tofsee | 8c93a1ad3becf7fd178c2526ef33212acb7a6b1fb7dd4bc717e13934fdd8f127

Analysis

max time kernel
144s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
27/01/2025, 11:04

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General

Target

2025-01-27_18f9339a95fac76942d8999f633c3aa3_mafia.exe
Size

12.8MB
MD5

18f9339a95fac76942d8999f633c3aa3
SHA1

0a791317aeba1090788020b6a0977a9936cdac24
SHA256

8c93a1ad3becf7fd178c2526ef33212acb7a6b1fb7dd4bc717e13934fdd8f127
SHA512

df367f27bb475073eff4060bed9a6053437bd0c3e5926a48798cb4ab1d45c63c9676252e782b8557e406895504e3ea7658d7dfaa01eccc9da9341265b0660634
SSDEEP

24576:PEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZk:MfotG

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\eefezaw = "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\eefezaw\ImagePath = "C:\\Windows\\SysWOW64\\eefezaw\\gidjcpz.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
3016	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1224	gidjcpz.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1224 set thread context of 3016	1224	gidjcpz.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2712	sc.exe
2548	sc.exe
2576	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	netsh.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	gidjcpz.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-27_18f9339a95fac76942d8999f633c3aa3_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2704 wrote to memory of 2936	2704	2025-01-27_18f9339a95fac76942d8999f633c3aa3_mafia.exe	30
PID 2704 wrote to memory of 2936	2704	2025-01-27_18f9339a95fac76942d8999f633c3aa3_mafia.exe	30
PID 2704 wrote to memory of 2936	2704	2025-01-27_18f9339a95fac76942d8999f633c3aa3_mafia.exe	30
PID 2704 wrote to memory of 2936	2704	2025-01-27_18f9339a95fac76942d8999f633c3aa3_mafia.exe	30
PID 2704 wrote to memory of 2408	2704	2025-01-27_18f9339a95fac76942d8999f633c3aa3_mafia.exe	32
PID 2704 wrote to memory of 2408	2704	2025-01-27_18f9339a95fac76942d8999f633c3aa3_mafia.exe	32
PID 2704 wrote to memory of 2408	2704	2025-01-27_18f9339a95fac76942d8999f633c3aa3_mafia.exe	32
PID 2704 wrote to memory of 2408	2704	2025-01-27_18f9339a95fac76942d8999f633c3aa3_mafia.exe	32
PID 2704 wrote to memory of 2576	2704	2025-01-27_18f9339a95fac76942d8999f633c3aa3_mafia.exe	34
PID 2704 wrote to memory of 2576	2704	2025-01-27_18f9339a95fac76942d8999f633c3aa3_mafia.exe	34
PID 2704 wrote to memory of 2576	2704	2025-01-27_18f9339a95fac76942d8999f633c3aa3_mafia.exe	34
PID 2704 wrote to memory of 2576	2704	2025-01-27_18f9339a95fac76942d8999f633c3aa3_mafia.exe	34
PID 2704 wrote to memory of 2712	2704	2025-01-27_18f9339a95fac76942d8999f633c3aa3_mafia.exe	36
PID 2704 wrote to memory of 2712	2704	2025-01-27_18f9339a95fac76942d8999f633c3aa3_mafia.exe	36
PID 2704 wrote to memory of 2712	2704	2025-01-27_18f9339a95fac76942d8999f633c3aa3_mafia.exe	36
PID 2704 wrote to memory of 2712	2704	2025-01-27_18f9339a95fac76942d8999f633c3aa3_mafia.exe	36
PID 2704 wrote to memory of 2548	2704	2025-01-27_18f9339a95fac76942d8999f633c3aa3_mafia.exe	38
PID 2704 wrote to memory of 2548	2704	2025-01-27_18f9339a95fac76942d8999f633c3aa3_mafia.exe	38
PID 2704 wrote to memory of 2548	2704	2025-01-27_18f9339a95fac76942d8999f633c3aa3_mafia.exe	38
PID 2704 wrote to memory of 2548	2704	2025-01-27_18f9339a95fac76942d8999f633c3aa3_mafia.exe	38
PID 1224 wrote to memory of 3016	1224	gidjcpz.exe	41
PID 1224 wrote to memory of 3016	1224	gidjcpz.exe	41
PID 1224 wrote to memory of 3016	1224	gidjcpz.exe	41
PID 1224 wrote to memory of 3016	1224	gidjcpz.exe	41
PID 1224 wrote to memory of 3016	1224	gidjcpz.exe	41
PID 1224 wrote to memory of 3016	1224	gidjcpz.exe	41
PID 2704 wrote to memory of 2592	2704	2025-01-27_18f9339a95fac76942d8999f633c3aa3_mafia.exe	42
PID 2704 wrote to memory of 2592	2704	2025-01-27_18f9339a95fac76942d8999f633c3aa3_mafia.exe	42
PID 2704 wrote to memory of 2592	2704	2025-01-27_18f9339a95fac76942d8999f633c3aa3_mafia.exe	42
PID 2704 wrote to memory of 2592	2704	2025-01-27_18f9339a95fac76942d8999f633c3aa3_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-01-27_18f9339a95fac76942d8999f633c3aa3_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-27_18f9339a95fac76942d8999f633c3aa3_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2704
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\eefezaw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2936
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\gidjcpz.exe" C:\Windows\SysWOW64\eefezaw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2408
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create eefezaw binPath= "C:\Windows\SysWOW64\eefezaw\gidjcpz.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-27_18f9339a95fac76942d8999f633c3aa3_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2576
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description eefezaw "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2712
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start eefezaw
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2548
- 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\eefezaw\gidjcpz.exe
C:\Windows\SysWOW64\eefezaw\gidjcpz.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-27_18f9339a95fac76942d8999f633c3aa3_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1224
- 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:3016

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\gidjcpz.exe

Filesize
12.6MB

MD5
5cc38bd732910c23ecf0e6300c0d9868

SHA1
569ca40bd216e51f63e25f7d4cee7ad1b1b20d33

SHA256
41cfe52d4aa4a5b97f7295230afd9be31e6d84af5a9aa8f710c9e7c6218ec3ee

SHA512
aa12866d6eb39ee7c91446aafe89f06f34a6802a6f8ed311baa83492d72cf996eefa0e282963ad215ba161b59b9868b872e6fb928536ea10011ca52283d59127

Download Submit
memory/1224-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2704-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2704-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2704-1-0x0000000000270000-0x0000000000370000-memory.dmp

Filesize
1024KB

Download
memory/2704-14-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2704-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2704-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/3016-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3016-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3016-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3016-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3016-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads