tofsee | 91b038d38e75721357bee7068989af43dfb3aaee68d3e228783b91abbba229d8

Analysis

max time kernel
144s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
27/01/2025, 18:45

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General

Target

2025-01-27_315bb49856f11fb734d4f765166c4591_mafia.exe
Size

12.5MB
MD5

315bb49856f11fb734d4f765166c4591
SHA1

d55beee88ccae7a33151bc3f21ee0eba1453c688
SHA256

91b038d38e75721357bee7068989af43dfb3aaee68d3e228783b91abbba229d8
SHA512

f7c6695cc04c6d8941e4293ce3ca1c34fb68f6fc4c969f9fcfd30a83f852c460ed87e2014463cab76f93963705f1d394b4db551ee9aa9227e1f3b58ee0390411
SSDEEP

393216:aXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXn:

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\clapsgry = "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
2732	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\clapsgry\ImagePath = "C:\\Windows\\SysWOW64\\clapsgry\\ayhirncy.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2820	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2724	ayhirncy.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2724 set thread context of 2820	2724	ayhirncy.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2480	sc.exe
824	sc.exe
2796	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	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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-27_315bb49856f11fb734d4f765166c4591_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	ayhirncy.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2380 wrote to memory of 2328	2380	2025-01-27_315bb49856f11fb734d4f765166c4591_mafia.exe	30
PID 2380 wrote to memory of 2328	2380	2025-01-27_315bb49856f11fb734d4f765166c4591_mafia.exe	30
PID 2380 wrote to memory of 2328	2380	2025-01-27_315bb49856f11fb734d4f765166c4591_mafia.exe	30
PID 2380 wrote to memory of 2328	2380	2025-01-27_315bb49856f11fb734d4f765166c4591_mafia.exe	30
PID 2380 wrote to memory of 2860	2380	2025-01-27_315bb49856f11fb734d4f765166c4591_mafia.exe	32
PID 2380 wrote to memory of 2860	2380	2025-01-27_315bb49856f11fb734d4f765166c4591_mafia.exe	32
PID 2380 wrote to memory of 2860	2380	2025-01-27_315bb49856f11fb734d4f765166c4591_mafia.exe	32
PID 2380 wrote to memory of 2860	2380	2025-01-27_315bb49856f11fb734d4f765166c4591_mafia.exe	32
PID 2380 wrote to memory of 2480	2380	2025-01-27_315bb49856f11fb734d4f765166c4591_mafia.exe	34
PID 2380 wrote to memory of 2480	2380	2025-01-27_315bb49856f11fb734d4f765166c4591_mafia.exe	34
PID 2380 wrote to memory of 2480	2380	2025-01-27_315bb49856f11fb734d4f765166c4591_mafia.exe	34
PID 2380 wrote to memory of 2480	2380	2025-01-27_315bb49856f11fb734d4f765166c4591_mafia.exe	34
PID 2380 wrote to memory of 824	2380	2025-01-27_315bb49856f11fb734d4f765166c4591_mafia.exe	37
PID 2380 wrote to memory of 824	2380	2025-01-27_315bb49856f11fb734d4f765166c4591_mafia.exe	37
PID 2380 wrote to memory of 824	2380	2025-01-27_315bb49856f11fb734d4f765166c4591_mafia.exe	37
PID 2380 wrote to memory of 824	2380	2025-01-27_315bb49856f11fb734d4f765166c4591_mafia.exe	37
PID 2380 wrote to memory of 2796	2380	2025-01-27_315bb49856f11fb734d4f765166c4591_mafia.exe	39
PID 2380 wrote to memory of 2796	2380	2025-01-27_315bb49856f11fb734d4f765166c4591_mafia.exe	39
PID 2380 wrote to memory of 2796	2380	2025-01-27_315bb49856f11fb734d4f765166c4591_mafia.exe	39
PID 2380 wrote to memory of 2796	2380	2025-01-27_315bb49856f11fb734d4f765166c4591_mafia.exe	39
PID 2724 wrote to memory of 2820	2724	ayhirncy.exe	42
PID 2724 wrote to memory of 2820	2724	ayhirncy.exe	42
PID 2724 wrote to memory of 2820	2724	ayhirncy.exe	42
PID 2724 wrote to memory of 2820	2724	ayhirncy.exe	42
PID 2724 wrote to memory of 2820	2724	ayhirncy.exe	42
PID 2724 wrote to memory of 2820	2724	ayhirncy.exe	42
PID 2380 wrote to memory of 2732	2380	2025-01-27_315bb49856f11fb734d4f765166c4591_mafia.exe	43
PID 2380 wrote to memory of 2732	2380	2025-01-27_315bb49856f11fb734d4f765166c4591_mafia.exe	43
PID 2380 wrote to memory of 2732	2380	2025-01-27_315bb49856f11fb734d4f765166c4591_mafia.exe	43
PID 2380 wrote to memory of 2732	2380	2025-01-27_315bb49856f11fb734d4f765166c4591_mafia.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-01-27_315bb49856f11fb734d4f765166c4591_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-27_315bb49856f11fb734d4f765166c4591_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2380
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\clapsgry\
  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\ayhirncy.exe" C:\Windows\SysWOW64\clapsgry\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2860
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create clapsgry binPath= "C:\Windows\SysWOW64\clapsgry\ayhirncy.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-27_315bb49856f11fb734d4f765166c4591_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2480
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description clapsgry "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:824
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start clapsgry
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2796
- 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:2732

C:\Windows\SysWOW64\clapsgry\ayhirncy.exe
C:\Windows\SysWOW64\clapsgry\ayhirncy.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-27_315bb49856f11fb734d4f765166c4591_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2724
- 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:2820

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\ayhirncy.exe

Filesize
11.6MB

MD5
c889debcc8ac6ee3dda34c47bbfd9bde

SHA1
fef85fc8e663f32ed149b2612713d035102fa323

SHA256
4035ddc2255c2614b03ac3d9bc9c50029d14cf9d9ae73f7925df86601941ffac

SHA512
17bb0f6a9e70104d21104fe322a9adada19ed409ae16bd5cccda1e8acf1f5e9c5ee2b28f4072bb8ce44ecb19a9472dffa9d9c01a9f23384b8f6fac614b871394

Download Submit
memory/2380-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2380-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2380-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2380-14-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2380-1-0x00000000008C0000-0x00000000009C0000-memory.dmp

Filesize
1024KB

Download
memory/2380-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2724-12-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2820-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2820-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2820-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2820-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2820-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads