Overview

overview

10

Static

static

3

9e08c4e34c...c6.exe

windows7-x64

10

9e08c4e34c...c6.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    143s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-09-2024 11:03

Sharing

Copy URL
Twitter E-mail
Report Analysis Logs

General

  • Target

    9e08c4e34c5358916c1f360f4c82efc4d7bd77d587cda899691a49c3dffb1bc6.exe

  • Size

    213KB

  • MD5

    969450e69a3e85413b63c73abb733bdd

  • SHA1

    b506ca717ff22a749bf6e173a7d02b577564ce27

  • SHA256

    9e08c4e34c5358916c1f360f4c82efc4d7bd77d587cda899691a49c3dffb1bc6

  • SHA512

    8df1b276ff7f5cb67818ccc47158e3ba06f303e6da9aae1e0526c7537cb80d8a59e73e7aca80bd2cd0471a31a1dde49f7e96f05887ca66f9439b460ea3bda858

  • SSDEEP

    6144:PcDXnqPnz58kFjno63Fe/MMQm0Vdh1GQ:PsXq/z5V1nfFxjVdz

Score
10/10
tofseediscoveryevasionexecutionpersistenceprivilege_escalationtrojan

Malware Config

Extracted

Family

tofsee

C2

vanaheim.cn

jotunheim.name

Signatures

  • Tofsee

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

    trojantofsee
  • Creates new service(s) 2 TTPs
    persistenceexecution
  • Modifies Windows Firewall 2 TTPs 1 IoCs
    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.

  • Executes dropped EXE 1 IoCs
  • Drops file in System32 directory 2 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
  • Modifies data under HKEY_USERS 7 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9e08c4e34c5358916c1f360f4c82efc4d7bd77d587cda899691a49c3dffb1bc6.exe
    "C:\Users\Admin\AppData\Local\Temp\9e08c4e34c5358916c1f360f4c82efc4d7bd77d587cda899691a49c3dffb1bc6.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2528
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ldgnrqpk\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1620
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\nhhzcmqc.exe" C:\Windows\SysWOW64\ldgnrqpk\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4368
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create ldgnrqpk binPath= "C:\Windows\SysWOW64\ldgnrqpk\nhhzcmqc.exe /d\"C:\Users\Admin\AppData\Local\Temp\9e08c4e34c5358916c1f360f4c82efc4d7bd77d587cda899691a49c3dffb1bc6.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:4104
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description ldgnrqpk "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:3960
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start ldgnrqpk
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2000
    • 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:1084
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4464,i,8231329449558834090,4540802069600791165,262144 --variations-seed-version --mojo-platform-channel-handle=4028 /prefetch:8
    1⤵
      PID:1520
    • C:\Windows\SysWOW64\ldgnrqpk\nhhzcmqc.exe
      C:\Windows\SysWOW64\ldgnrqpk\nhhzcmqc.exe /d"C:\Users\Admin\AppData\Local\Temp\9e08c4e34c5358916c1f360f4c82efc4d7bd77d587cda899691a49c3dffb1bc6.exe"
      1⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1400
      • C:\Windows\SysWOW64\svchost.exe
        svchost.exe
        2⤵
        • Sets service image path in registry
        • Drops file in System32 directory
        • System Location Discovery: System Language Discovery
        • Modifies data under HKEY_USERS
        PID:3500

    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

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      11.6MB

      MD5

      cf57a37586657636bca5b36453baf196

      SHA1

      3fe43982d432057621e45c05453ae731b62e3729

      SHA256

      4dffa2f6b7173a5fcecfb95df9d67cc6639bde9ddb0c5de3a4076995d08ca5e6

      SHA512

      089de13b1e6428aef88501aba8e424be88f7782096dfc4ca1b10fc003615fa60d248e6d4c68ab5e9a6d8a692254ef0e4414d164f6c911d6f054e82dea5f20441

      Download Submit

    • memory/1400-15-0x0000000000400000-0x000000000043C000-memory.dmp

      Filesize

      240KB

      Download

    • memory/1400-11-0x0000000000400000-0x000000000043C000-memory.dmp

      Filesize

      240KB

      Download

    • memory/2528-2-0x00000000006A0000-0x00000000006B3000-memory.dmp

      Filesize

      76KB

      Download

    • memory/2528-3-0x0000000000400000-0x0000000000415000-memory.dmp

      Filesize

      84KB

      Download

    • memory/2528-7-0x0000000000400000-0x000000000043C000-memory.dmp

      Filesize

      240KB

      Download

    • memory/2528-8-0x0000000000740000-0x0000000000840000-memory.dmp

      Filesize

      1024KB

      Download

    • memory/2528-12-0x0000000000400000-0x0000000000415000-memory.dmp

      Filesize

      84KB

      Download

    • memory/2528-10-0x00000000006A0000-0x00000000006B3000-memory.dmp

      Filesize

      76KB

      Download

    • memory/2528-1-0x0000000000740000-0x0000000000840000-memory.dmp

      Filesize

      1024KB

      Download

    • memory/3500-49-0x0000000002DD0000-0x0000000002DD5000-memory.dmp

      Filesize

      20KB

      Download

    • memory/3500-42-0x0000000001F30000-0x0000000001F40000-memory.dmp

      Filesize

      64KB

      Download

    • memory/3500-18-0x0000000000970000-0x0000000000985000-memory.dmp

      Filesize

      84KB

      Download

    • memory/3500-25-0x0000000002800000-0x0000000002A0F000-memory.dmp

      Filesize

      2.1MB

      Download

    • memory/3500-57-0x0000000002DE0000-0x0000000002DE7000-memory.dmp

      Filesize

      28KB

      Download

    • memory/3500-56-0x0000000007740000-0x0000000007B4B000-memory.dmp

      Filesize

      4.0MB

      Download

    • memory/3500-53-0x0000000007740000-0x0000000007B4B000-memory.dmp

      Filesize

      4.0MB

      Download

    • memory/3500-52-0x0000000002DD0000-0x0000000002DD5000-memory.dmp

      Filesize

      20KB

      Download

    • memory/3500-13-0x0000000000970000-0x0000000000985000-memory.dmp

      Filesize

      84KB

      Download

    • memory/3500-48-0x0000000001F30000-0x0000000001F40000-memory.dmp

      Filesize

      64KB

      Download

    • memory/3500-47-0x0000000001F30000-0x0000000001F40000-memory.dmp

      Filesize

      64KB

      Download

    • memory/3500-46-0x0000000001F30000-0x0000000001F40000-memory.dmp

      Filesize

      64KB

      Download

    • memory/3500-45-0x0000000001F30000-0x0000000001F40000-memory.dmp

      Filesize

      64KB

      Download

    • memory/3500-44-0x0000000001F30000-0x0000000001F40000-memory.dmp

      Filesize

      64KB

      Download

    • memory/3500-43-0x0000000001F30000-0x0000000001F40000-memory.dmp

      Filesize

      64KB

      Download

    • memory/3500-17-0x0000000000970000-0x0000000000985000-memory.dmp

      Filesize

      84KB

      Download

    • memory/3500-41-0x0000000001F30000-0x0000000001F40000-memory.dmp

      Filesize

      64KB

      Download

    • memory/3500-40-0x0000000001F30000-0x0000000001F40000-memory.dmp

      Filesize

      64KB

      Download

    • memory/3500-39-0x0000000001F30000-0x0000000001F40000-memory.dmp

      Filesize

      64KB

      Download

    • memory/3500-38-0x0000000001F30000-0x0000000001F40000-memory.dmp

      Filesize

      64KB

      Download

    • memory/3500-37-0x0000000001F30000-0x0000000001F40000-memory.dmp

      Filesize

      64KB

      Download

    • memory/3500-36-0x0000000001F30000-0x0000000001F40000-memory.dmp

      Filesize

      64KB

      Download

    • memory/3500-35-0x0000000001F30000-0x0000000001F40000-memory.dmp

      Filesize

      64KB

      Download

    • memory/3500-34-0x0000000001F30000-0x0000000001F40000-memory.dmp

      Filesize

      64KB

      Download

    • memory/3500-33-0x0000000001F30000-0x0000000001F40000-memory.dmp

      Filesize

      64KB

      Download

    • memory/3500-32-0x0000000001F30000-0x0000000001F40000-memory.dmp

      Filesize

      64KB

      Download

    • memory/3500-29-0x0000000001F30000-0x0000000001F40000-memory.dmp

      Filesize

      64KB

      Download

    • memory/3500-26-0x0000000001F20000-0x0000000001F26000-memory.dmp

      Filesize

      24KB

      Download

    • memory/3500-22-0x0000000002800000-0x0000000002A0F000-memory.dmp

      Filesize

      2.1MB

      Download