tofsee | 4d83294566e99f0fe97b104ecf6f7acc1db4ef3b354d71d28f098cbaae919606

Analysis

max time kernel
119s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
20-11-2024 23:08

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General

Target

4d83294566e99f0fe97b104ecf6f7acc1db4ef3b354d71d28f098cbaae919606.exe
Size

11.6MB
MD5

855fb8e778ba661c134f1978e5585f9b
SHA1

861477ea63f73f1031c4580b1a181c67b6222726
SHA256

4d83294566e99f0fe97b104ecf6f7acc1db4ef3b354d71d28f098cbaae919606
SHA512

d1780f4524fce67bdcf795d4c1a359480ff18eb3bedb17d8cca69ef0092a6a70e9206632471e14839842ec79c7c5cff0da3d594e94d5a8981cfcf4d863992670
SSDEEP

196608:6MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMQ:6MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMQ

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

quadoil.ru

lakeflex.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\fgoggysy = "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
2668	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\fgoggysy\ImagePath = "C:\\Windows\\SysWOW64\\fgoggysy\\qnydblif.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2196	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2760	qnydblif.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2760 set thread context of 2196	2760	qnydblif.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2712	sc.exe
2776	sc.exe
2916	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	4d83294566e99f0fe97b104ecf6f7acc1db4ef3b354d71d28f098cbaae919606.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	qnydblif.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	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1812 wrote to memory of 2696	1812	4d83294566e99f0fe97b104ecf6f7acc1db4ef3b354d71d28f098cbaae919606.exe	30
PID 1812 wrote to memory of 2696	1812	4d83294566e99f0fe97b104ecf6f7acc1db4ef3b354d71d28f098cbaae919606.exe	30
PID 1812 wrote to memory of 2696	1812	4d83294566e99f0fe97b104ecf6f7acc1db4ef3b354d71d28f098cbaae919606.exe	30
PID 1812 wrote to memory of 2696	1812	4d83294566e99f0fe97b104ecf6f7acc1db4ef3b354d71d28f098cbaae919606.exe	30
PID 1812 wrote to memory of 2804	1812	4d83294566e99f0fe97b104ecf6f7acc1db4ef3b354d71d28f098cbaae919606.exe	32
PID 1812 wrote to memory of 2804	1812	4d83294566e99f0fe97b104ecf6f7acc1db4ef3b354d71d28f098cbaae919606.exe	32
PID 1812 wrote to memory of 2804	1812	4d83294566e99f0fe97b104ecf6f7acc1db4ef3b354d71d28f098cbaae919606.exe	32
PID 1812 wrote to memory of 2804	1812	4d83294566e99f0fe97b104ecf6f7acc1db4ef3b354d71d28f098cbaae919606.exe	32
PID 1812 wrote to memory of 2712	1812	4d83294566e99f0fe97b104ecf6f7acc1db4ef3b354d71d28f098cbaae919606.exe	34
PID 1812 wrote to memory of 2712	1812	4d83294566e99f0fe97b104ecf6f7acc1db4ef3b354d71d28f098cbaae919606.exe	34
PID 1812 wrote to memory of 2712	1812	4d83294566e99f0fe97b104ecf6f7acc1db4ef3b354d71d28f098cbaae919606.exe	34
PID 1812 wrote to memory of 2712	1812	4d83294566e99f0fe97b104ecf6f7acc1db4ef3b354d71d28f098cbaae919606.exe	34
PID 1812 wrote to memory of 2776	1812	4d83294566e99f0fe97b104ecf6f7acc1db4ef3b354d71d28f098cbaae919606.exe	36
PID 1812 wrote to memory of 2776	1812	4d83294566e99f0fe97b104ecf6f7acc1db4ef3b354d71d28f098cbaae919606.exe	36
PID 1812 wrote to memory of 2776	1812	4d83294566e99f0fe97b104ecf6f7acc1db4ef3b354d71d28f098cbaae919606.exe	36
PID 1812 wrote to memory of 2776	1812	4d83294566e99f0fe97b104ecf6f7acc1db4ef3b354d71d28f098cbaae919606.exe	36
PID 1812 wrote to memory of 2916	1812	4d83294566e99f0fe97b104ecf6f7acc1db4ef3b354d71d28f098cbaae919606.exe	38
PID 1812 wrote to memory of 2916	1812	4d83294566e99f0fe97b104ecf6f7acc1db4ef3b354d71d28f098cbaae919606.exe	38
PID 1812 wrote to memory of 2916	1812	4d83294566e99f0fe97b104ecf6f7acc1db4ef3b354d71d28f098cbaae919606.exe	38
PID 1812 wrote to memory of 2916	1812	4d83294566e99f0fe97b104ecf6f7acc1db4ef3b354d71d28f098cbaae919606.exe	38
PID 1812 wrote to memory of 2668	1812	4d83294566e99f0fe97b104ecf6f7acc1db4ef3b354d71d28f098cbaae919606.exe	41
PID 1812 wrote to memory of 2668	1812	4d83294566e99f0fe97b104ecf6f7acc1db4ef3b354d71d28f098cbaae919606.exe	41
PID 1812 wrote to memory of 2668	1812	4d83294566e99f0fe97b104ecf6f7acc1db4ef3b354d71d28f098cbaae919606.exe	41
PID 1812 wrote to memory of 2668	1812	4d83294566e99f0fe97b104ecf6f7acc1db4ef3b354d71d28f098cbaae919606.exe	41
PID 2760 wrote to memory of 2196	2760	qnydblif.exe	43
PID 2760 wrote to memory of 2196	2760	qnydblif.exe	43
PID 2760 wrote to memory of 2196	2760	qnydblif.exe	43
PID 2760 wrote to memory of 2196	2760	qnydblif.exe	43
PID 2760 wrote to memory of 2196	2760	qnydblif.exe	43
PID 2760 wrote to memory of 2196	2760	qnydblif.exe	43

C:\Users\Admin\AppData\Local\Temp\4d83294566e99f0fe97b104ecf6f7acc1db4ef3b354d71d28f098cbaae919606.exe
"C:\Users\Admin\AppData\Local\Temp\4d83294566e99f0fe97b104ecf6f7acc1db4ef3b354d71d28f098cbaae919606.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1812
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\fgoggysy\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2696
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qnydblif.exe" C:\Windows\SysWOW64\fgoggysy\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2804
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create fgoggysy binPath= "C:\Windows\SysWOW64\fgoggysy\qnydblif.exe /d\"C:\Users\Admin\AppData\Local\Temp\4d83294566e99f0fe97b104ecf6f7acc1db4ef3b354d71d28f098cbaae919606.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2712
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description fgoggysy "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2776
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start fgoggysy
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2916
- 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:2668

C:\Windows\SysWOW64\fgoggysy\qnydblif.exe
C:\Windows\SysWOW64\fgoggysy\qnydblif.exe /d"C:\Users\Admin\AppData\Local\Temp\4d83294566e99f0fe97b104ecf6f7acc1db4ef3b354d71d28f098cbaae919606.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2760
- 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:2196

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\qnydblif.exe

Filesize
12.0MB

MD5
9bba204688fa19da872607dd0edc077f

SHA1
d6342f9138e71bbfecf9b86ea846fea27c3c12fb

SHA256
0f2ad0016be02a9ee1824cc77d56ef1bee248095b5e235ee9b73c1590f86f78d

SHA512
002118ff0da571c941b144a6f3faf2144cb0f32edd3c2cd6d2665898a28b638062973382a3cb264504341dd8375d4bd10fb085cd002e555d96d56c7d291022fa

Download Submit
memory/1812-7-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download
memory/1812-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1812-1-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/1812-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1812-8-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/1812-0-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download
memory/1812-6-0x0000000000400000-0x0000000002F05000-memory.dmp

Filesize
43.0MB

Download
memory/2196-10-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2196-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2196-13-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2196-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2196-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2760-14-0x0000000000400000-0x0000000002F05000-memory.dmp

Filesize
43.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads