tofsee | eb1b2feb98b59beb0cd5075eac33337fa02a833b70bccd700c7ed03058064324

General

Target

2025-02-08_cfe362a77d9e209fcc14e0ec1d3d41c4_mafia.exe
Size

12.4MB
MD5

cfe362a77d9e209fcc14e0ec1d3d41c4
SHA1

46ef445a2451b71801e75698aae629a6fd23b71b
SHA256

eb1b2feb98b59beb0cd5075eac33337fa02a833b70bccd700c7ed03058064324
SHA512

795a15b7fc1075824b37440fa7e03cd475c7a1c48607f713b18ed1eb99c1d54199daaef7ea575eb70f13fa6b761cb45371ae6918feb3521cea0e7d4a99d11653
SSDEEP

3072:XLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:uOMdRQr7OB0ypmMXnl8XEPM3noSWOC

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
26	5000	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
4792	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\pgedcjel\ImagePath = "C:\\Windows\\SysWOW64\\pgedcjel\\namjcpue.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-1-5-21-194335498-2604837297-537231065-1000\Control Panel\International\Geo\Nation	2025-02-08_cfe362a77d9e209fcc14e0ec1d3d41c4_mafia.exe

Deletes itself 1 IoCs

pid	Process
3868	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1200	namjcpue.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1200 set thread context of 3868	1200	namjcpue.exe	109

Launches sc.exe 3 IoCs

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

pid	Process
1532	sc.exe
2964	sc.exe
732	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
3608	4628	WerFault.exe	87
3100	1200	WerFault.exe	103

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	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	namjcpue.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-08_cfe362a77d9e209fcc14e0ec1d3d41c4_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.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
620	MicrosoftEdgeUpdate.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4628 wrote to memory of 3744	4628	2025-02-08_cfe362a77d9e209fcc14e0ec1d3d41c4_mafia.exe	93
PID 4628 wrote to memory of 3744	4628	2025-02-08_cfe362a77d9e209fcc14e0ec1d3d41c4_mafia.exe	93
PID 4628 wrote to memory of 3744	4628	2025-02-08_cfe362a77d9e209fcc14e0ec1d3d41c4_mafia.exe	93
PID 4628 wrote to memory of 3672	4628	2025-02-08_cfe362a77d9e209fcc14e0ec1d3d41c4_mafia.exe	95
PID 4628 wrote to memory of 3672	4628	2025-02-08_cfe362a77d9e209fcc14e0ec1d3d41c4_mafia.exe	95
PID 4628 wrote to memory of 3672	4628	2025-02-08_cfe362a77d9e209fcc14e0ec1d3d41c4_mafia.exe	95
PID 4628 wrote to memory of 1532	4628	2025-02-08_cfe362a77d9e209fcc14e0ec1d3d41c4_mafia.exe	97
PID 4628 wrote to memory of 1532	4628	2025-02-08_cfe362a77d9e209fcc14e0ec1d3d41c4_mafia.exe	97
PID 4628 wrote to memory of 1532	4628	2025-02-08_cfe362a77d9e209fcc14e0ec1d3d41c4_mafia.exe	97
PID 4628 wrote to memory of 2964	4628	2025-02-08_cfe362a77d9e209fcc14e0ec1d3d41c4_mafia.exe	99
PID 4628 wrote to memory of 2964	4628	2025-02-08_cfe362a77d9e209fcc14e0ec1d3d41c4_mafia.exe	99
PID 4628 wrote to memory of 2964	4628	2025-02-08_cfe362a77d9e209fcc14e0ec1d3d41c4_mafia.exe	99
PID 4628 wrote to memory of 732	4628	2025-02-08_cfe362a77d9e209fcc14e0ec1d3d41c4_mafia.exe	101
PID 4628 wrote to memory of 732	4628	2025-02-08_cfe362a77d9e209fcc14e0ec1d3d41c4_mafia.exe	101
PID 4628 wrote to memory of 732	4628	2025-02-08_cfe362a77d9e209fcc14e0ec1d3d41c4_mafia.exe	101
PID 4628 wrote to memory of 4792	4628	2025-02-08_cfe362a77d9e209fcc14e0ec1d3d41c4_mafia.exe	104
PID 4628 wrote to memory of 4792	4628	2025-02-08_cfe362a77d9e209fcc14e0ec1d3d41c4_mafia.exe	104
PID 4628 wrote to memory of 4792	4628	2025-02-08_cfe362a77d9e209fcc14e0ec1d3d41c4_mafia.exe	104
PID 1200 wrote to memory of 3868	1200	namjcpue.exe	109
PID 1200 wrote to memory of 3868	1200	namjcpue.exe	109
PID 1200 wrote to memory of 3868	1200	namjcpue.exe	109
PID 1200 wrote to memory of 3868	1200	namjcpue.exe	109
PID 1200 wrote to memory of 3868	1200	namjcpue.exe	109

C:\Users\Admin\AppData\Local\Temp\2025-02-08_cfe362a77d9e209fcc14e0ec1d3d41c4_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-08_cfe362a77d9e209fcc14e0ec1d3d41c4_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4628
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\pgedcjel\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3744
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\namjcpue.exe" C:\Windows\SysWOW64\pgedcjel\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3672
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create pgedcjel binPath= "C:\Windows\SysWOW64\pgedcjel\namjcpue.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-08_cfe362a77d9e209fcc14e0ec1d3d41c4_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1532
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description pgedcjel "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2964
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start pgedcjel
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:732
- 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:4792
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4628 -s 1192
  2⤵
  - Program crash
  PID:3608

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIxIiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDcxNzgiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxOTY4MDM3MTAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI0OTczNzE2NDE5Ii8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:620

C:\Windows\SysWOW64\pgedcjel\namjcpue.exe
C:\Windows\SysWOW64\pgedcjel\namjcpue.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-08_cfe362a77d9e209fcc14e0ec1d3d41c4_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1200
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3868
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1200 -s 560
  2⤵
  - Program crash
  PID:3100

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 4628 -ip 4628
1⤵
PID:2584

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1200 -ip 1200
1⤵
PID:4216

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

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Downloads

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

Filesize
10.0MB

MD5
b7ac5c498a4d0ff44e32c8d257ff7579

SHA1
139c36a8e6ef61d19c83d1e7387d31d829134691

SHA256
9784c5b40b03acb0d741a397c4737d6b39017bb08e68c710fc3fe98f24659f94

SHA512
8ae9ba9c4a6476998b4e33932b0e6cf6d4a7d0bb26ba02d760a8360b0e4cd880721c0fd79977446814761986271dd1ef7da4237624d8b12ae03804103b69c273

Download Submit
memory/1200-16-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3868-12-0x0000000000EE0000-0x0000000000EF5000-memory.dmp

Filesize
84KB

Download
memory/3868-14-0x0000000000EE0000-0x0000000000EF5000-memory.dmp

Filesize
84KB

Download
memory/3868-15-0x0000000000EE0000-0x0000000000EF5000-memory.dmp

Filesize
84KB

Download
memory/4628-1-0x00000000006D0000-0x00000000007D0000-memory.dmp

Filesize
1024KB

Download
memory/4628-2-0x00000000004A0000-0x00000000004B3000-memory.dmp

Filesize
76KB

Download
memory/4628-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4628-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4628-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4628-8-0x00000000004A0000-0x00000000004B3000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads