tofsee | 5d36fd5b1c9ad5e0c71086c6a0f8fbf283023e1c6100766016845a1ca9cc90b2

Analysis

max time kernel
147s
max time network
123s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
01/02/2025, 20:24 UTC

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General

Target

2025-02-01_8c2617eac4af14f03388966694e2c891_mafia.exe
Size

14.6MB
MD5

8c2617eac4af14f03388966694e2c891
SHA1

0e703dd33d84d269b3038c4d64b976478d53b7ac
SHA256

5d36fd5b1c9ad5e0c71086c6a0f8fbf283023e1c6100766016845a1ca9cc90b2
SHA512

0c6eef79f995da65fc44e33b1331a59b08b529915f44c06ee59d048dbb204e1693b77dff9fca6819d0709bcb03d76fd368c430cd029254f204446f56c21c2eea
SSDEEP

393216:cXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXn:

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\ltnvlkqe = "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
2936	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\ltnvlkqe\ImagePath = "C:\\Windows\\SysWOW64\\ltnvlkqe\\kjxznkld.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2756	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1084	kjxznkld.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1084 set thread context of 2756	1084	kjxznkld.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2312	sc.exe
3000	sc.exe
2752	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	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	kjxznkld.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-01_8c2617eac4af14f03388966694e2c891_mafia.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	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 3004 wrote to memory of 1860	3004	2025-02-01_8c2617eac4af14f03388966694e2c891_mafia.exe	29
PID 3004 wrote to memory of 1860	3004	2025-02-01_8c2617eac4af14f03388966694e2c891_mafia.exe	29
PID 3004 wrote to memory of 1860	3004	2025-02-01_8c2617eac4af14f03388966694e2c891_mafia.exe	29
PID 3004 wrote to memory of 1860	3004	2025-02-01_8c2617eac4af14f03388966694e2c891_mafia.exe	29
PID 3004 wrote to memory of 2832	3004	2025-02-01_8c2617eac4af14f03388966694e2c891_mafia.exe	31
PID 3004 wrote to memory of 2832	3004	2025-02-01_8c2617eac4af14f03388966694e2c891_mafia.exe	31
PID 3004 wrote to memory of 2832	3004	2025-02-01_8c2617eac4af14f03388966694e2c891_mafia.exe	31
PID 3004 wrote to memory of 2832	3004	2025-02-01_8c2617eac4af14f03388966694e2c891_mafia.exe	31
PID 3004 wrote to memory of 2312	3004	2025-02-01_8c2617eac4af14f03388966694e2c891_mafia.exe	33
PID 3004 wrote to memory of 2312	3004	2025-02-01_8c2617eac4af14f03388966694e2c891_mafia.exe	33
PID 3004 wrote to memory of 2312	3004	2025-02-01_8c2617eac4af14f03388966694e2c891_mafia.exe	33
PID 3004 wrote to memory of 2312	3004	2025-02-01_8c2617eac4af14f03388966694e2c891_mafia.exe	33
PID 3004 wrote to memory of 3000	3004	2025-02-01_8c2617eac4af14f03388966694e2c891_mafia.exe	35
PID 3004 wrote to memory of 3000	3004	2025-02-01_8c2617eac4af14f03388966694e2c891_mafia.exe	35
PID 3004 wrote to memory of 3000	3004	2025-02-01_8c2617eac4af14f03388966694e2c891_mafia.exe	35
PID 3004 wrote to memory of 3000	3004	2025-02-01_8c2617eac4af14f03388966694e2c891_mafia.exe	35
PID 3004 wrote to memory of 2752	3004	2025-02-01_8c2617eac4af14f03388966694e2c891_mafia.exe	37
PID 3004 wrote to memory of 2752	3004	2025-02-01_8c2617eac4af14f03388966694e2c891_mafia.exe	37
PID 3004 wrote to memory of 2752	3004	2025-02-01_8c2617eac4af14f03388966694e2c891_mafia.exe	37
PID 3004 wrote to memory of 2752	3004	2025-02-01_8c2617eac4af14f03388966694e2c891_mafia.exe	37
PID 3004 wrote to memory of 2936	3004	2025-02-01_8c2617eac4af14f03388966694e2c891_mafia.exe	40
PID 3004 wrote to memory of 2936	3004	2025-02-01_8c2617eac4af14f03388966694e2c891_mafia.exe	40
PID 3004 wrote to memory of 2936	3004	2025-02-01_8c2617eac4af14f03388966694e2c891_mafia.exe	40
PID 3004 wrote to memory of 2936	3004	2025-02-01_8c2617eac4af14f03388966694e2c891_mafia.exe	40
PID 1084 wrote to memory of 2756	1084	kjxznkld.exe	42
PID 1084 wrote to memory of 2756	1084	kjxznkld.exe	42
PID 1084 wrote to memory of 2756	1084	kjxznkld.exe	42
PID 1084 wrote to memory of 2756	1084	kjxznkld.exe	42
PID 1084 wrote to memory of 2756	1084	kjxznkld.exe	42
PID 1084 wrote to memory of 2756	1084	kjxznkld.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-02-01_8c2617eac4af14f03388966694e2c891_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-01_8c2617eac4af14f03388966694e2c891_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3004
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ltnvlkqe\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1860
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kjxznkld.exe" C:\Windows\SysWOW64\ltnvlkqe\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2832
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ltnvlkqe binPath= "C:\Windows\SysWOW64\ltnvlkqe\kjxznkld.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-01_8c2617eac4af14f03388966694e2c891_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2312
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ltnvlkqe "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3000
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ltnvlkqe
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2752
- 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:2936

