tofsee | 52e2c2485a493bbff724c2b84fff5f827c3a44692fa77ed4fb585d6fca9e6f2b

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
25-01-2025 18:54

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General

Target

2025-01-25_b15b8103c063ce7a8849f6cc6d196789_mafia.exe
Size

12.3MB
MD5

b15b8103c063ce7a8849f6cc6d196789
SHA1

9a8519bc5fd5b45e88b354ca47a5405e1b54700c
SHA256

52e2c2485a493bbff724c2b84fff5f827c3a44692fa77ed4fb585d6fca9e6f2b
SHA512

48f579b4844f45ba066b64aa542a40e5abdb0b9ce5ee8c94ac4d5c2942391ca0a021aa6cf6bd3a04da260a6c3a6c3baa2f903043127b72860fb2af634d9d0487
SSDEEP

24576:R6WdLQkyQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQ3:4WdLQk

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\lherwkai = "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
476	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\lherwkai\ImagePath = "C:\\Windows\\SysWOW64\\lherwkai\\hcgyozbz.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2892	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2660	hcgyozbz.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2660 set thread context of 2892	2660	hcgyozbz.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
3020	sc.exe
2644	sc.exe
1244	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	hcgyozbz.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-25_b15b8103c063ce7a8849f6cc6d196789_mafia.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2840 wrote to memory of 2816	2840	2025-01-25_b15b8103c063ce7a8849f6cc6d196789_mafia.exe	30
PID 2840 wrote to memory of 2816	2840	2025-01-25_b15b8103c063ce7a8849f6cc6d196789_mafia.exe	30
PID 2840 wrote to memory of 2816	2840	2025-01-25_b15b8103c063ce7a8849f6cc6d196789_mafia.exe	30
PID 2840 wrote to memory of 2816	2840	2025-01-25_b15b8103c063ce7a8849f6cc6d196789_mafia.exe	30
PID 2840 wrote to memory of 2748	2840	2025-01-25_b15b8103c063ce7a8849f6cc6d196789_mafia.exe	32
PID 2840 wrote to memory of 2748	2840	2025-01-25_b15b8103c063ce7a8849f6cc6d196789_mafia.exe	32
PID 2840 wrote to memory of 2748	2840	2025-01-25_b15b8103c063ce7a8849f6cc6d196789_mafia.exe	32
PID 2840 wrote to memory of 2748	2840	2025-01-25_b15b8103c063ce7a8849f6cc6d196789_mafia.exe	32
PID 2840 wrote to memory of 3020	2840	2025-01-25_b15b8103c063ce7a8849f6cc6d196789_mafia.exe	34
PID 2840 wrote to memory of 3020	2840	2025-01-25_b15b8103c063ce7a8849f6cc6d196789_mafia.exe	34
PID 2840 wrote to memory of 3020	2840	2025-01-25_b15b8103c063ce7a8849f6cc6d196789_mafia.exe	34
PID 2840 wrote to memory of 3020	2840	2025-01-25_b15b8103c063ce7a8849f6cc6d196789_mafia.exe	34
PID 2840 wrote to memory of 2644	2840	2025-01-25_b15b8103c063ce7a8849f6cc6d196789_mafia.exe	36
PID 2840 wrote to memory of 2644	2840	2025-01-25_b15b8103c063ce7a8849f6cc6d196789_mafia.exe	36
PID 2840 wrote to memory of 2644	2840	2025-01-25_b15b8103c063ce7a8849f6cc6d196789_mafia.exe	36
PID 2840 wrote to memory of 2644	2840	2025-01-25_b15b8103c063ce7a8849f6cc6d196789_mafia.exe	36
PID 2840 wrote to memory of 1244	2840	2025-01-25_b15b8103c063ce7a8849f6cc6d196789_mafia.exe	38
PID 2840 wrote to memory of 1244	2840	2025-01-25_b15b8103c063ce7a8849f6cc6d196789_mafia.exe	38
PID 2840 wrote to memory of 1244	2840	2025-01-25_b15b8103c063ce7a8849f6cc6d196789_mafia.exe	38
PID 2840 wrote to memory of 1244	2840	2025-01-25_b15b8103c063ce7a8849f6cc6d196789_mafia.exe	38
PID 2660 wrote to memory of 2892	2660	hcgyozbz.exe	41
PID 2660 wrote to memory of 2892	2660	hcgyozbz.exe	41
PID 2660 wrote to memory of 2892	2660	hcgyozbz.exe	41
PID 2660 wrote to memory of 2892	2660	hcgyozbz.exe	41
PID 2660 wrote to memory of 2892	2660	hcgyozbz.exe	41
PID 2660 wrote to memory of 2892	2660	hcgyozbz.exe	41
PID 2840 wrote to memory of 476	2840	2025-01-25_b15b8103c063ce7a8849f6cc6d196789_mafia.exe	42
PID 2840 wrote to memory of 476	2840	2025-01-25_b15b8103c063ce7a8849f6cc6d196789_mafia.exe	42
PID 2840 wrote to memory of 476	2840	2025-01-25_b15b8103c063ce7a8849f6cc6d196789_mafia.exe	42
PID 2840 wrote to memory of 476	2840	2025-01-25_b15b8103c063ce7a8849f6cc6d196789_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-01-25_b15b8103c063ce7a8849f6cc6d196789_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-25_b15b8103c063ce7a8849f6cc6d196789_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2840
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\lherwkai\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2816
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\hcgyozbz.exe" C:\Windows\SysWOW64\lherwkai\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2748
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create lherwkai binPath= "C:\Windows\SysWOW64\lherwkai\hcgyozbz.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-25_b15b8103c063ce7a8849f6cc6d196789_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3020
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description lherwkai "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2644
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start lherwkai
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1244
- 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:476

C:\Windows\SysWOW64\lherwkai\hcgyozbz.exe
C:\Windows\SysWOW64\lherwkai\hcgyozbz.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-25_b15b8103c063ce7a8849f6cc6d196789_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2660
- 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:2892

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\hcgyozbz.exe

Filesize
12.7MB

MD5
f68c898695d5094b13578e3d15eb6eb4

SHA1
b1ca853ccb51501f6591317b041731de327f2c1a

SHA256
78e9135ecef42c90f68de15c57966bb5a91ab74cbf3996b80682e89547a22955

SHA512
80e230e0484a74966023196fb9a5d065f651fe3f84e7a29c460994c3c07b7627e419b5ca2689c95bd0797c096cd55ad0f4330b28b6db7b1a5d0674a048b5c977

Download Submit
memory/2660-12-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2840-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2840-3-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2840-1-0x0000000000250000-0x0000000000350000-memory.dmp

Filesize
1024KB

Download
memory/2840-14-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2840-15-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2892-11-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/2892-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2892-8-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/2892-16-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/2892-17-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads