tofsee | 92e052aaa171088403915bf4bb65510956008cbbcc52af5bf7ff88e4a870ef08

General

Target

2025-02-13_21c57bc4f8f7d23ad1ded43862b20cd9_mafia.exe
Size

12.7MB
MD5

21c57bc4f8f7d23ad1ded43862b20cd9
SHA1

95a7848cf77451144d1afe6f92d3f4956be8787b
SHA256

92e052aaa171088403915bf4bb65510956008cbbcc52af5bf7ff88e4a870ef08
SHA512

f37f4ca0a0ce36751ef200c9414f3488f896519a2a2302e594aebf1788b778f224b4b44475b1b025bf12f87d8ff27cf03493f255783d5b438d9bb568461a1057
SSDEEP

393216:6XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXD:S

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
70	3432	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
868	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\pmzscbxd\ImagePath = "C:\\Windows\\SysWOW64\\pmzscbxd\\ytxpfqsq.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-1-5-21-2508704002-2325818048-3575902788-1000\Control Panel\International\Geo\Nation	2025-02-13_21c57bc4f8f7d23ad1ded43862b20cd9_mafia.exe

Deletes itself 1 IoCs

pid	Process
3144	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4828	ytxpfqsq.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4828 set thread context of 3144	4828	ytxpfqsq.exe	103

Launches sc.exe 3 IoCs

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

pid	Process
4524	sc.exe
4584	sc.exe
4904	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

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	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	ytxpfqsq.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-13_21c57bc4f8f7d23ad1ded43862b20cd9_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	netsh.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
1576	MicrosoftEdgeUpdate.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 956 wrote to memory of 4312	956	2025-02-13_21c57bc4f8f7d23ad1ded43862b20cd9_mafia.exe	88
PID 956 wrote to memory of 4312	956	2025-02-13_21c57bc4f8f7d23ad1ded43862b20cd9_mafia.exe	88
PID 956 wrote to memory of 4312	956	2025-02-13_21c57bc4f8f7d23ad1ded43862b20cd9_mafia.exe	88
PID 956 wrote to memory of 4624	956	2025-02-13_21c57bc4f8f7d23ad1ded43862b20cd9_mafia.exe	92
PID 956 wrote to memory of 4624	956	2025-02-13_21c57bc4f8f7d23ad1ded43862b20cd9_mafia.exe	92
PID 956 wrote to memory of 4624	956	2025-02-13_21c57bc4f8f7d23ad1ded43862b20cd9_mafia.exe	92
PID 956 wrote to memory of 4524	956	2025-02-13_21c57bc4f8f7d23ad1ded43862b20cd9_mafia.exe	94
PID 956 wrote to memory of 4524	956	2025-02-13_21c57bc4f8f7d23ad1ded43862b20cd9_mafia.exe	94
PID 956 wrote to memory of 4524	956	2025-02-13_21c57bc4f8f7d23ad1ded43862b20cd9_mafia.exe	94
PID 956 wrote to memory of 4584	956	2025-02-13_21c57bc4f8f7d23ad1ded43862b20cd9_mafia.exe	96
PID 956 wrote to memory of 4584	956	2025-02-13_21c57bc4f8f7d23ad1ded43862b20cd9_mafia.exe	96
PID 956 wrote to memory of 4584	956	2025-02-13_21c57bc4f8f7d23ad1ded43862b20cd9_mafia.exe	96
PID 956 wrote to memory of 4904	956	2025-02-13_21c57bc4f8f7d23ad1ded43862b20cd9_mafia.exe	98
PID 956 wrote to memory of 4904	956	2025-02-13_21c57bc4f8f7d23ad1ded43862b20cd9_mafia.exe	98
PID 956 wrote to memory of 4904	956	2025-02-13_21c57bc4f8f7d23ad1ded43862b20cd9_mafia.exe	98
PID 956 wrote to memory of 868	956	2025-02-13_21c57bc4f8f7d23ad1ded43862b20cd9_mafia.exe	101
PID 956 wrote to memory of 868	956	2025-02-13_21c57bc4f8f7d23ad1ded43862b20cd9_mafia.exe	101
PID 956 wrote to memory of 868	956	2025-02-13_21c57bc4f8f7d23ad1ded43862b20cd9_mafia.exe	101
PID 4828 wrote to memory of 3144	4828	ytxpfqsq.exe	103
PID 4828 wrote to memory of 3144	4828	ytxpfqsq.exe	103
PID 4828 wrote to memory of 3144	4828	ytxpfqsq.exe	103
PID 4828 wrote to memory of 3144	4828	ytxpfqsq.exe	103
PID 4828 wrote to memory of 3144	4828	ytxpfqsq.exe	103

C:\Users\Admin\AppData\Local\Temp\2025-02-13_21c57bc4f8f7d23ad1ded43862b20cd9_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-13_21c57bc4f8f7d23ad1ded43862b20cd9_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:956
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\pmzscbxd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4312
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ytxpfqsq.exe" C:\Windows\SysWOW64\pmzscbxd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4624
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create pmzscbxd binPath= "C:\Windows\SysWOW64\pmzscbxd\ytxpfqsq.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-13_21c57bc4f8f7d23ad1ded43862b20cd9_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4524
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description pmzscbxd "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4584
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start pmzscbxd
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4904
- 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:868

C:\Windows\SysWOW64\pmzscbxd\ytxpfqsq.exe
C:\Windows\SysWOW64\pmzscbxd\ytxpfqsq.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-13_21c57bc4f8f7d23ad1ded43862b20cd9_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4828
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3144

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIyIiBpbnN0YWxsZGF0ZXRpbWU9IjE3MzkyODMyMzYiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4Mzc1NDI1MTE0ODAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1MzkwMjkzMTI0Ii8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:1576

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

Loading Replay Monitor...

Downloads

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

Filesize
14.3MB

MD5
527957b55ee6dca631ba370e835f7a4e

SHA1
fb2a93ce6fcad1084acec1767d64c350d2347f6b

SHA256
14fd7b4455fc3de88c250941b5098618f06f8676f5d24d98c650fefaaed90802

SHA512
15a7dad3b21ccfb63129e9685e7d707ff064a93103d6e33e661c77b7281d57d2bc4309faadf0e90811089b3700f4b1979938872e3d177a91a9d319b3924abbd6

Download Submit
memory/956-7-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/956-1-0x0000000000710000-0x0000000000810000-memory.dmp

Filesize
1024KB

Download
memory/956-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/956-8-0x0000000000570000-0x0000000000583000-memory.dmp

Filesize
76KB

Download
memory/956-2-0x0000000000570000-0x0000000000583000-memory.dmp

Filesize
76KB

Download
memory/956-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3144-17-0x0000000000E50000-0x0000000000E65000-memory.dmp

Filesize
84KB

Download
memory/3144-21-0x0000000000E50000-0x0000000000E65000-memory.dmp

Filesize
84KB

Download
memory/3144-13-0x0000000000E50000-0x0000000000E65000-memory.dmp

Filesize
84KB

Download
memory/3144-16-0x0000000000E50000-0x0000000000E65000-memory.dmp

Filesize
84KB

Download
memory/3144-20-0x0000000000E50000-0x0000000000E65000-memory.dmp

Filesize
84KB

Download
memory/4828-12-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/4828-19-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/4828-11-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads