tofsee | cb91e1fdec2e73cac56f31d34efe5f8ce8612d83d6478a57eb5a8fa0acce3acd

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
24-01-2025 07:29

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General

Target

2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_mafia.exe
Size

11.5MB
MD5

7c90e1699a20035eb73f3dc5d0ea3132
SHA1

bd217fc8671a899c3e20e6c53b483b69359be720
SHA256

cb91e1fdec2e73cac56f31d34efe5f8ce8612d83d6478a57eb5a8fa0acce3acd
SHA512

b5ad5003b6744b58696789cbe41a23f2b64c09cccbb085d93685b29edf715927ff467d872e0b819d42567c6770293442b205e60d41f181441a6e3f6e50b74f70
SSDEEP

3072:8LBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:ZOMdRQr7OB0ypmMXnl8XEPM3noSWOC

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\gyddyddy = "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
1556	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\gyddyddy\ImagePath = "C:\\Windows\\SysWOW64\\gyddyddy\\bgqlfroq.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2584	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2752	bgqlfroq.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2752 set thread context of 2584	2752	bgqlfroq.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2240	sc.exe
2452	sc.exe
2612	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	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	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	bgqlfroq.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_mafia.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1228 wrote to memory of 2820	1228	2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_mafia.exe	30
PID 1228 wrote to memory of 2820	1228	2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_mafia.exe	30
PID 1228 wrote to memory of 2820	1228	2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_mafia.exe	30
PID 1228 wrote to memory of 2820	1228	2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_mafia.exe	30
PID 1228 wrote to memory of 2812	1228	2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_mafia.exe	32
PID 1228 wrote to memory of 2812	1228	2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_mafia.exe	32
PID 1228 wrote to memory of 2812	1228	2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_mafia.exe	32
PID 1228 wrote to memory of 2812	1228	2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_mafia.exe	32
PID 1228 wrote to memory of 2240	1228	2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_mafia.exe	34
PID 1228 wrote to memory of 2240	1228	2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_mafia.exe	34
PID 1228 wrote to memory of 2240	1228	2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_mafia.exe	34
PID 1228 wrote to memory of 2240	1228	2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_mafia.exe	34
PID 1228 wrote to memory of 2452	1228	2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_mafia.exe	36
PID 1228 wrote to memory of 2452	1228	2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_mafia.exe	36
PID 1228 wrote to memory of 2452	1228	2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_mafia.exe	36
PID 1228 wrote to memory of 2452	1228	2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_mafia.exe	36
PID 1228 wrote to memory of 2612	1228	2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_mafia.exe	38
PID 1228 wrote to memory of 2612	1228	2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_mafia.exe	38
PID 1228 wrote to memory of 2612	1228	2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_mafia.exe	38
PID 1228 wrote to memory of 2612	1228	2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_mafia.exe	38
PID 2752 wrote to memory of 2584	2752	bgqlfroq.exe	41
PID 2752 wrote to memory of 2584	2752	bgqlfroq.exe	41
PID 2752 wrote to memory of 2584	2752	bgqlfroq.exe	41
PID 2752 wrote to memory of 2584	2752	bgqlfroq.exe	41
PID 2752 wrote to memory of 2584	2752	bgqlfroq.exe	41
PID 2752 wrote to memory of 2584	2752	bgqlfroq.exe	41
PID 1228 wrote to memory of 1556	1228	2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_mafia.exe	42
PID 1228 wrote to memory of 1556	1228	2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_mafia.exe	42
PID 1228 wrote to memory of 1556	1228	2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_mafia.exe	42
PID 1228 wrote to memory of 1556	1228	2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1228
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\gyddyddy\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2820
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\bgqlfroq.exe" C:\Windows\SysWOW64\gyddyddy\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2812
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create gyddyddy binPath= "C:\Windows\SysWOW64\gyddyddy\bgqlfroq.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2240
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description gyddyddy "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2452
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start gyddyddy
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2612
- 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:1556

C:\Windows\SysWOW64\gyddyddy\bgqlfroq.exe
C:\Windows\SysWOW64\gyddyddy\bgqlfroq.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2752
- 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:2584

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\bgqlfroq.exe

Filesize
11.7MB

MD5
65a3d9af44eb20cfc288db3372369d7d

SHA1
fd7c2c1fb7d3f26607fe3c5d67a9bd32d4390961

SHA256
c8168e252d66c907dd3f08216091330e989beb9f5f39e09a3775a9d10d157c45

SHA512
49b24870e57053898fc9ea7fdd552f493fee3776ac6e49bc64e12af6d420830a4299f22f2b186a2fd8f8e7525138e49e5f016a596cb8a3ad976dde43c34b3de5

Download Submit
memory/1228-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1228-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1228-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/1228-14-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1228-1-0x0000000000540000-0x0000000000640000-memory.dmp

Filesize
1024KB

Download
memory/1228-15-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2584-8-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2584-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2584-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2584-17-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2584-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2752-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads