tofsee | 3f198854ec2a1e8720d308e6543f507b8313696f4c5a659fafffb0e355f9ebf4

Analysis

max time kernel
146s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
04-11-2024 22:19

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General

Target

2024-11-04_b29c68e036c667eaa53f1d05250810aa_mafia.exe
Size

14.4MB
MD5

b29c68e036c667eaa53f1d05250810aa
SHA1

e7dd2c9c7126de966d0b6dc0454759dcad7e3184
SHA256

3f198854ec2a1e8720d308e6543f507b8313696f4c5a659fafffb0e355f9ebf4
SHA512

23a79bfbf7ff53e7b4aaee4b96b78d436d58ae966d6d17184fc39784f03283689f51e8460ace2f98ff92e435721dec49a34fb1122f08aa8cbac8b5b01c02ac4e
SSDEEP

49152:eVdrl/8HAzGCbGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGv:eVdrl/9zG

Score

10^/10

tofsee discovery evasion 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

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\usznbdxm = "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

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

Processes:

netsh.exe

pid	Process
2316	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\usznbdxm\ImagePath = "C:\\Windows\\SysWOW64\\usznbdxm\\hbdauqaf.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid	Process
1412	svchost.exe

Executes dropped EXE 1 IoCs

Processes:

hbdauqaf.exe

pid	Process
2648	hbdauqaf.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

hbdauqaf.exe

description	pid	Process	procid_target
PID 2648 set thread context of 1412	2648	hbdauqaf.exe	43

Launches sc.exe 3 IoCs

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

Processes:

sc.exesc.exesc.exe

pid	Process
2948	sc.exe
2692	sc.exe
2592	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

Processes:

netsh.exe

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

Processes:

cmd.exesc.exehbdauqaf.exesvchost.exe2024-11-04_b29c68e036c667eaa53f1d05250810aa_mafia.exesc.exesc.exenetsh.execmd.exe

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	hbdauqaf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-04_b29c68e036c667eaa53f1d05250810aa_mafia.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	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

2024-11-04_b29c68e036c667eaa53f1d05250810aa_mafia.exehbdauqaf.exe

description	pid	Process	procid_target
PID 2784 wrote to memory of 2712	2784	2024-11-04_b29c68e036c667eaa53f1d05250810aa_mafia.exe	30
PID 2784 wrote to memory of 2712	2784	2024-11-04_b29c68e036c667eaa53f1d05250810aa_mafia.exe	30
PID 2784 wrote to memory of 2712	2784	2024-11-04_b29c68e036c667eaa53f1d05250810aa_mafia.exe	30
PID 2784 wrote to memory of 2712	2784	2024-11-04_b29c68e036c667eaa53f1d05250810aa_mafia.exe	30
PID 2784 wrote to memory of 2740	2784	2024-11-04_b29c68e036c667eaa53f1d05250810aa_mafia.exe	32
PID 2784 wrote to memory of 2740	2784	2024-11-04_b29c68e036c667eaa53f1d05250810aa_mafia.exe	32
PID 2784 wrote to memory of 2740	2784	2024-11-04_b29c68e036c667eaa53f1d05250810aa_mafia.exe	32
PID 2784 wrote to memory of 2740	2784	2024-11-04_b29c68e036c667eaa53f1d05250810aa_mafia.exe	32
PID 2784 wrote to memory of 2948	2784	2024-11-04_b29c68e036c667eaa53f1d05250810aa_mafia.exe	34
PID 2784 wrote to memory of 2948	2784	2024-11-04_b29c68e036c667eaa53f1d05250810aa_mafia.exe	34
PID 2784 wrote to memory of 2948	2784	2024-11-04_b29c68e036c667eaa53f1d05250810aa_mafia.exe	34
PID 2784 wrote to memory of 2948	2784	2024-11-04_b29c68e036c667eaa53f1d05250810aa_mafia.exe	34
PID 2784 wrote to memory of 2692	2784	2024-11-04_b29c68e036c667eaa53f1d05250810aa_mafia.exe	36
PID 2784 wrote to memory of 2692	2784	2024-11-04_b29c68e036c667eaa53f1d05250810aa_mafia.exe	36
PID 2784 wrote to memory of 2692	2784	2024-11-04_b29c68e036c667eaa53f1d05250810aa_mafia.exe	36
PID 2784 wrote to memory of 2692	2784	2024-11-04_b29c68e036c667eaa53f1d05250810aa_mafia.exe	36
PID 2784 wrote to memory of 2592	2784	2024-11-04_b29c68e036c667eaa53f1d05250810aa_mafia.exe	38
PID 2784 wrote to memory of 2592	2784	2024-11-04_b29c68e036c667eaa53f1d05250810aa_mafia.exe	38
PID 2784 wrote to memory of 2592	2784	2024-11-04_b29c68e036c667eaa53f1d05250810aa_mafia.exe	38
PID 2784 wrote to memory of 2592	2784	2024-11-04_b29c68e036c667eaa53f1d05250810aa_mafia.exe	38
PID 2784 wrote to memory of 2316	2784	2024-11-04_b29c68e036c667eaa53f1d05250810aa_mafia.exe	41
PID 2784 wrote to memory of 2316	2784	2024-11-04_b29c68e036c667eaa53f1d05250810aa_mafia.exe	41
PID 2784 wrote to memory of 2316	2784	2024-11-04_b29c68e036c667eaa53f1d05250810aa_mafia.exe	41
PID 2784 wrote to memory of 2316	2784	2024-11-04_b29c68e036c667eaa53f1d05250810aa_mafia.exe	41
PID 2648 wrote to memory of 1412	2648	hbdauqaf.exe	43
PID 2648 wrote to memory of 1412	2648	hbdauqaf.exe	43
PID 2648 wrote to memory of 1412	2648	hbdauqaf.exe	43
PID 2648 wrote to memory of 1412	2648	hbdauqaf.exe	43
PID 2648 wrote to memory of 1412	2648	hbdauqaf.exe	43
PID 2648 wrote to memory of 1412	2648	hbdauqaf.exe	43

C:\Users\Admin\AppData\Local\Temp\2024-11-04_b29c68e036c667eaa53f1d05250810aa_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-04_b29c68e036c667eaa53f1d05250810aa_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2784
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\usznbdxm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2712
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\hbdauqaf.exe" C:\Windows\SysWOW64\usznbdxm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2740
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create usznbdxm binPath= "C:\Windows\SysWOW64\usznbdxm\hbdauqaf.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-11-04_b29c68e036c667eaa53f1d05250810aa_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2948
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description usznbdxm "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2692
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start usznbdxm
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2592
- 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:2316

C:\Windows\SysWOW64\usznbdxm\hbdauqaf.exe
C:\Windows\SysWOW64\usznbdxm\hbdauqaf.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-11-04_b29c68e036c667eaa53f1d05250810aa_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2648
- 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:1412

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\hbdauqaf.exe

Filesize
11.5MB

MD5
7f60beb2139827839495a01580ab7088

SHA1
84093a3f53eb72f7cb35115f4bcacef347e8f53d

SHA256
ead59102fbfb0230a909a4946cd3bb31155844e08b66657e44b2f4a3053e9aa0

SHA512
b81f1b21b462b29288e044ebb21400ca5ef3a5137f3670009239df36dacb9f9a9186270ba38eb5142ab4c32eeffcc4a96845b2b6c72671e06020ab17845bb4ee

Download Submit
memory/1412-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1412-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1412-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1412-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1412-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2648-16-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/2784-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2784-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2784-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2784-8-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2784-7-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/2784-1-0x00000000005D0000-0x00000000006D0000-memory.dmp

Filesize
1024KB

Download