tofsee | c93420c70f0c8ca7fad76927b1778ff0fb81a7842d92142e7c7b758a5ca3b949

Analysis

max time kernel
145s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
01/02/2025, 03:38

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General

Target

2025-02-01_4b43e57843fa80f40d79329c531257dd_mafia.exe
Size

11.7MB
MD5

4b43e57843fa80f40d79329c531257dd
SHA1

2765b8a75a839da5c73b04c48343117e04c4fc83
SHA256

c93420c70f0c8ca7fad76927b1778ff0fb81a7842d92142e7c7b758a5ca3b949
SHA512

6bc7f735ed9d19c39369c9565b7b2c398fc6e6e24dcf986c7591bcbe755fe9fd380a869af664c41419cead83e63dbf2637beebc855b606594adeac43e4553346
SSDEEP

49152:0qE0YKr3fYPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPz:0qtYc3c

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\hjpylgge = "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
2612	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\hjpylgge\ImagePath = "C:\\Windows\\SysWOW64\\hjpylgge\\xtllixwk.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2704	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2680	xtllixwk.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2680 set thread context of 2704	2680	xtllixwk.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2276	sc.exe
2720	sc.exe
2836	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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-01_4b43e57843fa80f40d79329c531257dd_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	xtllixwk.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

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2368 wrote to memory of 2328	2368	2025-02-01_4b43e57843fa80f40d79329c531257dd_mafia.exe	30
PID 2368 wrote to memory of 2328	2368	2025-02-01_4b43e57843fa80f40d79329c531257dd_mafia.exe	30
PID 2368 wrote to memory of 2328	2368	2025-02-01_4b43e57843fa80f40d79329c531257dd_mafia.exe	30
PID 2368 wrote to memory of 2328	2368	2025-02-01_4b43e57843fa80f40d79329c531257dd_mafia.exe	30
PID 2368 wrote to memory of 2860	2368	2025-02-01_4b43e57843fa80f40d79329c531257dd_mafia.exe	32
PID 2368 wrote to memory of 2860	2368	2025-02-01_4b43e57843fa80f40d79329c531257dd_mafia.exe	32
PID 2368 wrote to memory of 2860	2368	2025-02-01_4b43e57843fa80f40d79329c531257dd_mafia.exe	32
PID 2368 wrote to memory of 2860	2368	2025-02-01_4b43e57843fa80f40d79329c531257dd_mafia.exe	32
PID 2368 wrote to memory of 2276	2368	2025-02-01_4b43e57843fa80f40d79329c531257dd_mafia.exe	34
PID 2368 wrote to memory of 2276	2368	2025-02-01_4b43e57843fa80f40d79329c531257dd_mafia.exe	34
PID 2368 wrote to memory of 2276	2368	2025-02-01_4b43e57843fa80f40d79329c531257dd_mafia.exe	34
PID 2368 wrote to memory of 2276	2368	2025-02-01_4b43e57843fa80f40d79329c531257dd_mafia.exe	34
PID 2368 wrote to memory of 2720	2368	2025-02-01_4b43e57843fa80f40d79329c531257dd_mafia.exe	37
PID 2368 wrote to memory of 2720	2368	2025-02-01_4b43e57843fa80f40d79329c531257dd_mafia.exe	37
PID 2368 wrote to memory of 2720	2368	2025-02-01_4b43e57843fa80f40d79329c531257dd_mafia.exe	37
PID 2368 wrote to memory of 2720	2368	2025-02-01_4b43e57843fa80f40d79329c531257dd_mafia.exe	37
PID 2368 wrote to memory of 2836	2368	2025-02-01_4b43e57843fa80f40d79329c531257dd_mafia.exe	39
PID 2368 wrote to memory of 2836	2368	2025-02-01_4b43e57843fa80f40d79329c531257dd_mafia.exe	39
PID 2368 wrote to memory of 2836	2368	2025-02-01_4b43e57843fa80f40d79329c531257dd_mafia.exe	39
PID 2368 wrote to memory of 2836	2368	2025-02-01_4b43e57843fa80f40d79329c531257dd_mafia.exe	39
PID 2680 wrote to memory of 2704	2680	xtllixwk.exe	42
PID 2680 wrote to memory of 2704	2680	xtllixwk.exe	42
PID 2680 wrote to memory of 2704	2680	xtllixwk.exe	42
PID 2680 wrote to memory of 2704	2680	xtllixwk.exe	42
PID 2680 wrote to memory of 2704	2680	xtllixwk.exe	42
PID 2680 wrote to memory of 2704	2680	xtllixwk.exe	42
PID 2368 wrote to memory of 2612	2368	2025-02-01_4b43e57843fa80f40d79329c531257dd_mafia.exe	43
PID 2368 wrote to memory of 2612	2368	2025-02-01_4b43e57843fa80f40d79329c531257dd_mafia.exe	43
PID 2368 wrote to memory of 2612	2368	2025-02-01_4b43e57843fa80f40d79329c531257dd_mafia.exe	43
PID 2368 wrote to memory of 2612	2368	2025-02-01_4b43e57843fa80f40d79329c531257dd_mafia.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-02-01_4b43e57843fa80f40d79329c531257dd_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-01_4b43e57843fa80f40d79329c531257dd_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2368
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\hjpylgge\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2328
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\xtllixwk.exe" C:\Windows\SysWOW64\hjpylgge\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2860
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create hjpylgge binPath= "C:\Windows\SysWOW64\hjpylgge\xtllixwk.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-01_4b43e57843fa80f40d79329c531257dd_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2276
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description hjpylgge "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2720
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start hjpylgge
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2836
- 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:2612

C:\Windows\SysWOW64\hjpylgge\xtllixwk.exe
C:\Windows\SysWOW64\hjpylgge\xtllixwk.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-01_4b43e57843fa80f40d79329c531257dd_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2680
- 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:2704

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\xtllixwk.exe

Filesize
12.2MB

MD5
141bea6130ec5e2c983d8b9c18276e9d

SHA1
ff7b3536e7515cbf29b3f5cddf04114c29e2a76d

SHA256
ee6bcc7fff3777e6659e577b642bd719361ed2d9589648432e6721cd405bbc1a

SHA512
fd75b9ba845ec6549cea8ab27df3f4219940039e7d568447ebeeb280fe0ec70c11210f14542fe83fddd37db80b5d03b4d26e2d8b9bb010113e64ed83646e2ba9

Download Submit
memory/2368-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2368-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2368-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2368-14-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/2368-1-0x0000000002EA0000-0x0000000002FA0000-memory.dmp

Filesize
1024KB

Download
memory/2368-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2680-13-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/2704-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2704-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2704-8-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2704-17-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2704-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads