tofsee | d964d79c457a25804009d5d23d8a4552b08baefb122eeb64a2514e169f7eadfa

Analysis

max time kernel
144s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
24-09-2024 17:17

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

202409242fed4f867f1b3b5a3f1fe632c09160f0mafia.exe
Size

14.8MB
MD5

2fed4f867f1b3b5a3f1fe632c09160f0
SHA1

b5209a5cfc4f2ebe1a39041675c7d985fc4dbbea
SHA256

d964d79c457a25804009d5d23d8a4552b08baefb122eeb64a2514e169f7eadfa
SHA512

74809b8a70806be6df304181ce9dd3762203cfcc7eb34d13d4a9fae334f860d887184eabab4343ecfbf738c18ea4a409c7c148b398b15b9985a5db8abef01b7c
SSDEEP

6144:7+rWO2zeSPDjMXMH7Ll4aFpWVqIwUAP97GEwHrG2+e1x2:7+r1IeSXMXc7LlxWV4Ug97GZ+ej

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

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\aurceox = "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
1012	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\aurceox\ImagePath = "C:\\Windows\\SysWOW64\\aurceox\\ytaxwtpq.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2068	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2700	ytaxwtpq.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2700 set thread context of 2068	2700	ytaxwtpq.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2916	sc.exe
1948	sc.exe
2608	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	ytaxwtpq.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	202409242fed4f867f1b3b5a3f1fe632c09160f0mafia.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	svchost.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 2824 wrote to memory of 2888	2824	202409242fed4f867f1b3b5a3f1fe632c09160f0mafia.exe	30
PID 2824 wrote to memory of 2888	2824	202409242fed4f867f1b3b5a3f1fe632c09160f0mafia.exe	30
PID 2824 wrote to memory of 2888	2824	202409242fed4f867f1b3b5a3f1fe632c09160f0mafia.exe	30
PID 2824 wrote to memory of 2888	2824	202409242fed4f867f1b3b5a3f1fe632c09160f0mafia.exe	30
PID 2824 wrote to memory of 2800	2824	202409242fed4f867f1b3b5a3f1fe632c09160f0mafia.exe	32
PID 2824 wrote to memory of 2800	2824	202409242fed4f867f1b3b5a3f1fe632c09160f0mafia.exe	32
PID 2824 wrote to memory of 2800	2824	202409242fed4f867f1b3b5a3f1fe632c09160f0mafia.exe	32
PID 2824 wrote to memory of 2800	2824	202409242fed4f867f1b3b5a3f1fe632c09160f0mafia.exe	32
PID 2824 wrote to memory of 2916	2824	202409242fed4f867f1b3b5a3f1fe632c09160f0mafia.exe	34
PID 2824 wrote to memory of 2916	2824	202409242fed4f867f1b3b5a3f1fe632c09160f0mafia.exe	34
PID 2824 wrote to memory of 2916	2824	202409242fed4f867f1b3b5a3f1fe632c09160f0mafia.exe	34
PID 2824 wrote to memory of 2916	2824	202409242fed4f867f1b3b5a3f1fe632c09160f0mafia.exe	34
PID 2824 wrote to memory of 1948	2824	202409242fed4f867f1b3b5a3f1fe632c09160f0mafia.exe	36
PID 2824 wrote to memory of 1948	2824	202409242fed4f867f1b3b5a3f1fe632c09160f0mafia.exe	36
PID 2824 wrote to memory of 1948	2824	202409242fed4f867f1b3b5a3f1fe632c09160f0mafia.exe	36
PID 2824 wrote to memory of 1948	2824	202409242fed4f867f1b3b5a3f1fe632c09160f0mafia.exe	36
PID 2824 wrote to memory of 2608	2824	202409242fed4f867f1b3b5a3f1fe632c09160f0mafia.exe	38
PID 2824 wrote to memory of 2608	2824	202409242fed4f867f1b3b5a3f1fe632c09160f0mafia.exe	38
PID 2824 wrote to memory of 2608	2824	202409242fed4f867f1b3b5a3f1fe632c09160f0mafia.exe	38
PID 2824 wrote to memory of 2608	2824	202409242fed4f867f1b3b5a3f1fe632c09160f0mafia.exe	38
PID 2700 wrote to memory of 2068	2700	ytaxwtpq.exe	41
PID 2700 wrote to memory of 2068	2700	ytaxwtpq.exe	41
PID 2700 wrote to memory of 2068	2700	ytaxwtpq.exe	41
PID 2700 wrote to memory of 2068	2700	ytaxwtpq.exe	41
PID 2700 wrote to memory of 2068	2700	ytaxwtpq.exe	41
PID 2700 wrote to memory of 2068	2700	ytaxwtpq.exe	41
PID 2824 wrote to memory of 1012	2824	202409242fed4f867f1b3b5a3f1fe632c09160f0mafia.exe	42
PID 2824 wrote to memory of 1012	2824	202409242fed4f867f1b3b5a3f1fe632c09160f0mafia.exe	42
PID 2824 wrote to memory of 1012	2824	202409242fed4f867f1b3b5a3f1fe632c09160f0mafia.exe	42
PID 2824 wrote to memory of 1012	2824	202409242fed4f867f1b3b5a3f1fe632c09160f0mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\202409242fed4f867f1b3b5a3f1fe632c09160f0mafia.exe
"C:\Users\Admin\AppData\Local\Temp\202409242fed4f867f1b3b5a3f1fe632c09160f0mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2824
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\aurceox\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2888
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ytaxwtpq.exe" C:\Windows\SysWOW64\aurceox\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2800
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create aurceox binPath= "C:\Windows\SysWOW64\aurceox\ytaxwtpq.exe /d\"C:\Users\Admin\AppData\Local\Temp\202409242fed4f867f1b3b5a3f1fe632c09160f0mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2916
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description aurceox "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1948
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start aurceox
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2608
- 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:1012

C:\Windows\SysWOW64\aurceox\ytaxwtpq.exe
C:\Windows\SysWOW64\aurceox\ytaxwtpq.exe /d"C:\Users\Admin\AppData\Local\Temp\202409242fed4f867f1b3b5a3f1fe632c09160f0mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2700
- 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:2068

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\ytaxwtpq.exe

Filesize
14.2MB

MD5
3458e78eb78ac70681ea50ee10da65f0

SHA1
9fd63d4ff4dee3ecfcc6ac17a483cb0d42a02987

SHA256
9e3b71928a4c7339e4c793cc855e16ea4ef777195be290e7501a863688cd9db1

SHA512
dddcd15fd7bf735f2b5674136626f2c2da1a2384048ad228642e7401df4bb37a67e425abdafc767540b25758e9c1ad09b7a1a5d3144994b6c97d9da7e6d5e4f3

Download Submit
memory/2068-10-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2068-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2068-7-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2068-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2068-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2700-11-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/2824-1-0x0000000000660000-0x0000000000760000-memory.dmp

Filesize
1024KB

Download
memory/2824-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2824-14-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2824-13-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads