tofsee | c10f6f8864f25716507b2d57f180032904412952bf13a96777478862d434032f

General

Target

2025-02-07_0f32348b1dbda936bd7b5ecda7b9a6fb_mafia.exe
Size

10.8MB
MD5

0f32348b1dbda936bd7b5ecda7b9a6fb
SHA1

494bbdcf3abc60ebb8174a922e52db8c3403624b
SHA256

c10f6f8864f25716507b2d57f180032904412952bf13a96777478862d434032f
SHA512

a75c8840ca5c0c389c1713f39df380411dff8cdbcb91df3e71ec55ad036fae9f0758651faf5c92fe3f891414535d1e64d5f8f1b5395422ad539a473295648dcf
SSDEEP

24576:PEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ5:Mfot

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
69	1732	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
2668	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\zfwzndww\ImagePath = "C:\\Windows\\SysWOW64\\zfwzndww\\mzlibotd.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-1-5-21-2573923862-3221519550-2669654151-1000\Control Panel\International\Geo\Nation	2025-02-07_0f32348b1dbda936bd7b5ecda7b9a6fb_mafia.exe

Deletes itself 1 IoCs

pid	Process
2812	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2920	mzlibotd.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2920 set thread context of 2812	2920	mzlibotd.exe	105

Launches sc.exe 3 IoCs

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

pid	Process
4560	sc.exe
4100	sc.exe
3184	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
2360	4764	WerFault.exe	85
4740	2920	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	2025-02-07_0f32348b1dbda936bd7b5ecda7b9a6fb_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	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	mzlibotd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MicrosoftEdgeUpdate.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
4732	MicrosoftEdgeUpdate.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4764 wrote to memory of 116	4764	2025-02-07_0f32348b1dbda936bd7b5ecda7b9a6fb_mafia.exe	89
PID 4764 wrote to memory of 116	4764	2025-02-07_0f32348b1dbda936bd7b5ecda7b9a6fb_mafia.exe	89
PID 4764 wrote to memory of 116	4764	2025-02-07_0f32348b1dbda936bd7b5ecda7b9a6fb_mafia.exe	89
PID 4764 wrote to memory of 212	4764	2025-02-07_0f32348b1dbda936bd7b5ecda7b9a6fb_mafia.exe	91
PID 4764 wrote to memory of 212	4764	2025-02-07_0f32348b1dbda936bd7b5ecda7b9a6fb_mafia.exe	91
PID 4764 wrote to memory of 212	4764	2025-02-07_0f32348b1dbda936bd7b5ecda7b9a6fb_mafia.exe	91
PID 4764 wrote to memory of 4560	4764	2025-02-07_0f32348b1dbda936bd7b5ecda7b9a6fb_mafia.exe	93
PID 4764 wrote to memory of 4560	4764	2025-02-07_0f32348b1dbda936bd7b5ecda7b9a6fb_mafia.exe	93
PID 4764 wrote to memory of 4560	4764	2025-02-07_0f32348b1dbda936bd7b5ecda7b9a6fb_mafia.exe	93
PID 4764 wrote to memory of 4100	4764	2025-02-07_0f32348b1dbda936bd7b5ecda7b9a6fb_mafia.exe	95
PID 4764 wrote to memory of 4100	4764	2025-02-07_0f32348b1dbda936bd7b5ecda7b9a6fb_mafia.exe	95
PID 4764 wrote to memory of 4100	4764	2025-02-07_0f32348b1dbda936bd7b5ecda7b9a6fb_mafia.exe	95
PID 4764 wrote to memory of 3184	4764	2025-02-07_0f32348b1dbda936bd7b5ecda7b9a6fb_mafia.exe	97
PID 4764 wrote to memory of 3184	4764	2025-02-07_0f32348b1dbda936bd7b5ecda7b9a6fb_mafia.exe	97
PID 4764 wrote to memory of 3184	4764	2025-02-07_0f32348b1dbda936bd7b5ecda7b9a6fb_mafia.exe	97
PID 4764 wrote to memory of 2668	4764	2025-02-07_0f32348b1dbda936bd7b5ecda7b9a6fb_mafia.exe	100
PID 4764 wrote to memory of 2668	4764	2025-02-07_0f32348b1dbda936bd7b5ecda7b9a6fb_mafia.exe	100
PID 4764 wrote to memory of 2668	4764	2025-02-07_0f32348b1dbda936bd7b5ecda7b9a6fb_mafia.exe	100
PID 2920 wrote to memory of 2812	2920	mzlibotd.exe	105
PID 2920 wrote to memory of 2812	2920	mzlibotd.exe	105
PID 2920 wrote to memory of 2812	2920	mzlibotd.exe	105
PID 2920 wrote to memory of 2812	2920	mzlibotd.exe	105
PID 2920 wrote to memory of 2812	2920	mzlibotd.exe	105

C:\Users\Admin\AppData\Local\Temp\2025-02-07_0f32348b1dbda936bd7b5ecda7b9a6fb_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-07_0f32348b1dbda936bd7b5ecda7b9a6fb_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4764
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zfwzndww\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:116
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\mzlibotd.exe" C:\Windows\SysWOW64\zfwzndww\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:212
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create zfwzndww binPath= "C:\Windows\SysWOW64\zfwzndww\mzlibotd.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-07_0f32348b1dbda936bd7b5ecda7b9a6fb_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4560
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description zfwzndww "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4100
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start zfwzndww
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3184
- 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:2668
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4764 -s 1184
  2⤵
  - Program crash
  PID:2360

C:\Windows\SysWOW64\zfwzndww\mzlibotd.exe
C:\Windows\SysWOW64\zfwzndww\mzlibotd.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-07_0f32348b1dbda936bd7b5ecda7b9a6fb_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2920
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2812
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2920 -s 516
  2⤵
  - Program crash
  PID:4740

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 200 -p 4764 -ip 4764
1⤵
PID:2996

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 2920 -ip 2920
1⤵
PID:1152

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIxIiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDU4MTUiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxODE1MzQzMTAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1MjU5OTUwOTgxIi8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:4732

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\mzlibotd.exe

Filesize
10.8MB

MD5
e7b98c5fb9b646ee1f57f8e26a88bb5e

SHA1
c4bc3720dc3682762021f463c6fa5bdc920e5187

SHA256
4436c3b8b693c7b17a642bd07f9e62f94151682264ddcf60956c5672624fb14f

SHA512
9aefc2f4086e74a09abf5c02993b888ed202a48fd18a43416c1a320ab8511dcaf41ba30e605f701826b587d37108062876697dbba452c53492fe89d1537f9e3d

Download Submit
memory/2812-14-0x0000000000170000-0x0000000000185000-memory.dmp

Filesize
84KB

Download
memory/2812-16-0x0000000000170000-0x0000000000185000-memory.dmp

Filesize
84KB

Download
memory/2812-17-0x0000000000170000-0x0000000000185000-memory.dmp

Filesize
84KB

Download
memory/2920-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2920-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2920-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2920-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4764-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4764-2-0x0000000000880000-0x0000000000893000-memory.dmp

Filesize
76KB

Download
memory/4764-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4764-8-0x0000000000880000-0x0000000000893000-memory.dmp

Filesize
76KB

Download
memory/4764-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4764-1-0x0000000000460000-0x0000000000560000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads