tofsee | 8090e1afcab6554937edd0bc8c587ed5449e5954f3287e089b948eef719e3f49

Analysis

max time kernel
144s
max time network
122s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
31-01-2025 05:58

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General

Target

2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe
Size

11.9MB
MD5

d2aa8a89bed9a2fce489567b59d15112
SHA1

51040b5011828b7a3f995af3e7bff3aa954be3fa
SHA256

8090e1afcab6554937edd0bc8c587ed5449e5954f3287e089b948eef719e3f49
SHA512

f9a4e9f60c3afbca32e4dc4ea7f34b02aea23d74e8eb2bb9e47947eb45c1f91e5c3caf3b83eaadc82d7126637c5b580149490e65cc67839a6d2d79ff677e5c08
SSDEEP

49152:OqE0YKr3fYPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPS:OqtYc3z

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\vkxsddwn = "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
2620	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\vkxsddwn\ImagePath = "C:\\Windows\\SysWOW64\\vkxsddwn\\tsgiwtum.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
3008	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2576	tsgiwtum.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2576 set thread context of 3008	2576	tsgiwtum.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2760	sc.exe
2624	sc.exe
2852	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	2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tsgiwtum.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	sc.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 2684 wrote to memory of 2836	2684	2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe	30
PID 2684 wrote to memory of 2836	2684	2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe	30
PID 2684 wrote to memory of 2836	2684	2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe	30
PID 2684 wrote to memory of 2836	2684	2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe	30
PID 2684 wrote to memory of 2708	2684	2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe	32
PID 2684 wrote to memory of 2708	2684	2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe	32
PID 2684 wrote to memory of 2708	2684	2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe	32
PID 2684 wrote to memory of 2708	2684	2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe	32
PID 2684 wrote to memory of 2852	2684	2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe	34
PID 2684 wrote to memory of 2852	2684	2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe	34
PID 2684 wrote to memory of 2852	2684	2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe	34
PID 2684 wrote to memory of 2852	2684	2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe	34
PID 2684 wrote to memory of 2760	2684	2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe	36
PID 2684 wrote to memory of 2760	2684	2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe	36
PID 2684 wrote to memory of 2760	2684	2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe	36
PID 2684 wrote to memory of 2760	2684	2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe	36
PID 2684 wrote to memory of 2624	2684	2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe	38
PID 2684 wrote to memory of 2624	2684	2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe	38
PID 2684 wrote to memory of 2624	2684	2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe	38
PID 2684 wrote to memory of 2624	2684	2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe	38
PID 2684 wrote to memory of 2620	2684	2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe	41
PID 2684 wrote to memory of 2620	2684	2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe	41
PID 2684 wrote to memory of 2620	2684	2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe	41
PID 2684 wrote to memory of 2620	2684	2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe	41
PID 2576 wrote to memory of 3008	2576	tsgiwtum.exe	43
PID 2576 wrote to memory of 3008	2576	tsgiwtum.exe	43
PID 2576 wrote to memory of 3008	2576	tsgiwtum.exe	43
PID 2576 wrote to memory of 3008	2576	tsgiwtum.exe	43
PID 2576 wrote to memory of 3008	2576	tsgiwtum.exe	43
PID 2576 wrote to memory of 3008	2576	tsgiwtum.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2684
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\vkxsddwn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2836
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tsgiwtum.exe" C:\Windows\SysWOW64\vkxsddwn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2708
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create vkxsddwn binPath= "C:\Windows\SysWOW64\vkxsddwn\tsgiwtum.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2852
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description vkxsddwn "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2760
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start vkxsddwn
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2624
- 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:2620

C:\Windows\SysWOW64\vkxsddwn\tsgiwtum.exe
C:\Windows\SysWOW64\vkxsddwn\tsgiwtum.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2576
- 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:3008

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\tsgiwtum.exe

Filesize
14.6MB

MD5
895c9bfaa71f46aa1e112f53c70b3d06

SHA1
b8496a1223126f929ba16a573105dc1e8754b8c4

SHA256
e6a2bf1cb2b76064142c120f47349f84fbdaff5458aa596da1ca6b74cb694c80

SHA512
460b21a16e97f95973478c796390f6b3e078e891237a3ebdbc986c26ce8f5b05a9989978307a64340affd7a1f9b7b953534c564898aa69123be8a20f5e2de7e8

Download Submit
memory/2576-18-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/2684-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2684-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2684-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2684-1-0x0000000002F90000-0x0000000003090000-memory.dmp

Filesize
1024KB

Download
memory/2684-8-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/2684-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/3008-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3008-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3008-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3008-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3008-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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