tofsee | 6d68053fd0013708b8ec4aa6cc32dbf158fabf743677e0d58e66ee6c15a17c7c

General

Target

2025-02-13_72f81bb38d992efe30cb8376d1a5cbc1_mafia.exe
Size

14.6MB
MD5

72f81bb38d992efe30cb8376d1a5cbc1
SHA1

399d5b195dfc8e9c6b0429bbc9fb09a18f505b45
SHA256

6d68053fd0013708b8ec4aa6cc32dbf158fabf743677e0d58e66ee6c15a17c7c
SHA512

98fb8437df11fcb48c51a49522e2de73978b38b862f790d5c7b6cda8cbc055eca24193c21cb2853a33a81386be434088c560ea9c76e537a2c5022024461af4c5
SSDEEP

24576:x6WdLQkyQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQa:YWdLQk0

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
51	464	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
4656	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\fpxnzeit\ImagePath = "C:\\Windows\\SysWOW64\\fpxnzeit\\ehnhwhsy.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-1-5-21-3311063739-2594902809-44604183-1000\Control Panel\International\Geo\Nation	2025-02-13_72f81bb38d992efe30cb8376d1a5cbc1_mafia.exe

Deletes itself 1 IoCs

pid	Process
4292	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
872	ehnhwhsy.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 872 set thread context of 4292	872	ehnhwhsy.exe	107

Launches sc.exe 3 IoCs

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

pid	Process
3540	sc.exe
3980	sc.exe
3276	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 queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4248	3100	WerFault.exe	85
1732	872	WerFault.exe	101

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	2025-02-13_72f81bb38d992efe30cb8376d1a5cbc1_mafia.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ehnhwhsy.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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
4468	MicrosoftEdgeUpdate.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3100 wrote to memory of 4348	3100	2025-02-13_72f81bb38d992efe30cb8376d1a5cbc1_mafia.exe	89
PID 3100 wrote to memory of 4348	3100	2025-02-13_72f81bb38d992efe30cb8376d1a5cbc1_mafia.exe	89
PID 3100 wrote to memory of 4348	3100	2025-02-13_72f81bb38d992efe30cb8376d1a5cbc1_mafia.exe	89
PID 3100 wrote to memory of 3404	3100	2025-02-13_72f81bb38d992efe30cb8376d1a5cbc1_mafia.exe	92
PID 3100 wrote to memory of 3404	3100	2025-02-13_72f81bb38d992efe30cb8376d1a5cbc1_mafia.exe	92
PID 3100 wrote to memory of 3404	3100	2025-02-13_72f81bb38d992efe30cb8376d1a5cbc1_mafia.exe	92
PID 3100 wrote to memory of 3980	3100	2025-02-13_72f81bb38d992efe30cb8376d1a5cbc1_mafia.exe	95
PID 3100 wrote to memory of 3980	3100	2025-02-13_72f81bb38d992efe30cb8376d1a5cbc1_mafia.exe	95
PID 3100 wrote to memory of 3980	3100	2025-02-13_72f81bb38d992efe30cb8376d1a5cbc1_mafia.exe	95
PID 3100 wrote to memory of 3276	3100	2025-02-13_72f81bb38d992efe30cb8376d1a5cbc1_mafia.exe	97
PID 3100 wrote to memory of 3276	3100	2025-02-13_72f81bb38d992efe30cb8376d1a5cbc1_mafia.exe	97
PID 3100 wrote to memory of 3276	3100	2025-02-13_72f81bb38d992efe30cb8376d1a5cbc1_mafia.exe	97
PID 3100 wrote to memory of 3540	3100	2025-02-13_72f81bb38d992efe30cb8376d1a5cbc1_mafia.exe	99
PID 3100 wrote to memory of 3540	3100	2025-02-13_72f81bb38d992efe30cb8376d1a5cbc1_mafia.exe	99
PID 3100 wrote to memory of 3540	3100	2025-02-13_72f81bb38d992efe30cb8376d1a5cbc1_mafia.exe	99
PID 3100 wrote to memory of 4656	3100	2025-02-13_72f81bb38d992efe30cb8376d1a5cbc1_mafia.exe	102
PID 3100 wrote to memory of 4656	3100	2025-02-13_72f81bb38d992efe30cb8376d1a5cbc1_mafia.exe	102
PID 3100 wrote to memory of 4656	3100	2025-02-13_72f81bb38d992efe30cb8376d1a5cbc1_mafia.exe	102
PID 872 wrote to memory of 4292	872	ehnhwhsy.exe	107
PID 872 wrote to memory of 4292	872	ehnhwhsy.exe	107
PID 872 wrote to memory of 4292	872	ehnhwhsy.exe	107
PID 872 wrote to memory of 4292	872	ehnhwhsy.exe	107
PID 872 wrote to memory of 4292	872	ehnhwhsy.exe	107

C:\Users\Admin\AppData\Local\Temp\2025-02-13_72f81bb38d992efe30cb8376d1a5cbc1_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-13_72f81bb38d992efe30cb8376d1a5cbc1_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3100
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\fpxnzeit\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4348
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ehnhwhsy.exe" C:\Windows\SysWOW64\fpxnzeit\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3404
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create fpxnzeit binPath= "C:\Windows\SysWOW64\fpxnzeit\ehnhwhsy.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-13_72f81bb38d992efe30cb8376d1a5cbc1_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3980
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description fpxnzeit "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3276
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start fpxnzeit
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3540
- 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:4656
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3100 -s 1040
  2⤵
  - Program crash
  PID:4248

C:\Windows\SysWOW64\fpxnzeit\ehnhwhsy.exe
C:\Windows\SysWOW64\fpxnzeit\ehnhwhsy.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-13_72f81bb38d992efe30cb8376d1a5cbc1_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:872
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4292
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 872 -s 508
  2⤵
  - Program crash
  PID:1732

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 3100 -ip 3100
1⤵
PID:1784

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 872 -ip 872
1⤵
PID:5048

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSI2IiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDU5ODUiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxODQ0NDQzNjAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1MTE0NDM0OTA3Ii8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:4468

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\ehnhwhsy.exe

Filesize
11.0MB

MD5
518e2bdc9a878dc4dbaef3798f544304

SHA1
a286e12933d544194047d3028f7fa804a37078ca

SHA256
30bb049a985a64797c23b682915a214596d9c981675689e7e02eecdfa1b9e5ca

SHA512
1246caf3e8c73ce845b245957346722d09ec71bb7c711bd06266e0bbff9a6baab9c4e3414f0e088aaacda6ca5cc53f2bbf96cf68c87605ccf29edaed2b808348

Download Submit
memory/872-12-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/872-18-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/872-13-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/872-11-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/3100-7-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/3100-1-0x0000000000680000-0x0000000000780000-memory.dmp

Filesize
1024KB

Download
memory/3100-8-0x00000000004B0000-0x00000000004C3000-memory.dmp

Filesize
76KB

Download
memory/3100-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3100-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3100-2-0x00000000004B0000-0x00000000004C3000-memory.dmp

Filesize
76KB

Download
memory/4292-14-0x0000000000DA0000-0x0000000000DB5000-memory.dmp

Filesize
84KB

Download
memory/4292-16-0x0000000000DA0000-0x0000000000DB5000-memory.dmp

Filesize
84KB

Download
memory/4292-17-0x0000000000DA0000-0x0000000000DB5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads