tofsee | 63137cdddc2ff91ad9e6cb6a984f4f7c603d9ba3d9a8d53a84ef480beb8d806d

Analysis

max time kernel
145s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
21-01-2025 23:21

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2025-01-21_de2d2486fa030da748bd90749b55beea_mafia.exe
Size

13.6MB
MD5

de2d2486fa030da748bd90749b55beea
SHA1

d439a2be1ec1b9aa7b21c37c0bf79d41c7e82794
SHA256

63137cdddc2ff91ad9e6cb6a984f4f7c603d9ba3d9a8d53a84ef480beb8d806d
SHA512

acf15f48ace4f71173ec7a03a6e80103eefed529709e6144cc0ce3f58b3ed7e601744e1af6bb27e235d9d53d69ca55cf60a6fbb2f37121bcf5442fc6d50173e9
SSDEEP

24576:upomTTN9tttttttttttttttttttttttttttttttttttttttttttttttttttttttf:Coo

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\aqcpfjoy = "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
2744	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\aqcpfjoy\ImagePath = "C:\\Windows\\SysWOW64\\aqcpfjoy\\bdwhowka.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2728	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2844	bdwhowka.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2844 set thread context of 2728	2844	bdwhowka.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2232	sc.exe
2260	sc.exe
2712	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	2025-01-21_de2d2486fa030da748bd90749b55beea_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	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	bdwhowka.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2120 wrote to memory of 2476	2120	2025-01-21_de2d2486fa030da748bd90749b55beea_mafia.exe	30
PID 2120 wrote to memory of 2476	2120	2025-01-21_de2d2486fa030da748bd90749b55beea_mafia.exe	30
PID 2120 wrote to memory of 2476	2120	2025-01-21_de2d2486fa030da748bd90749b55beea_mafia.exe	30
PID 2120 wrote to memory of 2476	2120	2025-01-21_de2d2486fa030da748bd90749b55beea_mafia.exe	30
PID 2120 wrote to memory of 2376	2120	2025-01-21_de2d2486fa030da748bd90749b55beea_mafia.exe	32
PID 2120 wrote to memory of 2376	2120	2025-01-21_de2d2486fa030da748bd90749b55beea_mafia.exe	32
PID 2120 wrote to memory of 2376	2120	2025-01-21_de2d2486fa030da748bd90749b55beea_mafia.exe	32
PID 2120 wrote to memory of 2376	2120	2025-01-21_de2d2486fa030da748bd90749b55beea_mafia.exe	32
PID 2120 wrote to memory of 2232	2120	2025-01-21_de2d2486fa030da748bd90749b55beea_mafia.exe	34
PID 2120 wrote to memory of 2232	2120	2025-01-21_de2d2486fa030da748bd90749b55beea_mafia.exe	34
PID 2120 wrote to memory of 2232	2120	2025-01-21_de2d2486fa030da748bd90749b55beea_mafia.exe	34
PID 2120 wrote to memory of 2232	2120	2025-01-21_de2d2486fa030da748bd90749b55beea_mafia.exe	34
PID 2120 wrote to memory of 2260	2120	2025-01-21_de2d2486fa030da748bd90749b55beea_mafia.exe	36
PID 2120 wrote to memory of 2260	2120	2025-01-21_de2d2486fa030da748bd90749b55beea_mafia.exe	36
PID 2120 wrote to memory of 2260	2120	2025-01-21_de2d2486fa030da748bd90749b55beea_mafia.exe	36
PID 2120 wrote to memory of 2260	2120	2025-01-21_de2d2486fa030da748bd90749b55beea_mafia.exe	36
PID 2120 wrote to memory of 2712	2120	2025-01-21_de2d2486fa030da748bd90749b55beea_mafia.exe	38
PID 2120 wrote to memory of 2712	2120	2025-01-21_de2d2486fa030da748bd90749b55beea_mafia.exe	38
PID 2120 wrote to memory of 2712	2120	2025-01-21_de2d2486fa030da748bd90749b55beea_mafia.exe	38
PID 2120 wrote to memory of 2712	2120	2025-01-21_de2d2486fa030da748bd90749b55beea_mafia.exe	38
PID 2844 wrote to memory of 2728	2844	bdwhowka.exe	41
PID 2844 wrote to memory of 2728	2844	bdwhowka.exe	41
PID 2844 wrote to memory of 2728	2844	bdwhowka.exe	41
PID 2844 wrote to memory of 2728	2844	bdwhowka.exe	41
PID 2844 wrote to memory of 2728	2844	bdwhowka.exe	41
PID 2844 wrote to memory of 2728	2844	bdwhowka.exe	41
PID 2120 wrote to memory of 2744	2120	2025-01-21_de2d2486fa030da748bd90749b55beea_mafia.exe	42
PID 2120 wrote to memory of 2744	2120	2025-01-21_de2d2486fa030da748bd90749b55beea_mafia.exe	42
PID 2120 wrote to memory of 2744	2120	2025-01-21_de2d2486fa030da748bd90749b55beea_mafia.exe	42
PID 2120 wrote to memory of 2744	2120	2025-01-21_de2d2486fa030da748bd90749b55beea_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-01-21_de2d2486fa030da748bd90749b55beea_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-21_de2d2486fa030da748bd90749b55beea_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2120
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\aqcpfjoy\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2476
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\bdwhowka.exe" C:\Windows\SysWOW64\aqcpfjoy\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2376
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create aqcpfjoy binPath= "C:\Windows\SysWOW64\aqcpfjoy\bdwhowka.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-21_de2d2486fa030da748bd90749b55beea_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2232
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description aqcpfjoy "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2260
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start aqcpfjoy
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2712
- 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:2744

C:\Windows\SysWOW64\aqcpfjoy\bdwhowka.exe
C:\Windows\SysWOW64\aqcpfjoy\bdwhowka.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-21_de2d2486fa030da748bd90749b55beea_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2844
- 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:2728

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\bdwhowka.exe

Filesize
10.6MB

MD5
4e54b032b0e29f95392df81f3cf86bdb

SHA1
b50b5080461a0d173dd5a5e24e09ef34fd62b5d1

SHA256
1ce7ff5421cf72e5d7a086932b66c09a3a5f36b7c832812fef73b7437e999c05

SHA512
6016a598869874f62f7499906545d65997c6d473b97e5a5bc66c1128d61671bdc4958d80c08d4be2f989869641f7ed2a9a236542b0e9ca8a843729bca3650307

Download Submit
memory/2120-1-0x00000000005F0000-0x00000000006F0000-memory.dmp

Filesize
1024KB

Download
memory/2120-3-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2120-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2120-15-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2120-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2728-11-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/2728-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2728-8-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/2728-17-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/2728-18-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/2844-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads