Overview

overview

10

Static

static

10

002d23802f...a9.elf

ubuntu-24.04-amd64

006e75ccf3...e6.exe

windows7-x64

3

006e75ccf3...e6.exe

windows10-2004-x64

3

010b63314e...17.exe

windows7-x64

10

010b63314e...17.exe

windows10-2004-x64

10

017f252187...45.exe

windows7-x64

7

017f252187...45.exe

windows10-2004-x64

7

$PLUGINSDI...em.dll

windows7-x64

3

$PLUGINSDI...em.dll

windows10-2004-x64

3

Unmonument...GL.dll

windows7-x64

1

Unmonument...GL.dll

windows10-2004-x64

1

025a7cc996...12.exe

windows7-x64

10

025a7cc996...12.exe

windows10-2004-x64

10

026a0d5ada...ed.exe

windows7-x64

10

026a0d5ada...ed.exe

windows10-2004-x64

10

0296e49137...b6.exe

windows7-x64

10

0296e49137...b6.exe

windows10-2004-x64

10

0382436149...62.exe

windows7-x64

10

0382436149...62.exe

windows10-2004-x64

10

039b7cbbe0...f4.exe

windows7-x64

039b7cbbe0...f4.exe

windows10-2004-x64

03a0e7298d...43.exe

windows7-x64

10

03a0e7298d...43.exe

windows10-2004-x64

10

044d4141fa...83.apk

android-9-x86

6

044d4141fa...83.apk

android-10-x64

6

044d4141fa...83.apk

android-11-x64

6

0488488429...83.exe

windows7-x64

10

0488488429...83.exe

windows10-2004-x64

10

04ba453903...df.elf

ubuntu-22.04-amd64

8

054c0c0eb0...5c.exe

windows7-x64

10

054c0c0eb0...5c.exe

windows10-2004-x64

10

058c3a111c...0bc.js

windows7-x64

10

Resubmissions

21-12-2024 22:57

241221-2xpr2atjar 10

21-12-2024 20:29

241221-y9xfvsyngy 10

Analysis

  • max time kernel
    150s
  • max time network
    182s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-12-2024 20:29

Sharing

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General

  • Target

    0488488429b7776b837be76cef378782ec22ebbd71fe37ae16b3f325e0742283.exe

  • Size

    221KB

  • MD5

    e3e5f8674ae7edbda17de024898ec0ce

  • SHA1

    de218079278eec481f86423fe30d66ad07b190b1

  • SHA256

    0488488429b7776b837be76cef378782ec22ebbd71fe37ae16b3f325e0742283

  • SHA512

    4630b561ff915fb42e971c302a6932373cd2a218e14021f96beff80f890fa150b65fe568df5496370bf509d8da0a65dd6818fcaaa287342a5e9f9799b3e9b670

  • SSDEEP

    3072:9fYc8VpKgQNLMFBwG62k5/qlYmpIAuvE6rEvGOZqns3mnnK:9fuQLnGUxmpIAuvxwWs3Gn

Score
10/10
tofseediscoveryevasionexecutionpersistenceprivilege_escalationtrojan

Malware Config

Extracted

Family

tofsee

C2

svartalfheim.top

jotunheim.name

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
    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
  • 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
  • Program crash 2 IoCs
  • 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\0488488429b7776b837be76cef378782ec22ebbd71fe37ae16b3f325e0742283.exe
    "C:\Users\Admin\AppData\Local\Temp\0488488429b7776b837be76cef378782ec22ebbd71fe37ae16b3f325e0742283.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2552
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zlxhezvv\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1500
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\wddhiscn.exe" C:\Windows\SysWOW64\zlxhezvv\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4368
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create zlxhezvv binPath= "C:\Windows\SysWOW64\zlxhezvv\wddhiscn.exe /d\"C:\Users\Admin\AppData\Local\Temp\0488488429b7776b837be76cef378782ec22ebbd71fe37ae16b3f325e0742283.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:4128
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description zlxhezvv "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2880
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start zlxhezvv
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:1640
    • 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:3156
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2552 -s 1280
      2⤵
      • Program crash
      PID:2756
  • C:\Windows\SysWOW64\zlxhezvv\wddhiscn.exe
    C:\Windows\SysWOW64\zlxhezvv\wddhiscn.exe /d"C:\Users\Admin\AppData\Local\Temp\0488488429b7776b837be76cef378782ec22ebbd71fe37ae16b3f325e0742283.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:540
    • C:\Windows\SysWOW64\svchost.exe
      svchost.exe
      2⤵
      • Sets service image path in registry
      • Deletes itself
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      PID:1244
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 540 -s 512
      2⤵
      • Program crash
      PID:3636
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 2552 -ip 2552
    1⤵
      PID:2480
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 540 -ip 540
      1⤵
        PID:4848

      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

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      Downloads

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

        11.7MB

        MD5

        db278e21b5bb1787659e63374fc7b8f3

        SHA1

        df1c0e829f1af14e391e72164a53f6fee82e1e93

        SHA256

        ae0c52cf9e3606b1b03ffaa8f7b5364fe8aaf94c8e32e9daa77ea4c2de351758

        SHA512

        289780220dab0c6814f6a1ac10f8318bd79a180080dca3ca3f75d757004a36ad0cb1ca2dc47594a1f5725d1e589a68c1b7dcd6b2f45aacd5094ffd6991451c32

        Download Submit

      • memory/540-11-0x0000000000400000-0x0000000000595000-memory.dmp

        Filesize

        1.6MB

        Download

      • memory/540-18-0x0000000000400000-0x0000000000595000-memory.dmp

        Filesize

        1.6MB

        Download

      • memory/540-12-0x0000000000400000-0x0000000000595000-memory.dmp

        Filesize

        1.6MB

        Download

      • memory/1244-45-0x0000000001FF0000-0x0000000002000000-memory.dmp

        Filesize

        64KB

        Download

      • memory/1244-42-0x0000000001FF0000-0x0000000002000000-memory.dmp

        Filesize

        64KB

        Download

      • memory/1244-54-0x0000000007900000-0x0000000007D0B000-memory.dmp

        Filesize

        4.0MB

        Download

      • memory/1244-20-0x0000000002A00000-0x0000000002C0F000-memory.dmp

        Filesize

        2.1MB

        Download

      • memory/1244-32-0x0000000001FF0000-0x0000000002000000-memory.dmp

        Filesize

        64KB

        Download

      • memory/1244-13-0x00000000008B0000-0x00000000008C5000-memory.dmp

        Filesize

        84KB

        Download

      • memory/1244-15-0x00000000008B0000-0x00000000008C5000-memory.dmp

        Filesize

        84KB

        Download

      • memory/1244-16-0x00000000008B0000-0x00000000008C5000-memory.dmp

        Filesize

        84KB

        Download

      • memory/1244-23-0x0000000002A00000-0x0000000002C0F000-memory.dmp

        Filesize

        2.1MB

        Download

      • memory/1244-46-0x0000000001FF0000-0x0000000002000000-memory.dmp

        Filesize

        64KB

        Download

      • memory/1244-55-0x0000000002DE0000-0x0000000002DE7000-memory.dmp

        Filesize

        28KB

        Download

      • memory/1244-51-0x0000000007900000-0x0000000007D0B000-memory.dmp

        Filesize

        4.0MB

        Download

      • memory/1244-50-0x0000000002DD0000-0x0000000002DD5000-memory.dmp

        Filesize

        20KB

        Download

      • memory/1244-47-0x0000000002DD0000-0x0000000002DD5000-memory.dmp

        Filesize

        20KB

        Download

      • memory/1244-24-0x0000000001FE0000-0x0000000001FE6000-memory.dmp

        Filesize

        24KB

        Download

      • memory/1244-44-0x0000000001FF0000-0x0000000002000000-memory.dmp

        Filesize

        64KB

        Download

      • memory/1244-43-0x0000000001FF0000-0x0000000002000000-memory.dmp

        Filesize

        64KB

        Download

      • memory/1244-27-0x0000000001FF0000-0x0000000002000000-memory.dmp

        Filesize

        64KB

        Download

      • memory/1244-41-0x0000000001FF0000-0x0000000002000000-memory.dmp

        Filesize

        64KB

        Download

      • memory/1244-40-0x0000000001FF0000-0x0000000002000000-memory.dmp

        Filesize

        64KB

        Download

      • memory/1244-39-0x0000000001FF0000-0x0000000002000000-memory.dmp

        Filesize

        64KB

        Download

      • memory/1244-38-0x0000000001FF0000-0x0000000002000000-memory.dmp

        Filesize

        64KB

        Download

      • memory/1244-37-0x0000000001FF0000-0x0000000002000000-memory.dmp

        Filesize

        64KB

        Download

      • memory/1244-36-0x0000000001FF0000-0x0000000002000000-memory.dmp

        Filesize

        64KB

        Download

      • memory/1244-35-0x0000000001FF0000-0x0000000002000000-memory.dmp

        Filesize

        64KB

        Download

      • memory/1244-34-0x0000000001FF0000-0x0000000002000000-memory.dmp

        Filesize

        64KB

        Download

      • memory/1244-33-0x0000000001FF0000-0x0000000002000000-memory.dmp

        Filesize

        64KB

        Download

      • memory/1244-31-0x0000000001FF0000-0x0000000002000000-memory.dmp

        Filesize

        64KB

        Download

      • memory/1244-30-0x0000000001FF0000-0x0000000002000000-memory.dmp

        Filesize

        64KB

        Download

      • memory/2552-8-0x00000000006F0000-0x0000000000703000-memory.dmp

        Filesize

        76KB

        Download

      • memory/2552-1-0x0000000000890000-0x0000000000990000-memory.dmp

        Filesize

        1024KB

        Download

      • memory/2552-2-0x00000000006F0000-0x0000000000703000-memory.dmp

        Filesize

        76KB

        Download

      • memory/2552-3-0x0000000000400000-0x0000000000415000-memory.dmp

        Filesize

        84KB

        Download

      • memory/2552-9-0x0000000000400000-0x0000000000415000-memory.dmp

        Filesize

        84KB

        Download

      • memory/2552-7-0x0000000000400000-0x0000000000595000-memory.dmp

        Filesize

        1.6MB

        Download