tofsee | 4d55358286fd76967fae14a6475c84db7ae260f4658900c333e73517aa342179

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
23-11-2024 13:59

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General

Target

4d55358286fd76967fae14a6475c84db7ae260f4658900c333e73517aa342179.exe
Size

14.9MB
MD5

ba9e3af2c7d730fa19561efec03a010b
SHA1

27b233843d99bb472e12080564613cf356e4a6a1
SHA256

4d55358286fd76967fae14a6475c84db7ae260f4658900c333e73517aa342179
SHA512

3c98f8d2a528f34a9aae207df7cc1dc893746baf417a7f28c822197c853fbbedc6dfcea149d50c0ebc6e754f985263eb3ec15f2134bce1e23b04d950c6a4363d
SSDEEP

196608:bpWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWk:d

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\dfcpxcdt = "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
2628	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\dfcpxcdt\ImagePath = "C:\\Windows\\SysWOW64\\dfcpxcdt\\labhufzy.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2372	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1980	labhufzy.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1980 set thread context of 2372	1980	labhufzy.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2768	sc.exe
2752	sc.exe
2772	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 queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\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	labhufzy.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4d55358286fd76967fae14a6475c84db7ae260f4658900c333e73517aa342179.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2224 wrote to memory of 2820	2224	4d55358286fd76967fae14a6475c84db7ae260f4658900c333e73517aa342179.exe	31
PID 2224 wrote to memory of 2820	2224	4d55358286fd76967fae14a6475c84db7ae260f4658900c333e73517aa342179.exe	31
PID 2224 wrote to memory of 2820	2224	4d55358286fd76967fae14a6475c84db7ae260f4658900c333e73517aa342179.exe	31
PID 2224 wrote to memory of 2820	2224	4d55358286fd76967fae14a6475c84db7ae260f4658900c333e73517aa342179.exe	31
PID 2224 wrote to memory of 2144	2224	4d55358286fd76967fae14a6475c84db7ae260f4658900c333e73517aa342179.exe	33
PID 2224 wrote to memory of 2144	2224	4d55358286fd76967fae14a6475c84db7ae260f4658900c333e73517aa342179.exe	33
PID 2224 wrote to memory of 2144	2224	4d55358286fd76967fae14a6475c84db7ae260f4658900c333e73517aa342179.exe	33
PID 2224 wrote to memory of 2144	2224	4d55358286fd76967fae14a6475c84db7ae260f4658900c333e73517aa342179.exe	33
PID 2224 wrote to memory of 2768	2224	4d55358286fd76967fae14a6475c84db7ae260f4658900c333e73517aa342179.exe	35
PID 2224 wrote to memory of 2768	2224	4d55358286fd76967fae14a6475c84db7ae260f4658900c333e73517aa342179.exe	35
PID 2224 wrote to memory of 2768	2224	4d55358286fd76967fae14a6475c84db7ae260f4658900c333e73517aa342179.exe	35
PID 2224 wrote to memory of 2768	2224	4d55358286fd76967fae14a6475c84db7ae260f4658900c333e73517aa342179.exe	35
PID 2224 wrote to memory of 2752	2224	4d55358286fd76967fae14a6475c84db7ae260f4658900c333e73517aa342179.exe	37
PID 2224 wrote to memory of 2752	2224	4d55358286fd76967fae14a6475c84db7ae260f4658900c333e73517aa342179.exe	37
PID 2224 wrote to memory of 2752	2224	4d55358286fd76967fae14a6475c84db7ae260f4658900c333e73517aa342179.exe	37
PID 2224 wrote to memory of 2752	2224	4d55358286fd76967fae14a6475c84db7ae260f4658900c333e73517aa342179.exe	37
PID 2224 wrote to memory of 2772	2224	4d55358286fd76967fae14a6475c84db7ae260f4658900c333e73517aa342179.exe	39
PID 2224 wrote to memory of 2772	2224	4d55358286fd76967fae14a6475c84db7ae260f4658900c333e73517aa342179.exe	39
PID 2224 wrote to memory of 2772	2224	4d55358286fd76967fae14a6475c84db7ae260f4658900c333e73517aa342179.exe	39
PID 2224 wrote to memory of 2772	2224	4d55358286fd76967fae14a6475c84db7ae260f4658900c333e73517aa342179.exe	39
PID 2224 wrote to memory of 2628	2224	4d55358286fd76967fae14a6475c84db7ae260f4658900c333e73517aa342179.exe	42
PID 2224 wrote to memory of 2628	2224	4d55358286fd76967fae14a6475c84db7ae260f4658900c333e73517aa342179.exe	42
PID 2224 wrote to memory of 2628	2224	4d55358286fd76967fae14a6475c84db7ae260f4658900c333e73517aa342179.exe	42
PID 2224 wrote to memory of 2628	2224	4d55358286fd76967fae14a6475c84db7ae260f4658900c333e73517aa342179.exe	42
PID 1980 wrote to memory of 2372	1980	labhufzy.exe	44
PID 1980 wrote to memory of 2372	1980	labhufzy.exe	44
PID 1980 wrote to memory of 2372	1980	labhufzy.exe	44
PID 1980 wrote to memory of 2372	1980	labhufzy.exe	44
PID 1980 wrote to memory of 2372	1980	labhufzy.exe	44
PID 1980 wrote to memory of 2372	1980	labhufzy.exe	44

C:\Users\Admin\AppData\Local\Temp\4d55358286fd76967fae14a6475c84db7ae260f4658900c333e73517aa342179.exe
"C:\Users\Admin\AppData\Local\Temp\4d55358286fd76967fae14a6475c84db7ae260f4658900c333e73517aa342179.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2224
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\dfcpxcdt\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2820
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\labhufzy.exe" C:\Windows\SysWOW64\dfcpxcdt\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2144
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create dfcpxcdt binPath= "C:\Windows\SysWOW64\dfcpxcdt\labhufzy.exe /d\"C:\Users\Admin\AppData\Local\Temp\4d55358286fd76967fae14a6475c84db7ae260f4658900c333e73517aa342179.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2768
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description dfcpxcdt "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2752
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start dfcpxcdt
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2772
- 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:2628

C:\Windows\SysWOW64\dfcpxcdt\labhufzy.exe
C:\Windows\SysWOW64\dfcpxcdt\labhufzy.exe /d"C:\Users\Admin\AppData\Local\Temp\4d55358286fd76967fae14a6475c84db7ae260f4658900c333e73517aa342179.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1980
- 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:2372

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\labhufzy.exe

Filesize
14.3MB

MD5
c27f03b606fc051bcb00a819a4054dab

SHA1
bf109ac1810eceac352a65557791d5127375ba8a

SHA256
5802883e9cb8487cbda5c04e1ae9c26f7accabaf2435a3d76936cb6988acf451

SHA512
e70e8d624e0ee0737267ede2ec86c1020a1f1714d11d01dfe5f1274451941b4b548cedaa4209179878c8f72a58b54ef853f5aa5522462ec87bc574431021579a

Download Submit
memory/1980-17-0x0000000000400000-0x0000000002F0D000-memory.dmp

Filesize
43.1MB

Download
memory/2224-8-0x0000000000400000-0x0000000002F0D000-memory.dmp

Filesize
43.1MB

Download
memory/2224-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2224-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2224-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2224-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2224-1-0x0000000002FA0000-0x00000000030A0000-memory.dmp

Filesize
1024KB

Download
memory/2372-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2372-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2372-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2372-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2372-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads