tofsee | 4f132c042659b37ff3aaf4866e2c62eb014feece0887c8818f5f05c8bcb33f24

Analysis

max time kernel
142s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
15-01-2025 18:45

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General

Target

2025-01-15_7d495508a5b3f25d13551f894b2eeada_mafia.exe
Size

12.7MB
MD5

7d495508a5b3f25d13551f894b2eeada
SHA1

68ed778b9b691967ab81634caeb62fce9eda70a1
SHA256

4f132c042659b37ff3aaf4866e2c62eb014feece0887c8818f5f05c8bcb33f24
SHA512

05088855ff1b835c55949d5a511e4a030436d1ea3a87e7ac4c86b1f4a818c58c8f6fe051cc0924bee8451cb11f65a6e0ce8f060c59af01fc68b7feb559b3ac98
SSDEEP

24576:ApomTTN9ttttttttttttttttttttttttttttttttttttttttttttttttttttttt/:Moo

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

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

pid	Process
2768	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\zbwcxhqy\ImagePath = "C:\\Windows\\SysWOW64\\zbwcxhqy\\tvqwpcm.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
3044	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2084	tvqwpcm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2084 set thread context of 3044	2084	tvqwpcm.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2548	sc.exe
2576	sc.exe
2024	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	tvqwpcm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-15_7d495508a5b3f25d13551f894b2eeada_mafia.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	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 2280 wrote to memory of 2772	2280	2025-01-15_7d495508a5b3f25d13551f894b2eeada_mafia.exe	30
PID 2280 wrote to memory of 2772	2280	2025-01-15_7d495508a5b3f25d13551f894b2eeada_mafia.exe	30
PID 2280 wrote to memory of 2772	2280	2025-01-15_7d495508a5b3f25d13551f894b2eeada_mafia.exe	30
PID 2280 wrote to memory of 2772	2280	2025-01-15_7d495508a5b3f25d13551f894b2eeada_mafia.exe	30
PID 2280 wrote to memory of 2652	2280	2025-01-15_7d495508a5b3f25d13551f894b2eeada_mafia.exe	32
PID 2280 wrote to memory of 2652	2280	2025-01-15_7d495508a5b3f25d13551f894b2eeada_mafia.exe	32
PID 2280 wrote to memory of 2652	2280	2025-01-15_7d495508a5b3f25d13551f894b2eeada_mafia.exe	32
PID 2280 wrote to memory of 2652	2280	2025-01-15_7d495508a5b3f25d13551f894b2eeada_mafia.exe	32
PID 2280 wrote to memory of 2548	2280	2025-01-15_7d495508a5b3f25d13551f894b2eeada_mafia.exe	34
PID 2280 wrote to memory of 2548	2280	2025-01-15_7d495508a5b3f25d13551f894b2eeada_mafia.exe	34
PID 2280 wrote to memory of 2548	2280	2025-01-15_7d495508a5b3f25d13551f894b2eeada_mafia.exe	34
PID 2280 wrote to memory of 2548	2280	2025-01-15_7d495508a5b3f25d13551f894b2eeada_mafia.exe	34
PID 2280 wrote to memory of 2576	2280	2025-01-15_7d495508a5b3f25d13551f894b2eeada_mafia.exe	36
PID 2280 wrote to memory of 2576	2280	2025-01-15_7d495508a5b3f25d13551f894b2eeada_mafia.exe	36
PID 2280 wrote to memory of 2576	2280	2025-01-15_7d495508a5b3f25d13551f894b2eeada_mafia.exe	36
PID 2280 wrote to memory of 2576	2280	2025-01-15_7d495508a5b3f25d13551f894b2eeada_mafia.exe	36
PID 2280 wrote to memory of 2024	2280	2025-01-15_7d495508a5b3f25d13551f894b2eeada_mafia.exe	38
PID 2280 wrote to memory of 2024	2280	2025-01-15_7d495508a5b3f25d13551f894b2eeada_mafia.exe	38
PID 2280 wrote to memory of 2024	2280	2025-01-15_7d495508a5b3f25d13551f894b2eeada_mafia.exe	38
PID 2280 wrote to memory of 2024	2280	2025-01-15_7d495508a5b3f25d13551f894b2eeada_mafia.exe	38
PID 2280 wrote to memory of 2768	2280	2025-01-15_7d495508a5b3f25d13551f894b2eeada_mafia.exe	41
PID 2280 wrote to memory of 2768	2280	2025-01-15_7d495508a5b3f25d13551f894b2eeada_mafia.exe	41
PID 2280 wrote to memory of 2768	2280	2025-01-15_7d495508a5b3f25d13551f894b2eeada_mafia.exe	41
PID 2280 wrote to memory of 2768	2280	2025-01-15_7d495508a5b3f25d13551f894b2eeada_mafia.exe	41
PID 2084 wrote to memory of 3044	2084	tvqwpcm.exe	43
PID 2084 wrote to memory of 3044	2084	tvqwpcm.exe	43
PID 2084 wrote to memory of 3044	2084	tvqwpcm.exe	43
PID 2084 wrote to memory of 3044	2084	tvqwpcm.exe	43
PID 2084 wrote to memory of 3044	2084	tvqwpcm.exe	43
PID 2084 wrote to memory of 3044	2084	tvqwpcm.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-01-15_7d495508a5b3f25d13551f894b2eeada_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-15_7d495508a5b3f25d13551f894b2eeada_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2280
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zbwcxhqy\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2772
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tvqwpcm.exe" C:\Windows\SysWOW64\zbwcxhqy\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2652
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create zbwcxhqy binPath= "C:\Windows\SysWOW64\zbwcxhqy\tvqwpcm.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-15_7d495508a5b3f25d13551f894b2eeada_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2548
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description zbwcxhqy "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2576
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start zbwcxhqy
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2024
- 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:2768

C:\Windows\SysWOW64\zbwcxhqy\tvqwpcm.exe
C:\Windows\SysWOW64\zbwcxhqy\tvqwpcm.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-15_7d495508a5b3f25d13551f894b2eeada_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2084
- 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:3044

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\tvqwpcm.exe

Filesize
13.2MB

MD5
a04671391984e16b1b40ed8d9431594a

SHA1
85fff4f38ba09c08365a1a30f5b871475ed4d423

SHA256
e0c28c724132e69830d29c9ad2aad29249965a040761ce7c527a73e9e2e8bee6

SHA512
e6ffc536ab8483a96dbf5841be8329a6bc75254c7dd0c9c234d74e6afcfa50598c56d0ff02afc71aa5a342da16889c80bb5ef85e44b1769fffb069a24231c13c

Download Submit
memory/2084-17-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2280-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2280-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2280-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2280-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2280-1-0x00000000004F0000-0x00000000005F0000-memory.dmp

Filesize
1024KB

Download
memory/2280-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/3044-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3044-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3044-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3044-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3044-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads