tofsee | 8e4a37d0837c93caa41d32f29d3fc6b9d0096e0c1431a23a85520b283dbaa39d

Analysis

max time kernel
143s
max time network
120s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
01-02-2025 20:17

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General

Target

2025-02-01_72f8465de7af8408681c24b20d5d2e9f_mafia.exe
Size

10.3MB
MD5

72f8465de7af8408681c24b20d5d2e9f
SHA1

78a621cec60ccc7c3238a81790ba19a0e6e516c4
SHA256

8e4a37d0837c93caa41d32f29d3fc6b9d0096e0c1431a23a85520b283dbaa39d
SHA512

6365d556defd3669c37565d81b2baeaec7781ca52182667edb371957ef0a78063034ac1840d3a1d1827c04f38397f41ef6fe7af1a9edfd51660c1a5fe7c0fcca
SSDEEP

6144:VLQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQ4:mTYe+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\tyoxbyuk = "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
2716	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\tyoxbyuk\ImagePath = "C:\\Windows\\SysWOW64\\tyoxbyuk\\ofnlvqxl.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2624	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1088	ofnlvqxl.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1088 set thread context of 2624	1088	ofnlvqxl.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2864	sc.exe
2680	sc.exe
2944	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_72f8465de7af8408681c24b20d5d2e9f_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	svchost.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	ofnlvqxl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2232 wrote to memory of 2652	2232	2025-02-01_72f8465de7af8408681c24b20d5d2e9f_mafia.exe	31
PID 2232 wrote to memory of 2652	2232	2025-02-01_72f8465de7af8408681c24b20d5d2e9f_mafia.exe	31
PID 2232 wrote to memory of 2652	2232	2025-02-01_72f8465de7af8408681c24b20d5d2e9f_mafia.exe	31
PID 2232 wrote to memory of 2652	2232	2025-02-01_72f8465de7af8408681c24b20d5d2e9f_mafia.exe	31
PID 2232 wrote to memory of 2956	2232	2025-02-01_72f8465de7af8408681c24b20d5d2e9f_mafia.exe	33
PID 2232 wrote to memory of 2956	2232	2025-02-01_72f8465de7af8408681c24b20d5d2e9f_mafia.exe	33
PID 2232 wrote to memory of 2956	2232	2025-02-01_72f8465de7af8408681c24b20d5d2e9f_mafia.exe	33
PID 2232 wrote to memory of 2956	2232	2025-02-01_72f8465de7af8408681c24b20d5d2e9f_mafia.exe	33
PID 2232 wrote to memory of 2680	2232	2025-02-01_72f8465de7af8408681c24b20d5d2e9f_mafia.exe	35
PID 2232 wrote to memory of 2680	2232	2025-02-01_72f8465de7af8408681c24b20d5d2e9f_mafia.exe	35
PID 2232 wrote to memory of 2680	2232	2025-02-01_72f8465de7af8408681c24b20d5d2e9f_mafia.exe	35
PID 2232 wrote to memory of 2680	2232	2025-02-01_72f8465de7af8408681c24b20d5d2e9f_mafia.exe	35
PID 2232 wrote to memory of 2944	2232	2025-02-01_72f8465de7af8408681c24b20d5d2e9f_mafia.exe	37
PID 2232 wrote to memory of 2944	2232	2025-02-01_72f8465de7af8408681c24b20d5d2e9f_mafia.exe	37
PID 2232 wrote to memory of 2944	2232	2025-02-01_72f8465de7af8408681c24b20d5d2e9f_mafia.exe	37
PID 2232 wrote to memory of 2944	2232	2025-02-01_72f8465de7af8408681c24b20d5d2e9f_mafia.exe	37
PID 2232 wrote to memory of 2864	2232	2025-02-01_72f8465de7af8408681c24b20d5d2e9f_mafia.exe	39
PID 2232 wrote to memory of 2864	2232	2025-02-01_72f8465de7af8408681c24b20d5d2e9f_mafia.exe	39
PID 2232 wrote to memory of 2864	2232	2025-02-01_72f8465de7af8408681c24b20d5d2e9f_mafia.exe	39
PID 2232 wrote to memory of 2864	2232	2025-02-01_72f8465de7af8408681c24b20d5d2e9f_mafia.exe	39
PID 2232 wrote to memory of 2716	2232	2025-02-01_72f8465de7af8408681c24b20d5d2e9f_mafia.exe	42
PID 2232 wrote to memory of 2716	2232	2025-02-01_72f8465de7af8408681c24b20d5d2e9f_mafia.exe	42
PID 2232 wrote to memory of 2716	2232	2025-02-01_72f8465de7af8408681c24b20d5d2e9f_mafia.exe	42
PID 2232 wrote to memory of 2716	2232	2025-02-01_72f8465de7af8408681c24b20d5d2e9f_mafia.exe	42
PID 1088 wrote to memory of 2624	1088	ofnlvqxl.exe	44
PID 1088 wrote to memory of 2624	1088	ofnlvqxl.exe	44
PID 1088 wrote to memory of 2624	1088	ofnlvqxl.exe	44
PID 1088 wrote to memory of 2624	1088	ofnlvqxl.exe	44
PID 1088 wrote to memory of 2624	1088	ofnlvqxl.exe	44
PID 1088 wrote to memory of 2624	1088	ofnlvqxl.exe	44

C:\Users\Admin\AppData\Local\Temp\2025-02-01_72f8465de7af8408681c24b20d5d2e9f_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-01_72f8465de7af8408681c24b20d5d2e9f_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2232
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\tyoxbyuk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2652
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ofnlvqxl.exe" C:\Windows\SysWOW64\tyoxbyuk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2956
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create tyoxbyuk binPath= "C:\Windows\SysWOW64\tyoxbyuk\ofnlvqxl.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-01_72f8465de7af8408681c24b20d5d2e9f_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2680
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description tyoxbyuk "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2944
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start tyoxbyuk
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2864
- 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:2716

C:\Windows\SysWOW64\tyoxbyuk\ofnlvqxl.exe
C:\Windows\SysWOW64\tyoxbyuk\ofnlvqxl.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-01_72f8465de7af8408681c24b20d5d2e9f_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1088
- 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:2624

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\ofnlvqxl.exe

Filesize
11.0MB

MD5
41fed9707ef6f2b753f6f86f104e046c

SHA1
e6af36ccb67f65f7162dc9e48be3c534643c4fa8

SHA256
5fd8d56af15ffa4af3893a700d603cdb2fb378b504bc8aa0e748ef86df19b8d1

SHA512
fe2bf1d82289a7dd75f7aabf9024fd41a17b69457117bb283cf08fde93d8f9c23d9cc7e68072c1c897dad74225647d17e6d6e0e2dcc192a035ab52f029eca8a7

Download Submit
memory/1088-17-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2232-7-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2232-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2232-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2232-8-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2232-1-0x00000000005B0000-0x00000000006B0000-memory.dmp

Filesize
1024KB

Download
memory/2232-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2624-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2624-16-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2624-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2624-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2624-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads