tofsee | 5d7e40a20b0b63e723ca8e0e4da9d2d270407840030b4f91fbc2cf1625b3b04f

General

Target

2024-12-31_9a334b379f1ed799035916ab0324161e_mafia.exe
Size

14.7MB
MD5

9a334b379f1ed799035916ab0324161e
SHA1

28c9f99a05e54c1323799fcbef2d7f74b8604aa3
SHA256

5d7e40a20b0b63e723ca8e0e4da9d2d270407840030b4f91fbc2cf1625b3b04f
SHA512

9528d0ec1f8abe3c7ffe4dfdece28ba75004508007ac60767d15ae62deeb0a9cbd31eafa9581581743222cf22c4690379145d3ff77b6f62f3dd41d28885bde9c
SSDEEP

3072:2LBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:fOMdRQr7OB0ypmMXnl8XEPM3noSWOC

Score

10^/10

tofsee discovery evasion 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

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2916	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\rzdoiwff\ImagePath = "C:\\Windows\\SysWOW64\\rzdoiwff\\owlpcajj.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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	2024-12-31_9a334b379f1ed799035916ab0324161e_mafia.exe

Deletes itself 1 IoCs

pid	Process
4688	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2724	owlpcajj.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2724 set thread context of 4688	2724	owlpcajj.exe	107

Launches sc.exe 3 IoCs

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

pid	Process
2068	sc.exe
4004	sc.exe
1328	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
608	2544	WerFault.exe	82
3472	2724	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	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	svchost.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	owlpcajj.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-31_9a334b379f1ed799035916ab0324161e_mafia.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2544 wrote to memory of 5068	2544	2024-12-31_9a334b379f1ed799035916ab0324161e_mafia.exe	84
PID 2544 wrote to memory of 5068	2544	2024-12-31_9a334b379f1ed799035916ab0324161e_mafia.exe	84
PID 2544 wrote to memory of 5068	2544	2024-12-31_9a334b379f1ed799035916ab0324161e_mafia.exe	84
PID 2544 wrote to memory of 4936	2544	2024-12-31_9a334b379f1ed799035916ab0324161e_mafia.exe	86
PID 2544 wrote to memory of 4936	2544	2024-12-31_9a334b379f1ed799035916ab0324161e_mafia.exe	86
PID 2544 wrote to memory of 4936	2544	2024-12-31_9a334b379f1ed799035916ab0324161e_mafia.exe	86
PID 2544 wrote to memory of 1328	2544	2024-12-31_9a334b379f1ed799035916ab0324161e_mafia.exe	88
PID 2544 wrote to memory of 1328	2544	2024-12-31_9a334b379f1ed799035916ab0324161e_mafia.exe	88
PID 2544 wrote to memory of 1328	2544	2024-12-31_9a334b379f1ed799035916ab0324161e_mafia.exe	88
PID 2544 wrote to memory of 2068	2544	2024-12-31_9a334b379f1ed799035916ab0324161e_mafia.exe	90
PID 2544 wrote to memory of 2068	2544	2024-12-31_9a334b379f1ed799035916ab0324161e_mafia.exe	90
PID 2544 wrote to memory of 2068	2544	2024-12-31_9a334b379f1ed799035916ab0324161e_mafia.exe	90
PID 2544 wrote to memory of 4004	2544	2024-12-31_9a334b379f1ed799035916ab0324161e_mafia.exe	92
PID 2544 wrote to memory of 4004	2544	2024-12-31_9a334b379f1ed799035916ab0324161e_mafia.exe	92
PID 2544 wrote to memory of 4004	2544	2024-12-31_9a334b379f1ed799035916ab0324161e_mafia.exe	92
PID 2544 wrote to memory of 2916	2544	2024-12-31_9a334b379f1ed799035916ab0324161e_mafia.exe	95
PID 2544 wrote to memory of 2916	2544	2024-12-31_9a334b379f1ed799035916ab0324161e_mafia.exe	95
PID 2544 wrote to memory of 2916	2544	2024-12-31_9a334b379f1ed799035916ab0324161e_mafia.exe	95
PID 2724 wrote to memory of 4688	2724	owlpcajj.exe	107
PID 2724 wrote to memory of 4688	2724	owlpcajj.exe	107
PID 2724 wrote to memory of 4688	2724	owlpcajj.exe	107
PID 2724 wrote to memory of 4688	2724	owlpcajj.exe	107
PID 2724 wrote to memory of 4688	2724	owlpcajj.exe	107

C:\Users\Admin\AppData\Local\Temp\2024-12-31_9a334b379f1ed799035916ab0324161e_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-31_9a334b379f1ed799035916ab0324161e_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2544
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rzdoiwff\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5068
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\owlpcajj.exe" C:\Windows\SysWOW64\rzdoiwff\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4936
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create rzdoiwff binPath= "C:\Windows\SysWOW64\rzdoiwff\owlpcajj.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-12-31_9a334b379f1ed799035916ab0324161e_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1328
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description rzdoiwff "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2068
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start rzdoiwff
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4004
- 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:2916
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2544 -s 1196
  2⤵
  - Program crash
  PID:608

C:\Windows\SysWOW64\rzdoiwff\owlpcajj.exe
C:\Windows\SysWOW64\rzdoiwff\owlpcajj.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-12-31_9a334b379f1ed799035916ab0324161e_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⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4688
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2724 -s 508
  2⤵
  - Program crash
  PID:3472

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2544 -ip 2544
1⤵
PID:4576

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2724 -ip 2724
1⤵
PID:4956

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\owlpcajj.exe

Filesize
14.3MB

MD5
2c492e3dd1939de5fca9cad770fafc97

SHA1
6aeeeceeeee3d8e921c90ef0526e9646b3e7a49f

SHA256
207081649176edeb51fbdc6ba19a5e6d08d7d0760bd9fdf657c2ddd2580d569b

SHA512
1f9d936df514e22139e1d9684849967bd4c139ba97474bf9ad3f1bd97b61cd6056de400d50ef359361a5731eb52f0f09a77ca75db38c4a6beed8255fb6f7c7ac

Download Submit
memory/2544-8-0x0000000000450000-0x0000000000463000-memory.dmp

Filesize
76KB

Download
memory/2544-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2544-2-0x0000000000450000-0x0000000000463000-memory.dmp

Filesize
76KB

Download
memory/2544-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2544-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2544-1-0x0000000000470000-0x0000000000570000-memory.dmp

Filesize
1024KB

Download
memory/2724-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2724-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2724-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2724-19-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4688-14-0x0000000000720000-0x0000000000735000-memory.dmp

Filesize
84KB

Download
memory/4688-16-0x0000000000720000-0x0000000000735000-memory.dmp

Filesize
84KB

Download
memory/4688-17-0x0000000000720000-0x0000000000735000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads