tofsee | fc232dbbb4895ab9b1ec0fe26672596bb5b4c0b2e4a172dbc30b85b8eaaacb88

General

Target

2025-02-08_3732ed8b68ce4eb8244f67ef2a4ef9f6_mafia.exe
Size

12.9MB
MD5

3732ed8b68ce4eb8244f67ef2a4ef9f6
SHA1

f661da1cd6777b7d2ca33c2aaf3a128cd4fe2d91
SHA256

fc232dbbb4895ab9b1ec0fe26672596bb5b4c0b2e4a172dbc30b85b8eaaacb88
SHA512

6bea48a7fafd2795f3ea5b9a28da9c04144a20e5dd4d0871f9817e1556ce6c28ad60d915307de9760655f690c3da904ae2fa9a4acdcaa6bd09639ce7a200c551
SSDEEP

3072:TLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:aOMdRQr7OB0ypmMXnl8XEPM3noSWOC

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

Downloads MZ/PE file 1 IoCs

flow	pid	Process
66	5080	Process not Found

Modifies Windows Firewall 2 TTPs 1 IoCs

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
3728	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\faudnzmt\ImagePath = "C:\\Windows\\SysWOW64\\faudnzmt\\hfopyujf.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-1-5-21-189444705-1272902858-1305688695-1000\Control Panel\International\Geo\Nation	2025-02-08_3732ed8b68ce4eb8244f67ef2a4ef9f6_mafia.exe

Deletes itself 1 IoCs

pid	Process
4560	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4888	hfopyujf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4888 set thread context of 4560	4888	hfopyujf.exe	108

Launches sc.exe 3 IoCs

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

pid	Process
2424	sc.exe
2836	sc.exe
2120	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
2044	2052	WerFault.exe	85
1732	4888	WerFault.exe	99

System Location Discovery: System Language Discovery 1 TTPs 10 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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-08_3732ed8b68ce4eb8244f67ef2a4ef9f6_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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MicrosoftEdgeUpdate.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	hfopyujf.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
4388	MicrosoftEdgeUpdate.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2052 wrote to memory of 5080	2052	2025-02-08_3732ed8b68ce4eb8244f67ef2a4ef9f6_mafia.exe	89
PID 2052 wrote to memory of 5080	2052	2025-02-08_3732ed8b68ce4eb8244f67ef2a4ef9f6_mafia.exe	89
PID 2052 wrote to memory of 5080	2052	2025-02-08_3732ed8b68ce4eb8244f67ef2a4ef9f6_mafia.exe	89
PID 2052 wrote to memory of 4000	2052	2025-02-08_3732ed8b68ce4eb8244f67ef2a4ef9f6_mafia.exe	91
PID 2052 wrote to memory of 4000	2052	2025-02-08_3732ed8b68ce4eb8244f67ef2a4ef9f6_mafia.exe	91
PID 2052 wrote to memory of 4000	2052	2025-02-08_3732ed8b68ce4eb8244f67ef2a4ef9f6_mafia.exe	91
PID 2052 wrote to memory of 2424	2052	2025-02-08_3732ed8b68ce4eb8244f67ef2a4ef9f6_mafia.exe	93
PID 2052 wrote to memory of 2424	2052	2025-02-08_3732ed8b68ce4eb8244f67ef2a4ef9f6_mafia.exe	93
PID 2052 wrote to memory of 2424	2052	2025-02-08_3732ed8b68ce4eb8244f67ef2a4ef9f6_mafia.exe	93
PID 2052 wrote to memory of 2836	2052	2025-02-08_3732ed8b68ce4eb8244f67ef2a4ef9f6_mafia.exe	95
PID 2052 wrote to memory of 2836	2052	2025-02-08_3732ed8b68ce4eb8244f67ef2a4ef9f6_mafia.exe	95
PID 2052 wrote to memory of 2836	2052	2025-02-08_3732ed8b68ce4eb8244f67ef2a4ef9f6_mafia.exe	95
PID 2052 wrote to memory of 2120	2052	2025-02-08_3732ed8b68ce4eb8244f67ef2a4ef9f6_mafia.exe	97
PID 2052 wrote to memory of 2120	2052	2025-02-08_3732ed8b68ce4eb8244f67ef2a4ef9f6_mafia.exe	97
PID 2052 wrote to memory of 2120	2052	2025-02-08_3732ed8b68ce4eb8244f67ef2a4ef9f6_mafia.exe	97
PID 2052 wrote to memory of 3728	2052	2025-02-08_3732ed8b68ce4eb8244f67ef2a4ef9f6_mafia.exe	100
PID 2052 wrote to memory of 3728	2052	2025-02-08_3732ed8b68ce4eb8244f67ef2a4ef9f6_mafia.exe	100
PID 2052 wrote to memory of 3728	2052	2025-02-08_3732ed8b68ce4eb8244f67ef2a4ef9f6_mafia.exe	100
PID 4888 wrote to memory of 4560	4888	hfopyujf.exe	108
PID 4888 wrote to memory of 4560	4888	hfopyujf.exe	108
PID 4888 wrote to memory of 4560	4888	hfopyujf.exe	108
PID 4888 wrote to memory of 4560	4888	hfopyujf.exe	108
PID 4888 wrote to memory of 4560	4888	hfopyujf.exe	108

C:\Users\Admin\AppData\Local\Temp\2025-02-08_3732ed8b68ce4eb8244f67ef2a4ef9f6_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-08_3732ed8b68ce4eb8244f67ef2a4ef9f6_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2052
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\faudnzmt\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5080
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\hfopyujf.exe" C:\Windows\SysWOW64\faudnzmt\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4000
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create faudnzmt binPath= "C:\Windows\SysWOW64\faudnzmt\hfopyujf.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-08_3732ed8b68ce4eb8244f67ef2a4ef9f6_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2424
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description faudnzmt "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2836
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start faudnzmt
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2120
- 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:3728
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2052 -s 1192
  2⤵
  - Program crash
  PID:2044

C:\Windows\SysWOW64\faudnzmt\hfopyujf.exe
C:\Windows\SysWOW64\faudnzmt\hfopyujf.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-08_3732ed8b68ce4eb8244f67ef2a4ef9f6_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4888
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4560
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4888 -s 532
  2⤵
  - Program crash
  PID:1732

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 2052 -ip 2052
1⤵
PID:4648

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 4888 -ip 4888
1⤵
PID:1296

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIxIiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDU5MjEiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxODE5ODA3NzAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1MDgyNzE2Njc4Ii8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:4388

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

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
10.0MB

MD5
b57f3eb8f7cb74ec0a802998d184a608

SHA1
f65f09d1b440697ef650e31090fa9ceb40ffa654

SHA256
679078bd9593a38a9737717be6972fab073e1fd18aaca65944bd0c4fb83b089e

SHA512
014bb111f041003a101a4611ee69d7f9cdc972077e0f0fa14b9cf7073b2e94559c93a7b5df74903558722f07929d09a49373ae86fd03f3eda6d3bea37c870095

Download Submit
memory/2052-8-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/2052-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2052-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/2052-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2052-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2052-1-0x0000000000500000-0x0000000000600000-memory.dmp

Filesize
1024KB

Download
memory/4560-14-0x0000000000190000-0x00000000001A5000-memory.dmp

Filesize
84KB

Download
memory/4560-16-0x0000000000190000-0x00000000001A5000-memory.dmp

Filesize
84KB

Download
memory/4560-17-0x0000000000190000-0x00000000001A5000-memory.dmp

Filesize
84KB

Download
memory/4888-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4888-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4888-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4888-19-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads