tofsee | 85e53d805fdc69c8dedafa896ceb421bd636a3d94652671768af4fbca7e89ca0

General

Target

2025-01-11_5d4530f4539414ec9edc8c7af562a62a_mafia.exe
Size

13.9MB
MD5

5d4530f4539414ec9edc8c7af562a62a
SHA1

bf6c1885985e624fa874eb3b7f6ba0ee7a8d786d
SHA256

85e53d805fdc69c8dedafa896ceb421bd636a3d94652671768af4fbca7e89ca0
SHA512

716ef912db4aff47256ae0922ce8e9377feac7336187d511c4c0d1de99a591a97b5e185ab1ac5670cc0be7fe56d083e2c9f3408562fc5d75e2b43f8a1bed3501
SSDEEP

393216:+XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX3:

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
4632	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\fmxoaaba\ImagePath = "C:\\Windows\\SysWOW64\\fmxoaaba\\fhciboy.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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	2025-01-11_5d4530f4539414ec9edc8c7af562a62a_mafia.exe

Deletes itself 1 IoCs

pid	Process
4832	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1324	fhciboy.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1324 set thread context of 4832	1324	fhciboy.exe	94

Launches sc.exe 3 IoCs

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

pid	Process
5008	sc.exe
3916	sc.exe
464	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

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	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	2025-01-11_5d4530f4539414ec9edc8c7af562a62a_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	fhciboy.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 224 wrote to memory of 3616	224	2025-01-11_5d4530f4539414ec9edc8c7af562a62a_mafia.exe	83
PID 224 wrote to memory of 3616	224	2025-01-11_5d4530f4539414ec9edc8c7af562a62a_mafia.exe	83
PID 224 wrote to memory of 3616	224	2025-01-11_5d4530f4539414ec9edc8c7af562a62a_mafia.exe	83
PID 224 wrote to memory of 2724	224	2025-01-11_5d4530f4539414ec9edc8c7af562a62a_mafia.exe	85
PID 224 wrote to memory of 2724	224	2025-01-11_5d4530f4539414ec9edc8c7af562a62a_mafia.exe	85
PID 224 wrote to memory of 2724	224	2025-01-11_5d4530f4539414ec9edc8c7af562a62a_mafia.exe	85
PID 224 wrote to memory of 464	224	2025-01-11_5d4530f4539414ec9edc8c7af562a62a_mafia.exe	87
PID 224 wrote to memory of 464	224	2025-01-11_5d4530f4539414ec9edc8c7af562a62a_mafia.exe	87
PID 224 wrote to memory of 464	224	2025-01-11_5d4530f4539414ec9edc8c7af562a62a_mafia.exe	87
PID 224 wrote to memory of 5008	224	2025-01-11_5d4530f4539414ec9edc8c7af562a62a_mafia.exe	89
PID 224 wrote to memory of 5008	224	2025-01-11_5d4530f4539414ec9edc8c7af562a62a_mafia.exe	89
PID 224 wrote to memory of 5008	224	2025-01-11_5d4530f4539414ec9edc8c7af562a62a_mafia.exe	89
PID 224 wrote to memory of 3916	224	2025-01-11_5d4530f4539414ec9edc8c7af562a62a_mafia.exe	91
PID 224 wrote to memory of 3916	224	2025-01-11_5d4530f4539414ec9edc8c7af562a62a_mafia.exe	91
PID 224 wrote to memory of 3916	224	2025-01-11_5d4530f4539414ec9edc8c7af562a62a_mafia.exe	91
PID 1324 wrote to memory of 4832	1324	fhciboy.exe	94
PID 1324 wrote to memory of 4832	1324	fhciboy.exe	94
PID 1324 wrote to memory of 4832	1324	fhciboy.exe	94
PID 224 wrote to memory of 4632	224	2025-01-11_5d4530f4539414ec9edc8c7af562a62a_mafia.exe	95
PID 224 wrote to memory of 4632	224	2025-01-11_5d4530f4539414ec9edc8c7af562a62a_mafia.exe	95
PID 224 wrote to memory of 4632	224	2025-01-11_5d4530f4539414ec9edc8c7af562a62a_mafia.exe	95
PID 1324 wrote to memory of 4832	1324	fhciboy.exe	94
PID 1324 wrote to memory of 4832	1324	fhciboy.exe	94

C:\Users\Admin\AppData\Local\Temp\2025-01-11_5d4530f4539414ec9edc8c7af562a62a_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-11_5d4530f4539414ec9edc8c7af562a62a_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:224
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\fmxoaaba\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3616
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\fhciboy.exe" C:\Windows\SysWOW64\fmxoaaba\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2724
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create fmxoaaba binPath= "C:\Windows\SysWOW64\fmxoaaba\fhciboy.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-11_5d4530f4539414ec9edc8c7af562a62a_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 fmxoaaba "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5008
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start fmxoaaba
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3916
- 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:4632

C:\Windows\SysWOW64\fmxoaaba\fhciboy.exe
C:\Windows\SysWOW64\fmxoaaba\fhciboy.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-11_5d4530f4539414ec9edc8c7af562a62a_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1324
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4832

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\fhciboy.exe

Filesize
13.3MB

MD5
f343626f2efb58c53e9024bd03676650

SHA1
c33792673d138029fc2f66c314b229b9d3c907e4

SHA256
5c43ec92a8e7260c51e34b341eb6c142eb2024ab0feb0e24069154549f9ac861

SHA512
a64f73a15441847329ed102e11dfa34f02af3ea41791843e2c59a66e890f1b78ec78fd4932c7e9c8c064c5007a02ef7e95b66f15c0a23c392e00f0392b785f8a

Download Submit
memory/224-14-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/224-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/224-2-0x0000000000530000-0x0000000000543000-memory.dmp

Filesize
76KB

Download
memory/224-1-0x0000000000660000-0x0000000000760000-memory.dmp

Filesize
1024KB

Download
memory/224-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/224-15-0x0000000000530000-0x0000000000543000-memory.dmp

Filesize
76KB

Download
memory/1324-8-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/1324-19-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/1324-10-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/1324-9-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/4832-17-0x0000000000D10000-0x0000000000D25000-memory.dmp

Filesize
84KB

Download
memory/4832-11-0x0000000000D10000-0x0000000000D25000-memory.dmp

Filesize
84KB

Download
memory/4832-20-0x0000000000D10000-0x0000000000D25000-memory.dmp

Filesize
84KB

Download
memory/4832-21-0x0000000000D10000-0x0000000000D25000-memory.dmp

Filesize
84KB

Download
memory/4832-22-0x0000000000D10000-0x0000000000D25000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads