tofsee | 5cd403ac44f190f433d9afeb7a6425b29a3051ccfee9af37fdc7d91b805fa07b

Analysis

max time kernel
148s
max time network
118s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
07-02-2025 02:03

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General

Target

2025-02-07_9f236fe0119fa63dfa8b80a1b0f7eee2_mafia.exe
Size

11.6MB
MD5

9f236fe0119fa63dfa8b80a1b0f7eee2
SHA1

909df5871804790489cdcbfc5108de5c9b053266
SHA256

5cd403ac44f190f433d9afeb7a6425b29a3051ccfee9af37fdc7d91b805fa07b
SHA512

267b76f54f9b656aa15aa0b17076cdb7dc5ac944e75e4c4978601f0c1195ef3862667c78eb8a6ed8675758efe7f643ab274ccc160e21b134696770aacb883805
SSDEEP

3072:BLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:EOMdRQr7OB0ypmMXnl8XEPM3noSWOC

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\kgxkxlje = "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
3048	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\kgxkxlje\ImagePath = "C:\\Windows\\SysWOW64\\kgxkxlje\\yatelthx.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2740	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2828	yatelthx.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2828 set thread context of 2740	2828	yatelthx.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2956	sc.exe
2952	sc.exe
2796	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 queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\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	yatelthx.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	cmd.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	2025-02-07_9f236fe0119fa63dfa8b80a1b0f7eee2_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1980 wrote to memory of 1948	1980	2025-02-07_9f236fe0119fa63dfa8b80a1b0f7eee2_mafia.exe	30
PID 1980 wrote to memory of 1948	1980	2025-02-07_9f236fe0119fa63dfa8b80a1b0f7eee2_mafia.exe	30
PID 1980 wrote to memory of 1948	1980	2025-02-07_9f236fe0119fa63dfa8b80a1b0f7eee2_mafia.exe	30
PID 1980 wrote to memory of 1948	1980	2025-02-07_9f236fe0119fa63dfa8b80a1b0f7eee2_mafia.exe	30
PID 1980 wrote to memory of 880	1980	2025-02-07_9f236fe0119fa63dfa8b80a1b0f7eee2_mafia.exe	32
PID 1980 wrote to memory of 880	1980	2025-02-07_9f236fe0119fa63dfa8b80a1b0f7eee2_mafia.exe	32
PID 1980 wrote to memory of 880	1980	2025-02-07_9f236fe0119fa63dfa8b80a1b0f7eee2_mafia.exe	32
PID 1980 wrote to memory of 880	1980	2025-02-07_9f236fe0119fa63dfa8b80a1b0f7eee2_mafia.exe	32
PID 1980 wrote to memory of 2796	1980	2025-02-07_9f236fe0119fa63dfa8b80a1b0f7eee2_mafia.exe	34
PID 1980 wrote to memory of 2796	1980	2025-02-07_9f236fe0119fa63dfa8b80a1b0f7eee2_mafia.exe	34
PID 1980 wrote to memory of 2796	1980	2025-02-07_9f236fe0119fa63dfa8b80a1b0f7eee2_mafia.exe	34
PID 1980 wrote to memory of 2796	1980	2025-02-07_9f236fe0119fa63dfa8b80a1b0f7eee2_mafia.exe	34
PID 1980 wrote to memory of 2956	1980	2025-02-07_9f236fe0119fa63dfa8b80a1b0f7eee2_mafia.exe	36
PID 1980 wrote to memory of 2956	1980	2025-02-07_9f236fe0119fa63dfa8b80a1b0f7eee2_mafia.exe	36
PID 1980 wrote to memory of 2956	1980	2025-02-07_9f236fe0119fa63dfa8b80a1b0f7eee2_mafia.exe	36
PID 1980 wrote to memory of 2956	1980	2025-02-07_9f236fe0119fa63dfa8b80a1b0f7eee2_mafia.exe	36
PID 1980 wrote to memory of 2952	1980	2025-02-07_9f236fe0119fa63dfa8b80a1b0f7eee2_mafia.exe	38
PID 1980 wrote to memory of 2952	1980	2025-02-07_9f236fe0119fa63dfa8b80a1b0f7eee2_mafia.exe	38
PID 1980 wrote to memory of 2952	1980	2025-02-07_9f236fe0119fa63dfa8b80a1b0f7eee2_mafia.exe	38
PID 1980 wrote to memory of 2952	1980	2025-02-07_9f236fe0119fa63dfa8b80a1b0f7eee2_mafia.exe	38
PID 2828 wrote to memory of 2740	2828	yatelthx.exe	41
PID 2828 wrote to memory of 2740	2828	yatelthx.exe	41
PID 2828 wrote to memory of 2740	2828	yatelthx.exe	41
PID 2828 wrote to memory of 2740	2828	yatelthx.exe	41
PID 2828 wrote to memory of 2740	2828	yatelthx.exe	41
PID 2828 wrote to memory of 2740	2828	yatelthx.exe	41
PID 1980 wrote to memory of 3048	1980	2025-02-07_9f236fe0119fa63dfa8b80a1b0f7eee2_mafia.exe	42
PID 1980 wrote to memory of 3048	1980	2025-02-07_9f236fe0119fa63dfa8b80a1b0f7eee2_mafia.exe	42
PID 1980 wrote to memory of 3048	1980	2025-02-07_9f236fe0119fa63dfa8b80a1b0f7eee2_mafia.exe	42
PID 1980 wrote to memory of 3048	1980	2025-02-07_9f236fe0119fa63dfa8b80a1b0f7eee2_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-02-07_9f236fe0119fa63dfa8b80a1b0f7eee2_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-07_9f236fe0119fa63dfa8b80a1b0f7eee2_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1980
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\kgxkxlje\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1948
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\yatelthx.exe" C:\Windows\SysWOW64\kgxkxlje\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:880
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create kgxkxlje binPath= "C:\Windows\SysWOW64\kgxkxlje\yatelthx.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-07_9f236fe0119fa63dfa8b80a1b0f7eee2_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2796
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description kgxkxlje "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2956
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start kgxkxlje
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2952
- 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:3048

C:\Windows\SysWOW64\kgxkxlje\yatelthx.exe
C:\Windows\SysWOW64\kgxkxlje\yatelthx.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-07_9f236fe0119fa63dfa8b80a1b0f7eee2_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2828
- 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:2740

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\yatelthx.exe

Filesize
13.9MB

MD5
0056596ca1e4284a06ef390bdf87f8fb

SHA1
74c88890ac4767c3a26ce52adbfd717aff88dfc6

SHA256
c594b13bf17ff6dfe2e77677d7b43a1e24060f50cef374e0896615d08ef85863

SHA512
75ed6b1c5dcd4fae83f87b903f5bccb070396d87482b67fb6c15e6f9a58c1563761279fc209cd0ed9427c81496d0d189f1fdf1e74405d6af5845b5b837d4e2ff

Download Submit
memory/1980-14-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1980-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1980-1-0x0000000000620000-0x0000000000720000-memory.dmp

Filesize
1024KB

Download
memory/1980-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1980-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1980-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2740-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2740-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2740-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2740-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2740-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2828-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads