tofsee | 682697c64ebaba27ea6cb073f31fcd71a75f12e466b445124e7b3ef79abdd3e9

General

Target

2025-01-30_23a30960ef2bceeb34f879d68c404b63_mafia.exe
Size

13.2MB
MD5

23a30960ef2bceeb34f879d68c404b63
SHA1

0ef65c7c1f7921ef5a1fe8abf962ea4819d1385f
SHA256

682697c64ebaba27ea6cb073f31fcd71a75f12e466b445124e7b3ef79abdd3e9
SHA512

ec99f656b16362d2d105015de16158d740cd79f7a4afd4d9d45d3c83081dadcb22ecd2c2f027f11bba4ea15e24b6d13623587edd0d53fef3fe6b22894cd9a6d4
SSDEEP

3072:JLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/n:MOMdRQr7OB0ypmMXnl8XEPM3noSWOCi

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
948	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\lgovqdsa\ImagePath = "C:\\Windows\\SysWOW64\\lgovqdsa\\oxrwonie.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	2025-01-30_23a30960ef2bceeb34f879d68c404b63_mafia.exe

Deletes itself 1 IoCs

pid	Process
2948	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2260	oxrwonie.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2260 set thread context of 2948	2260	oxrwonie.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
1776	sc.exe
2380	sc.exe
4640	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
400	1384	WerFault.exe	81
4384	2260	WerFault.exe	95

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	2025-01-30_23a30960ef2bceeb34f879d68c404b63_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	oxrwonie.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	sc.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

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1384 wrote to memory of 3760	1384	2025-01-30_23a30960ef2bceeb34f879d68c404b63_mafia.exe	85
PID 1384 wrote to memory of 3760	1384	2025-01-30_23a30960ef2bceeb34f879d68c404b63_mafia.exe	85
PID 1384 wrote to memory of 3760	1384	2025-01-30_23a30960ef2bceeb34f879d68c404b63_mafia.exe	85
PID 1384 wrote to memory of 4280	1384	2025-01-30_23a30960ef2bceeb34f879d68c404b63_mafia.exe	87
PID 1384 wrote to memory of 4280	1384	2025-01-30_23a30960ef2bceeb34f879d68c404b63_mafia.exe	87
PID 1384 wrote to memory of 4280	1384	2025-01-30_23a30960ef2bceeb34f879d68c404b63_mafia.exe	87
PID 1384 wrote to memory of 1776	1384	2025-01-30_23a30960ef2bceeb34f879d68c404b63_mafia.exe	89
PID 1384 wrote to memory of 1776	1384	2025-01-30_23a30960ef2bceeb34f879d68c404b63_mafia.exe	89
PID 1384 wrote to memory of 1776	1384	2025-01-30_23a30960ef2bceeb34f879d68c404b63_mafia.exe	89
PID 1384 wrote to memory of 2380	1384	2025-01-30_23a30960ef2bceeb34f879d68c404b63_mafia.exe	91
PID 1384 wrote to memory of 2380	1384	2025-01-30_23a30960ef2bceeb34f879d68c404b63_mafia.exe	91
PID 1384 wrote to memory of 2380	1384	2025-01-30_23a30960ef2bceeb34f879d68c404b63_mafia.exe	91
PID 1384 wrote to memory of 4640	1384	2025-01-30_23a30960ef2bceeb34f879d68c404b63_mafia.exe	93
PID 1384 wrote to memory of 4640	1384	2025-01-30_23a30960ef2bceeb34f879d68c404b63_mafia.exe	93
PID 1384 wrote to memory of 4640	1384	2025-01-30_23a30960ef2bceeb34f879d68c404b63_mafia.exe	93
PID 1384 wrote to memory of 948	1384	2025-01-30_23a30960ef2bceeb34f879d68c404b63_mafia.exe	96
PID 1384 wrote to memory of 948	1384	2025-01-30_23a30960ef2bceeb34f879d68c404b63_mafia.exe	96
PID 1384 wrote to memory of 948	1384	2025-01-30_23a30960ef2bceeb34f879d68c404b63_mafia.exe	96
PID 2260 wrote to memory of 2948	2260	oxrwonie.exe	102
PID 2260 wrote to memory of 2948	2260	oxrwonie.exe	102
PID 2260 wrote to memory of 2948	2260	oxrwonie.exe	102
PID 2260 wrote to memory of 2948	2260	oxrwonie.exe	102
PID 2260 wrote to memory of 2948	2260	oxrwonie.exe	102

C:\Users\Admin\AppData\Local\Temp\2025-01-30_23a30960ef2bceeb34f879d68c404b63_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-30_23a30960ef2bceeb34f879d68c404b63_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1384
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\lgovqdsa\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3760
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\oxrwonie.exe" C:\Windows\SysWOW64\lgovqdsa\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4280
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create lgovqdsa binPath= "C:\Windows\SysWOW64\lgovqdsa\oxrwonie.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-30_23a30960ef2bceeb34f879d68c404b63_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1776
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description lgovqdsa "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2380
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start lgovqdsa
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4640
- 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:948
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1384 -s 1284
  2⤵
  - Program crash
  PID:400

C:\Windows\SysWOW64\lgovqdsa\oxrwonie.exe
C:\Windows\SysWOW64\lgovqdsa\oxrwonie.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-30_23a30960ef2bceeb34f879d68c404b63_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2260
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2948
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2260 -s 512
  2⤵
  - Program crash
  PID:4384

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1384 -ip 1384
1⤵
PID:324

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2260 -ip 2260
1⤵
PID:636

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\oxrwonie.exe

Filesize
14.8MB

MD5
d4364d05e95824b67db490a8d95f9fdd

SHA1
ef331c4235f32556a897c8b88f147358b968cccc

SHA256
abadc617e8a448d3c4c6a6137202bb4fdbaae647610b36c9abbfa91aab40239d

SHA512
8f12bb9a3d3eb20b63946eb2a34fd3d6542383bd1ed85744f71b7945a88f559c6a15fd6cdc2483a3bec7edf96374f5bfadd2cdcd00b4937997facb12865ca830

Download Submit
memory/1384-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1384-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1384-2-0x00000000008A0000-0x00000000008B3000-memory.dmp

Filesize
76KB

Download
memory/1384-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1384-8-0x00000000008A0000-0x00000000008B3000-memory.dmp

Filesize
76KB

Download
memory/1384-1-0x00000000006A0000-0x00000000007A0000-memory.dmp

Filesize
1024KB

Download
memory/2260-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2260-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2260-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2260-19-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2948-14-0x00000000003A0000-0x00000000003B5000-memory.dmp

Filesize
84KB

Download
memory/2948-16-0x00000000003A0000-0x00000000003B5000-memory.dmp

Filesize
84KB

Download
memory/2948-17-0x00000000003A0000-0x00000000003B5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads