tofsee | de2f8364ba3eec3963be343dbe4483357092b80173664702d0bb9069c8a7da08

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
24-11-2024 04:10

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

de2f8364ba3eec3963be343dbe4483357092b80173664702d0bb9069c8a7da08.exe
Size

10.6MB
MD5

599879f0d1c0cd8dbab720e9b8b9f963
SHA1

af7e923a872f9480fa8880e13684bf5a8dcf3db3
SHA256

de2f8364ba3eec3963be343dbe4483357092b80173664702d0bb9069c8a7da08
SHA512

09a5a69e59f4f23b9be160da9d8d6eb87e594ce100acddf0d968d7c4600fdf9ca96b90df7add41fc8607f4fee357176d45b5b7c0dcdbda9d4572f8b4a6c605fb
SSDEEP

6144:jeaRFeYiZtnsLs/Xyihb124uKPoifbY/3sGIU5N5Z:jF7/iZtRXpu3ijwf5TZ

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

defeatwax.ru

refabyd.info

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\mzgzayal = "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
2840	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\mzgzayal\ImagePath = "C:\\Windows\\SysWOW64\\mzgzayal\\vawompb.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2628	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3004	vawompb.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3004 set thread context of 2628	3004	vawompb.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2264	sc.exe
2864	sc.exe
2860	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vawompb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	de2f8364ba3eec3963be343dbe4483357092b80173664702d0bb9069c8a7da08.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

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 3044 wrote to memory of 2528	3044	de2f8364ba3eec3963be343dbe4483357092b80173664702d0bb9069c8a7da08.exe	30
PID 3044 wrote to memory of 2528	3044	de2f8364ba3eec3963be343dbe4483357092b80173664702d0bb9069c8a7da08.exe	30
PID 3044 wrote to memory of 2528	3044	de2f8364ba3eec3963be343dbe4483357092b80173664702d0bb9069c8a7da08.exe	30
PID 3044 wrote to memory of 2528	3044	de2f8364ba3eec3963be343dbe4483357092b80173664702d0bb9069c8a7da08.exe	30
PID 3044 wrote to memory of 812	3044	de2f8364ba3eec3963be343dbe4483357092b80173664702d0bb9069c8a7da08.exe	32
PID 3044 wrote to memory of 812	3044	de2f8364ba3eec3963be343dbe4483357092b80173664702d0bb9069c8a7da08.exe	32
PID 3044 wrote to memory of 812	3044	de2f8364ba3eec3963be343dbe4483357092b80173664702d0bb9069c8a7da08.exe	32
PID 3044 wrote to memory of 812	3044	de2f8364ba3eec3963be343dbe4483357092b80173664702d0bb9069c8a7da08.exe	32
PID 3044 wrote to memory of 2264	3044	de2f8364ba3eec3963be343dbe4483357092b80173664702d0bb9069c8a7da08.exe	34
PID 3044 wrote to memory of 2264	3044	de2f8364ba3eec3963be343dbe4483357092b80173664702d0bb9069c8a7da08.exe	34
PID 3044 wrote to memory of 2264	3044	de2f8364ba3eec3963be343dbe4483357092b80173664702d0bb9069c8a7da08.exe	34
PID 3044 wrote to memory of 2264	3044	de2f8364ba3eec3963be343dbe4483357092b80173664702d0bb9069c8a7da08.exe	34
PID 3044 wrote to memory of 2864	3044	de2f8364ba3eec3963be343dbe4483357092b80173664702d0bb9069c8a7da08.exe	36
PID 3044 wrote to memory of 2864	3044	de2f8364ba3eec3963be343dbe4483357092b80173664702d0bb9069c8a7da08.exe	36
PID 3044 wrote to memory of 2864	3044	de2f8364ba3eec3963be343dbe4483357092b80173664702d0bb9069c8a7da08.exe	36
PID 3044 wrote to memory of 2864	3044	de2f8364ba3eec3963be343dbe4483357092b80173664702d0bb9069c8a7da08.exe	36
PID 3044 wrote to memory of 2860	3044	de2f8364ba3eec3963be343dbe4483357092b80173664702d0bb9069c8a7da08.exe	38
PID 3044 wrote to memory of 2860	3044	de2f8364ba3eec3963be343dbe4483357092b80173664702d0bb9069c8a7da08.exe	38
PID 3044 wrote to memory of 2860	3044	de2f8364ba3eec3963be343dbe4483357092b80173664702d0bb9069c8a7da08.exe	38
PID 3044 wrote to memory of 2860	3044	de2f8364ba3eec3963be343dbe4483357092b80173664702d0bb9069c8a7da08.exe	38
PID 3044 wrote to memory of 2840	3044	de2f8364ba3eec3963be343dbe4483357092b80173664702d0bb9069c8a7da08.exe	41
PID 3044 wrote to memory of 2840	3044	de2f8364ba3eec3963be343dbe4483357092b80173664702d0bb9069c8a7da08.exe	41
PID 3044 wrote to memory of 2840	3044	de2f8364ba3eec3963be343dbe4483357092b80173664702d0bb9069c8a7da08.exe	41
PID 3044 wrote to memory of 2840	3044	de2f8364ba3eec3963be343dbe4483357092b80173664702d0bb9069c8a7da08.exe	41
PID 3004 wrote to memory of 2628	3004	vawompb.exe	43
PID 3004 wrote to memory of 2628	3004	vawompb.exe	43
PID 3004 wrote to memory of 2628	3004	vawompb.exe	43
PID 3004 wrote to memory of 2628	3004	vawompb.exe	43
PID 3004 wrote to memory of 2628	3004	vawompb.exe	43
PID 3004 wrote to memory of 2628	3004	vawompb.exe	43

C:\Users\Admin\AppData\Local\Temp\de2f8364ba3eec3963be343dbe4483357092b80173664702d0bb9069c8a7da08.exe
"C:\Users\Admin\AppData\Local\Temp\de2f8364ba3eec3963be343dbe4483357092b80173664702d0bb9069c8a7da08.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3044
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\mzgzayal\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2528
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\vawompb.exe" C:\Windows\SysWOW64\mzgzayal\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:812
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create mzgzayal binPath= "C:\Windows\SysWOW64\mzgzayal\vawompb.exe /d\"C:\Users\Admin\AppData\Local\Temp\de2f8364ba3eec3963be343dbe4483357092b80173664702d0bb9069c8a7da08.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2264
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description mzgzayal "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2864
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start mzgzayal
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2860
- 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:2840

C:\Windows\SysWOW64\mzgzayal\vawompb.exe
C:\Windows\SysWOW64\mzgzayal\vawompb.exe /d"C:\Users\Admin\AppData\Local\Temp\de2f8364ba3eec3963be343dbe4483357092b80173664702d0bb9069c8a7da08.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3004
- 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:2628

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\vawompb.exe

Filesize
11.4MB

MD5
c6f054af80806514cc6b9e577d678ea0

SHA1
494169ee46fac3356496d8bd6f5222c50fd479a3

SHA256
3ac2fdc8bae0d4190fa6ca4ba5b09d27c74972e8450b60792882e3e8091633e6

SHA512
1b2c688345384aa2608363afc8858ad34a909145920a4ca4545118971dbbe75e5c9d7a90a2f2e9edf1e3595fa5307644c3e0ef930a45795b52f55c4ab32cbcd2

Download Submit
memory/2628-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2628-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2628-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2628-17-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2628-16-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2628-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/3004-15-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/3044-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3044-1-0x0000000000A00000-0x0000000000B00000-memory.dmp

Filesize
1024KB

Download
memory/3044-8-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/3044-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3044-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/3044-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads