tofsee | 16c9ee84cdf7aedda3f07d8899c88dd2cd10317df727544ce2a8cef537991d55

General

Target

2025-02-03_20f960c675cadf03a205fc0dbdac4140_mafia.exe
Size

12.5MB
MD5

20f960c675cadf03a205fc0dbdac4140
SHA1

cb72aabfde6377b55fd959f03d12a64cd0ce4b1a
SHA256

16c9ee84cdf7aedda3f07d8899c88dd2cd10317df727544ce2a8cef537991d55
SHA512

dc81b08e0d5c90db19940c8161ea693b98b1d4419c2519643acd61939be37ea122962d8ed9bbac1d521a8af2d254b5ee760e31baeb8f9e29074eaf89c49ef463
SSDEEP

24576:MpomTTN9tttttttttttttttttttttttttttttttttttttttttttttttttttttttE:oooG

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
3928	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\zpfdwtnn\ImagePath = "C:\\Windows\\SysWOW64\\zpfdwtnn\\dpocnxfz.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-1-5-21-1412605595-2147700071-3468511006-1000\Control Panel\International\Geo\Nation	2025-02-03_20f960c675cadf03a205fc0dbdac4140_mafia.exe

Deletes itself 1 IoCs

pid	Process
2356	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3936	dpocnxfz.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3936 set thread context of 2356	3936	dpocnxfz.exe	106

Launches sc.exe 3 IoCs

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

pid	Process
2984	sc.exe
3140	sc.exe
5100	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
4036	2868	WerFault.exe	82
740	3936	WerFault.exe	99

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	netsh.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dpocnxfz.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-03_20f960c675cadf03a205fc0dbdac4140_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2868 wrote to memory of 3184	2868	2025-02-03_20f960c675cadf03a205fc0dbdac4140_mafia.exe	89
PID 2868 wrote to memory of 3184	2868	2025-02-03_20f960c675cadf03a205fc0dbdac4140_mafia.exe	89
PID 2868 wrote to memory of 3184	2868	2025-02-03_20f960c675cadf03a205fc0dbdac4140_mafia.exe	89
PID 2868 wrote to memory of 448	2868	2025-02-03_20f960c675cadf03a205fc0dbdac4140_mafia.exe	91
PID 2868 wrote to memory of 448	2868	2025-02-03_20f960c675cadf03a205fc0dbdac4140_mafia.exe	91
PID 2868 wrote to memory of 448	2868	2025-02-03_20f960c675cadf03a205fc0dbdac4140_mafia.exe	91
PID 2868 wrote to memory of 3140	2868	2025-02-03_20f960c675cadf03a205fc0dbdac4140_mafia.exe	93
PID 2868 wrote to memory of 3140	2868	2025-02-03_20f960c675cadf03a205fc0dbdac4140_mafia.exe	93
PID 2868 wrote to memory of 3140	2868	2025-02-03_20f960c675cadf03a205fc0dbdac4140_mafia.exe	93
PID 2868 wrote to memory of 5100	2868	2025-02-03_20f960c675cadf03a205fc0dbdac4140_mafia.exe	95
PID 2868 wrote to memory of 5100	2868	2025-02-03_20f960c675cadf03a205fc0dbdac4140_mafia.exe	95
PID 2868 wrote to memory of 5100	2868	2025-02-03_20f960c675cadf03a205fc0dbdac4140_mafia.exe	95
PID 2868 wrote to memory of 2984	2868	2025-02-03_20f960c675cadf03a205fc0dbdac4140_mafia.exe	97
PID 2868 wrote to memory of 2984	2868	2025-02-03_20f960c675cadf03a205fc0dbdac4140_mafia.exe	97
PID 2868 wrote to memory of 2984	2868	2025-02-03_20f960c675cadf03a205fc0dbdac4140_mafia.exe	97
PID 2868 wrote to memory of 3928	2868	2025-02-03_20f960c675cadf03a205fc0dbdac4140_mafia.exe	100
PID 2868 wrote to memory of 3928	2868	2025-02-03_20f960c675cadf03a205fc0dbdac4140_mafia.exe	100
PID 2868 wrote to memory of 3928	2868	2025-02-03_20f960c675cadf03a205fc0dbdac4140_mafia.exe	100
PID 3936 wrote to memory of 2356	3936	dpocnxfz.exe	106
PID 3936 wrote to memory of 2356	3936	dpocnxfz.exe	106
PID 3936 wrote to memory of 2356	3936	dpocnxfz.exe	106
PID 3936 wrote to memory of 2356	3936	dpocnxfz.exe	106
PID 3936 wrote to memory of 2356	3936	dpocnxfz.exe	106

C:\Users\Admin\AppData\Local\Temp\2025-02-03_20f960c675cadf03a205fc0dbdac4140_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-03_20f960c675cadf03a205fc0dbdac4140_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2868
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zpfdwtnn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3184
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\dpocnxfz.exe" C:\Windows\SysWOW64\zpfdwtnn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:448
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create zpfdwtnn binPath= "C:\Windows\SysWOW64\zpfdwtnn\dpocnxfz.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-03_20f960c675cadf03a205fc0dbdac4140_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3140
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description zpfdwtnn "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5100
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start zpfdwtnn
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2984
- 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:3928
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2868 -s 1220
  2⤵
  - Program crash
  PID:4036

C:\Windows\SysWOW64\zpfdwtnn\dpocnxfz.exe
C:\Windows\SysWOW64\zpfdwtnn\dpocnxfz.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-03_20f960c675cadf03a205fc0dbdac4140_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3936
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2356
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3936 -s 512
  2⤵
  - Program crash
  PID:740

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 2868 -ip 2868
1⤵
PID:912

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 3936 -ip 3936
1⤵
PID:3252

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\dpocnxfz.exe

Filesize
10.6MB

MD5
b2c46133928896c978da41be182efafc

SHA1
05d72da7130db288bdde7c7026c237368a129f84

SHA256
7a7ebe85f9444999f8103590a01114be5689380224af6b81fccbdfb2a103d758

SHA512
e5d2e8efd9af9fc70124adb397441c33ff99ba6b6c106e01e492a4e45b79ddff197ee73d814611990676e450514815fe979d2c4021db9414b312a6f413a5cbbf

Download Submit
memory/2356-14-0x00000000012A0000-0x00000000012B5000-memory.dmp

Filesize
84KB

Download
memory/2356-17-0x00000000012A0000-0x00000000012B5000-memory.dmp

Filesize
84KB

Download
memory/2356-16-0x00000000012A0000-0x00000000012B5000-memory.dmp

Filesize
84KB

Download
memory/2868-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2868-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2868-1-0x0000000000640000-0x0000000000740000-memory.dmp

Filesize
1024KB

Download
memory/2868-8-0x0000000000580000-0x0000000000593000-memory.dmp

Filesize
76KB

Download
memory/2868-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2868-2-0x0000000000580000-0x0000000000593000-memory.dmp

Filesize
76KB

Download
memory/3936-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3936-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3936-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3936-19-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads