tofsee | c51a7e68b13cd19ac5f8018136be3dd56b72fd5eb2f441753bb760c5494ac8ec

Analysis

max time kernel
144s
max time network
118s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
02/02/2025, 00:51

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General

Target

2025-02-02_1fd39ea0fb754241ec179ae2975708ff_mafia.exe
Size

11.4MB
MD5

1fd39ea0fb754241ec179ae2975708ff
SHA1

a869c4b2113ba693ce6318d45b4c9ccc975d322d
SHA256

c51a7e68b13cd19ac5f8018136be3dd56b72fd5eb2f441753bb760c5494ac8ec
SHA512

f223cfa23e0546b6757880ad92ff28dbdf161641b7853291f61067e27b098e3cdc02d4985054bed89afbba2a939414153f0a7b1b88dad86147442632106be212
SSDEEP

24576:26WdLQkyQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQI:3WdLQk

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\ryfrcdkn = "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
2628	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\ryfrcdkn\ImagePath = "C:\\Windows\\SysWOW64\\ryfrcdkn\\sedrcmuo.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2652	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2680	sedrcmuo.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2680 set thread context of 2652	2680	sedrcmuo.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2656	sc.exe
1604	sc.exe
2344	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	2025-02-02_1fd39ea0fb754241ec179ae2975708ff_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	sedrcmuo.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 2112 wrote to memory of 2832	2112	2025-02-02_1fd39ea0fb754241ec179ae2975708ff_mafia.exe	31
PID 2112 wrote to memory of 2832	2112	2025-02-02_1fd39ea0fb754241ec179ae2975708ff_mafia.exe	31
PID 2112 wrote to memory of 2832	2112	2025-02-02_1fd39ea0fb754241ec179ae2975708ff_mafia.exe	31
PID 2112 wrote to memory of 2832	2112	2025-02-02_1fd39ea0fb754241ec179ae2975708ff_mafia.exe	31
PID 2112 wrote to memory of 2740	2112	2025-02-02_1fd39ea0fb754241ec179ae2975708ff_mafia.exe	33
PID 2112 wrote to memory of 2740	2112	2025-02-02_1fd39ea0fb754241ec179ae2975708ff_mafia.exe	33
PID 2112 wrote to memory of 2740	2112	2025-02-02_1fd39ea0fb754241ec179ae2975708ff_mafia.exe	33
PID 2112 wrote to memory of 2740	2112	2025-02-02_1fd39ea0fb754241ec179ae2975708ff_mafia.exe	33
PID 2112 wrote to memory of 1604	2112	2025-02-02_1fd39ea0fb754241ec179ae2975708ff_mafia.exe	35
PID 2112 wrote to memory of 1604	2112	2025-02-02_1fd39ea0fb754241ec179ae2975708ff_mafia.exe	35
PID 2112 wrote to memory of 1604	2112	2025-02-02_1fd39ea0fb754241ec179ae2975708ff_mafia.exe	35
PID 2112 wrote to memory of 1604	2112	2025-02-02_1fd39ea0fb754241ec179ae2975708ff_mafia.exe	35
PID 2112 wrote to memory of 2344	2112	2025-02-02_1fd39ea0fb754241ec179ae2975708ff_mafia.exe	37
PID 2112 wrote to memory of 2344	2112	2025-02-02_1fd39ea0fb754241ec179ae2975708ff_mafia.exe	37
PID 2112 wrote to memory of 2344	2112	2025-02-02_1fd39ea0fb754241ec179ae2975708ff_mafia.exe	37
PID 2112 wrote to memory of 2344	2112	2025-02-02_1fd39ea0fb754241ec179ae2975708ff_mafia.exe	37
PID 2112 wrote to memory of 2656	2112	2025-02-02_1fd39ea0fb754241ec179ae2975708ff_mafia.exe	39
PID 2112 wrote to memory of 2656	2112	2025-02-02_1fd39ea0fb754241ec179ae2975708ff_mafia.exe	39
PID 2112 wrote to memory of 2656	2112	2025-02-02_1fd39ea0fb754241ec179ae2975708ff_mafia.exe	39
PID 2112 wrote to memory of 2656	2112	2025-02-02_1fd39ea0fb754241ec179ae2975708ff_mafia.exe	39
PID 2112 wrote to memory of 2628	2112	2025-02-02_1fd39ea0fb754241ec179ae2975708ff_mafia.exe	42
PID 2112 wrote to memory of 2628	2112	2025-02-02_1fd39ea0fb754241ec179ae2975708ff_mafia.exe	42
PID 2112 wrote to memory of 2628	2112	2025-02-02_1fd39ea0fb754241ec179ae2975708ff_mafia.exe	42
PID 2112 wrote to memory of 2628	2112	2025-02-02_1fd39ea0fb754241ec179ae2975708ff_mafia.exe	42
PID 2680 wrote to memory of 2652	2680	sedrcmuo.exe	43
PID 2680 wrote to memory of 2652	2680	sedrcmuo.exe	43
PID 2680 wrote to memory of 2652	2680	sedrcmuo.exe	43
PID 2680 wrote to memory of 2652	2680	sedrcmuo.exe	43
PID 2680 wrote to memory of 2652	2680	sedrcmuo.exe	43
PID 2680 wrote to memory of 2652	2680	sedrcmuo.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-02-02_1fd39ea0fb754241ec179ae2975708ff_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-02_1fd39ea0fb754241ec179ae2975708ff_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2112
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ryfrcdkn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2832
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\sedrcmuo.exe" C:\Windows\SysWOW64\ryfrcdkn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2740
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ryfrcdkn binPath= "C:\Windows\SysWOW64\ryfrcdkn\sedrcmuo.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-02_1fd39ea0fb754241ec179ae2975708ff_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1604
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ryfrcdkn "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2344
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ryfrcdkn
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2656
- 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:2628

C:\Windows\SysWOW64\ryfrcdkn\sedrcmuo.exe
C:\Windows\SysWOW64\ryfrcdkn\sedrcmuo.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-02_1fd39ea0fb754241ec179ae2975708ff_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2680
- 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:2652

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\sedrcmuo.exe

Filesize
14.5MB

MD5
45dc65d3b8f2d8179d1ce6576a624943

SHA1
5ea33094a417f9612db0839a8e18277f21de138f

SHA256
6f29cb6d5331e3d72f37ec8676e13273bb9f1d0479513f0f0b585a5a187b10ef

SHA512
079ebb346a90edc760c18bd289b711d55f7d8d345e29fa79728bfb18c91f1a546d13ed4043f4583c01c999a018321b62ca28a5bb83dc7e744f469fd5cff5c11e

Download Submit
memory/2112-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2112-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2112-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2112-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2112-1-0x00000000004E0000-0x00000000005E0000-memory.dmp

Filesize
1024KB

Download
memory/2112-8-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2652-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2652-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2652-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2652-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2652-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2680-17-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads