tofsee | 141db036f2473f2aad6ec65e11a5d236404a2a6901f45a7b51fca1fd9ccaa352

Analysis

max time kernel
144s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
26-01-2025 18:25

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General

Target

2025-01-26_1a0409d9ccf8445c0679060efe550d30_mafia.exe
Size

11.2MB
MD5

1a0409d9ccf8445c0679060efe550d30
SHA1

2aabbbde2e3e1d6f42d6387243a60737ba164222
SHA256

141db036f2473f2aad6ec65e11a5d236404a2a6901f45a7b51fca1fd9ccaa352
SHA512

2c8e95ea2777865b937f70ece6830056db7b5c240b6143f8dc0db9b51413a1e88e0e29563e123c542f9620d1c065c9d3da0d1ea564a896bef3446c538ab806e1
SSDEEP

6144:0LQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQ9:pTYe+D2jFu+iZoUFhAz

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\xwcowmnl = "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
1408	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\xwcowmnl\ImagePath = "C:\\Windows\\SysWOW64\\xwcowmnl\\aixbomvv.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2620	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2724	aixbomvv.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2724 set thread context of 2620	2724	aixbomvv.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2676	sc.exe
2552	sc.exe
1164	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	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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-26_1a0409d9ccf8445c0679060efe550d30_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	aixbomvv.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1892 wrote to memory of 1856	1892	2025-01-26_1a0409d9ccf8445c0679060efe550d30_mafia.exe	31
PID 1892 wrote to memory of 1856	1892	2025-01-26_1a0409d9ccf8445c0679060efe550d30_mafia.exe	31
PID 1892 wrote to memory of 1856	1892	2025-01-26_1a0409d9ccf8445c0679060efe550d30_mafia.exe	31
PID 1892 wrote to memory of 1856	1892	2025-01-26_1a0409d9ccf8445c0679060efe550d30_mafia.exe	31
PID 1892 wrote to memory of 2832	1892	2025-01-26_1a0409d9ccf8445c0679060efe550d30_mafia.exe	33
PID 1892 wrote to memory of 2832	1892	2025-01-26_1a0409d9ccf8445c0679060efe550d30_mafia.exe	33
PID 1892 wrote to memory of 2832	1892	2025-01-26_1a0409d9ccf8445c0679060efe550d30_mafia.exe	33
PID 1892 wrote to memory of 2832	1892	2025-01-26_1a0409d9ccf8445c0679060efe550d30_mafia.exe	33
PID 1892 wrote to memory of 2676	1892	2025-01-26_1a0409d9ccf8445c0679060efe550d30_mafia.exe	35
PID 1892 wrote to memory of 2676	1892	2025-01-26_1a0409d9ccf8445c0679060efe550d30_mafia.exe	35
PID 1892 wrote to memory of 2676	1892	2025-01-26_1a0409d9ccf8445c0679060efe550d30_mafia.exe	35
PID 1892 wrote to memory of 2676	1892	2025-01-26_1a0409d9ccf8445c0679060efe550d30_mafia.exe	35
PID 1892 wrote to memory of 2552	1892	2025-01-26_1a0409d9ccf8445c0679060efe550d30_mafia.exe	37
PID 1892 wrote to memory of 2552	1892	2025-01-26_1a0409d9ccf8445c0679060efe550d30_mafia.exe	37
PID 1892 wrote to memory of 2552	1892	2025-01-26_1a0409d9ccf8445c0679060efe550d30_mafia.exe	37
PID 1892 wrote to memory of 2552	1892	2025-01-26_1a0409d9ccf8445c0679060efe550d30_mafia.exe	37
PID 1892 wrote to memory of 1164	1892	2025-01-26_1a0409d9ccf8445c0679060efe550d30_mafia.exe	39
PID 1892 wrote to memory of 1164	1892	2025-01-26_1a0409d9ccf8445c0679060efe550d30_mafia.exe	39
PID 1892 wrote to memory of 1164	1892	2025-01-26_1a0409d9ccf8445c0679060efe550d30_mafia.exe	39
PID 1892 wrote to memory of 1164	1892	2025-01-26_1a0409d9ccf8445c0679060efe550d30_mafia.exe	39
PID 1892 wrote to memory of 1408	1892	2025-01-26_1a0409d9ccf8445c0679060efe550d30_mafia.exe	42
PID 1892 wrote to memory of 1408	1892	2025-01-26_1a0409d9ccf8445c0679060efe550d30_mafia.exe	42
PID 1892 wrote to memory of 1408	1892	2025-01-26_1a0409d9ccf8445c0679060efe550d30_mafia.exe	42
PID 1892 wrote to memory of 1408	1892	2025-01-26_1a0409d9ccf8445c0679060efe550d30_mafia.exe	42
PID 2724 wrote to memory of 2620	2724	aixbomvv.exe	44
PID 2724 wrote to memory of 2620	2724	aixbomvv.exe	44
PID 2724 wrote to memory of 2620	2724	aixbomvv.exe	44
PID 2724 wrote to memory of 2620	2724	aixbomvv.exe	44
PID 2724 wrote to memory of 2620	2724	aixbomvv.exe	44
PID 2724 wrote to memory of 2620	2724	aixbomvv.exe	44

C:\Users\Admin\AppData\Local\Temp\2025-01-26_1a0409d9ccf8445c0679060efe550d30_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-26_1a0409d9ccf8445c0679060efe550d30_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1892
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xwcowmnl\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1856
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\aixbomvv.exe" C:\Windows\SysWOW64\xwcowmnl\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2832
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create xwcowmnl binPath= "C:\Windows\SysWOW64\xwcowmnl\aixbomvv.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-26_1a0409d9ccf8445c0679060efe550d30_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2676
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description xwcowmnl "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2552
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start xwcowmnl
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1164
- 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:1408

C:\Windows\SysWOW64\xwcowmnl\aixbomvv.exe
C:\Windows\SysWOW64\xwcowmnl\aixbomvv.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-26_1a0409d9ccf8445c0679060efe550d30_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2724
- 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:2620

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\aixbomvv.exe

Filesize
10.4MB

MD5
4c5491b9fee7b71f9ed4eedd1ae70e9f

SHA1
1fb82255d4fb203162786104b6b37a34f5d82d91

SHA256
5c0a55f3fa3176055dcf13bb6f945dfab19b8385b0112980d3d34363bf07d78f

SHA512
c1dc45bf45c24b1f9864d6e5e8220285486d52cdf1bfa9ab2923c61d49e76764fab9fe372c680ff160bd5a22b3fa5767f34e13efade5db1925b9cb1f8dd1b363

Download Submit
memory/1892-1-0x00000000005C0000-0x00000000006C0000-memory.dmp

Filesize
1024KB

Download
memory/1892-3-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/1892-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1892-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1892-8-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2620-16-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/2620-14-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/2620-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2620-11-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/2620-18-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/2724-17-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads