tofsee | df205ed8f7724b3a6a00a9fecca1aeef1077885af5a9be0a85a910920919701e

Analysis

max time kernel
143s
max time network
118s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
27/01/2025, 18:44

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General

Target

2025-01-27_6aedcabbe6c76777301c851da07c6c3c_mafia.exe
Size

13.3MB
MD5

6aedcabbe6c76777301c851da07c6c3c
SHA1

844aaac0d4383b8df6bf5ebe266ed8b704f76bb2
SHA256

df205ed8f7724b3a6a00a9fecca1aeef1077885af5a9be0a85a910920919701e
SHA512

0f940b01a7d5695ad414b818cf082de7d37e36d5b715024b1fe8650f45613facfb03ca006efa0962e35fd9f47d524f2af55fc1cb350676db903bff6fe6c221ce
SSDEEP

3072:RLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:UOMdRQr7OB0ypmMXnl8XEPM3noSWOC

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\ruyaarsk = "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
2616	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\ruyaarsk\ImagePath = "C:\\Windows\\SysWOW64\\ruyaarsk\\tnnepypr.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2060	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2568	tnnepypr.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2568 set thread context of 2060	2568	tnnepypr.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2668	sc.exe
2724	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	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	tnnepypr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-27_6aedcabbe6c76777301c851da07c6c3c_mafia.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	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2692 wrote to memory of 2744	2692	2025-01-27_6aedcabbe6c76777301c851da07c6c3c_mafia.exe	30
PID 2692 wrote to memory of 2744	2692	2025-01-27_6aedcabbe6c76777301c851da07c6c3c_mafia.exe	30
PID 2692 wrote to memory of 2744	2692	2025-01-27_6aedcabbe6c76777301c851da07c6c3c_mafia.exe	30
PID 2692 wrote to memory of 2744	2692	2025-01-27_6aedcabbe6c76777301c851da07c6c3c_mafia.exe	30
PID 2692 wrote to memory of 2808	2692	2025-01-27_6aedcabbe6c76777301c851da07c6c3c_mafia.exe	32
PID 2692 wrote to memory of 2808	2692	2025-01-27_6aedcabbe6c76777301c851da07c6c3c_mafia.exe	32
PID 2692 wrote to memory of 2808	2692	2025-01-27_6aedcabbe6c76777301c851da07c6c3c_mafia.exe	32
PID 2692 wrote to memory of 2808	2692	2025-01-27_6aedcabbe6c76777301c851da07c6c3c_mafia.exe	32
PID 2692 wrote to memory of 2668	2692	2025-01-27_6aedcabbe6c76777301c851da07c6c3c_mafia.exe	34
PID 2692 wrote to memory of 2668	2692	2025-01-27_6aedcabbe6c76777301c851da07c6c3c_mafia.exe	34
PID 2692 wrote to memory of 2668	2692	2025-01-27_6aedcabbe6c76777301c851da07c6c3c_mafia.exe	34
PID 2692 wrote to memory of 2668	2692	2025-01-27_6aedcabbe6c76777301c851da07c6c3c_mafia.exe	34
PID 2692 wrote to memory of 2724	2692	2025-01-27_6aedcabbe6c76777301c851da07c6c3c_mafia.exe	36
PID 2692 wrote to memory of 2724	2692	2025-01-27_6aedcabbe6c76777301c851da07c6c3c_mafia.exe	36
PID 2692 wrote to memory of 2724	2692	2025-01-27_6aedcabbe6c76777301c851da07c6c3c_mafia.exe	36
PID 2692 wrote to memory of 2724	2692	2025-01-27_6aedcabbe6c76777301c851da07c6c3c_mafia.exe	36
PID 2692 wrote to memory of 2608	2692	2025-01-27_6aedcabbe6c76777301c851da07c6c3c_mafia.exe	38
PID 2692 wrote to memory of 2608	2692	2025-01-27_6aedcabbe6c76777301c851da07c6c3c_mafia.exe	38
PID 2692 wrote to memory of 2608	2692	2025-01-27_6aedcabbe6c76777301c851da07c6c3c_mafia.exe	38
PID 2692 wrote to memory of 2608	2692	2025-01-27_6aedcabbe6c76777301c851da07c6c3c_mafia.exe	38
PID 2692 wrote to memory of 2616	2692	2025-01-27_6aedcabbe6c76777301c851da07c6c3c_mafia.exe	41
PID 2692 wrote to memory of 2616	2692	2025-01-27_6aedcabbe6c76777301c851da07c6c3c_mafia.exe	41
PID 2692 wrote to memory of 2616	2692	2025-01-27_6aedcabbe6c76777301c851da07c6c3c_mafia.exe	41
PID 2692 wrote to memory of 2616	2692	2025-01-27_6aedcabbe6c76777301c851da07c6c3c_mafia.exe	41
PID 2568 wrote to memory of 2060	2568	tnnepypr.exe	43
PID 2568 wrote to memory of 2060	2568	tnnepypr.exe	43
PID 2568 wrote to memory of 2060	2568	tnnepypr.exe	43
PID 2568 wrote to memory of 2060	2568	tnnepypr.exe	43
PID 2568 wrote to memory of 2060	2568	tnnepypr.exe	43
PID 2568 wrote to memory of 2060	2568	tnnepypr.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-01-27_6aedcabbe6c76777301c851da07c6c3c_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-27_6aedcabbe6c76777301c851da07c6c3c_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2692
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ruyaarsk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2744
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tnnepypr.exe" C:\Windows\SysWOW64\ruyaarsk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2808
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ruyaarsk binPath= "C:\Windows\SysWOW64\ruyaarsk\tnnepypr.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-27_6aedcabbe6c76777301c851da07c6c3c_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2668
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ruyaarsk "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2724
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ruyaarsk
  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:2616

C:\Windows\SysWOW64\ruyaarsk\tnnepypr.exe
C:\Windows\SysWOW64\ruyaarsk\tnnepypr.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-27_6aedcabbe6c76777301c851da07c6c3c_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2568
- 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:2060

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\tnnepypr.exe

Filesize
14.9MB

MD5
5e78fd16efa82dea2487ab712fc06f7f

SHA1
639916304767cc463145752267dabd2bfb9ff5e5

SHA256
5b43ffc87c334dcdd9dbddad5ff43e3cab6cd30efbafd2867b4c87b0adabb0e8

SHA512
28513c3bfef18a6ff9658f7b09cb2d471db7cf401ff48f46c9f79ba30bbff075e4019d270bb679c9123bebaedd491d6e48dec203d1ddc824f295b183f19c0d2b

Download Submit
memory/2060-11-0x00000000000F0000-0x0000000000105000-memory.dmp

Filesize
84KB

Download
memory/2060-14-0x00000000000F0000-0x0000000000105000-memory.dmp

Filesize
84KB

Download
memory/2060-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2060-17-0x00000000000F0000-0x0000000000105000-memory.dmp

Filesize
84KB

Download
memory/2060-16-0x00000000000F0000-0x0000000000105000-memory.dmp

Filesize
84KB

Download
memory/2060-18-0x00000000000F0000-0x0000000000105000-memory.dmp

Filesize
84KB

Download
memory/2568-15-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2692-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2692-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2692-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2692-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2692-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2692-1-0x00000000005B0000-0x00000000006B0000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads