tofsee | ec9ac642df40ab28d21938e59b719607beac2bafa200591f58df8d25eebaa3e5

Analysis

max time kernel
141s
max time network
123s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
07-02-2025 01:59

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General

Target

2025-02-07_83fb012a3af17f7ee03fa6b70fb92d99_mafia.exe
Size

14.6MB
MD5

83fb012a3af17f7ee03fa6b70fb92d99
SHA1

23e602b8d722fb7ef210a986e5b652ba3dc2e02d
SHA256

ec9ac642df40ab28d21938e59b719607beac2bafa200591f58df8d25eebaa3e5
SHA512

542d239756bb821d579ea836633122c5334c9c93b69e1b9355add7a56561351cd61643d85b71d239e596d94bf172aabcb974a9131fb43d1a247d18915f745b3a
SSDEEP

24576:x6WdLQkyQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQw:YWdLQk

Score

10^/10

tofsee defense_evasion discovery execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

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

Windows security bypass 2 TTPs 1 IoCs

defense_evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\onbxousg = "0"	svchost.exe

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
2816	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\onbxousg\ImagePath = "C:\\Windows\\SysWOW64\\onbxousg\\fncgtraa.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2212	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3008	fncgtraa.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3008 set thread context of 2212	3008	fncgtraa.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2884	sc.exe
2808	sc.exe
2944	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 queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-07_83fb012a3af17f7ee03fa6b70fb92d99_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	fncgtraa.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

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 3064 wrote to memory of 2624	3064	2025-02-07_83fb012a3af17f7ee03fa6b70fb92d99_mafia.exe	30
PID 3064 wrote to memory of 2624	3064	2025-02-07_83fb012a3af17f7ee03fa6b70fb92d99_mafia.exe	30
PID 3064 wrote to memory of 2624	3064	2025-02-07_83fb012a3af17f7ee03fa6b70fb92d99_mafia.exe	30
PID 3064 wrote to memory of 2624	3064	2025-02-07_83fb012a3af17f7ee03fa6b70fb92d99_mafia.exe	30
PID 3064 wrote to memory of 2536	3064	2025-02-07_83fb012a3af17f7ee03fa6b70fb92d99_mafia.exe	32
PID 3064 wrote to memory of 2536	3064	2025-02-07_83fb012a3af17f7ee03fa6b70fb92d99_mafia.exe	32
PID 3064 wrote to memory of 2536	3064	2025-02-07_83fb012a3af17f7ee03fa6b70fb92d99_mafia.exe	32
PID 3064 wrote to memory of 2536	3064	2025-02-07_83fb012a3af17f7ee03fa6b70fb92d99_mafia.exe	32
PID 3064 wrote to memory of 2884	3064	2025-02-07_83fb012a3af17f7ee03fa6b70fb92d99_mafia.exe	34
PID 3064 wrote to memory of 2884	3064	2025-02-07_83fb012a3af17f7ee03fa6b70fb92d99_mafia.exe	34
PID 3064 wrote to memory of 2884	3064	2025-02-07_83fb012a3af17f7ee03fa6b70fb92d99_mafia.exe	34
PID 3064 wrote to memory of 2884	3064	2025-02-07_83fb012a3af17f7ee03fa6b70fb92d99_mafia.exe	34
PID 3064 wrote to memory of 2808	3064	2025-02-07_83fb012a3af17f7ee03fa6b70fb92d99_mafia.exe	36
PID 3064 wrote to memory of 2808	3064	2025-02-07_83fb012a3af17f7ee03fa6b70fb92d99_mafia.exe	36
PID 3064 wrote to memory of 2808	3064	2025-02-07_83fb012a3af17f7ee03fa6b70fb92d99_mafia.exe	36
PID 3064 wrote to memory of 2808	3064	2025-02-07_83fb012a3af17f7ee03fa6b70fb92d99_mafia.exe	36
PID 3064 wrote to memory of 2944	3064	2025-02-07_83fb012a3af17f7ee03fa6b70fb92d99_mafia.exe	38
PID 3064 wrote to memory of 2944	3064	2025-02-07_83fb012a3af17f7ee03fa6b70fb92d99_mafia.exe	38
PID 3064 wrote to memory of 2944	3064	2025-02-07_83fb012a3af17f7ee03fa6b70fb92d99_mafia.exe	38
PID 3064 wrote to memory of 2944	3064	2025-02-07_83fb012a3af17f7ee03fa6b70fb92d99_mafia.exe	38
PID 3008 wrote to memory of 2212	3008	fncgtraa.exe	41
PID 3008 wrote to memory of 2212	3008	fncgtraa.exe	41
PID 3008 wrote to memory of 2212	3008	fncgtraa.exe	41
PID 3008 wrote to memory of 2212	3008	fncgtraa.exe	41
PID 3008 wrote to memory of 2212	3008	fncgtraa.exe	41
PID 3008 wrote to memory of 2212	3008	fncgtraa.exe	41
PID 3064 wrote to memory of 2816	3064	2025-02-07_83fb012a3af17f7ee03fa6b70fb92d99_mafia.exe	42
PID 3064 wrote to memory of 2816	3064	2025-02-07_83fb012a3af17f7ee03fa6b70fb92d99_mafia.exe	42
PID 3064 wrote to memory of 2816	3064	2025-02-07_83fb012a3af17f7ee03fa6b70fb92d99_mafia.exe	42
PID 3064 wrote to memory of 2816	3064	2025-02-07_83fb012a3af17f7ee03fa6b70fb92d99_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-02-07_83fb012a3af17f7ee03fa6b70fb92d99_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-07_83fb012a3af17f7ee03fa6b70fb92d99_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3064
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\onbxousg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2624
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\fncgtraa.exe" C:\Windows\SysWOW64\onbxousg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2536
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create onbxousg binPath= "C:\Windows\SysWOW64\onbxousg\fncgtraa.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-07_83fb012a3af17f7ee03fa6b70fb92d99_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2884
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description onbxousg "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2808
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start onbxousg
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2944
- 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:2816

C:\Windows\SysWOW64\onbxousg\fncgtraa.exe
C:\Windows\SysWOW64\onbxousg\fncgtraa.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-07_83fb012a3af17f7ee03fa6b70fb92d99_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3008
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2212

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

T1569

Service Execution

T1569.002

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\fncgtraa.exe

Filesize
12.5MB

MD5
af050381bf1dd9613111816630dcfff6

SHA1
cbe53f12bcf01b2073aed44e2effeee4d63edf12

SHA256
186f6899471e65484b9b02ecbe40c16d45deeb953ab15b10f5640892cd1af06c

SHA512
915365e78cea854c7747f69e9b67ff3a41577469d6f4d067f3376ac5ec07f37f1d02a5df9bcbf806949a64a4489c6a5dd304b9e973cac1e75f290a05353ebd6e

Download Submit
memory/2212-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2212-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2212-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2212-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2212-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3008-13-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/3064-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3064-1-0x0000000000250000-0x0000000000350000-memory.dmp

Filesize
1024KB

Download
memory/3064-2-0x00000000003C0000-0x00000000003D3000-memory.dmp

Filesize
76KB

Download
memory/3064-14-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/3064-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3064-15-0x00000000003C0000-0x00000000003D3000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads