tofsee | ba13a02f9ea114abf19218e4462e2cac876e3cf111493d70074fcf127cea0480

General

Target

2025-01-17_85271b69eb731a256374c604127c5523_mafia.exe
Size

12.1MB
MD5

85271b69eb731a256374c604127c5523
SHA1

1da1e2ff84c623c8d9df0e368fb618389ad2a567
SHA256

ba13a02f9ea114abf19218e4462e2cac876e3cf111493d70074fcf127cea0480
SHA512

eb810ee705d67ee7dce3d71bf2097e3de448c3e6ccd2dce61c81f28bcb5bee77f7ed310d18a8bd0daab114662ecd2359547355db42386a814ca7a18fdcdf16b9
SSDEEP

24576:LpomTTN9tttttttttttttttttttttttttttttttttttttttttttttttttttttttV:doo

Score

10^/10

tofsee discovery evasion 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

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
4600	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\fdzxabiv\ImagePath = "C:\\Windows\\SysWOW64\\fdzxabiv\\rpyzietp.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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	2025-01-17_85271b69eb731a256374c604127c5523_mafia.exe

Deletes itself 1 IoCs

pid	Process
4056	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1608	rpyzietp.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1608 set thread context of 4056	1608	rpyzietp.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
464	sc.exe
3908	sc.exe
1392	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
3204	4512	WerFault.exe	81
2508	1608	WerFault.exe	92

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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rpyzietp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-17_85271b69eb731a256374c604127c5523_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	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	netsh.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4512 wrote to memory of 2348	4512	2025-01-17_85271b69eb731a256374c604127c5523_mafia.exe	82
PID 4512 wrote to memory of 2348	4512	2025-01-17_85271b69eb731a256374c604127c5523_mafia.exe	82
PID 4512 wrote to memory of 2348	4512	2025-01-17_85271b69eb731a256374c604127c5523_mafia.exe	82
PID 4512 wrote to memory of 2672	4512	2025-01-17_85271b69eb731a256374c604127c5523_mafia.exe	84
PID 4512 wrote to memory of 2672	4512	2025-01-17_85271b69eb731a256374c604127c5523_mafia.exe	84
PID 4512 wrote to memory of 2672	4512	2025-01-17_85271b69eb731a256374c604127c5523_mafia.exe	84
PID 4512 wrote to memory of 464	4512	2025-01-17_85271b69eb731a256374c604127c5523_mafia.exe	86
PID 4512 wrote to memory of 464	4512	2025-01-17_85271b69eb731a256374c604127c5523_mafia.exe	86
PID 4512 wrote to memory of 464	4512	2025-01-17_85271b69eb731a256374c604127c5523_mafia.exe	86
PID 4512 wrote to memory of 3908	4512	2025-01-17_85271b69eb731a256374c604127c5523_mafia.exe	88
PID 4512 wrote to memory of 3908	4512	2025-01-17_85271b69eb731a256374c604127c5523_mafia.exe	88
PID 4512 wrote to memory of 3908	4512	2025-01-17_85271b69eb731a256374c604127c5523_mafia.exe	88
PID 4512 wrote to memory of 1392	4512	2025-01-17_85271b69eb731a256374c604127c5523_mafia.exe	90
PID 4512 wrote to memory of 1392	4512	2025-01-17_85271b69eb731a256374c604127c5523_mafia.exe	90
PID 4512 wrote to memory of 1392	4512	2025-01-17_85271b69eb731a256374c604127c5523_mafia.exe	90
PID 4512 wrote to memory of 4600	4512	2025-01-17_85271b69eb731a256374c604127c5523_mafia.exe	93
PID 4512 wrote to memory of 4600	4512	2025-01-17_85271b69eb731a256374c604127c5523_mafia.exe	93
PID 4512 wrote to memory of 4600	4512	2025-01-17_85271b69eb731a256374c604127c5523_mafia.exe	93
PID 1608 wrote to memory of 4056	1608	rpyzietp.exe	98
PID 1608 wrote to memory of 4056	1608	rpyzietp.exe	98
PID 1608 wrote to memory of 4056	1608	rpyzietp.exe	98
PID 1608 wrote to memory of 4056	1608	rpyzietp.exe	98
PID 1608 wrote to memory of 4056	1608	rpyzietp.exe	98

C:\Users\Admin\AppData\Local\Temp\2025-01-17_85271b69eb731a256374c604127c5523_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-17_85271b69eb731a256374c604127c5523_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4512
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\fdzxabiv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2348
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\rpyzietp.exe" C:\Windows\SysWOW64\fdzxabiv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2672
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create fdzxabiv binPath= "C:\Windows\SysWOW64\fdzxabiv\rpyzietp.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-17_85271b69eb731a256374c604127c5523_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:464
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description fdzxabiv "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3908
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start fdzxabiv
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1392
- 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:4600
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4512 -s 1304
  2⤵
  - Program crash
  PID:3204

C:\Windows\SysWOW64\fdzxabiv\rpyzietp.exe
C:\Windows\SysWOW64\fdzxabiv\rpyzietp.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-17_85271b69eb731a256374c604127c5523_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1608
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4056
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1608 -s 528
  2⤵
  - Program crash
  PID:2508

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4512 -ip 4512
1⤵
PID:3456

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 1608 -ip 1608
1⤵
PID:5080

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\rpyzietp.exe

Filesize
11.4MB

MD5
786aca66a110281c444c72b4fb639b1f

SHA1
75a253ece1ca80fc007869fac3b58466f72264d3

SHA256
f0f58a4fdc2fb5b0277f7e33b84028b50fc3cb62d976fcfb18afab88875d3973

SHA512
231d5d95c44db1dfb3d877520cfb244de8ee2b1de3d6d898363589d4c9fb2346964e282084187c0f2109fe451f8257497e9366eb2033848068f1e2db5a62bdf7

Download Submit
memory/1608-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1608-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1608-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1608-19-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4056-16-0x00000000001C0000-0x00000000001D5000-memory.dmp

Filesize
84KB

Download
memory/4056-14-0x00000000001C0000-0x00000000001D5000-memory.dmp

Filesize
84KB

Download
memory/4056-17-0x00000000001C0000-0x00000000001D5000-memory.dmp

Filesize
84KB

Download
memory/4512-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4512-2-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download
memory/4512-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4512-8-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download
memory/4512-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4512-1-0x00000000005A0000-0x00000000006A0000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads