tofsee | 100ee4981f26fb5d937441fbc068f06a17ebb68fe2deab706772d847079ff834

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
02-02-2025 19:48

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General

Target

2025-02-02_a2984597331a8be73f5238c6e4072277_mafia.exe
Size

14.4MB
MD5

a2984597331a8be73f5238c6e4072277
SHA1

8b2c2040bbf391c2eace6251dc7f41c3fcc147de
SHA256

100ee4981f26fb5d937441fbc068f06a17ebb68fe2deab706772d847079ff834
SHA512

4e838fafd0ff617ddb7c9b7d8135133576b04b31734da4a24864cefc65b35ceac546fc766615eed87fe5f05630feb9b816272506d16bac71eccccf8da726e16b
SSDEEP

24576:wEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZl:tfot

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\xkqcvhxq = "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
2268	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\xkqcvhxq\ImagePath = "C:\\Windows\\SysWOW64\\xkqcvhxq\\izhfpkrf.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2692	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2584	izhfpkrf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2584 set thread context of 2692	2584	izhfpkrf.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2604	sc.exe
2708	sc.exe
2068	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 queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\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	2025-02-02_a2984597331a8be73f5238c6e4072277_mafia.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	izhfpkrf.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2792 wrote to memory of 2676	2792	2025-02-02_a2984597331a8be73f5238c6e4072277_mafia.exe	31
PID 2792 wrote to memory of 2676	2792	2025-02-02_a2984597331a8be73f5238c6e4072277_mafia.exe	31
PID 2792 wrote to memory of 2676	2792	2025-02-02_a2984597331a8be73f5238c6e4072277_mafia.exe	31
PID 2792 wrote to memory of 2676	2792	2025-02-02_a2984597331a8be73f5238c6e4072277_mafia.exe	31
PID 2792 wrote to memory of 2764	2792	2025-02-02_a2984597331a8be73f5238c6e4072277_mafia.exe	33
PID 2792 wrote to memory of 2764	2792	2025-02-02_a2984597331a8be73f5238c6e4072277_mafia.exe	33
PID 2792 wrote to memory of 2764	2792	2025-02-02_a2984597331a8be73f5238c6e4072277_mafia.exe	33
PID 2792 wrote to memory of 2764	2792	2025-02-02_a2984597331a8be73f5238c6e4072277_mafia.exe	33
PID 2792 wrote to memory of 2604	2792	2025-02-02_a2984597331a8be73f5238c6e4072277_mafia.exe	35
PID 2792 wrote to memory of 2604	2792	2025-02-02_a2984597331a8be73f5238c6e4072277_mafia.exe	35
PID 2792 wrote to memory of 2604	2792	2025-02-02_a2984597331a8be73f5238c6e4072277_mafia.exe	35
PID 2792 wrote to memory of 2604	2792	2025-02-02_a2984597331a8be73f5238c6e4072277_mafia.exe	35
PID 2792 wrote to memory of 2708	2792	2025-02-02_a2984597331a8be73f5238c6e4072277_mafia.exe	37
PID 2792 wrote to memory of 2708	2792	2025-02-02_a2984597331a8be73f5238c6e4072277_mafia.exe	37
PID 2792 wrote to memory of 2708	2792	2025-02-02_a2984597331a8be73f5238c6e4072277_mafia.exe	37
PID 2792 wrote to memory of 2708	2792	2025-02-02_a2984597331a8be73f5238c6e4072277_mafia.exe	37
PID 2792 wrote to memory of 2068	2792	2025-02-02_a2984597331a8be73f5238c6e4072277_mafia.exe	39
PID 2792 wrote to memory of 2068	2792	2025-02-02_a2984597331a8be73f5238c6e4072277_mafia.exe	39
PID 2792 wrote to memory of 2068	2792	2025-02-02_a2984597331a8be73f5238c6e4072277_mafia.exe	39
PID 2792 wrote to memory of 2068	2792	2025-02-02_a2984597331a8be73f5238c6e4072277_mafia.exe	39
PID 2584 wrote to memory of 2692	2584	izhfpkrf.exe	42
PID 2584 wrote to memory of 2692	2584	izhfpkrf.exe	42
PID 2584 wrote to memory of 2692	2584	izhfpkrf.exe	42
PID 2584 wrote to memory of 2692	2584	izhfpkrf.exe	42
PID 2584 wrote to memory of 2692	2584	izhfpkrf.exe	42
PID 2584 wrote to memory of 2692	2584	izhfpkrf.exe	42
PID 2792 wrote to memory of 2268	2792	2025-02-02_a2984597331a8be73f5238c6e4072277_mafia.exe	43
PID 2792 wrote to memory of 2268	2792	2025-02-02_a2984597331a8be73f5238c6e4072277_mafia.exe	43
PID 2792 wrote to memory of 2268	2792	2025-02-02_a2984597331a8be73f5238c6e4072277_mafia.exe	43
PID 2792 wrote to memory of 2268	2792	2025-02-02_a2984597331a8be73f5238c6e4072277_mafia.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-02-02_a2984597331a8be73f5238c6e4072277_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-02_a2984597331a8be73f5238c6e4072277_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2792
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xkqcvhxq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2676
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\izhfpkrf.exe" C:\Windows\SysWOW64\xkqcvhxq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2764
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create xkqcvhxq binPath= "C:\Windows\SysWOW64\xkqcvhxq\izhfpkrf.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-02_a2984597331a8be73f5238c6e4072277_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2604
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description xkqcvhxq "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2708
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start xkqcvhxq
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2068
- 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:2268

C:\Windows\SysWOW64\xkqcvhxq\izhfpkrf.exe
C:\Windows\SysWOW64\xkqcvhxq\izhfpkrf.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-02_a2984597331a8be73f5238c6e4072277_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2584
- 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:2692

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\izhfpkrf.exe

Filesize
11.0MB

MD5
c55d08222c2b38abdc4ab34829c7522a

SHA1
8fe21856022c81733f2e20b2e1f2d1a8f86e8f55

SHA256
e56539559c3f68dc582ce35d034c4078210895165225102c5ad4da35bb704b30

SHA512
6f3811147dcdb8ff3dd48f3f49e3146dff8ef0adf1d03cbd5e62fba9cf7e45ccadc3e4822178873ecb1c23d6b71bc478c6b13d41157bc1c8e4d70acebf317ab1

Download Submit
memory/2584-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2692-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2692-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2692-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2692-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2692-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2792-1-0x00000000005E0000-0x00000000006E0000-memory.dmp

Filesize
1024KB

Download
memory/2792-3-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2792-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2792-15-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2792-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads