Overview

overview

10

Static

static

3

0fcd127ebd...0N.exe

windows7-x64

10

0fcd127ebd...0N.exe

windows10-2004-x64

10

Resubmissions

13-09-2024 08:50

240913-krlpravbkn 10

12-09-2024 22:11

240912-14fl9syckf 10

Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    12-09-2024 22:11

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General

  • Target

    0fcd127ebda0d435dda364e977a26120N.exe

  • Size

    239KB

  • MD5

    0fcd127ebda0d435dda364e977a26120

  • SHA1

    37bbb15e2fe577db5023729e15924a61f30f63d7

  • SHA256

    63296be0fc8cedc36f814d05171e0cddf9186afa45ead6ec8632b7cbe4b06ccc

  • SHA512

    6afe29ec24c7e0ed32cb7515fd0db80bc63b0acdefa7cda0795636ac447792985e539986d932d3373e2ad765ae9edb47e1448b1d61806b116d75598b62b9f99c

  • SSDEEP

    3072:4Sa80fS61LJhEirDAo8IQAmiT1norJz6d4kkCbFCWs/x+/Q:+fS61LJhEE5QA5iJa4E/Q

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
  • 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
  • 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 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0fcd127ebda0d435dda364e977a26120N.exe
    "C:\Users\Admin\AppData\Local\Temp\0fcd127ebda0d435dda364e977a26120N.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2004
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\iwqaepsy\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3040
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\euqfasqy.exe" C:\Windows\SysWOW64\iwqaepsy\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2280
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create iwqaepsy binPath= "C:\Windows\SysWOW64\iwqaepsy\euqfasqy.exe /d\"C:\Users\Admin\AppData\Local\Temp\0fcd127ebda0d435dda364e977a26120N.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2208
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description iwqaepsy "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2728
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start iwqaepsy
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2892
    • 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:2152
  • C:\Windows\SysWOW64\iwqaepsy\euqfasqy.exe
    C:\Windows\SysWOW64\iwqaepsy\euqfasqy.exe /d"C:\Users\Admin\AppData\Local\Temp\0fcd127ebda0d435dda364e977a26120N.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:864
    • 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: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

Replay Monitor

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Downloads

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

    13.0MB

    MD5

    876d844efc26542d77ee7455bca3bd99

    SHA1

    4c45dbeb2817e031f4373fb4732c7034af103cc7

    SHA256

    13d2aafff83ebfd7adfa93be493d51023843a75a1882a4b672532be419921996

    SHA512

    847b3a7d274382ced9ac693f4ebd235c33b816b48d4459455fe517afb8338341b969ec1f84b5cd0d8615e05979f0b2e12c68b6742d2fda9b2149b534bd4777b6

    Download Submit

  • memory/864-13-0x0000000000400000-0x0000000002B5C000-memory.dmp

    Filesize

    39.4MB

    Download

  • memory/2004-15-0x00000000001B0000-0x00000000001C3000-memory.dmp

    Filesize

    76KB

    Download

  • memory/2004-2-0x00000000001B0000-0x00000000001C3000-memory.dmp

    Filesize

    76KB

    Download

  • memory/2004-3-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

    Download

  • memory/2004-1-0x00000000002B0000-0x00000000003B0000-memory.dmp

    Filesize

    1024KB

    Download

  • memory/2004-14-0x0000000000400000-0x0000000002B5C000-memory.dmp

    Filesize

    39.4MB

    Download

  • memory/2004-16-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

    Download

  • memory/2848-55-0x00000000000D0000-0x00000000000D7000-memory.dmp

    Filesize

    28KB

    Download

  • memory/2848-45-0x00000000000B0000-0x00000000000C0000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2848-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2848-17-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

    Download

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

    Filesize

    84KB

    Download

  • memory/2848-20-0x0000000001A60000-0x0000000001C6F000-memory.dmp

    Filesize

    2.1MB

    Download

  • memory/2848-23-0x0000000001A60000-0x0000000001C6F000-memory.dmp

    Filesize

    2.1MB

    Download

  • memory/2848-27-0x00000000000B0000-0x00000000000C0000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2848-24-0x00000000000A0000-0x00000000000A6000-memory.dmp

    Filesize

    24KB

    Download

  • memory/2848-50-0x00000000000C0000-0x00000000000C5000-memory.dmp

    Filesize

    20KB

    Download

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

    Filesize

    84KB

    Download

  • memory/2848-54-0x0000000005440000-0x000000000584B000-memory.dmp

    Filesize

    4.0MB

    Download

  • memory/2848-52-0x0000000005440000-0x000000000584B000-memory.dmp

    Filesize

    4.0MB

    Download

  • memory/2848-47-0x00000000000C0000-0x00000000000C5000-memory.dmp

    Filesize

    20KB

    Download

  • memory/2848-46-0x00000000000B0000-0x00000000000C0000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2848-8-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

    Download

  • memory/2848-44-0x00000000000B0000-0x00000000000C0000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2848-43-0x00000000000B0000-0x00000000000C0000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2848-42-0x00000000000B0000-0x00000000000C0000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2848-41-0x00000000000B0000-0x00000000000C0000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2848-40-0x00000000000B0000-0x00000000000C0000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2848-39-0x00000000000B0000-0x00000000000C0000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2848-38-0x00000000000B0000-0x00000000000C0000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2848-37-0x00000000000B0000-0x00000000000C0000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2848-36-0x00000000000B0000-0x00000000000C0000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2848-35-0x00000000000B0000-0x00000000000C0000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2848-34-0x00000000000B0000-0x00000000000C0000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2848-33-0x00000000000B0000-0x00000000000C0000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2848-32-0x00000000000B0000-0x00000000000C0000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2848-31-0x00000000000B0000-0x00000000000C0000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2848-30-0x00000000000B0000-0x00000000000C0000-memory.dmp

    Filesize

    64KB

    Download