tofsee | e2587b5e9b7e1a5cee8ca6e879c3bdffcc94af309376e20069ed58fb7f73188e

Analysis

max time kernel
144s
max time network
119s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
24/01/2025, 18:57

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General

Target

2025-01-24_6232e72d87c35db87261dca8187d3428_mafia.exe
Size

11.3MB
MD5

6232e72d87c35db87261dca8187d3428
SHA1

2284e0079e5607e9fcfccaaf9d13689ac6a88647
SHA256

e2587b5e9b7e1a5cee8ca6e879c3bdffcc94af309376e20069ed58fb7f73188e
SHA512

9ed0033b8ba19b208682281825137f3c32c8d48dc551bcfee014802df85af9e80447841d9537af73bd66646c42f576791de973101b3c90520163ce620a736afd
SSDEEP

24576:QEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZP:Nfot

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\sebvslqj = "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
3008	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\sebvslqj\ImagePath = "C:\\Windows\\SysWOW64\\sebvslqj\\ylxunafp.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2820	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3012	ylxunafp.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3012 set thread context of 2820	3012	ylxunafp.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2176	sc.exe
1560	sc.exe
1716	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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-24_6232e72d87c35db87261dca8187d3428_mafia.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	ylxunafp.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	netsh.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1572 wrote to memory of 2284	1572	2025-01-24_6232e72d87c35db87261dca8187d3428_mafia.exe	28
PID 1572 wrote to memory of 2284	1572	2025-01-24_6232e72d87c35db87261dca8187d3428_mafia.exe	28
PID 1572 wrote to memory of 2284	1572	2025-01-24_6232e72d87c35db87261dca8187d3428_mafia.exe	28
PID 1572 wrote to memory of 2284	1572	2025-01-24_6232e72d87c35db87261dca8187d3428_mafia.exe	28
PID 1572 wrote to memory of 3016	1572	2025-01-24_6232e72d87c35db87261dca8187d3428_mafia.exe	30
PID 1572 wrote to memory of 3016	1572	2025-01-24_6232e72d87c35db87261dca8187d3428_mafia.exe	30
PID 1572 wrote to memory of 3016	1572	2025-01-24_6232e72d87c35db87261dca8187d3428_mafia.exe	30
PID 1572 wrote to memory of 3016	1572	2025-01-24_6232e72d87c35db87261dca8187d3428_mafia.exe	30
PID 1572 wrote to memory of 2176	1572	2025-01-24_6232e72d87c35db87261dca8187d3428_mafia.exe	33
PID 1572 wrote to memory of 2176	1572	2025-01-24_6232e72d87c35db87261dca8187d3428_mafia.exe	33
PID 1572 wrote to memory of 2176	1572	2025-01-24_6232e72d87c35db87261dca8187d3428_mafia.exe	33
PID 1572 wrote to memory of 2176	1572	2025-01-24_6232e72d87c35db87261dca8187d3428_mafia.exe	33
PID 1572 wrote to memory of 1560	1572	2025-01-24_6232e72d87c35db87261dca8187d3428_mafia.exe	36
PID 1572 wrote to memory of 1560	1572	2025-01-24_6232e72d87c35db87261dca8187d3428_mafia.exe	36
PID 1572 wrote to memory of 1560	1572	2025-01-24_6232e72d87c35db87261dca8187d3428_mafia.exe	36
PID 1572 wrote to memory of 1560	1572	2025-01-24_6232e72d87c35db87261dca8187d3428_mafia.exe	36
PID 1572 wrote to memory of 1716	1572	2025-01-24_6232e72d87c35db87261dca8187d3428_mafia.exe	38
PID 1572 wrote to memory of 1716	1572	2025-01-24_6232e72d87c35db87261dca8187d3428_mafia.exe	38
PID 1572 wrote to memory of 1716	1572	2025-01-24_6232e72d87c35db87261dca8187d3428_mafia.exe	38
PID 1572 wrote to memory of 1716	1572	2025-01-24_6232e72d87c35db87261dca8187d3428_mafia.exe	38
PID 1572 wrote to memory of 3008	1572	2025-01-24_6232e72d87c35db87261dca8187d3428_mafia.exe	41
PID 1572 wrote to memory of 3008	1572	2025-01-24_6232e72d87c35db87261dca8187d3428_mafia.exe	41
PID 1572 wrote to memory of 3008	1572	2025-01-24_6232e72d87c35db87261dca8187d3428_mafia.exe	41
PID 1572 wrote to memory of 3008	1572	2025-01-24_6232e72d87c35db87261dca8187d3428_mafia.exe	41
PID 3012 wrote to memory of 2820	3012	ylxunafp.exe	43
PID 3012 wrote to memory of 2820	3012	ylxunafp.exe	43
PID 3012 wrote to memory of 2820	3012	ylxunafp.exe	43
PID 3012 wrote to memory of 2820	3012	ylxunafp.exe	43
PID 3012 wrote to memory of 2820	3012	ylxunafp.exe	43
PID 3012 wrote to memory of 2820	3012	ylxunafp.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-01-24_6232e72d87c35db87261dca8187d3428_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-24_6232e72d87c35db87261dca8187d3428_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1572
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\sebvslqj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2284
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ylxunafp.exe" C:\Windows\SysWOW64\sebvslqj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3016
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create sebvslqj binPath= "C:\Windows\SysWOW64\sebvslqj\ylxunafp.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-24_6232e72d87c35db87261dca8187d3428_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2176
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description sebvslqj "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1560
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start sebvslqj
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1716
- 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:3008

C:\Windows\SysWOW64\sebvslqj\ylxunafp.exe
C:\Windows\SysWOW64\sebvslqj\ylxunafp.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-24_6232e72d87c35db87261dca8187d3428_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3012
- 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:2820

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\ylxunafp.exe

Filesize
13.7MB

MD5
b88204b566b28005c6ed693c2d9f6913

SHA1
f865a0fcf521337d613f655b2606db11a623017c

SHA256
9863f2b5840accd6d692c9c435faaea859fd3c8ea7d88e27426ddf2c7a876750

SHA512
14aeecd190391e3ed8a01734014da2f39f96bfe802f5318c140b63fbebab2f08483ff20f2a29052086a5a302d9eda8ed7e55e85de7d3c6d6c85db03aeb4cd5fe

Download Submit
memory/1572-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1572-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1572-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1572-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1572-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1572-1-0x0000000000540000-0x0000000000640000-memory.dmp

Filesize
1024KB

Download
memory/2820-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2820-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2820-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2820-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2820-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3012-17-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads