tofsee | 8e7faa4458b235590284e4cdff116f603c2cab6821e2c0438942cb20660d6c69

Analysis

max time kernel
145s
max time network
122s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
01-02-2025 20:20

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General

Target

2025-02-01_814ff45a7fb2ae5f8801776025a74043_mafia.exe
Size

14.2MB
MD5

814ff45a7fb2ae5f8801776025a74043
SHA1

defdb8faa92df4c3e0a34e38ab03ad62a80b9a6e
SHA256

8e7faa4458b235590284e4cdff116f603c2cab6821e2c0438942cb20660d6c69
SHA512

e2c0d6cf35214b833fc1df59f5978c89ffb5e7c3f28bd962ccc972208b36a4763f7783c2ed6f0fde0764a9e4b330511401cad5fe8f36160e89897bff47aa0649
SSDEEP

3072:ULBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:ROMdRQr7OB0ypmMXnl8XEPM3noSWOC

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\aufdhfry = "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
2844	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\aufdhfry\ImagePath = "C:\\Windows\\SysWOW64\\aufdhfry\\prmslyi.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2840	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2892	prmslyi.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2892 set thread context of 2840	2892	prmslyi.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
1732	sc.exe
2420	sc.exe
2080	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	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	prmslyi.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-01_814ff45a7fb2ae5f8801776025a74043_mafia.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2584 wrote to memory of 1472	2584	2025-02-01_814ff45a7fb2ae5f8801776025a74043_mafia.exe	30
PID 2584 wrote to memory of 1472	2584	2025-02-01_814ff45a7fb2ae5f8801776025a74043_mafia.exe	30
PID 2584 wrote to memory of 1472	2584	2025-02-01_814ff45a7fb2ae5f8801776025a74043_mafia.exe	30
PID 2584 wrote to memory of 1472	2584	2025-02-01_814ff45a7fb2ae5f8801776025a74043_mafia.exe	30
PID 2584 wrote to memory of 2376	2584	2025-02-01_814ff45a7fb2ae5f8801776025a74043_mafia.exe	33
PID 2584 wrote to memory of 2376	2584	2025-02-01_814ff45a7fb2ae5f8801776025a74043_mafia.exe	33
PID 2584 wrote to memory of 2376	2584	2025-02-01_814ff45a7fb2ae5f8801776025a74043_mafia.exe	33
PID 2584 wrote to memory of 2376	2584	2025-02-01_814ff45a7fb2ae5f8801776025a74043_mafia.exe	33
PID 2584 wrote to memory of 1732	2584	2025-02-01_814ff45a7fb2ae5f8801776025a74043_mafia.exe	35
PID 2584 wrote to memory of 1732	2584	2025-02-01_814ff45a7fb2ae5f8801776025a74043_mafia.exe	35
PID 2584 wrote to memory of 1732	2584	2025-02-01_814ff45a7fb2ae5f8801776025a74043_mafia.exe	35
PID 2584 wrote to memory of 1732	2584	2025-02-01_814ff45a7fb2ae5f8801776025a74043_mafia.exe	35
PID 2584 wrote to memory of 2420	2584	2025-02-01_814ff45a7fb2ae5f8801776025a74043_mafia.exe	37
PID 2584 wrote to memory of 2420	2584	2025-02-01_814ff45a7fb2ae5f8801776025a74043_mafia.exe	37
PID 2584 wrote to memory of 2420	2584	2025-02-01_814ff45a7fb2ae5f8801776025a74043_mafia.exe	37
PID 2584 wrote to memory of 2420	2584	2025-02-01_814ff45a7fb2ae5f8801776025a74043_mafia.exe	37
PID 2584 wrote to memory of 2080	2584	2025-02-01_814ff45a7fb2ae5f8801776025a74043_mafia.exe	39
PID 2584 wrote to memory of 2080	2584	2025-02-01_814ff45a7fb2ae5f8801776025a74043_mafia.exe	39
PID 2584 wrote to memory of 2080	2584	2025-02-01_814ff45a7fb2ae5f8801776025a74043_mafia.exe	39
PID 2584 wrote to memory of 2080	2584	2025-02-01_814ff45a7fb2ae5f8801776025a74043_mafia.exe	39
PID 2892 wrote to memory of 2840	2892	prmslyi.exe	42
PID 2892 wrote to memory of 2840	2892	prmslyi.exe	42
PID 2892 wrote to memory of 2840	2892	prmslyi.exe	42
PID 2892 wrote to memory of 2840	2892	prmslyi.exe	42
PID 2892 wrote to memory of 2840	2892	prmslyi.exe	42
PID 2892 wrote to memory of 2840	2892	prmslyi.exe	42
PID 2584 wrote to memory of 2844	2584	2025-02-01_814ff45a7fb2ae5f8801776025a74043_mafia.exe	43
PID 2584 wrote to memory of 2844	2584	2025-02-01_814ff45a7fb2ae5f8801776025a74043_mafia.exe	43
PID 2584 wrote to memory of 2844	2584	2025-02-01_814ff45a7fb2ae5f8801776025a74043_mafia.exe	43
PID 2584 wrote to memory of 2844	2584	2025-02-01_814ff45a7fb2ae5f8801776025a74043_mafia.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-02-01_814ff45a7fb2ae5f8801776025a74043_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-01_814ff45a7fb2ae5f8801776025a74043_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2584
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\aufdhfry\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1472
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\prmslyi.exe" C:\Windows\SysWOW64\aufdhfry\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2376
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create aufdhfry binPath= "C:\Windows\SysWOW64\aufdhfry\prmslyi.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-01_814ff45a7fb2ae5f8801776025a74043_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1732
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description aufdhfry "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2420
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start aufdhfry
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2080
- 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:2844

C:\Windows\SysWOW64\aufdhfry\prmslyi.exe
C:\Windows\SysWOW64\aufdhfry\prmslyi.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-01_814ff45a7fb2ae5f8801776025a74043_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2892
- 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:2840

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\prmslyi.exe

Filesize
12.3MB

MD5
42d8173fa39ac3056e18185bfe30ec64

SHA1
d0db18c7679fdf6ac3b81dcc6519d9da47485c05

SHA256
cce28c7640a0d8bb48fcb34dea167b95ec8434ef2a734cc32095cc5ca497417a

SHA512
98683d275e895a89182afca191b1a3bfa365b5559812cc7eedd1f53d03c8c62ea13b07c4a00e48ef1415a32cf62151d7ef552784626f178d4334495e7df18e26

Download Submit
memory/2584-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2584-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2584-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2584-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2584-1-0x0000000000250000-0x0000000000350000-memory.dmp

Filesize
1024KB

Download
memory/2584-14-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2840-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2840-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2840-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2840-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2840-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2892-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads