tofsee | df205ed8f7724b3a6a00a9fecca1aeef1077885af5a9be0a85a910920919701e

Analysis

max time kernel
144s
max time network
119s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
27/01/2025, 18:39

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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\akxujbeo = "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
2880	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\akxujbeo\ImagePath = "C:\\Windows\\SysWOW64\\akxujbeo\\rielcbfj.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2708	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2820	rielcbfj.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2820 set thread context of 2708	2820	rielcbfj.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2924	sc.exe
2472	sc.exe
1528	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rielcbfj.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.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	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2140 wrote to memory of 2204	2140	2025-01-27_6aedcabbe6c76777301c851da07c6c3c_mafia.exe	29
PID 2140 wrote to memory of 2204	2140	2025-01-27_6aedcabbe6c76777301c851da07c6c3c_mafia.exe	29
PID 2140 wrote to memory of 2204	2140	2025-01-27_6aedcabbe6c76777301c851da07c6c3c_mafia.exe	29
PID 2140 wrote to memory of 2204	2140	2025-01-27_6aedcabbe6c76777301c851da07c6c3c_mafia.exe	29
PID 2140 wrote to memory of 2856	2140	2025-01-27_6aedcabbe6c76777301c851da07c6c3c_mafia.exe	31
PID 2140 wrote to memory of 2856	2140	2025-01-27_6aedcabbe6c76777301c851da07c6c3c_mafia.exe	31
PID 2140 wrote to memory of 2856	2140	2025-01-27_6aedcabbe6c76777301c851da07c6c3c_mafia.exe	31
PID 2140 wrote to memory of 2856	2140	2025-01-27_6aedcabbe6c76777301c851da07c6c3c_mafia.exe	31
PID 2140 wrote to memory of 2924	2140	2025-01-27_6aedcabbe6c76777301c851da07c6c3c_mafia.exe	33
PID 2140 wrote to memory of 2924	2140	2025-01-27_6aedcabbe6c76777301c851da07c6c3c_mafia.exe	33
PID 2140 wrote to memory of 2924	2140	2025-01-27_6aedcabbe6c76777301c851da07c6c3c_mafia.exe	33
PID 2140 wrote to memory of 2924	2140	2025-01-27_6aedcabbe6c76777301c851da07c6c3c_mafia.exe	33
PID 2140 wrote to memory of 2472	2140	2025-01-27_6aedcabbe6c76777301c851da07c6c3c_mafia.exe	35
PID 2140 wrote to memory of 2472	2140	2025-01-27_6aedcabbe6c76777301c851da07c6c3c_mafia.exe	35
PID 2140 wrote to memory of 2472	2140	2025-01-27_6aedcabbe6c76777301c851da07c6c3c_mafia.exe	35
PID 2140 wrote to memory of 2472	2140	2025-01-27_6aedcabbe6c76777301c851da07c6c3c_mafia.exe	35
PID 2140 wrote to memory of 1528	2140	2025-01-27_6aedcabbe6c76777301c851da07c6c3c_mafia.exe	37
PID 2140 wrote to memory of 1528	2140	2025-01-27_6aedcabbe6c76777301c851da07c6c3c_mafia.exe	37
PID 2140 wrote to memory of 1528	2140	2025-01-27_6aedcabbe6c76777301c851da07c6c3c_mafia.exe	37
PID 2140 wrote to memory of 1528	2140	2025-01-27_6aedcabbe6c76777301c851da07c6c3c_mafia.exe	37
PID 2140 wrote to memory of 2880	2140	2025-01-27_6aedcabbe6c76777301c851da07c6c3c_mafia.exe	40
PID 2140 wrote to memory of 2880	2140	2025-01-27_6aedcabbe6c76777301c851da07c6c3c_mafia.exe	40
PID 2140 wrote to memory of 2880	2140	2025-01-27_6aedcabbe6c76777301c851da07c6c3c_mafia.exe	40
PID 2140 wrote to memory of 2880	2140	2025-01-27_6aedcabbe6c76777301c851da07c6c3c_mafia.exe	40
PID 2820 wrote to memory of 2708	2820	rielcbfj.exe	42
PID 2820 wrote to memory of 2708	2820	rielcbfj.exe	42
PID 2820 wrote to memory of 2708	2820	rielcbfj.exe	42
PID 2820 wrote to memory of 2708	2820	rielcbfj.exe	42
PID 2820 wrote to memory of 2708	2820	rielcbfj.exe	42
PID 2820 wrote to memory of 2708	2820	rielcbfj.exe	42

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:2140
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\akxujbeo\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2204
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\rielcbfj.exe" C:\Windows\SysWOW64\akxujbeo\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2856
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create akxujbeo binPath= "C:\Windows\SysWOW64\akxujbeo\rielcbfj.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:2924
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description akxujbeo "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2472
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start akxujbeo
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1528
- 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:2880

C:\Windows\SysWOW64\akxujbeo\rielcbfj.exe
C:\Windows\SysWOW64\akxujbeo\rielcbfj.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:2820
- 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:2708

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\rielcbfj.exe

Filesize
11.9MB

MD5
05fe1b2524b1908a7ff6cc0c5681fe1f

SHA1
87193f305b563ebbff65614073b8bb41d0984823

SHA256
a9e951d88e8b02ac4e1b6fb492fdba48d88aad0cc839c7ae78c28d8758d7e61c

SHA512
d9aaf0ed0626c238930a0a37a06fab577caf1c011897d2b9c6bd0414034850deca09b23baab2f37bfb6afda921b3e56e7687f0362d4a6466c85df44308c37135

Download Submit
memory/2140-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2140-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2140-1-0x0000000000570000-0x0000000000670000-memory.dmp

Filesize
1024KB

Download
memory/2140-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2140-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2140-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2708-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2708-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2708-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2708-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2708-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2820-17-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads