_3a111ee619f6a58cdc11ab560fff69d1_mafia.exe	41
PID 2448 wrote to memory of 2800	2448	2025-02-01_3a111ee619f6a58cdc11ab560fff69d1_mafia.exe	41
PID 2448 wrote to memory of 2800	2448	2025-02-01_3a111ee619f6a58cdc11ab560fff69d1_mafia.exe	41
PID 2740 wrote to memory of 2980	2740	avzrhsus.exe	43
PID 2740 wrote to memory of 2980	2740	avzrhsus.exe	43
PID 2740 wrote to memory of 2980	2740	avzrhsus.exe	43
PID 2740 wrote to memory of 2980	2740	avzrhsus.exe	43
PID 2740 wrote to memory of 2980	2740	avzrhsus.exe	43
PID 2740 wrote to memory of 2980	2740	avzrhsus.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-02-01_3a111ee619f6a58cdc11ab560fff69d1_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-01_3a111ee619f6a58cdc11ab560fff69d1_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2448
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\okinamrd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2468
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\avzrhsus.exe" C:\Windows\SysWOW64\okinamrd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2228
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create okinamrd binPath= "C:\Windows\SysWOW64\okinamrd\avzrhsus.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-01_3a111ee619f6a58cdc11ab560fff69d1_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2316
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description okinamrd "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3060
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start okinamrd
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2260
- 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:2800

C:\Windows\SysWOW64\okinamrd\avzrhsus.exe
C:\Windows\SysWOW64\okinamrd\avzrhsus.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-01_3a111ee619f6a58cdc11ab560fff69d1_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:2980

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\avzrhsus.exe

Filesize
12.2MB

MD5
61032bffb37b7da7532bce8a1818870e

SHA1
997e00525dbdef36e1a3985932c68d34fd5e1a90

SHA256
914942ee30494c4e6f03669caf52de76e579339b53b88df55a442a4b0c40c7d3

SHA512
bbf88d35d18460283821dbd4741cec3cfd823230af3f3df1d8cfc07e32bfecbcdbc68f33bf5fd066a60910ed9279f4edacc5775a924fe1a42e56fd4c99d09788

Download Submit
memory/2448-7-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2448-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2448-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2448-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2448-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2448-1-0x00000000005C0000-0x00000000006C0000-memory.dmp

Filesize
1024KB

Download
memory/2740-17-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2980-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2980-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2980-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2980-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2980-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads