tofsee | 56014682e7b9dbd55ad1fe084c3539d0e38484365326eb4d1980984240c0c987

Analysis

max time kernel
145s
max time network
118s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
09-01-2025 20:01

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General

Target

2025-01-09_e836dbc909322a908071b5ef1cd29664_mafia.exe
Size

10.6MB
MD5

e836dbc909322a908071b5ef1cd29664
SHA1

f09b1592658eaafd025b0e1e9f9c8a0f7f4c78cf
SHA256

56014682e7b9dbd55ad1fe084c3539d0e38484365326eb4d1980984240c0c987
SHA512

167503ea073ae8c7120e8af0dac25e462373d338fe799c8162d07e406b9571e07ad7e6518c7498fc2227badebebf504bb5168828d9199d106350f46fb6f36c20
SSDEEP

49152:qqE0YKr3fYPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPn:qqtYc3

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\dsqxkbvx = "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
2856	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\dsqxkbvx\ImagePath = "C:\\Windows\\SysWOW64\\dsqxkbvx\\qsntmzj.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2680	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2660	qsntmzj.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2660 set thread context of 2680	2660	qsntmzj.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2836	sc.exe
2496	sc.exe
2672	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	qsntmzj.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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	2025-01-09_e836dbc909322a908071b5ef1cd29664_mafia.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

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2520 wrote to memory of 2508	2520	2025-01-09_e836dbc909322a908071b5ef1cd29664_mafia.exe	30
PID 2520 wrote to memory of 2508	2520	2025-01-09_e836dbc909322a908071b5ef1cd29664_mafia.exe	30
PID 2520 wrote to memory of 2508	2520	2025-01-09_e836dbc909322a908071b5ef1cd29664_mafia.exe	30
PID 2520 wrote to memory of 2508	2520	2025-01-09_e836dbc909322a908071b5ef1cd29664_mafia.exe	30
PID 2520 wrote to memory of 2784	2520	2025-01-09_e836dbc909322a908071b5ef1cd29664_mafia.exe	32
PID 2520 wrote to memory of 2784	2520	2025-01-09_e836dbc909322a908071b5ef1cd29664_mafia.exe	32
PID 2520 wrote to memory of 2784	2520	2025-01-09_e836dbc909322a908071b5ef1cd29664_mafia.exe	32
PID 2520 wrote to memory of 2784	2520	2025-01-09_e836dbc909322a908071b5ef1cd29664_mafia.exe	32
PID 2520 wrote to memory of 2836	2520	2025-01-09_e836dbc909322a908071b5ef1cd29664_mafia.exe	34
PID 2520 wrote to memory of 2836	2520	2025-01-09_e836dbc909322a908071b5ef1cd29664_mafia.exe	34
PID 2520 wrote to memory of 2836	2520	2025-01-09_e836dbc909322a908071b5ef1cd29664_mafia.exe	34
PID 2520 wrote to memory of 2836	2520	2025-01-09_e836dbc909322a908071b5ef1cd29664_mafia.exe	34
PID 2520 wrote to memory of 2496	2520	2025-01-09_e836dbc909322a908071b5ef1cd29664_mafia.exe	36
PID 2520 wrote to memory of 2496	2520	2025-01-09_e836dbc909322a908071b5ef1cd29664_mafia.exe	36
PID 2520 wrote to memory of 2496	2520	2025-01-09_e836dbc909322a908071b5ef1cd29664_mafia.exe	36
PID 2520 wrote to memory of 2496	2520	2025-01-09_e836dbc909322a908071b5ef1cd29664_mafia.exe	36
PID 2520 wrote to memory of 2672	2520	2025-01-09_e836dbc909322a908071b5ef1cd29664_mafia.exe	38
PID 2520 wrote to memory of 2672	2520	2025-01-09_e836dbc909322a908071b5ef1cd29664_mafia.exe	38
PID 2520 wrote to memory of 2672	2520	2025-01-09_e836dbc909322a908071b5ef1cd29664_mafia.exe	38
PID 2520 wrote to memory of 2672	2520	2025-01-09_e836dbc909322a908071b5ef1cd29664_mafia.exe	38
PID 2520 wrote to memory of 2856	2520	2025-01-09_e836dbc909322a908071b5ef1cd29664_mafia.exe	42
PID 2520 wrote to memory of 2856	2520	2025-01-09_e836dbc909322a908071b5ef1cd29664_mafia.exe	42
PID 2520 wrote to memory of 2856	2520	2025-01-09_e836dbc909322a908071b5ef1cd29664_mafia.exe	42
PID 2520 wrote to memory of 2856	2520	2025-01-09_e836dbc909322a908071b5ef1cd29664_mafia.exe	42
PID 2660 wrote to memory of 2680	2660	qsntmzj.exe	41
PID 2660 wrote to memory of 2680	2660	qsntmzj.exe	41
PID 2660 wrote to memory of 2680	2660	qsntmzj.exe	41
PID 2660 wrote to memory of 2680	2660	qsntmzj.exe	41
PID 2660 wrote to memory of 2680	2660	qsntmzj.exe	41
PID 2660 wrote to memory of 2680	2660	qsntmzj.exe	41

C:\Users\Admin\AppData\Local\Temp\2025-01-09_e836dbc909322a908071b5ef1cd29664_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-09_e836dbc909322a908071b5ef1cd29664_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2520
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\dsqxkbvx\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2508
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qsntmzj.exe" C:\Windows\SysWOW64\dsqxkbvx\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2784
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create dsqxkbvx binPath= "C:\Windows\SysWOW64\dsqxkbvx\qsntmzj.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-09_e836dbc909322a908071b5ef1cd29664_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2836
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description dsqxkbvx "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2496
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start dsqxkbvx
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2672
- 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:2856

C:\Windows\SysWOW64\dsqxkbvx\qsntmzj.exe
C:\Windows\SysWOW64\dsqxkbvx\qsntmzj.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-09_e836dbc909322a908071b5ef1cd29664_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2660
- 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:2680

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\qsntmzj.exe

Filesize
13.3MB

MD5
baf5bf7da4f88e9ac5508de1e05684d9

SHA1
9f32f3daca1f2b2ca40023f5f732d40b6aee63e5

SHA256
263ef5081a9056e65d5a7f59a164d5cf1dde6448792df70050ef80fe641ca277

SHA512
56ea35e07b5b3dd0a85dd0164e8ceab7098e9f1fb5d2ab246e43464f7393b7d184fd4cd8ef75314765b7307555a3c019679c7674a69e47d0a16f1095404225f6

Download Submit
memory/2520-15-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2520-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2520-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2520-13-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/2520-1-0x0000000000270000-0x0000000000370000-memory.dmp

Filesize
1024KB

Download
memory/2520-14-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2660-16-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/2680-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2680-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2680-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2680-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2680-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads