tofsee | 7810708f33c355028fb29b32b57474d12daf826b803b471756cb6800f32b7436

Analysis

max time kernel
144s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
03-11-2024 19:49

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General

Target

2024-11-03_3514d0875438dd5682cfe14dd6cd95ec_mafia.exe
Size

10.4MB
MD5

3514d0875438dd5682cfe14dd6cd95ec
SHA1

b69b0f81ffb4d8684e770e80746249042cf7756f
SHA256

7810708f33c355028fb29b32b57474d12daf826b803b471756cb6800f32b7436
SHA512

0387238e6e8c713beb521bd5d58d724d0abfa59e6da4f63483759c0f1799fb362e5b002429d0fd7b201841b6c725c004c339e4086268031997d3c2388e92a762
SSDEEP

49152:1Vdrl/8HAzGCbGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGn:1Vdrl/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

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\czjtrgot = "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
3016	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\czjtrgot\ImagePath = "C:\\Windows\\SysWOW64\\czjtrgot\\sbtsbnri.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2652	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2812	sbtsbnri.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2812 set thread context of 2652	2812	sbtsbnri.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2840	sc.exe
2704	sc.exe
1936	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	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sbtsbnri.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-03_3514d0875438dd5682cfe14dd6cd95ec_mafia.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	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2360 wrote to memory of 2160	2360	2024-11-03_3514d0875438dd5682cfe14dd6cd95ec_mafia.exe	30
PID 2360 wrote to memory of 2160	2360	2024-11-03_3514d0875438dd5682cfe14dd6cd95ec_mafia.exe	30
PID 2360 wrote to memory of 2160	2360	2024-11-03_3514d0875438dd5682cfe14dd6cd95ec_mafia.exe	30
PID 2360 wrote to memory of 2160	2360	2024-11-03_3514d0875438dd5682cfe14dd6cd95ec_mafia.exe	30
PID 2360 wrote to memory of 1744	2360	2024-11-03_3514d0875438dd5682cfe14dd6cd95ec_mafia.exe	32
PID 2360 wrote to memory of 1744	2360	2024-11-03_3514d0875438dd5682cfe14dd6cd95ec_mafia.exe	32
PID 2360 wrote to memory of 1744	2360	2024-11-03_3514d0875438dd5682cfe14dd6cd95ec_mafia.exe	32
PID 2360 wrote to memory of 1744	2360	2024-11-03_3514d0875438dd5682cfe14dd6cd95ec_mafia.exe	32
PID 2360 wrote to memory of 2704	2360	2024-11-03_3514d0875438dd5682cfe14dd6cd95ec_mafia.exe	34
PID 2360 wrote to memory of 2704	2360	2024-11-03_3514d0875438dd5682cfe14dd6cd95ec_mafia.exe	34
PID 2360 wrote to memory of 2704	2360	2024-11-03_3514d0875438dd5682cfe14dd6cd95ec_mafia.exe	34
PID 2360 wrote to memory of 2704	2360	2024-11-03_3514d0875438dd5682cfe14dd6cd95ec_mafia.exe	34
PID 2360 wrote to memory of 1936	2360	2024-11-03_3514d0875438dd5682cfe14dd6cd95ec_mafia.exe	36
PID 2360 wrote to memory of 1936	2360	2024-11-03_3514d0875438dd5682cfe14dd6cd95ec_mafia.exe	36
PID 2360 wrote to memory of 1936	2360	2024-11-03_3514d0875438dd5682cfe14dd6cd95ec_mafia.exe	36
PID 2360 wrote to memory of 1936	2360	2024-11-03_3514d0875438dd5682cfe14dd6cd95ec_mafia.exe	36
PID 2360 wrote to memory of 2840	2360	2024-11-03_3514d0875438dd5682cfe14dd6cd95ec_mafia.exe	38
PID 2360 wrote to memory of 2840	2360	2024-11-03_3514d0875438dd5682cfe14dd6cd95ec_mafia.exe	38
PID 2360 wrote to memory of 2840	2360	2024-11-03_3514d0875438dd5682cfe14dd6cd95ec_mafia.exe	38
PID 2360 wrote to memory of 2840	2360	2024-11-03_3514d0875438dd5682cfe14dd6cd95ec_mafia.exe	38
PID 2360 wrote to memory of 3016	2360	2024-11-03_3514d0875438dd5682cfe14dd6cd95ec_mafia.exe	41
PID 2360 wrote to memory of 3016	2360	2024-11-03_3514d0875438dd5682cfe14dd6cd95ec_mafia.exe	41
PID 2360 wrote to memory of 3016	2360	2024-11-03_3514d0875438dd5682cfe14dd6cd95ec_mafia.exe	41
PID 2360 wrote to memory of 3016	2360	2024-11-03_3514d0875438dd5682cfe14dd6cd95ec_mafia.exe	41
PID 2812 wrote to memory of 2652	2812	sbtsbnri.exe	43
PID 2812 wrote to memory of 2652	2812	sbtsbnri.exe	43
PID 2812 wrote to memory of 2652	2812	sbtsbnri.exe	43
PID 2812 wrote to memory of 2652	2812	sbtsbnri.exe	43
PID 2812 wrote to memory of 2652	2812	sbtsbnri.exe	43
PID 2812 wrote to memory of 2652	2812	sbtsbnri.exe	43

C:\Users\Admin\AppData\Local\Temp\2024-11-03_3514d0875438dd5682cfe14dd6cd95ec_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-03_3514d0875438dd5682cfe14dd6cd95ec_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2360
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\czjtrgot\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2160
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\sbtsbnri.exe" C:\Windows\SysWOW64\czjtrgot\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1744
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create czjtrgot binPath= "C:\Windows\SysWOW64\czjtrgot\sbtsbnri.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-11-03_3514d0875438dd5682cfe14dd6cd95ec_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 czjtrgot "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1936
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start czjtrgot
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2840
- 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:3016

C:\Windows\SysWOW64\czjtrgot\sbtsbnri.exe
C:\Windows\SysWOW64\czjtrgot\sbtsbnri.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-11-03_3514d0875438dd5682cfe14dd6cd95ec_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2812
- 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:2652

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\sbtsbnri.exe

Filesize
14.5MB

MD5
764ed636f084c1c2dd7a5aafd2726cef

SHA1
f8718259b21a71f2c2a946d67cbc275a4b57e233

SHA256
53d842f18ae9aa37ea4e99667f0f1d088141f559e6c9fd2b1e6b793a5990da3a

SHA512
763479149514a9ec4f3263b44590ecd5e46cd059ba60a4a647a49bebaba9a6260939e9bac481ff81609a5367566eb37904b1b16d2553f2d2ebd30b10db69c868

Download Submit
memory/2360-7-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/2360-1-0x0000000000270000-0x0000000000370000-memory.dmp

Filesize
1024KB

Download
memory/2360-2-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/2360-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2360-8-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/2360-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2652-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2652-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2652-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2652-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2652-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2652-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2812-15-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads