tofsee | ab7df9602cb6368e75710ec61a31f508242f8d33cb107ce293fe807434d942b7

Analysis

max time kernel
144s
max time network
119s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
01/02/2025, 20:01 UTC

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General

Target

2025-02-01_30a7d8bf5a7eb75f9e72c522ae0b0efd_mafia.exe
Size

12.4MB
MD5

30a7d8bf5a7eb75f9e72c522ae0b0efd
SHA1

54201ea3b968280c003d8b43136bcd274ce050cb
SHA256

ab7df9602cb6368e75710ec61a31f508242f8d33cb107ce293fe807434d942b7
SHA512

693bae076588d7e8d8c44be14452e72238216b1446f1f1a795af36ec34ca56d273a745673c74437f7b929c65ac24d7776c32bbee31aeaa292aa76f8910322ce9
SSDEEP

49152:oqE0YKr3fYPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP:oqtYc3

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\rzskqzpo = "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
2808	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\rzskqzpo\ImagePath = "C:\\Windows\\SysWOW64\\rzskqzpo\\sbvasrmi.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2700	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2468	sbvasrmi.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2468 set thread context of 2700	2468	sbvasrmi.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2760	sc.exe
2796	sc.exe
3044	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-01_30a7d8bf5a7eb75f9e72c522ae0b0efd_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	sbvasrmi.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 308 wrote to memory of 2776	308	2025-02-01_30a7d8bf5a7eb75f9e72c522ae0b0efd_mafia.exe	30
PID 308 wrote to memory of 2776	308	2025-02-01_30a7d8bf5a7eb75f9e72c522ae0b0efd_mafia.exe	30
PID 308 wrote to memory of 2776	308	2025-02-01_30a7d8bf5a7eb75f9e72c522ae0b0efd_mafia.exe	30
PID 308 wrote to memory of 2776	308	2025-02-01_30a7d8bf5a7eb75f9e72c522ae0b0efd_mafia.exe	30
PID 308 wrote to memory of 2848	308	2025-02-01_30a7d8bf5a7eb75f9e72c522ae0b0efd_mafia.exe	32
PID 308 wrote to memory of 2848	308	2025-02-01_30a7d8bf5a7eb75f9e72c522ae0b0efd_mafia.exe	32
PID 308 wrote to memory of 2848	308	2025-02-01_30a7d8bf5a7eb75f9e72c522ae0b0efd_mafia.exe	32
PID 308 wrote to memory of 2848	308	2025-02-01_30a7d8bf5a7eb75f9e72c522ae0b0efd_mafia.exe	32
PID 308 wrote to memory of 2760	308	2025-02-01_30a7d8bf5a7eb75f9e72c522ae0b0efd_mafia.exe	34
PID 308 wrote to memory of 2760	308	2025-02-01_30a7d8bf5a7eb75f9e72c522ae0b0efd_mafia.exe	34
PID 308 wrote to memory of 2760	308	2025-02-01_30a7d8bf5a7eb75f9e72c522ae0b0efd_mafia.exe	34
PID 308 wrote to memory of 2760	308	2025-02-01_30a7d8bf5a7eb75f9e72c522ae0b0efd_mafia.exe	34
PID 308 wrote to memory of 2796	308	2025-02-01_30a7d8bf5a7eb75f9e72c522ae0b0efd_mafia.exe	36
PID 308 wrote to memory of 2796	308	2025-02-01_30a7d8bf5a7eb75f9e72c522ae0b0efd_mafia.exe	36
PID 308 wrote to memory of 2796	308	2025-02-01_30a7d8bf5a7eb75f9e72c522ae0b0efd_mafia.exe	36
PID 308 wrote to memory of 2796	308	2025-02-01_30a7d8bf5a7eb75f9e72c522ae0b0efd_mafia.exe	36
PID 308 wrote to memory of 3044	308	2025-02-01_30a7d8bf5a7eb75f9e72c522ae0b0efd_mafia.exe	38
PID 308 wrote to memory of 3044	308	2025-02-01_30a7d8bf5a7eb75f9e72c522ae0b0efd_mafia.exe	38
PID 308 wrote to memory of 3044	308	2025-02-01_30a7d8bf5a7eb75f9e72c522ae0b0efd_mafia.exe	38
PID 308 wrote to memory of 3044	308	2025-02-01_30a7d8bf5a7eb75f9e72c522ae0b0efd_mafia.exe	38
PID 308 wrote to memory of 2808	308	2025-02-01_30a7d8bf5a7eb75f9e72c522ae0b0efd_mafia.exe	41
PID 308 wrote to memory of 2808	308	2025-02-01_30a7d8bf5a7eb75f9e72c522ae0b0efd_mafia.exe	41
PID 308 wrote to memory of 2808	308	2025-02-01_30a7d8bf5a7eb75f9e72c522ae0b0efd_mafia.exe	41
PID 308 wrote to memory of 2808	308	2025-02-01_30a7d8bf5a7eb75f9e72c522ae0b0efd_mafia.exe	41
PID 2468 wrote to memory of 2700	2468	sbvasrmi.exe	43
PID 2468 wrote to memory of 2700	2468	sbvasrmi.exe	43
PID 2468 wrote to memory of 2700	2468	sbvasrmi.exe	43
PID 2468 wrote to memory of 2700	2468	sbvasrmi.exe	43
PID 2468 wrote to memory of 2700	2468	sbvasrmi.exe	43
PID 2468 wrote to memory of 2700	2468	sbvasrmi.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-02-01_30a7d8bf5a7eb75f9e72c522ae0b0efd_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-01_30a7d8bf5a7eb75f9e72c522ae0b0efd_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:308
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rzskqzpo\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2776
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\sbvasrmi.exe" C:\Windows\SysWOW64\rzskqzpo\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2848
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create rzskqzpo binPath= "C:\Windows\SysWOW64\rzskqzpo\sbvasrmi.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-01_30a7d8bf5a7eb75f9e72c522ae0b0efd_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2760
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description rzskqzpo "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2796
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start rzskqzpo
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3044
- 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:2808