C:\Windows\SysWOW64\ltnvlkqe\kjxznkld.exe
C:\Windows\SysWOW64\ltnvlkqe\kjxznkld.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-01_8c2617eac4af14f03388966694e2c891_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1084
- 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:2756

Network

DNS

microsoft.com

svchost.exe

Remote address:

8.8.8.8:53

Request

microsoft.com

IN A

Response

microsoft.com

IN A

20.236.44.162

microsoft.com

IN A

20.231.239.246

microsoft.com

IN A

20.76.201.171

microsoft.com

IN A

20.70.246.20

microsoft.com

IN A

20.112.250.133
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

52.101.40.26

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

52.101.8.49
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

mta6�.

yahoo.com

IN MX

mta7�.
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

98.136.96.75

mta5.am0.yahoodns.net

IN A

67.195.204.74

mta5.am0.yahoodns.net

IN A

67.195.204.73

mta5.am0.yahoodns.net

IN A

67.195.228.110

mta5.am0.yahoodns.net

IN A

67.195.228.111

mta5.am0.yahoodns.net

IN A

98.136.96.91

mta5.am0.yahoodns.net

IN A

67.195.204.77

mta5.am0.yahoodns.net

IN A

98.136.96.76
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

142.250.110.27

smtp.google.com

IN A

142.250.110.26

smtp.google.com

IN A

66.102.1.26

smtp.google.com

IN A

142.251.5.26

smtp.google.com

IN A

142.251.5.27
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

217.69.139.150

mxs.mail.ru

IN A

94.100.180.31

20.236.44.162:80

microsoft.com

svchost.exe

190 B
92 B
4
2
52.101.40.26:25

microsoft-com.mail.protection.outlook.com

svchost.exe

152 B
3
43.231.4.7:443

svchost.exe

152 B
3
98.136.96.75:25

mta5.am0.yahoodns.net

svchost.exe

152 B
3
142.250.110.27:25

smtp.google.com

svchost.exe

152 B
3
43.231.4.7:443

svchost.exe

152 B
3
217.69.139.150:25

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

20.236.44.162

20.231.239.246

20.76.201.171

20.70.246.20

20.112.250.133
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

52.101.40.26

52.101.42.0

52.101.11.0

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

98.136.96.75

67.195.204.74

67.195.204.73

67.195.228.110

67.195.228.111

98.136.96.91

67.195.204.77

98.136.96.76
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

142.250.110.27

142.250.110.26

66.102.1.26

142.251.5.26

142.251.5.27
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

217.69.139.150

94.100.180.31

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\kjxznkld.exe

Filesize
11.4MB

MD5
9eb8e06997f19ee781d381c8da406757

SHA1
d701fa3722171960522d26738dd50af137229589

SHA256
e76c52f28da95046d353a0a963cc10663586f58ed3a40ed630f08fb12d401105

SHA512
42deb55962dfa87b31ea48951d2d7f373e27c20b5a27f7b9f04939fecf2967cea9440556beb9e50c2adec872352e06a5506370b61f0324a5ca05193df7b8f713

Download Submit
memory/1084-15-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2756-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2756-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2756-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2756-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2756-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2756-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3004-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3004-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3004-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/3004-7-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/3004-1-0x00000000005B0000-0x00000000006B0000-memory.dmp

Filesize
1024KB

Download
memory/3004-2-0x0000000000020000-0x0000000000033000-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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