tofsee | c1dd5abe327d73b5152cb7a0d0bca205d6808981e25fc469f9c0118e313e4987

General

Target

2025-02-01_5dc90b4af645432c2a130c25b4348f4f_mafia.exe
Size

14.7MB
MD5

5dc90b4af645432c2a130c25b4348f4f
SHA1

25e4153df22e92c64d53ac7f1cde48fbf964ac5a
SHA256

c1dd5abe327d73b5152cb7a0d0bca205d6808981e25fc469f9c0118e313e4987
SHA512

f406f0adecb584f783ee8eebe805fc6dfe6190d22e46c483de3b82f65a35af0803a37ab91cd838d965afc01c14a380209fa15fc5b9a99935cb97c7fc8ba3b00c
SSDEEP

24576:cpomTTN9tttttttttttttttttttttttttttttttttttttttttttttttttttttttn:4oo

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
5024	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\zargnyyx\ImagePath = "C:\\Windows\\SysWOW64\\zargnyyx\\lykhansc.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-1-5-21-3625106387-4207083342-115176794-1000\Control Panel\International\Geo\Nation	2025-02-01_5dc90b4af645432c2a130c25b4348f4f_mafia.exe

Deletes itself 1 IoCs

pid	Process
1172	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2912	lykhansc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2912 set thread context of 1172	2912	lykhansc.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
1952	sc.exe
2928	sc.exe
1028	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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3696	368	WerFault.exe	82
1668	2912	WerFault.exe	96

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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	lykhansc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-01_5dc90b4af645432c2a130c25b4348f4f_mafia.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	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 368 wrote to memory of 1660	368	2025-02-01_5dc90b4af645432c2a130c25b4348f4f_mafia.exe	86
PID 368 wrote to memory of 1660	368	2025-02-01_5dc90b4af645432c2a130c25b4348f4f_mafia.exe	86
PID 368 wrote to memory of 1660	368	2025-02-01_5dc90b4af645432c2a130c25b4348f4f_mafia.exe	86
PID 368 wrote to memory of 3092	368	2025-02-01_5dc90b4af645432c2a130c25b4348f4f_mafia.exe	88
PID 368 wrote to memory of 3092	368	2025-02-01_5dc90b4af645432c2a130c25b4348f4f_mafia.exe	88
PID 368 wrote to memory of 3092	368	2025-02-01_5dc90b4af645432c2a130c25b4348f4f_mafia.exe	88
PID 368 wrote to memory of 2928	368	2025-02-01_5dc90b4af645432c2a130c25b4348f4f_mafia.exe	90
PID 368 wrote to memory of 2928	368	2025-02-01_5dc90b4af645432c2a130c25b4348f4f_mafia.exe	90
PID 368 wrote to memory of 2928	368	2025-02-01_5dc90b4af645432c2a130c25b4348f4f_mafia.exe	90
PID 368 wrote to memory of 1028	368	2025-02-01_5dc90b4af645432c2a130c25b4348f4f_mafia.exe	92
PID 368 wrote to memory of 1028	368	2025-02-01_5dc90b4af645432c2a130c25b4348f4f_mafia.exe	92
PID 368 wrote to memory of 1028	368	2025-02-01_5dc90b4af645432c2a130c25b4348f4f_mafia.exe	92
PID 368 wrote to memory of 1952	368	2025-02-01_5dc90b4af645432c2a130c25b4348f4f_mafia.exe	94
PID 368 wrote to memory of 1952	368	2025-02-01_5dc90b4af645432c2a130c25b4348f4f_mafia.exe	94
PID 368 wrote to memory of 1952	368	2025-02-01_5dc90b4af645432c2a130c25b4348f4f_mafia.exe	94
PID 368 wrote to memory of 5024	368	2025-02-01_5dc90b4af645432c2a130c25b4348f4f_mafia.exe	97
PID 368 wrote to memory of 5024	368	2025-02-01_5dc90b4af645432c2a130c25b4348f4f_mafia.exe	97
PID 368 wrote to memory of 5024	368	2025-02-01_5dc90b4af645432c2a130c25b4348f4f_mafia.exe	97
PID 2912 wrote to memory of 1172	2912	lykhansc.exe	102
PID 2912 wrote to memory of 1172	2912	lykhansc.exe	102
PID 2912 wrote to memory of 1172	2912	lykhansc.exe	102
PID 2912 wrote to memory of 1172	2912	lykhansc.exe	102
PID 2912 wrote to memory of 1172	2912	lykhansc.exe	102

C:\Users\Admin\AppData\Local\Temp\2025-02-01_5dc90b4af645432c2a130c25b4348f4f_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-01_5dc90b4af645432c2a130c25b4348f4f_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:368
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zargnyyx\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1660
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\lykhansc.exe" C:\Windows\SysWOW64\zargnyyx\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3092
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create zargnyyx binPath= "C:\Windows\SysWOW64\zargnyyx\lykhansc.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-01_5dc90b4af645432c2a130c25b4348f4f_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2928
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description zargnyyx "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1028
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start zargnyyx
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1952
- 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:5024
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 368 -s 572
  2⤵
  - Program crash
  PID:3696

C:\Windows\SysWOW64\zargnyyx\lykhansc.exe
C:\Windows\SysWOW64\zargnyyx\lykhansc.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-01_5dc90b4af645432c2a130c25b4348f4f_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2912
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1172
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2912 -s 512
  2⤵
  - Program crash
  PID:1668

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 368 -ip 368
1⤵
PID:3744

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 2912 -ip 2912
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\lykhansc.exe

Filesize
11.6MB

MD5
2f8bcec49f9d457bbdfc39dfd26a7544

SHA1
50c63ecd2c0825a14b4c4a759145a4c66cb3fe4d

SHA256
44ae8e94edd15b6e9d11742e75b2696bba22e920425b802e11b3a723e5ab37de

SHA512
1c3b4694a8bf3c05b43bfe1ff419a3d23689b2a297c8b9c4f1df5b0fdeaec8623e3189aa4c55b0db266dd66714db0137a09cedb47263360aa5265bda968949b0

Download Submit
memory/368-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/368-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/368-2-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/368-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/368-8-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/368-1-0x0000000000670000-0x0000000000770000-memory.dmp

Filesize
1024KB

Download
memory/1172-14-0x0000000000670000-0x0000000000685000-memory.dmp

Filesize
84KB

Download
memory/1172-16-0x0000000000670000-0x0000000000685000-memory.dmp

Filesize
84KB

Download
memory/1172-17-0x0000000000670000-0x0000000000685000-memory.dmp

Filesize
84KB

Download
memory/2912-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2912-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2912-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2912-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads