tofsee | ddaa428d2e3531994a4902d7a09f248edbc4be2d4fcff8be75f3616439b69707

Analysis

max time kernel
144s
max time network
120s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
30/01/2025, 21:25 UTC

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General

Target

2025-01-30_8239d411837194c15c188f06ffb1003c_mafia.exe
Size

14.7MB
MD5

8239d411837194c15c188f06ffb1003c
SHA1

4c6edd70541223b1e7792d5e6aa5987200d9efda
SHA256

ddaa428d2e3531994a4902d7a09f248edbc4be2d4fcff8be75f3616439b69707
SHA512

ef6877cba0a22b80a53530f4353065f86967c7fd1548123a860b42d6124e5127bb187a244f81c39f0056b8cf9db5838f23892eca774bfde5950f75241be2e7fc
SSDEEP

393216:GXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX7:a

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\vovpmwwk = "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
2688	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\vovpmwwk\ImagePath = "C:\\Windows\\SysWOW64\\vovpmwwk\\ydnicoln.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2564	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2560	ydnicoln.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2560 set thread context of 2564	2560	ydnicoln.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2628	sc.exe
2640	sc.exe
2716	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	svchost.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	ydnicoln.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-30_8239d411837194c15c188f06ffb1003c_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2712 wrote to memory of 2668	2712	2025-01-30_8239d411837194c15c188f06ffb1003c_mafia.exe	28
PID 2712 wrote to memory of 2668	2712	2025-01-30_8239d411837194c15c188f06ffb1003c_mafia.exe	28
PID 2712 wrote to memory of 2668	2712	2025-01-30_8239d411837194c15c188f06ffb1003c_mafia.exe	28
PID 2712 wrote to memory of 2668	2712	2025-01-30_8239d411837194c15c188f06ffb1003c_mafia.exe	28
PID 2712 wrote to memory of 2804	2712	2025-01-30_8239d411837194c15c188f06ffb1003c_mafia.exe	30
PID 2712 wrote to memory of 2804	2712	2025-01-30_8239d411837194c15c188f06ffb1003c_mafia.exe	30
PID 2712 wrote to memory of 2804	2712	2025-01-30_8239d411837194c15c188f06ffb1003c_mafia.exe	30
PID 2712 wrote to memory of 2804	2712	2025-01-30_8239d411837194c15c188f06ffb1003c_mafia.exe	30
PID 2712 wrote to memory of 2628	2712	2025-01-30_8239d411837194c15c188f06ffb1003c_mafia.exe	32
PID 2712 wrote to memory of 2628	2712	2025-01-30_8239d411837194c15c188f06ffb1003c_mafia.exe	32
PID 2712 wrote to memory of 2628	2712	2025-01-30_8239d411837194c15c188f06ffb1003c_mafia.exe	32
PID 2712 wrote to memory of 2628	2712	2025-01-30_8239d411837194c15c188f06ffb1003c_mafia.exe	32
PID 2712 wrote to memory of 2640	2712	2025-01-30_8239d411837194c15c188f06ffb1003c_mafia.exe	34
PID 2712 wrote to memory of 2640	2712	2025-01-30_8239d411837194c15c188f06ffb1003c_mafia.exe	34
PID 2712 wrote to memory of 2640	2712	2025-01-30_8239d411837194c15c188f06ffb1003c_mafia.exe	34
PID 2712 wrote to memory of 2640	2712	2025-01-30_8239d411837194c15c188f06ffb1003c_mafia.exe	34
PID 2712 wrote to memory of 2716	2712	2025-01-30_8239d411837194c15c188f06ffb1003c_mafia.exe	36
PID 2712 wrote to memory of 2716	2712	2025-01-30_8239d411837194c15c188f06ffb1003c_mafia.exe	36
PID 2712 wrote to memory of 2716	2712	2025-01-30_8239d411837194c15c188f06ffb1003c_mafia.exe	36
PID 2712 wrote to memory of 2716	2712	2025-01-30_8239d411837194c15c188f06ffb1003c_mafia.exe	36
PID 2712 wrote to memory of 2688	2712	2025-01-30_8239d411837194c15c188f06ffb1003c_mafia.exe	39
PID 2712 wrote to memory of 2688	2712	2025-01-30_8239d411837194c15c188f06ffb1003c_mafia.exe	39
PID 2712 wrote to memory of 2688	2712	2025-01-30_8239d411837194c15c188f06ffb1003c_mafia.exe	39
PID 2712 wrote to memory of 2688	2712	2025-01-30_8239d411837194c15c188f06ffb1003c_mafia.exe	39
PID 2560 wrote to memory of 2564	2560	ydnicoln.exe	41
PID 2560 wrote to memory of 2564	2560	ydnicoln.exe	41
PID 2560 wrote to memory of 2564	2560	ydnicoln.exe	41
PID 2560 wrote to memory of 2564	2560	ydnicoln.exe	41
PID 2560 wrote to memory of 2564	2560	ydnicoln.exe	41
PID 2560 wrote to memory of 2564	2560	ydnicoln.exe	41

C:\Users\Admin\AppData\Local\Temp\2025-01-30_8239d411837194c15c188f06ffb1003c_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-30_8239d411837194c15c188f06ffb1003c_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2712
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\vovpmwwk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2668
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ydnicoln.exe" C:\Windows\SysWOW64\vovpmwwk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2804
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create vovpmwwk binPath= "C:\Windows\SysWOW64\vovpmwwk\ydnicoln.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-30_8239d411837194c15c188f06ffb1003c_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2628
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description vovpmwwk "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2640
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start vovpmwwk
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2716
- 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:2688

C:\Windows\SysWOW64\vovpmwwk\ydnicoln.exe
C:\Windows\SysWOW64\vovpmwwk\ydnicoln.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-30_8239d411837194c15c188f06ffb1003c_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2560
- 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:2564

Network

DNS

microsoft.com

svchost.exe

Remote address:

8.8.8.8:53

Request

microsoft.com

IN A

Response

microsoft.com

IN A

20.70.246.20

microsoft.com

IN A

20.236.44.162

microsoft.com

IN A

20.112.250.133

microsoft.com

IN A

20.231.239.246

microsoft.com

IN A

20.76.201.171
DNS

microsoft.com

svchost.exe

Remote address:

8.8.8.8:53

Request

microsoft.com

IN MX

Response

microsoft.com

IN MX

microsoft-commail protectionoutlook�
DNS

microsoft-com.mail.protection.outlook.com

svchost.exe

Remote address:

8.8.8.8:53

Request

microsoft-com.mail.protection.outlook.com

IN A

Response

microsoft-com.mail.protection.outlook.com

IN A

52.101.42.0

microsoft-com.mail.protection.outlook.com

IN A

52.101.11.0

microsoft-com.mail.protection.outlook.com

IN A

52.101.40.26

microsoft-com.mail.protection.outlook.com

IN A

52.101.8.49
DNS

yahoo.com

svchost.exe

Remote address:

8.8.8.8:53

Request

yahoo.com

IN MX

Response

yahoo.com

IN MX

mta5am0yahoodnsnet

yahoo.com

IN MX

mta7�.

yahoo.com

IN MX

mta6�.
DNS

mta5.am0.yahoodns.net

svchost.exe

Remote address:

8.8.8.8:53

Request

mta5.am0.yahoodns.net

IN A

Response

mta5.am0.yahoodns.net

IN A

98.136.96.76

mta5.am0.yahoodns.net

IN A

67.195.204.74

mta5.am0.yahoodns.net

IN A

67.195.228.110

mta5.am0.yahoodns.net

IN A

98.136.96.74

mta5.am0.yahoodns.net

IN A

67.195.228.109

mta5.am0.yahoodns.net

IN A

98.136.96.75

mta5.am0.yahoodns.net

IN A

67.195.204.72

mta5.am0.yahoodns.net

IN A

67.195.204.79
DNS

google.com

svchost.exe

Remote address:

8.8.8.8:53

Request

google.com

IN MX

Response

google.com

IN MX

smtp�
DNS

smtp.google.com

svchost.exe

Remote address:

8.8.8.8:53

Request

smtp.google.com

IN A

Response

smtp.google.com

IN A

64.233.167.26

smtp.google.com

IN A

64.233.166.26

smtp.google.com

IN A

74.125.206.27

smtp.google.com

IN A

74.125.206.26

smtp.google.com

IN A

64.233.167.27
DNS

mail.ru

svchost.exe

Remote address:

8.8.8.8:53

Request

mail.ru

IN MX

Response

mail.ru

IN MX

mxs�
DNS

mxs.mail.ru

svchost.exe

Remote address:

8.8.8.8:53

Request

mxs.mail.ru

IN A

Response

mxs.mail.ru

IN A

94.100.180.31

mxs.mail.ru

IN A

217.69.139.150

20.70.246.20:80

microsoft.com

svchost.exe

190 B
92 B
4
2
52.101.42.0:25

microsoft-com.mail.protection.outlook.com

svchost.exe

152 B
3
43.231.4.7:443

svchost.exe

152 B
3
98.136.96.76:25

mta5.am0.yahoodns.net

svchost.exe

152 B
3
64.233.167.26:25

smtp.google.com

svchost.exe

152 B
3
43.231.4.7:443

svchost.exe

152 B
3
94.100.180.31:25

mxs.mail.ru

svchost.exe

152 B
3
43.231.4.7:443

svchost.exe

152 B
3

8.8.8.8:53

microsoft.com

dns

svchost.exe

59 B
139 B
1
1

DNS Request

microsoft.com

DNS Response

20.70.246.20

20.236.44.162

20.112.250.133

20.231.239.246

20.76.201.171
8.8.8.8:53

microsoft.com

dns

svchost.exe

59 B
113 B
1
1

DNS Request

microsoft.com
8.8.8.8:53

microsoft-com.mail.protection.outlook.com

dns

svchost.exe

87 B
151 B
1
1

DNS Request

microsoft-com.mail.protection.outlook.com

DNS Response

52.101.42.0

52.101.11.0

52.101.40.26

52.101.8.49
8.8.8.8:53

yahoo.com

dns

svchost.exe

55 B
134 B
1
1

DNS Request

yahoo.com
8.8.8.8:53

mta5.am0.yahoodns.net

dns

svchost.exe

67 B
195 B
1
1

DNS Request

mta5.am0.yahoodns.net

DNS Response

98.136.96.76

67.195.204.74

67.195.228.110

98.136.96.74

67.195.228.109

98.136.96.75

67.195.204.72

67.195.204.79
8.8.8.8:53

google.com

dns

svchost.exe

56 B
77 B
1
1

DNS Request

google.com
8.8.8.8:53

smtp.google.com

dns

svchost.exe

61 B
141 B
1
1

DNS Request

smtp.google.com

DNS Response

64.233.167.26

64.233.166.26

74.125.206.27

74.125.206.26

64.233.167.27
8.8.8.8:53

mail.ru

dns

svchost.exe

53 B
73 B
1
1

DNS Request

mail.ru
8.8.8.8:53

mxs.mail.ru

dns

svchost.exe

57 B
89 B
1
1

DNS Request

mxs.mail.ru

DNS Response

94.100.180.31

217.69.139.150

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\ydnicoln.exe

Filesize
11.0MB

MD5
11e7d5a4673217bd9d1bebcedab372a2

SHA1
ece84d8bdb482c29a8cd2ae4d1ffb7d06047c557

SHA256
022be22edaf98129cf779a5478a5f1ddca32c6ff240baf4709b911c14433fc7b

SHA512
eb34f02d9f0053f19e3c8231d6b4a799bb175118c81f7ea21da79a71566617d6e7947c745622bfa262b9d926f6a1dc97ae70bb1a80e698e3b0b09c9afc15ac45

Download Submit
memory/2560-16-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2564-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2564-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2564-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2564-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2564-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2712-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2712-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2712-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2712-7-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2712-1-0x00000000005B0000-0x00000000006B0000-memory.dmp

Filesize
1024KB

Download
memory/2712-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

DNS Request

DNS Response

DNS Request

DNS Request

DNS Response

DNS Request

DNS Request

DNS Response

DNS Request

DNS Request

DNS Response

DNS Request

DNS Request

DNS Response

MITRE ATT&CK Enterprise v15

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