Overview

overview

10

Static

static

3

2025-03-30...er.exe

windows7-x64

10

2025-03-30...er.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    30/03/2025, 09:20

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General

  • Target

    2025-03-30_4988b1597a3f88204157ecb4755143d9_rhadamanthys_smoke-loader.exe

  • Size

    13.5MB

  • MD5

    4988b1597a3f88204157ecb4755143d9

  • SHA1

    8dce6f9d4b50546e7123a636057ba1aabf66f606

  • SHA256

    ca8cd50f6169f29ba5298e89fbf2ccaf1326dc507caa524131c25071e14855be

  • SHA512

    9de036a6270832d0ed18e4da9b4e24b661e0442b892fee72497a0b3676362319a9d509f2806315231ced9a03906d8ecfd39efa0a7513cd13e1625728b03d1019

  • SSDEEP

    49152:5qL7I7I7I7I7I7I7I7I7I7I7I7I7I7I7I7I7I7I7I7I7I7I7I7I7I7I7I7I7I7Iy:5l

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
  • Windows security bypass 2 TTPs 1 IoCs
    defense_evasiontrojan
  • 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
  • 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 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2025-03-30_4988b1597a3f88204157ecb4755143d9_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-03-30_4988b1597a3f88204157ecb4755143d9_rhadamanthys_smoke-loader.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2188
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\arhichuu\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2760
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\yavbuhr.exe" C:\Windows\SysWOW64\arhichuu\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2840
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create arhichuu binPath= "C:\Windows\SysWOW64\arhichuu\yavbuhr.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-03-30_4988b1597a3f88204157ecb4755143d9_rhadamanthys_smoke-loader.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2560
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description arhichuu "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2716
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start arhichuu
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2884
    • 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:2668
  • C:\Windows\SysWOW64\arhichuu\yavbuhr.exe
    C:\Windows\SysWOW64\arhichuu\yavbuhr.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-03-30_4988b1597a3f88204157ecb4755143d9_rhadamanthys_smoke-loader.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2720
    • 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:2848

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

2
T1562

Disable or Modify System Firewall

1
T1562.004

Disable or Modify Tools

1
T1562.001

Modify Registry

2
T1112

Credential Access

Discovery

System Information Discovery

1
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

    14.0MB

    MD5

    15f783e6464b0a229353776a794d46d8

    SHA1

    1814991e2b05fc46d16cf48499c2b8b3b0e4ffa4

    SHA256

    eab4557dbb9ae9f91a8f9c800055f0b3853aef3d4e9a9d232e0d1a984a6f3593

    SHA512

    34e2a39b9aba8b1d0b3790b9dc8cf13797e5cfff55f7c174c3f0d196f1c8facffd7393ef7dd08bb00561b3f2ef5b440bbf3583c14652809ce51a80e86dff268f

    Download Submit

  • memory/2188-7-0x0000000000400000-0x0000000000522000-memory.dmp

    Filesize

    1.1MB

    Download

  • memory/2188-3-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

    Download

  • memory/2188-2-0x0000000000220000-0x0000000000233000-memory.dmp

    Filesize

    76KB

    Download

  • memory/2188-9-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

    Download

  • memory/2188-8-0x0000000000220000-0x0000000000233000-memory.dmp

    Filesize

    76KB

    Download

  • memory/2188-1-0x00000000006C0000-0x00000000007C0000-memory.dmp

    Filesize

    1024KB

    Download

  • memory/2720-17-0x0000000000400000-0x0000000000522000-memory.dmp

    Filesize

    1.1MB

    Download

  • memory/2848-11-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

    Download

  • memory/2848-16-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

    Download

  • memory/2848-14-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

    Download

  • memory/2848-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2848-18-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

    Download