Overview

overview

10

Static

static

10

09fe7735f7...8a.exe

windows7-x64

10

09fe7735f7...8a.exe

windows10-2004-x64

10

0a08857b3b...19.vbs

windows7-x64

10

0a08857b3b...19.vbs

windows10-2004-x64

10

0a92b6b6c9...d0.exe

windows7-x64

10

0a92b6b6c9...d0.exe

windows10-2004-x64

10

0b1f6297e8...e6.exe

windows7-x64

10

0b1f6297e8...e6.exe

windows10-2004-x64

0b4ffb13a4...aa.exe

windows7-x64

10

0b4ffb13a4...aa.exe

windows10-2004-x64

10

0b9a6ed57e...55.exe

windows7-x64

7

0b9a6ed57e...55.exe

windows10-2004-x64

7

0be395d43c...ca.exe

windows7-x64

10

0be395d43c...ca.exe

windows10-2004-x64

7

0c046f07cd...89.exe

windows7-x64

10

0c046f07cd...89.exe

windows10-2004-x64

10

0c1e5acd77...53.exe

windows7-x64

10

0c1e5acd77...53.exe

windows10-2004-x64

10

0d825ad1df...37.exe

windows7-x64

10

0d825ad1df...37.exe

windows10-2004-x64

10

0db3c21dec...f9.exe

windows7-x64

10

0db3c21dec...f9.exe

windows10-2004-x64

10

0de875f11e...e9.exe

windows7-x64

10

0de875f11e...e9.exe

windows10-2004-x64

0e3bb95b7b...77.exe

windows7-x64

10

0e3bb95b7b...77.exe

windows10-2004-x64

10

0edd5342b1...6d.exe

windows7-x64

3

0edd5342b1...6d.exe

windows10-2004-x64

0f4450a6b2...b6.exe

windows7-x64

10

0f4450a6b2...b6.exe

windows10-2004-x64

10

10758789ca...d1.exe

windows7-x64

10

10758789ca...d1.exe

windows10-2004-x64

10

Resubmissions

10-11-2024 21:28

241110-1bhk6avgrr 10

Analysis

  • max time kernel
    1796s
  • max time network
    1825s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    11-11-2024 02:47

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General

  • Target

    0f4450a6b298d95d7fdd6ac63a917b1975221fe90e520ff30e9c6b0d8a4955b6.exe

  • Size

    219KB

  • MD5

    566a30af3032ed8c2718c99a9c0d7289

  • SHA1

    4d08ff905ddfdaf7f39465b9af09b6441e8993d7

  • SHA256

    0f4450a6b298d95d7fdd6ac63a917b1975221fe90e520ff30e9c6b0d8a4955b6

  • SHA512

    03aa457d3d68d96cdcb8a2d234fac21466bac359bc10948ac1b79222361e992d456df8ba89c8c4e0ada87da0502857a3586ed232a114db9823f13d60308526b1

  • SSDEEP

    3072:UXWlLKlKMO5qI0Ac7ztrQNZezyzh91Ih3Az9Mo+ATIulLwt:QQLrM937JUNZeeFTEMuoZTIuh

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
  • Windows security bypass 2 TTPs 1 IoCs
    evasiontrojan
  • 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
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • 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 20 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0f4450a6b298d95d7fdd6ac63a917b1975221fe90e520ff30e9c6b0d8a4955b6.exe
    "C:\Users\Admin\AppData\Local\Temp\0f4450a6b298d95d7fdd6ac63a917b1975221fe90e520ff30e9c6b0d8a4955b6.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2540
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\julalphf\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2968
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\lbhotfjy.exe" C:\Windows\SysWOW64\julalphf\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2712
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create julalphf binPath= "C:\Windows\SysWOW64\julalphf\lbhotfjy.exe /d\"C:\Users\Admin\AppData\Local\Temp\0f4450a6b298d95d7fdd6ac63a917b1975221fe90e520ff30e9c6b0d8a4955b6.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2332
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description julalphf "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 julalphf
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2936
    • 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:2804
  • C:\Windows\SysWOW64\julalphf\lbhotfjy.exe
    C:\Windows\SysWOW64\julalphf\lbhotfjy.exe /d"C:\Users\Admin\AppData\Local\Temp\0f4450a6b298d95d7fdd6ac63a917b1975221fe90e520ff30e9c6b0d8a4955b6.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2844
    • C:\Windows\SysWOW64\svchost.exe
      svchost.exe
      2⤵
      • Windows security bypass
      • 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:2692

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

Replay Monitor

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Downloads

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

    10.8MB

    MD5

    2c4e42db36d4d71de939d6abde135e71

    SHA1

    de6676ae98c002d3221295ecff1bd9b21a66ac51

    SHA256

    7eeffdc1f520fb4b481dd98d8a287b3de8ec1f42fabaa996699cf65e5d56a6c1

    SHA512

    3fef30a9f553607ead6685d8a33482a499f54f7e9fb4981d1d9b2d8d2f143dfe35f7b62445b2804da3a068663521502ea9ae117a814864a078e0e14529b8933a

    Download Submit

  • C:\Windows\SysWOW64\config\systemprofile:.repos
    Filesize

    1.2MB

    MD5

    06de7fa372134e71ee8dadf99c1d7b42

    SHA1

    b4a4617f9a1506200c9a58bc9ea5f5970fc884b3

    SHA256

    518b59f23ec0b1d215d5e7d1bfa1265161918062957a27d93aad019734f7ffb5

    SHA512

    06e743faf8e9cb50af525ab7f294f67330c01dcec7ed407703e19894c4839ad33743539660db948fc37be03a68a9988b5246627eded6eec2f3a138bc3652495d

    Download Submit

  • memory/2540-1-0x0000000002DB0000-0x0000000002EB0000-memory.dmp

    Filesize

    1024KB

    Download

  • memory/2540-2-0x0000000000230000-0x0000000000243000-memory.dmp

    Filesize

    76KB

    Download

  • memory/2540-3-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

    Download

  • memory/2540-10-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

    Download

  • memory/2540-9-0x0000000000230000-0x0000000000243000-memory.dmp

    Filesize

    76KB

    Download

  • memory/2540-8-0x0000000000400000-0x0000000002C25000-memory.dmp

    Filesize

    40.1MB

    Download

  • memory/2692-38-0x0000000000120000-0x0000000000130000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2692-51-0x0000000005820000-0x0000000005C2B000-memory.dmp

    Filesize

    4.0MB

    Download

  • memory/2692-17-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

    Download

  • memory/2692-18-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

    Download

  • memory/2692-14-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

    Download

  • memory/2692-23-0x0000000001C20000-0x0000000001E2F000-memory.dmp

    Filesize

    2.1MB

    Download

  • memory/2692-24-0x0000000000110000-0x0000000000116000-memory.dmp

    Filesize

    24KB

    Download

  • memory/2692-27-0x0000000000120000-0x0000000000130000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2692-20-0x0000000001C20000-0x0000000001E2F000-memory.dmp

    Filesize

    2.1MB

    Download

  • memory/2692-30-0x0000000000120000-0x0000000000130000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2692-44-0x0000000000120000-0x0000000000130000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2692-31-0x0000000000120000-0x0000000000130000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2692-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2692-47-0x0000000000170000-0x0000000000175000-memory.dmp

    Filesize

    20KB

    Download

  • memory/2692-55-0x0000000000180000-0x0000000000187000-memory.dmp

    Filesize

    28KB

    Download

  • memory/2692-12-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

    Download

  • memory/2692-50-0x0000000000170000-0x0000000000175000-memory.dmp

    Filesize

    20KB

    Download

  • memory/2692-46-0x0000000000120000-0x0000000000130000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2692-45-0x0000000000120000-0x0000000000130000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2692-43-0x0000000000120000-0x0000000000130000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2692-42-0x0000000000120000-0x0000000000130000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2692-41-0x0000000000120000-0x0000000000130000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2692-40-0x0000000000120000-0x0000000000130000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2692-54-0x0000000005820000-0x0000000005C2B000-memory.dmp

    Filesize

    4.0MB

    Download

  • memory/2692-39-0x0000000000120000-0x0000000000130000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2692-37-0x0000000000120000-0x0000000000130000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2692-36-0x0000000000120000-0x0000000000130000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2692-35-0x0000000000120000-0x0000000000130000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2692-34-0x0000000000120000-0x0000000000130000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2692-33-0x0000000000120000-0x0000000000130000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2692-32-0x0000000000120000-0x0000000000130000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2844-16-0x0000000000400000-0x0000000002C25000-memory.dmp

    Filesize

    40.1MB

    Download