C:\Windows\SysWOW64\rzskqzpo\sbvasrmi.exe
C:\Windows\SysWOW64\rzskqzpo\sbvasrmi.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-01_30a7d8bf5a7eb75f9e72c522ae0b0efd_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2468
- 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:2700

Network

DNS

microsoft.com

svchost.exe

Remote address:

8.8.8.8:53

Request

microsoft.com

IN A

Response

microsoft.com

IN A

20.76.201.171

microsoft.com

IN A

20.112.250.133

microsoft.com

IN A

20.231.239.246

microsoft.com

IN A

20.236.44.162

microsoft.com

IN A

20.70.246.20
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

52.101.8.49

microsoft-com.mail.protection.outlook.com

IN A

52.101.11.0

microsoft-com.mail.protection.outlook.com

IN A

52.101.42.0

microsoft-com.mail.protection.outlook.com

IN A

52.101.40.26
DNS

yahoo.com

svchost.exe

Remote address:

8.8.8.8:53

Request

yahoo.com

IN MX

Response

yahoo.com

IN MX

mta7am0yahoodnsnet

yahoo.com

IN MX

mta5�.

yahoo.com

IN MX

mta6�.
DNS

mta7.am0.yahoodns.net

svchost.exe

Remote address:

8.8.8.8:53

Request

mta7.am0.yahoodns.net

IN A

Response

mta7.am0.yahoodns.net

IN A

67.195.204.73

mta7.am0.yahoodns.net

IN A

67.195.204.77

mta7.am0.yahoodns.net

IN A

98.136.96.75

mta7.am0.yahoodns.net

IN A

67.195.228.111

mta7.am0.yahoodns.net

IN A

98.136.96.77

mta7.am0.yahoodns.net

IN A

67.195.204.79

mta7.am0.yahoodns.net

IN A

67.195.228.106

mta7.am0.yahoodns.net

IN A

98.136.96.74
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

142.250.110.26

smtp.google.com

IN A

142.251.5.26

smtp.google.com

IN A

142.251.5.27

smtp.google.com

IN A

142.250.110.27

smtp.google.com

IN A

66.102.1.26
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

20.76.201.171:80

microsoft.com

svchost.exe

190 B
92 B
4
2
52.101.8.49:25

microsoft-com.mail.protection.outlook.com

svchost.exe

152 B
3
43.231.4.7:443

svchost.exe

152 B
3
67.195.204.73:25

mta7.am0.yahoodns.net

svchost.exe

152 B
3
142.250.110.26:25

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

20.76.201.171

20.112.250.133

20.231.239.246

20.236.44.162

20.70.246.20
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

52.101.8.49

52.101.11.0

52.101.42.0

52.101.40.26
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

mta7.am0.yahoodns.net

dns

svchost.exe

67 B
195 B
1
1

DNS Request

mta7.am0.yahoodns.net

DNS Response

67.195.204.73

67.195.204.77

98.136.96.75

67.195.228.111

98.136.96.77

67.195.204.79

67.195.228.106

98.136.96.74
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

142.250.110.26

142.251.5.26

142.251.5.27

142.250.110.27

66.102.1.26
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\sbvasrmi.exe

Filesize
12.6MB

MD5
ff48fc93469fd21afda8be4905d3566f

SHA1
f4da635a160feabc78cd8f6963e8e1e5e8612df3

SHA256
98a46a77e84529f21356c4ffe85b4c85325df1b0199a29c890d751065c72e474

SHA512
364c15a1906655c4c14d5eec4e088f716d3dfc06e894af3bc3d6c12df7ffde5379469b0ae9992aa864028a7f86ac66950525188885674826bf7609d3b9d28a80

Download Submit
memory/308-7-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/308-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/308-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/308-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/308-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/308-1-0x0000000000290000-0x0000000000390000-memory.dmp

Filesize
1024KB

Download
memory/2468-15-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/2700-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2700-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2700-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2700-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2700-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

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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