tofsee | 30db7f3a80913f3a6103ec7422b5b27178f0968752e816b244c1754071b1cade

Analysis

max time kernel
145s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
01-02-2025 20:37

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General

Target

2025-02-01_c599f2a3400f4a202674d99dc7e018f2_mafia.exe
Size

11.6MB
MD5

c599f2a3400f4a202674d99dc7e018f2
SHA1

486fd0ff2f0b2f2ff8d9b0f881ee4dcef8a794db
SHA256

30db7f3a80913f3a6103ec7422b5b27178f0968752e816b244c1754071b1cade
SHA512

67c21d11173c57e2068f7d761439e6a957c8aae54e5007ff03c52602f0acad8552a698583b93ebd54f57a6cf8219257e7cff55a6fae48360c602cdd8aeada2f7
SSDEEP

6144:ZLQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQg:6TYe+D2jFu+iZoUFhAz

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\buxwtxzt = "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
2636	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\buxwtxzt\ImagePath = "C:\\Windows\\SysWOW64\\buxwtxzt\\zzalghfn.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2784	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2808	zzalghfn.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2808 set thread context of 2784	2808	zzalghfn.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2752	sc.exe
1828	sc.exe
2620	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	2025-02-01_c599f2a3400f4a202674d99dc7e018f2_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	sc.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	zzalghfn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2592 wrote to memory of 2060	2592	2025-02-01_c599f2a3400f4a202674d99dc7e018f2_mafia.exe	31
PID 2592 wrote to memory of 2060	2592	2025-02-01_c599f2a3400f4a202674d99dc7e018f2_mafia.exe	31
PID 2592 wrote to memory of 2060	2592	2025-02-01_c599f2a3400f4a202674d99dc7e018f2_mafia.exe	31
PID 2592 wrote to memory of 2060	2592	2025-02-01_c599f2a3400f4a202674d99dc7e018f2_mafia.exe	31
PID 2592 wrote to memory of 2420	2592	2025-02-01_c599f2a3400f4a202674d99dc7e018f2_mafia.exe	33
PID 2592 wrote to memory of 2420	2592	2025-02-01_c599f2a3400f4a202674d99dc7e018f2_mafia.exe	33
PID 2592 wrote to memory of 2420	2592	2025-02-01_c599f2a3400f4a202674d99dc7e018f2_mafia.exe	33
PID 2592 wrote to memory of 2420	2592	2025-02-01_c599f2a3400f4a202674d99dc7e018f2_mafia.exe	33
PID 2592 wrote to memory of 1828	2592	2025-02-01_c599f2a3400f4a202674d99dc7e018f2_mafia.exe	35
PID 2592 wrote to memory of 1828	2592	2025-02-01_c599f2a3400f4a202674d99dc7e018f2_mafia.exe	35
PID 2592 wrote to memory of 1828	2592	2025-02-01_c599f2a3400f4a202674d99dc7e018f2_mafia.exe	35
PID 2592 wrote to memory of 1828	2592	2025-02-01_c599f2a3400f4a202674d99dc7e018f2_mafia.exe	35
PID 2592 wrote to memory of 2620	2592	2025-02-01_c599f2a3400f4a202674d99dc7e018f2_mafia.exe	37
PID 2592 wrote to memory of 2620	2592	2025-02-01_c599f2a3400f4a202674d99dc7e018f2_mafia.exe	37
PID 2592 wrote to memory of 2620	2592	2025-02-01_c599f2a3400f4a202674d99dc7e018f2_mafia.exe	37
PID 2592 wrote to memory of 2620	2592	2025-02-01_c599f2a3400f4a202674d99dc7e018f2_mafia.exe	37
PID 2592 wrote to memory of 2752	2592	2025-02-01_c599f2a3400f4a202674d99dc7e018f2_mafia.exe	39
PID 2592 wrote to memory of 2752	2592	2025-02-01_c599f2a3400f4a202674d99dc7e018f2_mafia.exe	39
PID 2592 wrote to memory of 2752	2592	2025-02-01_c599f2a3400f4a202674d99dc7e018f2_mafia.exe	39
PID 2592 wrote to memory of 2752	2592	2025-02-01_c599f2a3400f4a202674d99dc7e018f2_mafia.exe	39
PID 2592 wrote to memory of 2636	2592	2025-02-01_c599f2a3400f4a202674d99dc7e018f2_mafia.exe	42
PID 2592 wrote to memory of 2636	2592	2025-02-01_c599f2a3400f4a202674d99dc7e018f2_mafia.exe	42
PID 2592 wrote to memory of 2636	2592	2025-02-01_c599f2a3400f4a202674d99dc7e018f2_mafia.exe	42
PID 2592 wrote to memory of 2636	2592	2025-02-01_c599f2a3400f4a202674d99dc7e018f2_mafia.exe	42
PID 2808 wrote to memory of 2784	2808	zzalghfn.exe	43
PID 2808 wrote to memory of 2784	2808	zzalghfn.exe	43
PID 2808 wrote to memory of 2784	2808	zzalghfn.exe	43
PID 2808 wrote to memory of 2784	2808	zzalghfn.exe	43
PID 2808 wrote to memory of 2784	2808	zzalghfn.exe	43
PID 2808 wrote to memory of 2784	2808	zzalghfn.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-02-01_c599f2a3400f4a202674d99dc7e018f2_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-01_c599f2a3400f4a202674d99dc7e018f2_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2592
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\buxwtxzt\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2060
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\zzalghfn.exe" C:\Windows\SysWOW64\buxwtxzt\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2420
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create buxwtxzt binPath= "C:\Windows\SysWOW64\buxwtxzt\zzalghfn.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-01_c599f2a3400f4a202674d99dc7e018f2_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1828
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description buxwtxzt "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2620
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start buxwtxzt
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2752
- 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:2636

C:\Windows\SysWOW64\buxwtxzt\zzalghfn.exe
C:\Windows\SysWOW64\buxwtxzt\zzalghfn.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-01_c599f2a3400f4a202674d99dc7e018f2_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2808
- 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:2784

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\zzalghfn.exe

Filesize
12.4MB

MD5
0ea3377969b56e8d546ee456bfef1a99

SHA1
ff5557dff74a2f392a170c2f8495028fee87a397

SHA256
cff0c6ab3629fc8961d0d21b22a5c74ef9a7eb520c996592a35e62f6b5bdb5e1

SHA512
f7333ede536b0ce805c68be46d15789083420051f85d5f1b233ac9522570b979c811d25f50b0585f3ef3a42e29977c87b4ce1f7d103b652cc480d0f8149a0f08

Download Submit
memory/2592-13-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2592-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2592-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2592-8-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2592-14-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2592-1-0x0000000000550000-0x0000000000650000-memory.dmp

Filesize
1024KB

Download
memory/2784-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2784-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2784-9-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2784-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2784-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2808-17-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads