tofsee | fe542c7f8c7cb981dd05796f8247d39ac48385362b67abc3e81dc57e03b61a85

General

Target

2025-02-08_3b595e7feaff99576272dbb446047eaf_mafia.exe
Size

13.8MB
MD5

3b595e7feaff99576272dbb446047eaf
SHA1

e0610bdf187d260e72939fce07de411defc8f0a9
SHA256

fe542c7f8c7cb981dd05796f8247d39ac48385362b67abc3e81dc57e03b61a85
SHA512

13ae29e5318086128355c1e00bce7e5bfaa95ac5028900121289e056227a21046dbfa68c0a30f484ad58e3187e92ff1dd366208f9e9b248e90bd76c933a589a9
SSDEEP

3072:ELBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:BOMdRQr7OB0ypmMXnl8XEPM3noSWOC

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
62	3588	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
3876	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\qdsdjcag\ImagePath = "C:\\Windows\\SysWOW64\\qdsdjcag\\gtfcvinx.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-1-5-21-189444705-1272902858-1305688695-1000\Control Panel\International\Geo\Nation	2025-02-08_3b595e7feaff99576272dbb446047eaf_mafia.exe

Deletes itself 1 IoCs

pid	Process
964	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3188	gtfcvinx.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3188 set thread context of 964	3188	gtfcvinx.exe	105

Launches sc.exe 3 IoCs

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

pid	Process
3552	sc.exe
4068	sc.exe
2116	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
4996	2528	WerFault.exe	85
1272	3188	WerFault.exe	99

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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-08_3b595e7feaff99576272dbb446047eaf_mafia.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	gtfcvinx.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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
856	MicrosoftEdgeUpdate.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2528 wrote to memory of 2104	2528	2025-02-08_3b595e7feaff99576272dbb446047eaf_mafia.exe	89
PID 2528 wrote to memory of 2104	2528	2025-02-08_3b595e7feaff99576272dbb446047eaf_mafia.exe	89
PID 2528 wrote to memory of 2104	2528	2025-02-08_3b595e7feaff99576272dbb446047eaf_mafia.exe	89
PID 2528 wrote to memory of 696	2528	2025-02-08_3b595e7feaff99576272dbb446047eaf_mafia.exe	91
PID 2528 wrote to memory of 696	2528	2025-02-08_3b595e7feaff99576272dbb446047eaf_mafia.exe	91
PID 2528 wrote to memory of 696	2528	2025-02-08_3b595e7feaff99576272dbb446047eaf_mafia.exe	91
PID 2528 wrote to memory of 3552	2528	2025-02-08_3b595e7feaff99576272dbb446047eaf_mafia.exe	93
PID 2528 wrote to memory of 3552	2528	2025-02-08_3b595e7feaff99576272dbb446047eaf_mafia.exe	93
PID 2528 wrote to memory of 3552	2528	2025-02-08_3b595e7feaff99576272dbb446047eaf_mafia.exe	93
PID 2528 wrote to memory of 4068	2528	2025-02-08_3b595e7feaff99576272dbb446047eaf_mafia.exe	95
PID 2528 wrote to memory of 4068	2528	2025-02-08_3b595e7feaff99576272dbb446047eaf_mafia.exe	95
PID 2528 wrote to memory of 4068	2528	2025-02-08_3b595e7feaff99576272dbb446047eaf_mafia.exe	95
PID 2528 wrote to memory of 2116	2528	2025-02-08_3b595e7feaff99576272dbb446047eaf_mafia.exe	97
PID 2528 wrote to memory of 2116	2528	2025-02-08_3b595e7feaff99576272dbb446047eaf_mafia.exe	97
PID 2528 wrote to memory of 2116	2528	2025-02-08_3b595e7feaff99576272dbb446047eaf_mafia.exe	97
PID 2528 wrote to memory of 3876	2528	2025-02-08_3b595e7feaff99576272dbb446047eaf_mafia.exe	100
PID 2528 wrote to memory of 3876	2528	2025-02-08_3b595e7feaff99576272dbb446047eaf_mafia.exe	100
PID 2528 wrote to memory of 3876	2528	2025-02-08_3b595e7feaff99576272dbb446047eaf_mafia.exe	100
PID 3188 wrote to memory of 964	3188	gtfcvinx.exe	105
PID 3188 wrote to memory of 964	3188	gtfcvinx.exe	105
PID 3188 wrote to memory of 964	3188	gtfcvinx.exe	105
PID 3188 wrote to memory of 964	3188	gtfcvinx.exe	105
PID 3188 wrote to memory of 964	3188	gtfcvinx.exe	105

C:\Users\Admin\AppData\Local\Temp\2025-02-08_3b595e7feaff99576272dbb446047eaf_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-08_3b595e7feaff99576272dbb446047eaf_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2528
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qdsdjcag\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2104
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\gtfcvinx.exe" C:\Windows\SysWOW64\qdsdjcag\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:696
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create qdsdjcag binPath= "C:\Windows\SysWOW64\qdsdjcag\gtfcvinx.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-08_3b595e7feaff99576272dbb446047eaf_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3552
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description qdsdjcag "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4068
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start qdsdjcag
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2116
- 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:3876
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2528 -s 1196
  2⤵
  - Program crash
  PID:4996

C:\Windows\SysWOW64\qdsdjcag\gtfcvinx.exe
C:\Windows\SysWOW64\qdsdjcag\gtfcvinx.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-08_3b595e7feaff99576272dbb446047eaf_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3188
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:964
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3188 -s 508
  2⤵
  - Program crash
  PID:1272

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 2528 -ip 2528
1⤵
PID:3680

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 3188 -ip 3188
1⤵
PID:4132

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIxIiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDU5MjEiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxODE5ODA3NzAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1MjM2NTUyOTk1Ii8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:856

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\gtfcvinx.exe

Filesize
13.0MB

MD5
7258a318e21a4b80ec75c84ee17db8bf

SHA1
8c2689cbd665e0e91fda60b1470b85cf940f7d17

SHA256
f9fc46c3a8057c774de2f923af8013f042b07b30e5145869ea37d12ad8f093f6

SHA512
796f3bb4d46f90e146c72f965f8f50fadcb14e5ad012f4c311a9dac246bbc2204b00fc72c138b5e01baf5455c35fa2cd4c99d0c8a8f870e9ec0b98799d76d8e2

Download Submit
memory/964-14-0x0000000000F90000-0x0000000000FA5000-memory.dmp

Filesize
84KB

Download
memory/964-17-0x0000000000F90000-0x0000000000FA5000-memory.dmp

Filesize
84KB

Download
memory/964-16-0x0000000000F90000-0x0000000000FA5000-memory.dmp

Filesize
84KB

Download
memory/2528-8-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/2528-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2528-1-0x0000000000590000-0x0000000000690000-memory.dmp

Filesize
1024KB

Download
memory/2528-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2528-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2528-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/3188-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3188-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3188-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3188-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads