tofsee | a8786e809db0f73eb45a3751cc5adeed5a3f298de5e9d79ed1833a4177ed12a5

Analysis

max time kernel
143s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
31-01-2025 20:01

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General

Target

2025-01-31_8b2bfd98f7a67be7cf3cca77f60b2c77_mafia.exe
Size

11.7MB
MD5

8b2bfd98f7a67be7cf3cca77f60b2c77
SHA1

d5137cd797229cf309edaea9e77c9e840d564d7c
SHA256

a8786e809db0f73eb45a3751cc5adeed5a3f298de5e9d79ed1833a4177ed12a5
SHA512

c52a4a295e7dd38d4f6e2f8df7fb73c6fb65ae8776d9acdba53bd1989fad22d86984ada35a193feece095000ae6f9e158cf436e76461b54a39560db31814fe96
SSDEEP

196608:IyXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX:tXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXn

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\pehposuk = "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
2592	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\pehposuk\ImagePath = "C:\\Windows\\SysWOW64\\pehposuk\\wihvgqys.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2948	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2712	wihvgqys.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2712 set thread context of 2948	2712	wihvgqys.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
1392	sc.exe
2788	sc.exe
3016	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	2025-01-31_8b2bfd98f7a67be7cf3cca77f60b2c77_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	cmd.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	wihvgqys.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2344 wrote to memory of 1712	2344	2025-01-31_8b2bfd98f7a67be7cf3cca77f60b2c77_mafia.exe	31
PID 2344 wrote to memory of 1712	2344	2025-01-31_8b2bfd98f7a67be7cf3cca77f60b2c77_mafia.exe	31
PID 2344 wrote to memory of 1712	2344	2025-01-31_8b2bfd98f7a67be7cf3cca77f60b2c77_mafia.exe	31
PID 2344 wrote to memory of 1712	2344	2025-01-31_8b2bfd98f7a67be7cf3cca77f60b2c77_mafia.exe	31
PID 2344 wrote to memory of 2496	2344	2025-01-31_8b2bfd98f7a67be7cf3cca77f60b2c77_mafia.exe	33
PID 2344 wrote to memory of 2496	2344	2025-01-31_8b2bfd98f7a67be7cf3cca77f60b2c77_mafia.exe	33
PID 2344 wrote to memory of 2496	2344	2025-01-31_8b2bfd98f7a67be7cf3cca77f60b2c77_mafia.exe	33
PID 2344 wrote to memory of 2496	2344	2025-01-31_8b2bfd98f7a67be7cf3cca77f60b2c77_mafia.exe	33
PID 2344 wrote to memory of 1392	2344	2025-01-31_8b2bfd98f7a67be7cf3cca77f60b2c77_mafia.exe	35
PID 2344 wrote to memory of 1392	2344	2025-01-31_8b2bfd98f7a67be7cf3cca77f60b2c77_mafia.exe	35
PID 2344 wrote to memory of 1392	2344	2025-01-31_8b2bfd98f7a67be7cf3cca77f60b2c77_mafia.exe	35
PID 2344 wrote to memory of 1392	2344	2025-01-31_8b2bfd98f7a67be7cf3cca77f60b2c77_mafia.exe	35
PID 2344 wrote to memory of 2788	2344	2025-01-31_8b2bfd98f7a67be7cf3cca77f60b2c77_mafia.exe	37
PID 2344 wrote to memory of 2788	2344	2025-01-31_8b2bfd98f7a67be7cf3cca77f60b2c77_mafia.exe	37
PID 2344 wrote to memory of 2788	2344	2025-01-31_8b2bfd98f7a67be7cf3cca77f60b2c77_mafia.exe	37
PID 2344 wrote to memory of 2788	2344	2025-01-31_8b2bfd98f7a67be7cf3cca77f60b2c77_mafia.exe	37
PID 2344 wrote to memory of 3016	2344	2025-01-31_8b2bfd98f7a67be7cf3cca77f60b2c77_mafia.exe	39
PID 2344 wrote to memory of 3016	2344	2025-01-31_8b2bfd98f7a67be7cf3cca77f60b2c77_mafia.exe	39
PID 2344 wrote to memory of 3016	2344	2025-01-31_8b2bfd98f7a67be7cf3cca77f60b2c77_mafia.exe	39
PID 2344 wrote to memory of 3016	2344	2025-01-31_8b2bfd98f7a67be7cf3cca77f60b2c77_mafia.exe	39
PID 2344 wrote to memory of 2592	2344	2025-01-31_8b2bfd98f7a67be7cf3cca77f60b2c77_mafia.exe	42
PID 2344 wrote to memory of 2592	2344	2025-01-31_8b2bfd98f7a67be7cf3cca77f60b2c77_mafia.exe	42
PID 2344 wrote to memory of 2592	2344	2025-01-31_8b2bfd98f7a67be7cf3cca77f60b2c77_mafia.exe	42
PID 2344 wrote to memory of 2592	2344	2025-01-31_8b2bfd98f7a67be7cf3cca77f60b2c77_mafia.exe	42
PID 2712 wrote to memory of 2948	2712	wihvgqys.exe	44
PID 2712 wrote to memory of 2948	2712	wihvgqys.exe	44
PID 2712 wrote to memory of 2948	2712	wihvgqys.exe	44
PID 2712 wrote to memory of 2948	2712	wihvgqys.exe	44
PID 2712 wrote to memory of 2948	2712	wihvgqys.exe	44
PID 2712 wrote to memory of 2948	2712	wihvgqys.exe	44

C:\Users\Admin\AppData\Local\Temp\2025-01-31_8b2bfd98f7a67be7cf3cca77f60b2c77_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-31_8b2bfd98f7a67be7cf3cca77f60b2c77_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2344
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\pehposuk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1712
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\wihvgqys.exe" C:\Windows\SysWOW64\pehposuk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2496
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create pehposuk binPath= "C:\Windows\SysWOW64\pehposuk\wihvgqys.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-31_8b2bfd98f7a67be7cf3cca77f60b2c77_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1392
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description pehposuk "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2788
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start pehposuk
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3016
- 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:2592

C:\Windows\SysWOW64\pehposuk\wihvgqys.exe
C:\Windows\SysWOW64\pehposuk\wihvgqys.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-31_8b2bfd98f7a67be7cf3cca77f60b2c77_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2712
- 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:2948

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\wihvgqys.exe

Filesize
13.9MB

MD5
0859d73aa0c2e1e77531705e93f78cac

SHA1
9988638473d2193a1db8cf842945bae0cbf58a3f

SHA256
98f78962eeef6064a213402045787f998567466fa030759764292882c5d1120d

SHA512
d29c039ff37fd14081b9b5adc6da780455c3299082e87d2f2704a787e223c2422c8ea25b7631e109358d58d4399538b783b773c6ca849a68cce84505e93fe639

Download Submit
memory/2344-7-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2344-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2344-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2344-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2344-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2344-1-0x0000000000560000-0x0000000000660000-memory.dmp

Filesize
1024KB

Download
memory/2712-17-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2948-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2948-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2948-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2948-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2948-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads