tofsee | f81c9417f0c21103d7dcf90a0d061944c5af2b3cb29f43e87d8649958ea84877

Analysis

max time kernel
146s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
30-01-2025 21:27

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General

Target

2025-01-30_151f608fcbf07aad716fe5bc95e45766_mafia.exe
Size

12.5MB
MD5

151f608fcbf07aad716fe5bc95e45766
SHA1

4180eead80294e8ec941f2e364ee8cc3fdcac541
SHA256

f81c9417f0c21103d7dcf90a0d061944c5af2b3cb29f43e87d8649958ea84877
SHA512

5cee7d48bc720821b875daf04b7e0714ab223bd1bcf441b456c24ac459f5636a0e06d0b95edd4696e248851962255f5c081608e0c3261175d2439fd6e30df11b
SSDEEP

393216:RXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXb:h

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\xpbnqlnw = "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
2028	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\xpbnqlnw\ImagePath = "C:\\Windows\\SysWOW64\\xpbnqlnw\\embfsqzz.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2504	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2800	embfsqzz.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2800 set thread context of 2504	2800	embfsqzz.exe	39

Launches sc.exe 3 IoCs

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

pid	Process
2928	sc.exe
2804	sc.exe
2688	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	netsh.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	embfsqzz.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	2025-01-30_151f608fcbf07aad716fe5bc95e45766_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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 1936	2692	2025-01-30_151f608fcbf07aad716fe5bc95e45766_mafia.exe	28
PID 2692 wrote to memory of 1936	2692	2025-01-30_151f608fcbf07aad716fe5bc95e45766_mafia.exe	28
PID 2692 wrote to memory of 1936	2692	2025-01-30_151f608fcbf07aad716fe5bc95e45766_mafia.exe	28
PID 2692 wrote to memory of 1936	2692	2025-01-30_151f608fcbf07aad716fe5bc95e45766_mafia.exe	28
PID 2692 wrote to memory of 2708	2692	2025-01-30_151f608fcbf07aad716fe5bc95e45766_mafia.exe	30
PID 2692 wrote to memory of 2708	2692	2025-01-30_151f608fcbf07aad716fe5bc95e45766_mafia.exe	30
PID 2692 wrote to memory of 2708	2692	2025-01-30_151f608fcbf07aad716fe5bc95e45766_mafia.exe	30
PID 2692 wrote to memory of 2708	2692	2025-01-30_151f608fcbf07aad716fe5bc95e45766_mafia.exe	30
PID 2692 wrote to memory of 2928	2692	2025-01-30_151f608fcbf07aad716fe5bc95e45766_mafia.exe	32
PID 2692 wrote to memory of 2928	2692	2025-01-30_151f608fcbf07aad716fe5bc95e45766_mafia.exe	32
PID 2692 wrote to memory of 2928	2692	2025-01-30_151f608fcbf07aad716fe5bc95e45766_mafia.exe	32
PID 2692 wrote to memory of 2928	2692	2025-01-30_151f608fcbf07aad716fe5bc95e45766_mafia.exe	32
PID 2692 wrote to memory of 2804	2692	2025-01-30_151f608fcbf07aad716fe5bc95e45766_mafia.exe	34
PID 2692 wrote to memory of 2804	2692	2025-01-30_151f608fcbf07aad716fe5bc95e45766_mafia.exe	34
PID 2692 wrote to memory of 2804	2692	2025-01-30_151f608fcbf07aad716fe5bc95e45766_mafia.exe	34
PID 2692 wrote to memory of 2804	2692	2025-01-30_151f608fcbf07aad716fe5bc95e45766_mafia.exe	34
PID 2692 wrote to memory of 2688	2692	2025-01-30_151f608fcbf07aad716fe5bc95e45766_mafia.exe	36
PID 2692 wrote to memory of 2688	2692	2025-01-30_151f608fcbf07aad716fe5bc95e45766_mafia.exe	36
PID 2692 wrote to memory of 2688	2692	2025-01-30_151f608fcbf07aad716fe5bc95e45766_mafia.exe	36
PID 2692 wrote to memory of 2688	2692	2025-01-30_151f608fcbf07aad716fe5bc95e45766_mafia.exe	36
PID 2800 wrote to memory of 2504	2800	embfsqzz.exe	39
PID 2800 wrote to memory of 2504	2800	embfsqzz.exe	39
PID 2800 wrote to memory of 2504	2800	embfsqzz.exe	39
PID 2800 wrote to memory of 2504	2800	embfsqzz.exe	39
PID 2800 wrote to memory of 2504	2800	embfsqzz.exe	39
PID 2800 wrote to memory of 2504	2800	embfsqzz.exe	39
PID 2692 wrote to memory of 2028	2692	2025-01-30_151f608fcbf07aad716fe5bc95e45766_mafia.exe	40
PID 2692 wrote to memory of 2028	2692	2025-01-30_151f608fcbf07aad716fe5bc95e45766_mafia.exe	40
PID 2692 wrote to memory of 2028	2692	2025-01-30_151f608fcbf07aad716fe5bc95e45766_mafia.exe	40
PID 2692 wrote to memory of 2028	2692	2025-01-30_151f608fcbf07aad716fe5bc95e45766_mafia.exe	40

C:\Users\Admin\AppData\Local\Temp\2025-01-30_151f608fcbf07aad716fe5bc95e45766_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-30_151f608fcbf07aad716fe5bc95e45766_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\xpbnqlnw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1936
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\embfsqzz.exe" C:\Windows\SysWOW64\xpbnqlnw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2708
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create xpbnqlnw binPath= "C:\Windows\SysWOW64\xpbnqlnw\embfsqzz.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-30_151f608fcbf07aad716fe5bc95e45766_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2928
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description xpbnqlnw "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2804
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start xpbnqlnw
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2688
- 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:2028

C:\Windows\SysWOW64\xpbnqlnw\embfsqzz.exe
C:\Windows\SysWOW64\xpbnqlnw\embfsqzz.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-30_151f608fcbf07aad716fe5bc95e45766_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2800
- 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:2504

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\embfsqzz.exe

Filesize
14.2MB

MD5
1f3a1df0469105a67022d2eb1286c6c7

SHA1
aabd51550c2c2967e45abbede6d90f9ed44089d4

SHA256
5ab7f4e0b832cc5042c53dd4f34f070467f1cec0ce8a34fba458e8823f4c0ae7

SHA512
76b7af84929e16aaac9799e7337887073d266e2ae756bfb530dd23a56dbc67aad675aa89f1c6542496904bfe92524c5be103af9b5c2447df491355e1950fd3e1

Download Submit
memory/2504-8-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2504-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2504-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2504-17-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2504-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

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

Filesize
84KB

Download
memory/2692-1-0x0000000000610000-0x0000000000710000-memory.dmp

Filesize
1024KB

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

Filesize
76KB

Download
memory/2692-14-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2692-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2692-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2800-12-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads