tofsee | 843a04f3e1acdd78a036dd537c4840daed7f2b3e8b7f8472c3c20af5a888092b

Analysis

max time kernel
143s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
31/01/2025, 05:28 UTC

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General

Target

2025-01-31_a115c76529a4790992d6585ccc323b5d_mafia.exe
Size

13.6MB
MD5

a115c76529a4790992d6585ccc323b5d
SHA1

d55d060919f5bde9f5d420f4f9162fd48df1914d
SHA256

843a04f3e1acdd78a036dd537c4840daed7f2b3e8b7f8472c3c20af5a888092b
SHA512

5b006c4ea6b3355561ab5bfd5b2225d39c610f55b2005e816c74f884ba04e896ce091a8a6e1071732fcb4dc41c3d1f8ca1f320897bf2c72135b57f5a468eb275
SSDEEP

24576:XEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZJ:0fotP

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\bzedbalp = "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
2832	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\bzedbalp\ImagePath = "C:\\Windows\\SysWOW64\\bzedbalp\\ybhbqbms.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
1860	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2736	ybhbqbms.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2736 set thread context of 1860	2736	ybhbqbms.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2600	sc.exe
2896	sc.exe
2288	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 queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\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	2025-01-31_a115c76529a4790992d6585ccc323b5d_mafia.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	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ybhbqbms.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2436 wrote to memory of 2764	2436	2025-01-31_a115c76529a4790992d6585ccc323b5d_mafia.exe	31
PID 2436 wrote to memory of 2764	2436	2025-01-31_a115c76529a4790992d6585ccc323b5d_mafia.exe	31
PID 2436 wrote to memory of 2764	2436	2025-01-31_a115c76529a4790992d6585ccc323b5d_mafia.exe	31
PID 2436 wrote to memory of 2764	2436	2025-01-31_a115c76529a4790992d6585ccc323b5d_mafia.exe	31
PID 2436 wrote to memory of 2792	2436	2025-01-31_a115c76529a4790992d6585ccc323b5d_mafia.exe	33
PID 2436 wrote to memory of 2792	2436	2025-01-31_a115c76529a4790992d6585ccc323b5d_mafia.exe	33
PID 2436 wrote to memory of 2792	2436	2025-01-31_a115c76529a4790992d6585ccc323b5d_mafia.exe	33
PID 2436 wrote to memory of 2792	2436	2025-01-31_a115c76529a4790992d6585ccc323b5d_mafia.exe	33
PID 2436 wrote to memory of 2288	2436	2025-01-31_a115c76529a4790992d6585ccc323b5d_mafia.exe	35
PID 2436 wrote to memory of 2288	2436	2025-01-31_a115c76529a4790992d6585ccc323b5d_mafia.exe	35
PID 2436 wrote to memory of 2288	2436	2025-01-31_a115c76529a4790992d6585ccc323b5d_mafia.exe	35
PID 2436 wrote to memory of 2288	2436	2025-01-31_a115c76529a4790992d6585ccc323b5d_mafia.exe	35
PID 2436 wrote to memory of 2600	2436	2025-01-31_a115c76529a4790992d6585ccc323b5d_mafia.exe	37
PID 2436 wrote to memory of 2600	2436	2025-01-31_a115c76529a4790992d6585ccc323b5d_mafia.exe	37
PID 2436 wrote to memory of 2600	2436	2025-01-31_a115c76529a4790992d6585ccc323b5d_mafia.exe	37
PID 2436 wrote to memory of 2600	2436	2025-01-31_a115c76529a4790992d6585ccc323b5d_mafia.exe	37
PID 2436 wrote to memory of 2896	2436	2025-01-31_a115c76529a4790992d6585ccc323b5d_mafia.exe	39
PID 2436 wrote to memory of 2896	2436	2025-01-31_a115c76529a4790992d6585ccc323b5d_mafia.exe	39
PID 2436 wrote to memory of 2896	2436	2025-01-31_a115c76529a4790992d6585ccc323b5d_mafia.exe	39
PID 2436 wrote to memory of 2896	2436	2025-01-31_a115c76529a4790992d6585ccc323b5d_mafia.exe	39
PID 2436 wrote to memory of 2832	2436	2025-01-31_a115c76529a4790992d6585ccc323b5d_mafia.exe	42
PID 2436 wrote to memory of 2832	2436	2025-01-31_a115c76529a4790992d6585ccc323b5d_mafia.exe	42
PID 2436 wrote to memory of 2832	2436	2025-01-31_a115c76529a4790992d6585ccc323b5d_mafia.exe	42
PID 2436 wrote to memory of 2832	2436	2025-01-31_a115c76529a4790992d6585ccc323b5d_mafia.exe	42
PID 2736 wrote to memory of 1860	2736	ybhbqbms.exe	44
PID 2736 wrote to memory of 1860	2736	ybhbqbms.exe	44
PID 2736 wrote to memory of 1860	2736	ybhbqbms.exe	44
PID 2736 wrote to memory of 1860	2736	ybhbqbms.exe	44
PID 2736 wrote to memory of 1860	2736	ybhbqbms.exe	44
PID 2736 wrote to memory of 1860	2736	ybhbqbms.exe	44

C:\Users\Admin\AppData\Local\Temp\2025-01-31_a115c76529a4790992d6585ccc323b5d_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-31_a115c76529a4790992d6585ccc323b5d_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2436
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\bzedbalp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2764
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ybhbqbms.exe" C:\Windows\SysWOW64\bzedbalp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2792
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create bzedbalp binPath= "C:\Windows\SysWOW64\bzedbalp\ybhbqbms.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-31_a115c76529a4790992d6585ccc323b5d_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2288
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description bzedbalp "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2600
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start bzedbalp
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2896
- 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:2832

C:\Windows\SysWOW64\bzedbalp\ybhbqbms.exe
C:\Windows\SysWOW64\bzedbalp\ybhbqbms.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-31_a115c76529a4790992d6585ccc323b5d_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2736
- 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:1860

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

20.76.201.171

microsoft.com

IN A

20.112.250.133

microsoft.com

IN A

20.70.246.20

microsoft.com

IN A

20.231.239.246
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

52.101.40.26

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

mta7am0yahoodnsnet

yahoo.com

IN MX

mta6�.

yahoo.com

IN MX

mta5�.
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

98.136.96.77

mta7.am0.yahoodns.net

IN A

98.136.96.76

mta7.am0.yahoodns.net

IN A

67.195.228.94

mta7.am0.yahoodns.net

IN A

67.195.204.77

mta7.am0.yahoodns.net

IN A

67.195.228.109

mta7.am0.yahoodns.net

IN A

67.195.204.74

mta7.am0.yahoodns.net

IN A

67.195.228.110

mta7.am0.yahoodns.net

IN A

67.195.228.111
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

64.233.166.27

smtp.google.com

IN A

74.125.71.26

smtp.google.com

IN A

74.125.71.27

smtp.google.com

IN A

74.125.133.26

smtp.google.com

IN A

64.233.166.26
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

20.236.44.162:80

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
98.136.96.77:25

mta7.am0.yahoodns.net

svchost.exe

152 B
3
64.233.166.27:25

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

20.236.44.162

20.76.201.171

20.112.250.133

20.70.246.20

20.231.239.246
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

52.101.40.26

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

mta7.am0.yahoodns.net

dns

svchost.exe

67 B
195 B
1
1

DNS Request

mta7.am0.yahoodns.net

DNS Response

98.136.96.77

98.136.96.76

67.195.228.94

67.195.204.77

67.195.228.109

67.195.204.74

67.195.228.110

67.195.228.111
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

64.233.166.27

74.125.71.26

74.125.71.27

74.125.133.26

64.233.166.26
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\ybhbqbms.exe

Filesize
12.6MB

MD5
ac5c80ecf0b219d948033d7369997d4b

SHA1
a807a85a1ed921ea409849a84fa3b8903519a207

SHA256
ef8ab70df598386e34bd274540fb7253573ec68725ab80f22decd595d4384b3d

SHA512
0f2e23c02a0186818e1d85e817a808cc43258c7604ad487f621ae005516c68ed02efcce46924b866b84ae566d9dcf6794465d60a27f1c5bb2a216bca34292db9

Download Submit
memory/1860-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1860-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1860-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1860-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1860-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2436-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2436-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2436-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2436-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2436-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2436-1-0x00000000004F0000-0x00000000005F0000-memory.dmp

Filesize
1024KB

Download
memory/2736-17-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

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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