tofsee | cd2ed79a77da92a3dffddabf2825cb5bc3f373a0d58da2117b42163bb7e154bb

Analysis

max time kernel
144s
max time network
122s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
02/02/2025, 01:07

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General

Target

2025-02-02_a7c716f5d936c9276944313d870ed67e_mafia.exe
Size

14.0MB
MD5

a7c716f5d936c9276944313d870ed67e
SHA1

896af91856ec814cb4be69d5e81ad86d91626a62
SHA256

cd2ed79a77da92a3dffddabf2825cb5bc3f373a0d58da2117b42163bb7e154bb
SHA512

c1371b705a83346eb4d1e8dbac89e9b42748b4d4233f9a8b5b001ab24ab874d02ce5977d29515912eb82e293629c98654cbafb08ae411808375442a77330d593
SSDEEP

24576:+6WdLQkyQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQo:vWdLQk

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\tcacnlkg = "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
2932	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\tcacnlkg\ImagePath = "C:\\Windows\\SysWOW64\\tcacnlkg\\oaznyiqk.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2924	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2956	oaznyiqk.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2956 set thread context of 2924	2956	oaznyiqk.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
1964	sc.exe
2472	sc.exe
2800	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_a7c716f5d936c9276944313d870ed67e_mafia.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	oaznyiqk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1720 wrote to memory of 1420	1720	2025-02-02_a7c716f5d936c9276944313d870ed67e_mafia.exe	30
PID 1720 wrote to memory of 1420	1720	2025-02-02_a7c716f5d936c9276944313d870ed67e_mafia.exe	30
PID 1720 wrote to memory of 1420	1720	2025-02-02_a7c716f5d936c9276944313d870ed67e_mafia.exe	30
PID 1720 wrote to memory of 1420	1720	2025-02-02_a7c716f5d936c9276944313d870ed67e_mafia.exe	30
PID 1720 wrote to memory of 2628	1720	2025-02-02_a7c716f5d936c9276944313d870ed67e_mafia.exe	32
PID 1720 wrote to memory of 2628	1720	2025-02-02_a7c716f5d936c9276944313d870ed67e_mafia.exe	32
PID 1720 wrote to memory of 2628	1720	2025-02-02_a7c716f5d936c9276944313d870ed67e_mafia.exe	32
PID 1720 wrote to memory of 2628	1720	2025-02-02_a7c716f5d936c9276944313d870ed67e_mafia.exe	32
PID 1720 wrote to memory of 1964	1720	2025-02-02_a7c716f5d936c9276944313d870ed67e_mafia.exe	34
PID 1720 wrote to memory of 1964	1720	2025-02-02_a7c716f5d936c9276944313d870ed67e_mafia.exe	34
PID 1720 wrote to memory of 1964	1720	2025-02-02_a7c716f5d936c9276944313d870ed67e_mafia.exe	34
PID 1720 wrote to memory of 1964	1720	2025-02-02_a7c716f5d936c9276944313d870ed67e_mafia.exe	34
PID 1720 wrote to memory of 2472	1720	2025-02-02_a7c716f5d936c9276944313d870ed67e_mafia.exe	36
PID 1720 wrote to memory of 2472	1720	2025-02-02_a7c716f5d936c9276944313d870ed67e_mafia.exe	36
PID 1720 wrote to memory of 2472	1720	2025-02-02_a7c716f5d936c9276944313d870ed67e_mafia.exe	36
PID 1720 wrote to memory of 2472	1720	2025-02-02_a7c716f5d936c9276944313d870ed67e_mafia.exe	36
PID 1720 wrote to memory of 2800	1720	2025-02-02_a7c716f5d936c9276944313d870ed67e_mafia.exe	38
PID 1720 wrote to memory of 2800	1720	2025-02-02_a7c716f5d936c9276944313d870ed67e_mafia.exe	38
PID 1720 wrote to memory of 2800	1720	2025-02-02_a7c716f5d936c9276944313d870ed67e_mafia.exe	38
PID 1720 wrote to memory of 2800	1720	2025-02-02_a7c716f5d936c9276944313d870ed67e_mafia.exe	38
PID 1720 wrote to memory of 2932	1720	2025-02-02_a7c716f5d936c9276944313d870ed67e_mafia.exe	41
PID 1720 wrote to memory of 2932	1720	2025-02-02_a7c716f5d936c9276944313d870ed67e_mafia.exe	41
PID 1720 wrote to memory of 2932	1720	2025-02-02_a7c716f5d936c9276944313d870ed67e_mafia.exe	41
PID 1720 wrote to memory of 2932	1720	2025-02-02_a7c716f5d936c9276944313d870ed67e_mafia.exe	41
PID 2956 wrote to memory of 2924	2956	oaznyiqk.exe	43
PID 2956 wrote to memory of 2924	2956	oaznyiqk.exe	43
PID 2956 wrote to memory of 2924	2956	oaznyiqk.exe	43
PID 2956 wrote to memory of 2924	2956	oaznyiqk.exe	43
PID 2956 wrote to memory of 2924	2956	oaznyiqk.exe	43
PID 2956 wrote to memory of 2924	2956	oaznyiqk.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-02-02_a7c716f5d936c9276944313d870ed67e_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-02_a7c716f5d936c9276944313d870ed67e_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1720
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\tcacnlkg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1420
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\oaznyiqk.exe" C:\Windows\SysWOW64\tcacnlkg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2628
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create tcacnlkg binPath= "C:\Windows\SysWOW64\tcacnlkg\oaznyiqk.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-02_a7c716f5d936c9276944313d870ed67e_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1964
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description tcacnlkg "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2472
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start tcacnlkg
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2800
- 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:2932

C:\Windows\SysWOW64\tcacnlkg\oaznyiqk.exe
C:\Windows\SysWOW64\tcacnlkg\oaznyiqk.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-02_a7c716f5d936c9276944313d870ed67e_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2956
- 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:2924

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\oaznyiqk.exe

Filesize
13.4MB

MD5
44861c61f97e61471125ae6984b2c22d

SHA1
59bf6d02275addfd9233dd127666f073e254061e

SHA256
31070e16ad5f0655c3737d5c99aeb5b45834199bf05966b53a42c8438424acf4

SHA512
a1a96a4406d2322749c4d9207545f587f39dead6376d4e0a8af38ad5c7b80c6b65fee5301f37100b77fcd45e51c31a8b6286cbef4af82c0e0ef848c7b64054a7

Download Submit
memory/1720-7-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/1720-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1720-1-0x00000000005B0000-0x00000000006B0000-memory.dmp

Filesize
1024KB

Download
memory/1720-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1720-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1720-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2924-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2924-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2924-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2924-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2924-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2956-17-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads