tofsee | 66f669015d25d10933e57ad3605fed3c082c466e0851900a0c130d16b0ae6a4a

Analysis

max time kernel
144s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22-01-2025 20:10

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General

Target

2025-01-22_e4f89850577cb7f0f8d29febdb8ac5b8_mafia.exe
Size

13.7MB
MD5

e4f89850577cb7f0f8d29febdb8ac5b8
SHA1

661eb50b70b7665fb03418e2d60f6546cda2c1a4
SHA256

66f669015d25d10933e57ad3605fed3c082c466e0851900a0c130d16b0ae6a4a
SHA512

43f326ea6551b61551eb88495ae96ad5ba5a6dcc5f54059721b2393dbeb656c4006b2c8d252712f43c16b60b51111c9d6a768941095ff395f5ad4420b042079d
SSDEEP

6144:fLQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQg:ETYe+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\fbvktcmt = "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
2196	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\fbvktcmt\ImagePath = "C:\\Windows\\SysWOW64\\fbvktcmt\\kbjhrmth.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2592	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2112	kbjhrmth.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2112 set thread context of 2592	2112	kbjhrmth.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2604	sc.exe
1992	sc.exe
2696	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\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	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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-22_e4f89850577cb7f0f8d29febdb8ac5b8_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	kbjhrmth.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1856 wrote to memory of 2820	1856	2025-01-22_e4f89850577cb7f0f8d29febdb8ac5b8_mafia.exe	30
PID 1856 wrote to memory of 2820	1856	2025-01-22_e4f89850577cb7f0f8d29febdb8ac5b8_mafia.exe	30
PID 1856 wrote to memory of 2820	1856	2025-01-22_e4f89850577cb7f0f8d29febdb8ac5b8_mafia.exe	30
PID 1856 wrote to memory of 2820	1856	2025-01-22_e4f89850577cb7f0f8d29febdb8ac5b8_mafia.exe	30
PID 1856 wrote to memory of 2736	1856	2025-01-22_e4f89850577cb7f0f8d29febdb8ac5b8_mafia.exe	32
PID 1856 wrote to memory of 2736	1856	2025-01-22_e4f89850577cb7f0f8d29febdb8ac5b8_mafia.exe	32
PID 1856 wrote to memory of 2736	1856	2025-01-22_e4f89850577cb7f0f8d29febdb8ac5b8_mafia.exe	32
PID 1856 wrote to memory of 2736	1856	2025-01-22_e4f89850577cb7f0f8d29febdb8ac5b8_mafia.exe	32
PID 1856 wrote to memory of 2696	1856	2025-01-22_e4f89850577cb7f0f8d29febdb8ac5b8_mafia.exe	34
PID 1856 wrote to memory of 2696	1856	2025-01-22_e4f89850577cb7f0f8d29febdb8ac5b8_mafia.exe	34
PID 1856 wrote to memory of 2696	1856	2025-01-22_e4f89850577cb7f0f8d29febdb8ac5b8_mafia.exe	34
PID 1856 wrote to memory of 2696	1856	2025-01-22_e4f89850577cb7f0f8d29febdb8ac5b8_mafia.exe	34
PID 1856 wrote to memory of 2604	1856	2025-01-22_e4f89850577cb7f0f8d29febdb8ac5b8_mafia.exe	36
PID 1856 wrote to memory of 2604	1856	2025-01-22_e4f89850577cb7f0f8d29febdb8ac5b8_mafia.exe	36
PID 1856 wrote to memory of 2604	1856	2025-01-22_e4f89850577cb7f0f8d29febdb8ac5b8_mafia.exe	36
PID 1856 wrote to memory of 2604	1856	2025-01-22_e4f89850577cb7f0f8d29febdb8ac5b8_mafia.exe	36
PID 1856 wrote to memory of 1992	1856	2025-01-22_e4f89850577cb7f0f8d29febdb8ac5b8_mafia.exe	38
PID 1856 wrote to memory of 1992	1856	2025-01-22_e4f89850577cb7f0f8d29febdb8ac5b8_mafia.exe	38
PID 1856 wrote to memory of 1992	1856	2025-01-22_e4f89850577cb7f0f8d29febdb8ac5b8_mafia.exe	38
PID 1856 wrote to memory of 1992	1856	2025-01-22_e4f89850577cb7f0f8d29febdb8ac5b8_mafia.exe	38
PID 2112 wrote to memory of 2592	2112	kbjhrmth.exe	41
PID 2112 wrote to memory of 2592	2112	kbjhrmth.exe	41
PID 2112 wrote to memory of 2592	2112	kbjhrmth.exe	41
PID 2112 wrote to memory of 2592	2112	kbjhrmth.exe	41
PID 2112 wrote to memory of 2592	2112	kbjhrmth.exe	41
PID 2112 wrote to memory of 2592	2112	kbjhrmth.exe	41
PID 1856 wrote to memory of 2196	1856	2025-01-22_e4f89850577cb7f0f8d29febdb8ac5b8_mafia.exe	42
PID 1856 wrote to memory of 2196	1856	2025-01-22_e4f89850577cb7f0f8d29febdb8ac5b8_mafia.exe	42
PID 1856 wrote to memory of 2196	1856	2025-01-22_e4f89850577cb7f0f8d29febdb8ac5b8_mafia.exe	42
PID 1856 wrote to memory of 2196	1856	2025-01-22_e4f89850577cb7f0f8d29febdb8ac5b8_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-01-22_e4f89850577cb7f0f8d29febdb8ac5b8_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-22_e4f89850577cb7f0f8d29febdb8ac5b8_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1856
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\fbvktcmt\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2820
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kbjhrmth.exe" C:\Windows\SysWOW64\fbvktcmt\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2736
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create fbvktcmt binPath= "C:\Windows\SysWOW64\fbvktcmt\kbjhrmth.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-22_e4f89850577cb7f0f8d29febdb8ac5b8_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2696
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description fbvktcmt "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2604
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start fbvktcmt
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1992
- 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:2196

C:\Windows\SysWOW64\fbvktcmt\kbjhrmth.exe
C:\Windows\SysWOW64\fbvktcmt\kbjhrmth.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-22_e4f89850577cb7f0f8d29febdb8ac5b8_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2112
- 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:2592

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\kbjhrmth.exe

Filesize
11.2MB

MD5
fd1b294fcddb2a8e39777484cef63ad9

SHA1
cd44bce96ca8eb75a006ca9c182730103b881328

SHA256
2c17ce577570e6f4c1ee0b5214fbaa0259955182e74cf9b6a109452c506f0961

SHA512
e6cd7fa35c0fd22c1df3cbe930b3a063be85efd35ec99df906aaa8c030752e3fea34b5f636638be3f48ddaa18ca310e99ea7fb5143e803d89d1eda392bf0dc13

Download Submit
memory/1856-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1856-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1856-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1856-14-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/1856-1-0x0000000000590000-0x0000000000690000-memory.dmp

Filesize
1024KB

Download
memory/1856-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2112-13-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2592-8-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2592-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2592-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2592-17-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2592-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads