tofsee | df9274a5d24f3da8be705766865bc91f8dea15a89bf77e9bd95df0f309e0923e

General

Target

2025-02-12_3f40b43a6f34a4c1e3c7c0e82a0f01bf_mafia.exe
Size

11.2MB
MD5

3f40b43a6f34a4c1e3c7c0e82a0f01bf
SHA1

ce7621d238145db55ab052550e4b0e206fb770ae
SHA256

df9274a5d24f3da8be705766865bc91f8dea15a89bf77e9bd95df0f309e0923e
SHA512

11a48693a1a5e861c98d6d1c2429f041b0d4356683affbfcc62924a847849143813b9caeef11a3f16bc2a1b9d7774a005330bedabadf7702a41b4fd9cefc6ad1
SSDEEP

24576:kEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZr:BfotJ

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
43	1772	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
3224	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\iuzqbrpa\ImagePath = "C:\\Windows\\SysWOW64\\iuzqbrpa\\ajdiazuq.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	2025-02-12_3f40b43a6f34a4c1e3c7c0e82a0f01bf_mafia.exe

Deletes itself 1 IoCs

pid	Process
2988	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2496	ajdiazuq.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2496 set thread context of 2988	2496	ajdiazuq.exe	107

Launches sc.exe 3 IoCs

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

pid	Process
1324	sc.exe
1380	sc.exe
1768	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
3464	632	WerFault.exe	87
3788	2496	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	2025-02-12_3f40b43a6f34a4c1e3c7c0e82a0f01bf_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	svchost.exe
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	ajdiazuq.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
4504	MicrosoftEdgeUpdate.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 632 wrote to memory of 3376	632	2025-02-12_3f40b43a6f34a4c1e3c7c0e82a0f01bf_mafia.exe	91
PID 632 wrote to memory of 3376	632	2025-02-12_3f40b43a6f34a4c1e3c7c0e82a0f01bf_mafia.exe	91
PID 632 wrote to memory of 3376	632	2025-02-12_3f40b43a6f34a4c1e3c7c0e82a0f01bf_mafia.exe	91
PID 632 wrote to memory of 5072	632	2025-02-12_3f40b43a6f34a4c1e3c7c0e82a0f01bf_mafia.exe	93
PID 632 wrote to memory of 5072	632	2025-02-12_3f40b43a6f34a4c1e3c7c0e82a0f01bf_mafia.exe	93
PID 632 wrote to memory of 5072	632	2025-02-12_3f40b43a6f34a4c1e3c7c0e82a0f01bf_mafia.exe	93
PID 632 wrote to memory of 1324	632	2025-02-12_3f40b43a6f34a4c1e3c7c0e82a0f01bf_mafia.exe	95
PID 632 wrote to memory of 1324	632	2025-02-12_3f40b43a6f34a4c1e3c7c0e82a0f01bf_mafia.exe	95
PID 632 wrote to memory of 1324	632	2025-02-12_3f40b43a6f34a4c1e3c7c0e82a0f01bf_mafia.exe	95
PID 632 wrote to memory of 1380	632	2025-02-12_3f40b43a6f34a4c1e3c7c0e82a0f01bf_mafia.exe	97
PID 632 wrote to memory of 1380	632	2025-02-12_3f40b43a6f34a4c1e3c7c0e82a0f01bf_mafia.exe	97
PID 632 wrote to memory of 1380	632	2025-02-12_3f40b43a6f34a4c1e3c7c0e82a0f01bf_mafia.exe	97
PID 632 wrote to memory of 1768	632	2025-02-12_3f40b43a6f34a4c1e3c7c0e82a0f01bf_mafia.exe	99
PID 632 wrote to memory of 1768	632	2025-02-12_3f40b43a6f34a4c1e3c7c0e82a0f01bf_mafia.exe	99
PID 632 wrote to memory of 1768	632	2025-02-12_3f40b43a6f34a4c1e3c7c0e82a0f01bf_mafia.exe	99
PID 632 wrote to memory of 3224	632	2025-02-12_3f40b43a6f34a4c1e3c7c0e82a0f01bf_mafia.exe	102
PID 632 wrote to memory of 3224	632	2025-02-12_3f40b43a6f34a4c1e3c7c0e82a0f01bf_mafia.exe	102
PID 632 wrote to memory of 3224	632	2025-02-12_3f40b43a6f34a4c1e3c7c0e82a0f01bf_mafia.exe	102
PID 2496 wrote to memory of 2988	2496	ajdiazuq.exe	107
PID 2496 wrote to memory of 2988	2496	ajdiazuq.exe	107
PID 2496 wrote to memory of 2988	2496	ajdiazuq.exe	107
PID 2496 wrote to memory of 2988	2496	ajdiazuq.exe	107
PID 2496 wrote to memory of 2988	2496	ajdiazuq.exe	107

C:\Users\Admin\AppData\Local\Temp\2025-02-12_3f40b43a6f34a4c1e3c7c0e82a0f01bf_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-12_3f40b43a6f34a4c1e3c7c0e82a0f01bf_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:632
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\iuzqbrpa\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3376
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ajdiazuq.exe" C:\Windows\SysWOW64\iuzqbrpa\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5072
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create iuzqbrpa binPath= "C:\Windows\SysWOW64\iuzqbrpa\ajdiazuq.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-12_3f40b43a6f34a4c1e3c7c0e82a0f01bf_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1324
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description iuzqbrpa "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1380
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start iuzqbrpa
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1768
- 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:3224
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 632 -s 1244
  2⤵
  - Program crash
  PID:3464

C:\Windows\SysWOW64\iuzqbrpa\ajdiazuq.exe
C:\Windows\SysWOW64\iuzqbrpa\ajdiazuq.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-12_3f40b43a6f34a4c1e3c7c0e82a0f01bf_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2496
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2988
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2496 -s 528
  2⤵
  - Program crash
  PID:3788

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 632 -ip 632
1⤵
PID:3036

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 2496 -ip 2496
1⤵
PID:1916

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSI1IiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDcxNzgiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxOTY4MDM3MTAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1MTU3ODQ1NzA3Ii8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:4504

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\ajdiazuq.exe

Filesize
14.3MB

MD5
f75a0f9fb7621997b7ed7dfadefd3e14

SHA1
907f0af8131a16e1eed7e3b2ae3ac4441ef5be60

SHA256
361eb784c2fc3ee7b1331086d5a5b5bed3c6a1c8411d5cc879d85cb2c4640f56

SHA512
d1d586327f600fb195a13ca3395a6c208f8846cbf798b974bd86c7b5d92064b112c66f08a16f57bacb8b7e134f11c6b94f86fc0b4c910fb3f004a5990747cbe8

Download Submit
memory/632-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/632-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/632-2-0x0000000000520000-0x0000000000533000-memory.dmp

Filesize
76KB

Download
memory/632-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/632-8-0x0000000000520000-0x0000000000533000-memory.dmp

Filesize
76KB

Download
memory/632-1-0x00000000006B0000-0x00000000007B0000-memory.dmp

Filesize
1024KB

Download
memory/2496-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2496-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2496-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2496-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2988-14-0x0000000000380000-0x0000000000395000-memory.dmp

Filesize
84KB

Download
memory/2988-16-0x0000000000380000-0x0000000000395000-memory.dmp

Filesize
84KB

Download
memory/2988-17-0x0000000000380000-0x0000000000395000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads