tofsee | 1ae6599bd7f5bdc497a81a9bb41a0f6bc42cbc9e8732fcc43ce9673bda24399f

Analysis

max time kernel
144s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
13-01-2025 19:41

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General

Target

2025-01-13_af2bf1938e054d716d7c0c2ec40e7f7b_mafia.exe
Size

14.4MB
MD5

af2bf1938e054d716d7c0c2ec40e7f7b
SHA1

629db22de0467561fcbdc2e15f716e22c9d28eb0
SHA256

1ae6599bd7f5bdc497a81a9bb41a0f6bc42cbc9e8732fcc43ce9673bda24399f
SHA512

0f12812f76a4f44c48cbcd6b75fdf4ae6555cbf043c118011efa63841d0ab5b63a79aa1c53458de16ded28b8c80ededd56f51112069e8fbe1a140225ae3e98f2
SSDEEP

24576:j6WdLQkyQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQv:uWdLQk

Score

10^/10

tofsee discovery evasion 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

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\nhgztskj = "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

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2572	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\nhgztskj\ImagePath = "C:\\Windows\\SysWOW64\\nhgztskj\\rdcqbltn.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
1860	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2856	rdcqbltn.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2856 set thread context of 1860	2856	rdcqbltn.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
1692	sc.exe
812	sc.exe
2812	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	cmd.exe
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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-13_af2bf1938e054d716d7c0c2ec40e7f7b_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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rdcqbltn.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 576 wrote to memory of 2516	576	2025-01-13_af2bf1938e054d716d7c0c2ec40e7f7b_mafia.exe	31
PID 576 wrote to memory of 2516	576	2025-01-13_af2bf1938e054d716d7c0c2ec40e7f7b_mafia.exe	31
PID 576 wrote to memory of 2516	576	2025-01-13_af2bf1938e054d716d7c0c2ec40e7f7b_mafia.exe	31
PID 576 wrote to memory of 2516	576	2025-01-13_af2bf1938e054d716d7c0c2ec40e7f7b_mafia.exe	31
PID 576 wrote to memory of 3016	576	2025-01-13_af2bf1938e054d716d7c0c2ec40e7f7b_mafia.exe	33
PID 576 wrote to memory of 3016	576	2025-01-13_af2bf1938e054d716d7c0c2ec40e7f7b_mafia.exe	33
PID 576 wrote to memory of 3016	576	2025-01-13_af2bf1938e054d716d7c0c2ec40e7f7b_mafia.exe	33
PID 576 wrote to memory of 3016	576	2025-01-13_af2bf1938e054d716d7c0c2ec40e7f7b_mafia.exe	33
PID 576 wrote to memory of 1692	576	2025-01-13_af2bf1938e054d716d7c0c2ec40e7f7b_mafia.exe	35
PID 576 wrote to memory of 1692	576	2025-01-13_af2bf1938e054d716d7c0c2ec40e7f7b_mafia.exe	35
PID 576 wrote to memory of 1692	576	2025-01-13_af2bf1938e054d716d7c0c2ec40e7f7b_mafia.exe	35
PID 576 wrote to memory of 1692	576	2025-01-13_af2bf1938e054d716d7c0c2ec40e7f7b_mafia.exe	35
PID 576 wrote to memory of 812	576	2025-01-13_af2bf1938e054d716d7c0c2ec40e7f7b_mafia.exe	37
PID 576 wrote to memory of 812	576	2025-01-13_af2bf1938e054d716d7c0c2ec40e7f7b_mafia.exe	37
PID 576 wrote to memory of 812	576	2025-01-13_af2bf1938e054d716d7c0c2ec40e7f7b_mafia.exe	37
PID 576 wrote to memory of 812	576	2025-01-13_af2bf1938e054d716d7c0c2ec40e7f7b_mafia.exe	37
PID 576 wrote to memory of 2812	576	2025-01-13_af2bf1938e054d716d7c0c2ec40e7f7b_mafia.exe	39
PID 576 wrote to memory of 2812	576	2025-01-13_af2bf1938e054d716d7c0c2ec40e7f7b_mafia.exe	39
PID 576 wrote to memory of 2812	576	2025-01-13_af2bf1938e054d716d7c0c2ec40e7f7b_mafia.exe	39
PID 576 wrote to memory of 2812	576	2025-01-13_af2bf1938e054d716d7c0c2ec40e7f7b_mafia.exe	39
PID 2856 wrote to memory of 1860	2856	rdcqbltn.exe	42
PID 2856 wrote to memory of 1860	2856	rdcqbltn.exe	42
PID 2856 wrote to memory of 1860	2856	rdcqbltn.exe	42
PID 2856 wrote to memory of 1860	2856	rdcqbltn.exe	42
PID 2856 wrote to memory of 1860	2856	rdcqbltn.exe	42
PID 2856 wrote to memory of 1860	2856	rdcqbltn.exe	42
PID 576 wrote to memory of 2572	576	2025-01-13_af2bf1938e054d716d7c0c2ec40e7f7b_mafia.exe	43
PID 576 wrote to memory of 2572	576	2025-01-13_af2bf1938e054d716d7c0c2ec40e7f7b_mafia.exe	43
PID 576 wrote to memory of 2572	576	2025-01-13_af2bf1938e054d716d7c0c2ec40e7f7b_mafia.exe	43
PID 576 wrote to memory of 2572	576	2025-01-13_af2bf1938e054d716d7c0c2ec40e7f7b_mafia.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-01-13_af2bf1938e054d716d7c0c2ec40e7f7b_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-13_af2bf1938e054d716d7c0c2ec40e7f7b_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:576
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\nhgztskj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2516
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\rdcqbltn.exe" C:\Windows\SysWOW64\nhgztskj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3016
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create nhgztskj binPath= "C:\Windows\SysWOW64\nhgztskj\rdcqbltn.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-13_af2bf1938e054d716d7c0c2ec40e7f7b_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1692
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description nhgztskj "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:812
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start nhgztskj
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2812
- 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:2572

C:\Windows\SysWOW64\nhgztskj\rdcqbltn.exe
C:\Windows\SysWOW64\nhgztskj\rdcqbltn.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-13_af2bf1938e054d716d7c0c2ec40e7f7b_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2856
- 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:1860

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\rdcqbltn.exe

Filesize
14.7MB

MD5
ea9189ef0703903392617d49b67b0dd2

SHA1
7e5c25eef2668dce18fca2fcbbe78aff146ad2b1

SHA256
5788dc3f0d9d3726a2e98c2da26814b165c0d822ed8d36e0bb5d5fda49bf4bae

SHA512
721bc1bb993c26145b24e9fb86eb18441cfe0fd2f036e5f50e24beecacf3240a3c53d88d544d45ced5ff075d8c7ccf8a9a1e40638c340098c3a26e71f20fa27c

Download Submit
memory/576-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/576-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/576-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/576-14-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/576-1-0x00000000005C0000-0x00000000006C0000-memory.dmp

Filesize
1024KB

Download
memory/576-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1860-8-0x00000000000A0000-0x00000000000B5000-memory.dmp

Filesize
84KB

Download
memory/1860-11-0x00000000000A0000-0x00000000000B5000-memory.dmp

Filesize
84KB

Download
memory/1860-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1860-17-0x00000000000A0000-0x00000000000B5000-memory.dmp

Filesize
84KB

Download
memory/1860-18-0x00000000000A0000-0x00000000000B5000-memory.dmp

Filesize
84KB

Download
memory/2856-13-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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