tofsee | 507aced06e7338e082a63b69fded2e8d40d92c9e15271d3f3ce9b4b564939c72

Analysis

max time kernel
147s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
06-11-2024 19:02

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General

Target

2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.exe
Size

12.6MB
MD5

f4c675ba77abd4b560b6927107f04d5a
SHA1

a57a67dc9ed2228fb3b02f4289dd632f01f9a82b
SHA256

507aced06e7338e082a63b69fded2e8d40d92c9e15271d3f3ce9b4b564939c72
SHA512

2bb27a269086ed8facedf1daa08e3acfc1b181425c244a25c31dccea7ed85b90caaaf8df241a464b3adefd244aeb49db3f3b14db0adf347cb83b078a32a07e00
SSDEEP

49152:TVdrl/8HAzGCbGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGX:TVdrl/9zG

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

Processes:

svchost.exe

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\vdimrxuk = "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

Processes:

netsh.exe

pid	Process
2788	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\vdimrxuk\ImagePath = "C:\\Windows\\SysWOW64\\vdimrxuk\\utfbgqan.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid	Process
2232	svchost.exe

Executes dropped EXE 1 IoCs

Processes:

utfbgqan.exe

pid	Process
2112	utfbgqan.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

utfbgqan.exe

description	pid	Process	procid_target
PID 2112 set thread context of 2232	2112	utfbgqan.exe	44

Launches sc.exe 3 IoCs

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

Processes:

sc.exesc.exesc.exe

pid	Process
820	sc.exe
2920	sc.exe
2480	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

Processes:

netsh.exe

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

Processes:

cmd.execmd.exesc.exesvchost.exeutfbgqan.exe2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.exesc.exesc.exenetsh.exe

description	ioc	Process
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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	utfbgqan.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.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	netsh.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.exeutfbgqan.exe

description	pid	Process	procid_target
PID 1520 wrote to memory of 2088	1520	2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.exe	30
PID 1520 wrote to memory of 2088	1520	2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.exe	30
PID 1520 wrote to memory of 2088	1520	2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.exe	30
PID 1520 wrote to memory of 2088	1520	2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.exe	30
PID 1520 wrote to memory of 2524	1520	2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.exe	32
PID 1520 wrote to memory of 2524	1520	2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.exe	32
PID 1520 wrote to memory of 2524	1520	2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.exe	32
PID 1520 wrote to memory of 2524	1520	2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.exe	32
PID 1520 wrote to memory of 820	1520	2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.exe	34
PID 1520 wrote to memory of 820	1520	2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.exe	34
PID 1520 wrote to memory of 820	1520	2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.exe	34
PID 1520 wrote to memory of 820	1520	2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.exe	34
PID 1520 wrote to memory of 2920	1520	2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.exe	36
PID 1520 wrote to memory of 2920	1520	2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.exe	36
PID 1520 wrote to memory of 2920	1520	2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.exe	36
PID 1520 wrote to memory of 2920	1520	2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.exe	36
PID 1520 wrote to memory of 2480	1520	2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.exe	38
PID 1520 wrote to memory of 2480	1520	2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.exe	38
PID 1520 wrote to memory of 2480	1520	2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.exe	38
PID 1520 wrote to memory of 2480	1520	2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.exe	38
PID 1520 wrote to memory of 2788	1520	2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.exe	41
PID 1520 wrote to memory of 2788	1520	2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.exe	41
PID 1520 wrote to memory of 2788	1520	2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.exe	41
PID 1520 wrote to memory of 2788	1520	2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.exe	41
PID 2112 wrote to memory of 2232	2112	utfbgqan.exe	44
PID 2112 wrote to memory of 2232	2112	utfbgqan.exe	44
PID 2112 wrote to memory of 2232	2112	utfbgqan.exe	44
PID 2112 wrote to memory of 2232	2112	utfbgqan.exe	44
PID 2112 wrote to memory of 2232	2112	utfbgqan.exe	44
PID 2112 wrote to memory of 2232	2112	utfbgqan.exe	44

C:\Users\Admin\AppData\Local\Temp\2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1520
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\vdimrxuk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2088
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\utfbgqan.exe" C:\Windows\SysWOW64\vdimrxuk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2524
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create vdimrxuk binPath= "C:\Windows\SysWOW64\vdimrxuk\utfbgqan.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:820
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description vdimrxuk "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2920
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start vdimrxuk
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2480
- 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:2788

C:\Windows\SysWOW64\vdimrxuk\utfbgqan.exe
C:\Windows\SysWOW64\vdimrxuk\utfbgqan.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-11-06_f4c675ba77abd4b560b6927107f04d5a_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2112
- 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:2232

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\utfbgqan.exe

Filesize
12.4MB

MD5
06360b3d5327d050c1da4f3cb8232a4f

SHA1
87096c0412c3c1b3b37754e9b21dd25b52f18822

SHA256
40912528e26116eb4ab38db59daf1962d8351f670778f926ed8f71bea395b126

SHA512
50f6128a207db82a0af4e2f2539dce28beac4a46ae76c72cf2cec47ed61a27ab467c6dfb461651213c0c74298fa9af1a8eabda6bef198e7958b06d9dfc30f219

Download Submit
memory/1520-7-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/1520-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1520-2-0x0000000000250000-0x0000000000263000-memory.dmp

Filesize
76KB

Download
memory/1520-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1520-8-0x0000000000250000-0x0000000000263000-memory.dmp

Filesize
76KB

Download
memory/1520-1-0x0000000000270000-0x0000000000370000-memory.dmp

Filesize
1024KB

Download
memory/2112-16-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/2232-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2232-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2232-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2232-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2232-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download