Overview

overview

10

Static

static

3

2025-04-04...er.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    145s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250314-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/04/2025, 06:20

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General

  • Target

    2025-04-04_fdfed1c304302f40c823d279799dcb3d_amadey_rhadamanthys_smoke-loader.exe

  • Size

    11.9MB

  • MD5

    fdfed1c304302f40c823d279799dcb3d

  • SHA1

    d6a811a72f0083d4cb011cea144718f2cf3b84ad

  • SHA256

    c910c55ca86cbedb0b13a39504b0810886fe3223ce9e668045ee48d12e137b4d

  • SHA512

    a21f10523e3e0f51e6a43e5b6b35754ce2f4f2bfa740a42a75e216ea5c0e8d1aed7c20dbb7ef354c6721314d27b884455ce1895b65aaf86b957ff9dc2da17664

  • SSDEEP

    3072:GUYC9q24pkJimkGgbdGz9uIYogXFYfKkqCZB8h0e2R10JKuC5PsFRRRRRRRRRRRU:GUYgq6krsz9Ti1h0eSuJ4s4

Score
10/10
tofseedefense_evasiondiscoveryexecutionpersistenceprivilege_escalationtrojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Signatures

  • Tofsee

    Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

    trojantofsee
  • Tofsee family
    tofsee
  • Creates new service(s) 2 TTPs
    persistenceexecution
  • Modifies Windows Firewall 2 TTPs 1 IoCs
    defense_evasion
  • Sets service image path in registry 2 TTPs 1 IoCs
    persistence
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Launches sc.exe 3 IoCs

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

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • 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.

    persistenceprivilege_escalation
  • 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
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2025-04-04_fdfed1c304302f40c823d279799dcb3d_amadey_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-04-04_fdfed1c304302f40c823d279799dcb3d_amadey_rhadamanthys_smoke-loader.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2484
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\dufchkjc\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:5180
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\yavbuhr.exe" C:\Windows\SysWOW64\dufchkjc\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1772
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create dufchkjc binPath= "C:\Windows\SysWOW64\dufchkjc\yavbuhr.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-04-04_fdfed1c304302f40c823d279799dcb3d_amadey_rhadamanthys_smoke-loader.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:4608
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description dufchkjc "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:4788
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start dufchkjc
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:6108
    • 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:4844
  • C:\Windows\SysWOW64\dufchkjc\yavbuhr.exe
    C:\Windows\SysWOW64\dufchkjc\yavbuhr.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-04-04_fdfed1c304302f40c823d279799dcb3d_amadey_rhadamanthys_smoke-loader.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1896
    • C:\Windows\SysWOW64\svchost.exe
      svchost.exe
      2⤵
      • Sets service image path in registry
      • Deletes itself
      • System Location Discovery: System Language Discovery
      PID:4888

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1
T1569

Service Execution

1
T1569.002

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Defense Evasion

Impair Defenses

1
T1562

Disable or Modify System Firewall

1
T1562.004

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\yavbuhr.exe
    Filesize

    11.5MB

    MD5

    e5dd5eed8c0636094267a96dbc3f3c3f

    SHA1

    c5cb8056ee56595198a40c8e37b3c48e8aad8ea3

    SHA256

    4afb68939212560d28b8bf559d78c827cddd3aa7e83b485bc58d64b6c560cbb4

    SHA512

    2344310d5f5df1c473763c139c800c7a224973cca346efa609b7571009c39cf90f1c8018e5f28305fb687ca088e168c1ad02c915ee0dd5a19122019e522c4f8d

    Download Submit

  • memory/1896-10-0x0000000000400000-0x0000000003DA3000-memory.dmp

    Filesize

    57.6MB

    Download

  • memory/2484-1-0x0000000004070000-0x0000000004170000-memory.dmp

    Filesize

    1024KB

    Download

  • memory/2484-2-0x0000000004050000-0x0000000004063000-memory.dmp

    Filesize

    76KB

    Download

  • memory/2484-3-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

    Download

  • memory/2484-13-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

    Download

  • memory/2484-12-0x0000000004050000-0x0000000004063000-memory.dmp

    Filesize

    76KB

    Download

  • memory/2484-11-0x0000000000400000-0x0000000003DA3000-memory.dmp

    Filesize

    57.6MB

    Download

  • memory/4888-8-0x0000000000BD0000-0x0000000000BE5000-memory.dmp

    Filesize

    84KB

    Download

  • memory/4888-14-0x0000000000BD0000-0x0000000000BE5000-memory.dmp

    Filesize

    84KB

    Download

  • memory/4888-15-0x0000000000BD0000-0x0000000000BE5000-memory.dmp

    Filesize

    84KB

    Download