tofsee | 2be71100003ab6289fedc5f0fe8bd605020c56ad24e4a3d1aad58634b2c259b9

Analysis

max time kernel
144s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
01/02/2025, 04:45

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General

Target

2025-02-01_04e437967a97228b8a21dc2a0c069a00_mafia.exe
Size

10.4MB
MD5

04e437967a97228b8a21dc2a0c069a00
SHA1

3636d55251c0953be05d9f02897352f7f43f7a9f
SHA256

2be71100003ab6289fedc5f0fe8bd605020c56ad24e4a3d1aad58634b2c259b9
SHA512

4729d9fc7c432805ba60d98ffafe2663f4f92ae84e18291e001fe783148c22ec6692bfd747f6520e8c4837cd23d353780fef6200dad8152d2f4243c43084c59c
SSDEEP

24576:IEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZS:FfotA

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\qfsryehl = "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
2656	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\qfsryehl\ImagePath = "C:\\Windows\\SysWOW64\\qfsryehl\\acxdwjt.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2640	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2196	acxdwjt.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2196 set thread context of 2640	2196	acxdwjt.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2288	sc.exe
2612	sc.exe
2824	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	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	acxdwjt.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-01_04e437967a97228b8a21dc2a0c069a00_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

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2676 wrote to memory of 2788	2676	2025-02-01_04e437967a97228b8a21dc2a0c069a00_mafia.exe	31
PID 2676 wrote to memory of 2788	2676	2025-02-01_04e437967a97228b8a21dc2a0c069a00_mafia.exe	31
PID 2676 wrote to memory of 2788	2676	2025-02-01_04e437967a97228b8a21dc2a0c069a00_mafia.exe	31
PID 2676 wrote to memory of 2788	2676	2025-02-01_04e437967a97228b8a21dc2a0c069a00_mafia.exe	31
PID 2676 wrote to memory of 2740	2676	2025-02-01_04e437967a97228b8a21dc2a0c069a00_mafia.exe	33
PID 2676 wrote to memory of 2740	2676	2025-02-01_04e437967a97228b8a21dc2a0c069a00_mafia.exe	33
PID 2676 wrote to memory of 2740	2676	2025-02-01_04e437967a97228b8a21dc2a0c069a00_mafia.exe	33
PID 2676 wrote to memory of 2740	2676	2025-02-01_04e437967a97228b8a21dc2a0c069a00_mafia.exe	33
PID 2676 wrote to memory of 2824	2676	2025-02-01_04e437967a97228b8a21dc2a0c069a00_mafia.exe	35
PID 2676 wrote to memory of 2824	2676	2025-02-01_04e437967a97228b8a21dc2a0c069a00_mafia.exe	35
PID 2676 wrote to memory of 2824	2676	2025-02-01_04e437967a97228b8a21dc2a0c069a00_mafia.exe	35
PID 2676 wrote to memory of 2824	2676	2025-02-01_04e437967a97228b8a21dc2a0c069a00_mafia.exe	35
PID 2676 wrote to memory of 2288	2676	2025-02-01_04e437967a97228b8a21dc2a0c069a00_mafia.exe	37
PID 2676 wrote to memory of 2288	2676	2025-02-01_04e437967a97228b8a21dc2a0c069a00_mafia.exe	37
PID 2676 wrote to memory of 2288	2676	2025-02-01_04e437967a97228b8a21dc2a0c069a00_mafia.exe	37
PID 2676 wrote to memory of 2288	2676	2025-02-01_04e437967a97228b8a21dc2a0c069a00_mafia.exe	37
PID 2676 wrote to memory of 2612	2676	2025-02-01_04e437967a97228b8a21dc2a0c069a00_mafia.exe	39
PID 2676 wrote to memory of 2612	2676	2025-02-01_04e437967a97228b8a21dc2a0c069a00_mafia.exe	39
PID 2676 wrote to memory of 2612	2676	2025-02-01_04e437967a97228b8a21dc2a0c069a00_mafia.exe	39
PID 2676 wrote to memory of 2612	2676	2025-02-01_04e437967a97228b8a21dc2a0c069a00_mafia.exe	39
PID 2196 wrote to memory of 2640	2196	acxdwjt.exe	42
PID 2196 wrote to memory of 2640	2196	acxdwjt.exe	42
PID 2196 wrote to memory of 2640	2196	acxdwjt.exe	42
PID 2196 wrote to memory of 2640	2196	acxdwjt.exe	42
PID 2196 wrote to memory of 2640	2196	acxdwjt.exe	42
PID 2196 wrote to memory of 2640	2196	acxdwjt.exe	42
PID 2676 wrote to memory of 2656	2676	2025-02-01_04e437967a97228b8a21dc2a0c069a00_mafia.exe	43
PID 2676 wrote to memory of 2656	2676	2025-02-01_04e437967a97228b8a21dc2a0c069a00_mafia.exe	43
PID 2676 wrote to memory of 2656	2676	2025-02-01_04e437967a97228b8a21dc2a0c069a00_mafia.exe	43
PID 2676 wrote to memory of 2656	2676	2025-02-01_04e437967a97228b8a21dc2a0c069a00_mafia.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-02-01_04e437967a97228b8a21dc2a0c069a00_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-01_04e437967a97228b8a21dc2a0c069a00_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2676
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qfsryehl\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2788
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\acxdwjt.exe" C:\Windows\SysWOW64\qfsryehl\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2740
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create qfsryehl binPath= "C:\Windows\SysWOW64\qfsryehl\acxdwjt.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-01_04e437967a97228b8a21dc2a0c069a00_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2824
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description qfsryehl "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2288
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start qfsryehl
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2612
- 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:2656

C:\Windows\SysWOW64\qfsryehl\acxdwjt.exe
C:\Windows\SysWOW64\qfsryehl\acxdwjt.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-01_04e437967a97228b8a21dc2a0c069a00_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2196
- 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:2640

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\acxdwjt.exe

Filesize
14.3MB

MD5
242b6ae8c45f0965042d055a0aebabe2

SHA1
f0338d4a42b7e7fdc12c9185836a269aab473c4e

SHA256
fe29e9f1476a40901b698cfc3ab7a87684ef382ddd2db35d9605f32b8a4931ac

SHA512
5276562a80b1245a91861ace972a58896fc7cc3e56b702bd260eccb208befd21aebb02707f38b6e2ca642055f5e955d91b8068acbddb2186398fe86f654ba65b

Download Submit
memory/2196-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2640-11-0x0000000000110000-0x0000000000125000-memory.dmp

Filesize
84KB

Download
memory/2640-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2640-8-0x0000000000110000-0x0000000000125000-memory.dmp

Filesize
84KB

Download
memory/2640-17-0x0000000000110000-0x0000000000125000-memory.dmp

Filesize
84KB

Download
memory/2640-18-0x0000000000110000-0x0000000000125000-memory.dmp

Filesize
84KB

Download
memory/2676-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2676-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2676-1-0x0000000000500000-0x0000000000600000-memory.dmp

Filesize
1024KB

Download
memory/2676-14-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2676-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2676-15-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads