tofsee | 09d0d0467f93f111dd908c7059cd0164a4ace3ecc58f45e4cde0f28e913e8130

General

Target

2025-01-28_a8c1c593d630a0bfa5378ce57a912489_mafia.exe
Size

13.6MB
MD5

a8c1c593d630a0bfa5378ce57a912489
SHA1

b36e5183a0bb250abe802483621cb439cc5b1d88
SHA256

09d0d0467f93f111dd908c7059cd0164a4ace3ecc58f45e4cde0f28e913e8130
SHA512

daeb183264b3279699292d162e4d3ae20f7a4e65d0d5a2f774be8929f0ba72d3c296018430de69ac2bb6a642792c60fbcb2ccb49a65411e6a578470f3275f7c6
SSDEEP

24576:qpomTTN9tttttttttttttttttttttttttttttttttttttttttttttttttttttttH:+oo

Score

10^/10

tofsee defense_evasion discovery execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

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
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
876	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\bkhezffs\ImagePath = "C:\\Windows\\SysWOW64\\bkhezffs\\mggxirik.exe"	svchost.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	2025-01-28_a8c1c593d630a0bfa5378ce57a912489_mafia.exe

Deletes itself 1 IoCs

pid	Process
4936	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1872	mggxirik.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1872 set thread context of 4936	1872	mggxirik.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
3144	sc.exe
2812	sc.exe
4324	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 queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
212	3344	WerFault.exe	82
3552	1872	WerFault.exe	94

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	mggxirik.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-28_a8c1c593d630a0bfa5378ce57a912489_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	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3344 wrote to memory of 1120	3344	2025-01-28_a8c1c593d630a0bfa5378ce57a912489_mafia.exe	83
PID 3344 wrote to memory of 1120	3344	2025-01-28_a8c1c593d630a0bfa5378ce57a912489_mafia.exe	83
PID 3344 wrote to memory of 1120	3344	2025-01-28_a8c1c593d630a0bfa5378ce57a912489_mafia.exe	83
PID 3344 wrote to memory of 4636	3344	2025-01-28_a8c1c593d630a0bfa5378ce57a912489_mafia.exe	86
PID 3344 wrote to memory of 4636	3344	2025-01-28_a8c1c593d630a0bfa5378ce57a912489_mafia.exe	86
PID 3344 wrote to memory of 4636	3344	2025-01-28_a8c1c593d630a0bfa5378ce57a912489_mafia.exe	86
PID 3344 wrote to memory of 2812	3344	2025-01-28_a8c1c593d630a0bfa5378ce57a912489_mafia.exe	88
PID 3344 wrote to memory of 2812	3344	2025-01-28_a8c1c593d630a0bfa5378ce57a912489_mafia.exe	88
PID 3344 wrote to memory of 2812	3344	2025-01-28_a8c1c593d630a0bfa5378ce57a912489_mafia.exe	88
PID 3344 wrote to memory of 4324	3344	2025-01-28_a8c1c593d630a0bfa5378ce57a912489_mafia.exe	90
PID 3344 wrote to memory of 4324	3344	2025-01-28_a8c1c593d630a0bfa5378ce57a912489_mafia.exe	90
PID 3344 wrote to memory of 4324	3344	2025-01-28_a8c1c593d630a0bfa5378ce57a912489_mafia.exe	90
PID 3344 wrote to memory of 3144	3344	2025-01-28_a8c1c593d630a0bfa5378ce57a912489_mafia.exe	92
PID 3344 wrote to memory of 3144	3344	2025-01-28_a8c1c593d630a0bfa5378ce57a912489_mafia.exe	92
PID 3344 wrote to memory of 3144	3344	2025-01-28_a8c1c593d630a0bfa5378ce57a912489_mafia.exe	92
PID 3344 wrote to memory of 876	3344	2025-01-28_a8c1c593d630a0bfa5378ce57a912489_mafia.exe	95
PID 3344 wrote to memory of 876	3344	2025-01-28_a8c1c593d630a0bfa5378ce57a912489_mafia.exe	95
PID 3344 wrote to memory of 876	3344	2025-01-28_a8c1c593d630a0bfa5378ce57a912489_mafia.exe	95
PID 1872 wrote to memory of 4936	1872	mggxirik.exe	101
PID 1872 wrote to memory of 4936	1872	mggxirik.exe	101
PID 1872 wrote to memory of 4936	1872	mggxirik.exe	101
PID 1872 wrote to memory of 4936	1872	mggxirik.exe	101
PID 1872 wrote to memory of 4936	1872	mggxirik.exe	101

C:\Users\Admin\AppData\Local\Temp\2025-01-28_a8c1c593d630a0bfa5378ce57a912489_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-28_a8c1c593d630a0bfa5378ce57a912489_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3344
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\bkhezffs\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1120
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\mggxirik.exe" C:\Windows\SysWOW64\bkhezffs\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4636
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create bkhezffs binPath= "C:\Windows\SysWOW64\bkhezffs\mggxirik.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-28_a8c1c593d630a0bfa5378ce57a912489_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2812
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description bkhezffs "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4324
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start bkhezffs
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3144
- 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:876
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3344 -s 1044
  2⤵
  - Program crash
  PID:212

C:\Windows\SysWOW64\bkhezffs\mggxirik.exe
C:\Windows\SysWOW64\bkhezffs\mggxirik.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-28_a8c1c593d630a0bfa5378ce57a912489_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1872
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4936
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1872 -s 512
  2⤵
  - Program crash
  PID:3552

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3344 -ip 3344
1⤵
PID:2508

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1872 -ip 1872
1⤵
PID:4680

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\mggxirik.exe

Filesize
14.4MB

MD5
a3a149e6e8419a687d52ea76e6f7f3f0

SHA1
76e15e6b2e0c7e796db6383f53efd7caa6c3cbc3

SHA256
d480ed3791dd2fee5a37e22bc7b3128f44d728666940290ef2501fb6a615fc93

SHA512
65e898647f05f79de7e180c59addfe9ffdff7366a40de77c51cea9cd66ae892cacd3b2dd9d2f5e9c3eaa79bce52b631352d32e8934d44c5ecceb02f92684f5df

Download Submit
memory/1872-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1872-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1872-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1872-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3344-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3344-2-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download
memory/3344-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3344-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3344-8-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download
memory/3344-1-0x0000000000650000-0x0000000000750000-memory.dmp

Filesize
1024KB

Download
memory/4936-14-0x0000000000700000-0x0000000000715000-memory.dmp

Filesize
84KB

Download
memory/4936-16-0x0000000000700000-0x0000000000715000-memory.dmp

Filesize
84KB

Download
memory/4936-17-0x0000000000700000-0x0000000000715000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads