tofsee | b7926cf92364746b29b6baac37d1c473e3f7166c6c126f0a6dd7fd16e267c0ee

Analysis

max time kernel
143s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
31/01/2025, 04:24

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General

Target

2025-01-31_99a86586ce92357554b176ac1613f8d9_mafia.exe
Size

13.6MB
MD5

99a86586ce92357554b176ac1613f8d9
SHA1

dd45e53e86738f93dd81633d64a47ec513258faf
SHA256

b7926cf92364746b29b6baac37d1c473e3f7166c6c126f0a6dd7fd16e267c0ee
SHA512

cdd656f75e80f41fd4e5075d30a13b92e71786cb2e89065802f2cf37db0c3ac9ce0e9ca2b3ea0d3dbbb783c2821169276d5dfe1f0c2d7880efb90e4c5d86a6f7
SSDEEP

6144:YLQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQY:NTYe+D2jFu+iZoUFhAz

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\ibizbnhh = "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
2744	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\ibizbnhh\ImagePath = "C:\\Windows\\SysWOW64\\ibizbnhh\\fwecmhoc.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2912	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2772	fwecmhoc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2772 set thread context of 2912	2772	fwecmhoc.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2944	sc.exe
2748	sc.exe
2888	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	fwecmhoc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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	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	2025-01-31_99a86586ce92357554b176ac1613f8d9_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2168 wrote to memory of 2064	2168	2025-01-31_99a86586ce92357554b176ac1613f8d9_mafia.exe	30
PID 2168 wrote to memory of 2064	2168	2025-01-31_99a86586ce92357554b176ac1613f8d9_mafia.exe	30
PID 2168 wrote to memory of 2064	2168	2025-01-31_99a86586ce92357554b176ac1613f8d9_mafia.exe	30
PID 2168 wrote to memory of 2064	2168	2025-01-31_99a86586ce92357554b176ac1613f8d9_mafia.exe	30
PID 2168 wrote to memory of 2348	2168	2025-01-31_99a86586ce92357554b176ac1613f8d9_mafia.exe	32
PID 2168 wrote to memory of 2348	2168	2025-01-31_99a86586ce92357554b176ac1613f8d9_mafia.exe	32
PID 2168 wrote to memory of 2348	2168	2025-01-31_99a86586ce92357554b176ac1613f8d9_mafia.exe	32
PID 2168 wrote to memory of 2348	2168	2025-01-31_99a86586ce92357554b176ac1613f8d9_mafia.exe	32
PID 2168 wrote to memory of 2944	2168	2025-01-31_99a86586ce92357554b176ac1613f8d9_mafia.exe	35
PID 2168 wrote to memory of 2944	2168	2025-01-31_99a86586ce92357554b176ac1613f8d9_mafia.exe	35
PID 2168 wrote to memory of 2944	2168	2025-01-31_99a86586ce92357554b176ac1613f8d9_mafia.exe	35
PID 2168 wrote to memory of 2944	2168	2025-01-31_99a86586ce92357554b176ac1613f8d9_mafia.exe	35
PID 2168 wrote to memory of 2748	2168	2025-01-31_99a86586ce92357554b176ac1613f8d9_mafia.exe	37
PID 2168 wrote to memory of 2748	2168	2025-01-31_99a86586ce92357554b176ac1613f8d9_mafia.exe	37
PID 2168 wrote to memory of 2748	2168	2025-01-31_99a86586ce92357554b176ac1613f8d9_mafia.exe	37
PID 2168 wrote to memory of 2748	2168	2025-01-31_99a86586ce92357554b176ac1613f8d9_mafia.exe	37
PID 2168 wrote to memory of 2888	2168	2025-01-31_99a86586ce92357554b176ac1613f8d9_mafia.exe	39
PID 2168 wrote to memory of 2888	2168	2025-01-31_99a86586ce92357554b176ac1613f8d9_mafia.exe	39
PID 2168 wrote to memory of 2888	2168	2025-01-31_99a86586ce92357554b176ac1613f8d9_mafia.exe	39
PID 2168 wrote to memory of 2888	2168	2025-01-31_99a86586ce92357554b176ac1613f8d9_mafia.exe	39
PID 2168 wrote to memory of 2744	2168	2025-01-31_99a86586ce92357554b176ac1613f8d9_mafia.exe	42
PID 2168 wrote to memory of 2744	2168	2025-01-31_99a86586ce92357554b176ac1613f8d9_mafia.exe	42
PID 2168 wrote to memory of 2744	2168	2025-01-31_99a86586ce92357554b176ac1613f8d9_mafia.exe	42
PID 2168 wrote to memory of 2744	2168	2025-01-31_99a86586ce92357554b176ac1613f8d9_mafia.exe	42
PID 2772 wrote to memory of 2912	2772	fwecmhoc.exe	44
PID 2772 wrote to memory of 2912	2772	fwecmhoc.exe	44
PID 2772 wrote to memory of 2912	2772	fwecmhoc.exe	44
PID 2772 wrote to memory of 2912	2772	fwecmhoc.exe	44
PID 2772 wrote to memory of 2912	2772	fwecmhoc.exe	44
PID 2772 wrote to memory of 2912	2772	fwecmhoc.exe	44

C:\Users\Admin\AppData\Local\Temp\2025-01-31_99a86586ce92357554b176ac1613f8d9_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-31_99a86586ce92357554b176ac1613f8d9_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2168
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ibizbnhh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2064
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\fwecmhoc.exe" C:\Windows\SysWOW64\ibizbnhh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2348
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ibizbnhh binPath= "C:\Windows\SysWOW64\ibizbnhh\fwecmhoc.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-31_99a86586ce92357554b176ac1613f8d9_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2944
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ibizbnhh "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2748
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ibizbnhh
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2888
- 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:2744

C:\Windows\SysWOW64\ibizbnhh\fwecmhoc.exe
C:\Windows\SysWOW64\ibizbnhh\fwecmhoc.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-31_99a86586ce92357554b176ac1613f8d9_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2772
- 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:2912

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\fwecmhoc.exe

Filesize
10.3MB

MD5
eda4731f20a11adc49cc2b163434f1c9

SHA1
885c4dca124ca2a22d3d5050f3272fc450ab0a30

SHA256
65c842bbe3110ce0c8c219e3fcf88982303a58df9843d6b05c301a642034753f

SHA512
f2965819da1cf1b086097d2fe24e2ca01df0971fedc453e62b90ad6060ee2f8565f2ddef6392dc769d352dbb3e5e47cb48e5504dd932b68f8cc8ea6d3a627138

Download Submit
memory/2168-1-0x0000000000930000-0x0000000000A30000-memory.dmp

Filesize
1024KB

Download
memory/2168-3-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2168-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2168-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2168-8-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2772-15-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2912-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2912-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2912-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2912-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2912-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads