tofsee | 14eb214a2f3fb3385fdc544cfeda6fbcccab2af6728b58683f53a597b9260e6d

General

Target

2025-01-21_eaaa33fba165a45395a43fc7ec05b1bc_mafia.exe
Size

14.6MB
MD5

eaaa33fba165a45395a43fc7ec05b1bc
SHA1

4ab77efaa1c8ad37cd8c605fb684d467f06d0db4
SHA256

14eb214a2f3fb3385fdc544cfeda6fbcccab2af6728b58683f53a597b9260e6d
SHA512

7d01895d08632def6e9d8bdbdedee9853be716c03b20be6b296ad1141c442d461d5f5c83fc4ef7def960bb6cf357d8848d3148ee38c4af60bc53fd3dac625e14
SSDEEP

24576:cEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZl:Zfot

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
1684	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\lbrtkqek\ImagePath = "C:\\Windows\\SysWOW64\\lbrtkqek\\eyypajac.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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	2025-01-21_eaaa33fba165a45395a43fc7ec05b1bc_mafia.exe

Deletes itself 1 IoCs

pid	Process
2020	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2420	eyypajac.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2420 set thread context of 2020	2420	eyypajac.exe	100

Launches sc.exe 3 IoCs

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

pid	Process
4524	sc.exe
4124	sc.exe
1536	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
660	4076	WerFault.exe	83
3480	2420	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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-21_eaaa33fba165a45395a43fc7ec05b1bc_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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	eyypajac.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4076 wrote to memory of 2780	4076	2025-01-21_eaaa33fba165a45395a43fc7ec05b1bc_mafia.exe	84
PID 4076 wrote to memory of 2780	4076	2025-01-21_eaaa33fba165a45395a43fc7ec05b1bc_mafia.exe	84
PID 4076 wrote to memory of 2780	4076	2025-01-21_eaaa33fba165a45395a43fc7ec05b1bc_mafia.exe	84
PID 4076 wrote to memory of 564	4076	2025-01-21_eaaa33fba165a45395a43fc7ec05b1bc_mafia.exe	86
PID 4076 wrote to memory of 564	4076	2025-01-21_eaaa33fba165a45395a43fc7ec05b1bc_mafia.exe	86
PID 4076 wrote to memory of 564	4076	2025-01-21_eaaa33fba165a45395a43fc7ec05b1bc_mafia.exe	86
PID 4076 wrote to memory of 1536	4076	2025-01-21_eaaa33fba165a45395a43fc7ec05b1bc_mafia.exe	88
PID 4076 wrote to memory of 1536	4076	2025-01-21_eaaa33fba165a45395a43fc7ec05b1bc_mafia.exe	88
PID 4076 wrote to memory of 1536	4076	2025-01-21_eaaa33fba165a45395a43fc7ec05b1bc_mafia.exe	88
PID 4076 wrote to memory of 4524	4076	2025-01-21_eaaa33fba165a45395a43fc7ec05b1bc_mafia.exe	90
PID 4076 wrote to memory of 4524	4076	2025-01-21_eaaa33fba165a45395a43fc7ec05b1bc_mafia.exe	90
PID 4076 wrote to memory of 4524	4076	2025-01-21_eaaa33fba165a45395a43fc7ec05b1bc_mafia.exe	90
PID 4076 wrote to memory of 4124	4076	2025-01-21_eaaa33fba165a45395a43fc7ec05b1bc_mafia.exe	92
PID 4076 wrote to memory of 4124	4076	2025-01-21_eaaa33fba165a45395a43fc7ec05b1bc_mafia.exe	92
PID 4076 wrote to memory of 4124	4076	2025-01-21_eaaa33fba165a45395a43fc7ec05b1bc_mafia.exe	92
PID 4076 wrote to memory of 1684	4076	2025-01-21_eaaa33fba165a45395a43fc7ec05b1bc_mafia.exe	95
PID 4076 wrote to memory of 1684	4076	2025-01-21_eaaa33fba165a45395a43fc7ec05b1bc_mafia.exe	95
PID 4076 wrote to memory of 1684	4076	2025-01-21_eaaa33fba165a45395a43fc7ec05b1bc_mafia.exe	95
PID 2420 wrote to memory of 2020	2420	eyypajac.exe	100
PID 2420 wrote to memory of 2020	2420	eyypajac.exe	100
PID 2420 wrote to memory of 2020	2420	eyypajac.exe	100
PID 2420 wrote to memory of 2020	2420	eyypajac.exe	100
PID 2420 wrote to memory of 2020	2420	eyypajac.exe	100

C:\Users\Admin\AppData\Local\Temp\2025-01-21_eaaa33fba165a45395a43fc7ec05b1bc_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-21_eaaa33fba165a45395a43fc7ec05b1bc_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4076
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\lbrtkqek\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2780
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\eyypajac.exe" C:\Windows\SysWOW64\lbrtkqek\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:564
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create lbrtkqek binPath= "C:\Windows\SysWOW64\lbrtkqek\eyypajac.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-21_eaaa33fba165a45395a43fc7ec05b1bc_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1536
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description lbrtkqek "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4524
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start lbrtkqek
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4124
- 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:1684
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4076 -s 648
  2⤵
  - Program crash
  PID:660

C:\Windows\SysWOW64\lbrtkqek\eyypajac.exe
C:\Windows\SysWOW64\lbrtkqek\eyypajac.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-21_eaaa33fba165a45395a43fc7ec05b1bc_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2420
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2020
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2420 -s 528
  2⤵
  - Program crash
  PID:3480

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4076 -ip 4076
1⤵
PID:964

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 2420 -ip 2420
1⤵
PID:2892

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

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Downloads

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

Filesize
14.2MB

MD5
ed0c776d01fd031e3b6b6def7c473471

SHA1
36d1b59c5c2f319cc2ae04e094766b82b6f9cf29

SHA256
2bb674cc5ae07a23ad1ac5eb37045c80cde76022c508978a64f733cf0ca1f563

SHA512
4c257c50613de1a917ca4f57ab243fffdacbd00e5e3eec2b1dd84bffd938d5f6f267c3d3062b5943f11fc91daf4c93520cf5aad9d09be4a744534adfbc0c2dab

Download Submit
memory/2020-14-0x0000000000720000-0x0000000000735000-memory.dmp

Filesize
84KB

Download
memory/2020-17-0x0000000000720000-0x0000000000735000-memory.dmp

Filesize
84KB

Download
memory/2020-16-0x0000000000720000-0x0000000000735000-memory.dmp

Filesize
84KB

Download
memory/2420-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2420-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2420-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2420-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4076-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4076-8-0x0000000000450000-0x0000000000463000-memory.dmp

Filesize
76KB

Download
memory/4076-1-0x0000000000480000-0x0000000000580000-memory.dmp

Filesize
1024KB

Download
memory/4076-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4076-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4076-2-0x0000000000450000-0x0000000000463000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads