tofsee | 380538b3005c68664dababdef5077fa2c5fe0bafa50f67bd8c1ab65068e3591e

Analysis

max time kernel
149s
max time network
122s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
30-01-2025 22:46

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General

Target

2025-01-30_4a0296c1f757e1d0a71605e1c227aa1c_mafia.exe
Size

14.5MB
MD5

4a0296c1f757e1d0a71605e1c227aa1c
SHA1

fb1a94d90537e00e3958c819d9fe5a18915d757b
SHA256

380538b3005c68664dababdef5077fa2c5fe0bafa50f67bd8c1ab65068e3591e
SHA512

b6beb3086d778d831c34a95c00a37c58d8eb05ba52facc52c775d56e6f57873d87ad4e81009c06e75fbd432b004cc5b54aad15934b42702c0fc43d0f845efb00
SSDEEP

3072:jLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/d:qOMdRQr7OB0ypmMXnl8XEPM3noSWOCW

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\fzekaals = "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
2848	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\fzekaals\ImagePath = "C:\\Windows\\SysWOW64\\fzekaals\\tyidxjgi.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
3048	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2876	tyidxjgi.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2876 set thread context of 3048	2876	tyidxjgi.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2864	sc.exe
2940	sc.exe
3012	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	netsh.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	tyidxjgi.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-30_4a0296c1f757e1d0a71605e1c227aa1c_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 1236 wrote to memory of 2292	1236	2025-01-30_4a0296c1f757e1d0a71605e1c227aa1c_mafia.exe	30
PID 1236 wrote to memory of 2292	1236	2025-01-30_4a0296c1f757e1d0a71605e1c227aa1c_mafia.exe	30
PID 1236 wrote to memory of 2292	1236	2025-01-30_4a0296c1f757e1d0a71605e1c227aa1c_mafia.exe	30
PID 1236 wrote to memory of 2292	1236	2025-01-30_4a0296c1f757e1d0a71605e1c227aa1c_mafia.exe	30
PID 1236 wrote to memory of 1916	1236	2025-01-30_4a0296c1f757e1d0a71605e1c227aa1c_mafia.exe	32
PID 1236 wrote to memory of 1916	1236	2025-01-30_4a0296c1f757e1d0a71605e1c227aa1c_mafia.exe	32
PID 1236 wrote to memory of 1916	1236	2025-01-30_4a0296c1f757e1d0a71605e1c227aa1c_mafia.exe	32
PID 1236 wrote to memory of 1916	1236	2025-01-30_4a0296c1f757e1d0a71605e1c227aa1c_mafia.exe	32
PID 1236 wrote to memory of 3012	1236	2025-01-30_4a0296c1f757e1d0a71605e1c227aa1c_mafia.exe	34
PID 1236 wrote to memory of 3012	1236	2025-01-30_4a0296c1f757e1d0a71605e1c227aa1c_mafia.exe	34
PID 1236 wrote to memory of 3012	1236	2025-01-30_4a0296c1f757e1d0a71605e1c227aa1c_mafia.exe	34
PID 1236 wrote to memory of 3012	1236	2025-01-30_4a0296c1f757e1d0a71605e1c227aa1c_mafia.exe	34
PID 1236 wrote to memory of 2864	1236	2025-01-30_4a0296c1f757e1d0a71605e1c227aa1c_mafia.exe	36
PID 1236 wrote to memory of 2864	1236	2025-01-30_4a0296c1f757e1d0a71605e1c227aa1c_mafia.exe	36
PID 1236 wrote to memory of 2864	1236	2025-01-30_4a0296c1f757e1d0a71605e1c227aa1c_mafia.exe	36
PID 1236 wrote to memory of 2864	1236	2025-01-30_4a0296c1f757e1d0a71605e1c227aa1c_mafia.exe	36
PID 1236 wrote to memory of 2940	1236	2025-01-30_4a0296c1f757e1d0a71605e1c227aa1c_mafia.exe	38
PID 1236 wrote to memory of 2940	1236	2025-01-30_4a0296c1f757e1d0a71605e1c227aa1c_mafia.exe	38
PID 1236 wrote to memory of 2940	1236	2025-01-30_4a0296c1f757e1d0a71605e1c227aa1c_mafia.exe	38
PID 1236 wrote to memory of 2940	1236	2025-01-30_4a0296c1f757e1d0a71605e1c227aa1c_mafia.exe	38
PID 1236 wrote to memory of 2848	1236	2025-01-30_4a0296c1f757e1d0a71605e1c227aa1c_mafia.exe	41
PID 1236 wrote to memory of 2848	1236	2025-01-30_4a0296c1f757e1d0a71605e1c227aa1c_mafia.exe	41
PID 1236 wrote to memory of 2848	1236	2025-01-30_4a0296c1f757e1d0a71605e1c227aa1c_mafia.exe	41
PID 1236 wrote to memory of 2848	1236	2025-01-30_4a0296c1f757e1d0a71605e1c227aa1c_mafia.exe	41
PID 2876 wrote to memory of 3048	2876	tyidxjgi.exe	43
PID 2876 wrote to memory of 3048	2876	tyidxjgi.exe	43
PID 2876 wrote to memory of 3048	2876	tyidxjgi.exe	43
PID 2876 wrote to memory of 3048	2876	tyidxjgi.exe	43
PID 2876 wrote to memory of 3048	2876	tyidxjgi.exe	43
PID 2876 wrote to memory of 3048	2876	tyidxjgi.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-01-30_4a0296c1f757e1d0a71605e1c227aa1c_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-30_4a0296c1f757e1d0a71605e1c227aa1c_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1236
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\fzekaals\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2292
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tyidxjgi.exe" C:\Windows\SysWOW64\fzekaals\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1916
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create fzekaals binPath= "C:\Windows\SysWOW64\fzekaals\tyidxjgi.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-30_4a0296c1f757e1d0a71605e1c227aa1c_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3012
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description fzekaals "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2864
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start fzekaals
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2940
- 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:2848

C:\Windows\SysWOW64\fzekaals\tyidxjgi.exe
C:\Windows\SysWOW64\fzekaals\tyidxjgi.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-30_4a0296c1f757e1d0a71605e1c227aa1c_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2876
- 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:3048

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\tyidxjgi.exe

Filesize
12.0MB

MD5
f44722e02db3af6c06565d3cbef3fb12

SHA1
309818f91d26359f6b5ba33402357d1c341e59a5

SHA256
46d1ccca4f98f8a57b8d3819ff6fa519f974f9e209b7a8b17e7954eb901710c7

SHA512
4e603528415cb181bfb7efe334dfeb93475a0258dced67ca106672e7ccbc29da864a135ded943098fe914823a29926353a0c7a76c99735db01904885307c931d

Download Submit
memory/1236-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1236-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1236-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1236-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1236-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1236-1-0x0000000000250000-0x0000000000350000-memory.dmp

Filesize
1024KB

Download
memory/2876-17-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3048-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3048-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3048-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3048-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3048-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads