tofsee | 71c8fa2e70bca29e60ee2f1dfcf36248aee5b23025b4aec2ecb20e5954a434d7

Analysis

max time kernel
145s
max time network
124s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
29/01/2025, 17:36

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2025-01-29_d843097807b69f23d9e9b92c78a6aef6_mafia.exe
Size

12.7MB
MD5

d843097807b69f23d9e9b92c78a6aef6
SHA1

b169759391428e792bf917b88eac0d08a96a2e0d
SHA256

71c8fa2e70bca29e60ee2f1dfcf36248aee5b23025b4aec2ecb20e5954a434d7
SHA512

76fd4d1f5fb81d17e25ae675b29c5f947ab87c6a26250e29ec07bb821ea0310b7ed1d98d90e56da95968aef0fb821aa9632391d1d33ba05c1823331eaa8d0674
SSDEEP

3072:4LBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:1OMdRQr7OB0ypmMXnl8XEPM3noSWOC

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\lexfqmez = "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
2452	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\lexfqmez\ImagePath = "C:\\Windows\\SysWOW64\\lexfqmez\\dcqsgdew.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
3044	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2584	dcqsgdew.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2584 set thread context of 3044	2584	dcqsgdew.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2724	sc.exe
2736	sc.exe
796	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dcqsgdew.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-29_d843097807b69f23d9e9b92c78a6aef6_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2720 wrote to memory of 2712	2720	2025-01-29_d843097807b69f23d9e9b92c78a6aef6_mafia.exe	30
PID 2720 wrote to memory of 2712	2720	2025-01-29_d843097807b69f23d9e9b92c78a6aef6_mafia.exe	30
PID 2720 wrote to memory of 2712	2720	2025-01-29_d843097807b69f23d9e9b92c78a6aef6_mafia.exe	30
PID 2720 wrote to memory of 2712	2720	2025-01-29_d843097807b69f23d9e9b92c78a6aef6_mafia.exe	30
PID 2720 wrote to memory of 2696	2720	2025-01-29_d843097807b69f23d9e9b92c78a6aef6_mafia.exe	32
PID 2720 wrote to memory of 2696	2720	2025-01-29_d843097807b69f23d9e9b92c78a6aef6_mafia.exe	32
PID 2720 wrote to memory of 2696	2720	2025-01-29_d843097807b69f23d9e9b92c78a6aef6_mafia.exe	32
PID 2720 wrote to memory of 2696	2720	2025-01-29_d843097807b69f23d9e9b92c78a6aef6_mafia.exe	32
PID 2720 wrote to memory of 2724	2720	2025-01-29_d843097807b69f23d9e9b92c78a6aef6_mafia.exe	34
PID 2720 wrote to memory of 2724	2720	2025-01-29_d843097807b69f23d9e9b92c78a6aef6_mafia.exe	34
PID 2720 wrote to memory of 2724	2720	2025-01-29_d843097807b69f23d9e9b92c78a6aef6_mafia.exe	34
PID 2720 wrote to memory of 2724	2720	2025-01-29_d843097807b69f23d9e9b92c78a6aef6_mafia.exe	34
PID 2720 wrote to memory of 2736	2720	2025-01-29_d843097807b69f23d9e9b92c78a6aef6_mafia.exe	36
PID 2720 wrote to memory of 2736	2720	2025-01-29_d843097807b69f23d9e9b92c78a6aef6_mafia.exe	36
PID 2720 wrote to memory of 2736	2720	2025-01-29_d843097807b69f23d9e9b92c78a6aef6_mafia.exe	36
PID 2720 wrote to memory of 2736	2720	2025-01-29_d843097807b69f23d9e9b92c78a6aef6_mafia.exe	36
PID 2720 wrote to memory of 796	2720	2025-01-29_d843097807b69f23d9e9b92c78a6aef6_mafia.exe	38
PID 2720 wrote to memory of 796	2720	2025-01-29_d843097807b69f23d9e9b92c78a6aef6_mafia.exe	38
PID 2720 wrote to memory of 796	2720	2025-01-29_d843097807b69f23d9e9b92c78a6aef6_mafia.exe	38
PID 2720 wrote to memory of 796	2720	2025-01-29_d843097807b69f23d9e9b92c78a6aef6_mafia.exe	38
PID 2584 wrote to memory of 3044	2584	dcqsgdew.exe	41
PID 2584 wrote to memory of 3044	2584	dcqsgdew.exe	41
PID 2584 wrote to memory of 3044	2584	dcqsgdew.exe	41
PID 2584 wrote to memory of 3044	2584	dcqsgdew.exe	41
PID 2584 wrote to memory of 3044	2584	dcqsgdew.exe	41
PID 2584 wrote to memory of 3044	2584	dcqsgdew.exe	41
PID 2720 wrote to memory of 2452	2720	2025-01-29_d843097807b69f23d9e9b92c78a6aef6_mafia.exe	42
PID 2720 wrote to memory of 2452	2720	2025-01-29_d843097807b69f23d9e9b92c78a6aef6_mafia.exe	42
PID 2720 wrote to memory of 2452	2720	2025-01-29_d843097807b69f23d9e9b92c78a6aef6_mafia.exe	42
PID 2720 wrote to memory of 2452	2720	2025-01-29_d843097807b69f23d9e9b92c78a6aef6_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-01-29_d843097807b69f23d9e9b92c78a6aef6_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-29_d843097807b69f23d9e9b92c78a6aef6_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2720
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\lexfqmez\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2712
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\dcqsgdew.exe" C:\Windows\SysWOW64\lexfqmez\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2696
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create lexfqmez binPath= "C:\Windows\SysWOW64\lexfqmez\dcqsgdew.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-29_d843097807b69f23d9e9b92c78a6aef6_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2724
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description lexfqmez "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2736
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start lexfqmez
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:796
- 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:2452

C:\Windows\SysWOW64\lexfqmez\dcqsgdew.exe
C:\Windows\SysWOW64\lexfqmez\dcqsgdew.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-29_d843097807b69f23d9e9b92c78a6aef6_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2584
- 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:3044

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\dcqsgdew.exe

Filesize
13.7MB

MD5
8752ea21725d02a08b552e429935a9b0

SHA1
f6ccf36c54027ae325824bd47d557450ed991f1e

SHA256
a9f1efd49757a648665e18f348e75de9133a423bba18e0cce1cf49f1a7b2f9a0

SHA512
b10a27416cce70699733513a36d757623ab77aa3a6e9d5413ff2471d87ec9346529f545d857540fec84995282df2f642b1f470374525a18672788ee706a423a8

Download Submit
memory/2584-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2720-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2720-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2720-1-0x0000000000580000-0x0000000000680000-memory.dmp

Filesize
1024KB

Download
memory/2720-14-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2720-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2720-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/3044-11-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/3044-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3044-8-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/3044-17-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/3044-18-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads