tofsee | 0398bddc85d479504d1353e2d665cb53b9470233be52ada7e5ba6c20a5f40bc1

Analysis

max time kernel
149s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
18-01-2025 19:54

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2025-01-18_faad12ce0d384a4195103d02f56bc1d4_mafia.exe
Size

13.3MB
MD5

faad12ce0d384a4195103d02f56bc1d4
SHA1

f42d78031526b2a2cbfa02a9090bb6ffde99f7d3
SHA256

0398bddc85d479504d1353e2d665cb53b9470233be52ada7e5ba6c20a5f40bc1
SHA512

07d71c5aa9a71f47258127e983724333eece34906fc590337ea2fe5dd761d2d605e4c533d5cea72eb26e601ed4c0066c399d078af8d5123bef3e45455353ff7b
SSDEEP

24576:o6WdLQkyQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQ:1WdLQk

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\bgauxhjp = "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
2028	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\bgauxhjp\ImagePath = "C:\\Windows\\SysWOW64\\bgauxhjp\\xfuyljss.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2504	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2664	xfuyljss.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2664 set thread context of 2504	2664	xfuyljss.exe	39

Launches sc.exe 3 IoCs

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

pid	Process
2704	sc.exe
2832	sc.exe
2524	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	xfuyljss.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-18_faad12ce0d384a4195103d02f56bc1d4_mafia.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 2840 wrote to memory of 1660	2840	2025-01-18_faad12ce0d384a4195103d02f56bc1d4_mafia.exe	28
PID 2840 wrote to memory of 1660	2840	2025-01-18_faad12ce0d384a4195103d02f56bc1d4_mafia.exe	28
PID 2840 wrote to memory of 1660	2840	2025-01-18_faad12ce0d384a4195103d02f56bc1d4_mafia.exe	28
PID 2840 wrote to memory of 1660	2840	2025-01-18_faad12ce0d384a4195103d02f56bc1d4_mafia.exe	28
PID 2840 wrote to memory of 2716	2840	2025-01-18_faad12ce0d384a4195103d02f56bc1d4_mafia.exe	30
PID 2840 wrote to memory of 2716	2840	2025-01-18_faad12ce0d384a4195103d02f56bc1d4_mafia.exe	30
PID 2840 wrote to memory of 2716	2840	2025-01-18_faad12ce0d384a4195103d02f56bc1d4_mafia.exe	30
PID 2840 wrote to memory of 2716	2840	2025-01-18_faad12ce0d384a4195103d02f56bc1d4_mafia.exe	30
PID 2840 wrote to memory of 2704	2840	2025-01-18_faad12ce0d384a4195103d02f56bc1d4_mafia.exe	32
PID 2840 wrote to memory of 2704	2840	2025-01-18_faad12ce0d384a4195103d02f56bc1d4_mafia.exe	32
PID 2840 wrote to memory of 2704	2840	2025-01-18_faad12ce0d384a4195103d02f56bc1d4_mafia.exe	32
PID 2840 wrote to memory of 2704	2840	2025-01-18_faad12ce0d384a4195103d02f56bc1d4_mafia.exe	32
PID 2840 wrote to memory of 2832	2840	2025-01-18_faad12ce0d384a4195103d02f56bc1d4_mafia.exe	34
PID 2840 wrote to memory of 2832	2840	2025-01-18_faad12ce0d384a4195103d02f56bc1d4_mafia.exe	34
PID 2840 wrote to memory of 2832	2840	2025-01-18_faad12ce0d384a4195103d02f56bc1d4_mafia.exe	34
PID 2840 wrote to memory of 2832	2840	2025-01-18_faad12ce0d384a4195103d02f56bc1d4_mafia.exe	34
PID 2840 wrote to memory of 2524	2840	2025-01-18_faad12ce0d384a4195103d02f56bc1d4_mafia.exe	36
PID 2840 wrote to memory of 2524	2840	2025-01-18_faad12ce0d384a4195103d02f56bc1d4_mafia.exe	36
PID 2840 wrote to memory of 2524	2840	2025-01-18_faad12ce0d384a4195103d02f56bc1d4_mafia.exe	36
PID 2840 wrote to memory of 2524	2840	2025-01-18_faad12ce0d384a4195103d02f56bc1d4_mafia.exe	36
PID 2664 wrote to memory of 2504	2664	xfuyljss.exe	39
PID 2664 wrote to memory of 2504	2664	xfuyljss.exe	39
PID 2664 wrote to memory of 2504	2664	xfuyljss.exe	39
PID 2664 wrote to memory of 2504	2664	xfuyljss.exe	39
PID 2664 wrote to memory of 2504	2664	xfuyljss.exe	39
PID 2664 wrote to memory of 2504	2664	xfuyljss.exe	39
PID 2840 wrote to memory of 2028	2840	2025-01-18_faad12ce0d384a4195103d02f56bc1d4_mafia.exe	40
PID 2840 wrote to memory of 2028	2840	2025-01-18_faad12ce0d384a4195103d02f56bc1d4_mafia.exe	40
PID 2840 wrote to memory of 2028	2840	2025-01-18_faad12ce0d384a4195103d02f56bc1d4_mafia.exe	40
PID 2840 wrote to memory of 2028	2840	2025-01-18_faad12ce0d384a4195103d02f56bc1d4_mafia.exe	40

C:\Users\Admin\AppData\Local\Temp\2025-01-18_faad12ce0d384a4195103d02f56bc1d4_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-18_faad12ce0d384a4195103d02f56bc1d4_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2840
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\bgauxhjp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1660
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\xfuyljss.exe" C:\Windows\SysWOW64\bgauxhjp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2716
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create bgauxhjp binPath= "C:\Windows\SysWOW64\bgauxhjp\xfuyljss.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-18_faad12ce0d384a4195103d02f56bc1d4_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2704
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description bgauxhjp "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2832
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start bgauxhjp
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2524
- 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:2028

C:\Windows\SysWOW64\bgauxhjp\xfuyljss.exe
C:\Windows\SysWOW64\bgauxhjp\xfuyljss.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-18_faad12ce0d384a4195103d02f56bc1d4_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2664
- 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:2504

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\xfuyljss.exe

Filesize
14.4MB

MD5
64e18af1682b1a4d85528285cf79b76c

SHA1
6d72fb01244e4e2389032e766fe117763aad31e1

SHA256
6129b6fdc243737b8034839e2d31587aa47ddcc910690d21578d01e922c04ef0

SHA512
4295410430c5c9534a9c8dc42e40a9cac6ab8285c0819ab31caa7301ab1189296da4fb6dc04b7da48c3b6d7bdb4018716cfe1f649ef5de208c23092fe6b139ee

Download Submit
memory/2504-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2504-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2504-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2504-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2504-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2664-12-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2840-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2840-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2840-1-0x0000000000590000-0x0000000000690000-memory.dmp

Filesize
1024KB

Download
memory/2840-14-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2840-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2840-15-0x0000000000020000-0x0000000000033000-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