Overview

overview

10

Static

static

3

930b96bbec...ce.exe

windows7-x64

10

930b96bbec...ce.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    156s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    14-10-2024 01:39

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General

  • Target

    930b96bbec596e80fd6b6e4a37c34000113e1affb5f1aadbce2049f5800a6fce.exe

  • Size

    238KB

  • MD5

    7ea98bd7f6a69b385310f5eaa86b6828

  • SHA1

    ab3ee16a99f901336fa6221f4fdc84e562154841

  • SHA256

    930b96bbec596e80fd6b6e4a37c34000113e1affb5f1aadbce2049f5800a6fce

  • SHA512

    25f618ee87b577eec384fd49c40fe00dfa4caaf50b36227431ba838dd461024256a578857026d0942db495a6894b51a55d84190cbe78ab55f46c3c6471a0eb09

  • SSDEEP

    3072:vRSPDpmSd0310NWYOTLGp+6vDYCm0aW9s/aL/MOvobE80Ogdh1ei4T6Ql:vyDpmSK3104/LS+alDz/MRP0Vdh1tQ

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\930b96bbec596e80fd6b6e4a37c34000113e1affb5f1aadbce2049f5800a6fce.exe
    "C:\Users\Admin\AppData\Local\Temp\930b96bbec596e80fd6b6e4a37c34000113e1affb5f1aadbce2049f5800a6fce.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1612
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\aazowqvt\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2804
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\mvbmkzr.exe" C:\Windows\SysWOW64\aazowqvt\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2876
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create aazowqvt binPath= "C:\Windows\SysWOW64\aazowqvt\mvbmkzr.exe /d\"C:\Users\Admin\AppData\Local\Temp\930b96bbec596e80fd6b6e4a37c34000113e1affb5f1aadbce2049f5800a6fce.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:3052
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description aazowqvt "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2800
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start aazowqvt
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:1676
    • 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:2956
  • C:\Windows\SysWOW64\aazowqvt\mvbmkzr.exe
    C:\Windows\SysWOW64\aazowqvt\mvbmkzr.exe /d"C:\Users\Admin\AppData\Local\Temp\930b96bbec596e80fd6b6e4a37c34000113e1affb5f1aadbce2049f5800a6fce.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1016
    • 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:2588

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\mvbmkzr.exe
    Filesize

    11.3MB

    MD5

    033abf163b97717df1568481e54eb984

    SHA1

    c3a6c0a008af7af67a104efceef749f528b0cd64

    SHA256

    7f024a413a6cfa403964c979ac02ed1454de9657bca51bebe18a453a62d8f0c2

    SHA512

    b5f0de8e658b9c77d299afcd075b63545d0dbe31b78907ce05861aac46a5ab11d1be7fe5de6c792c44edc86854b419752749ad60771e6a4792c18e995bdd901b

    Download Submit

  • memory/1016-15-0x0000000000400000-0x0000000000443000-memory.dmp

    Filesize

    268KB

    Download

  • memory/1612-2-0x0000000000220000-0x0000000000233000-memory.dmp

    Filesize

    76KB

    Download

  • memory/1612-3-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

    Download

  • memory/1612-8-0x0000000000220000-0x0000000000233000-memory.dmp

    Filesize

    76KB

    Download

  • memory/1612-9-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

    Download

  • memory/1612-7-0x0000000000400000-0x0000000000443000-memory.dmp

    Filesize

    268KB

    Download

  • memory/1612-1-0x0000000000550000-0x0000000000650000-memory.dmp

    Filesize

    1024KB

    Download

  • memory/2588-32-0x00000000001B0000-0x00000000001C0000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2588-35-0x00000000001B0000-0x00000000001C0000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2588-14-0x0000000000100000-0x0000000000115000-memory.dmp

    Filesize

    84KB

    Download

  • memory/2588-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2588-11-0x0000000000100000-0x0000000000115000-memory.dmp

    Filesize

    84KB

    Download

  • memory/2588-18-0x0000000000100000-0x0000000000115000-memory.dmp

    Filesize

    84KB

    Download

  • memory/2588-20-0x00000000019D0000-0x0000000001BDF000-memory.dmp

    Filesize

    2.1MB

    Download

  • memory/2588-36-0x00000000001B0000-0x00000000001C0000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2588-24-0x0000000000190000-0x0000000000196000-memory.dmp

    Filesize

    24KB

    Download

  • memory/2588-27-0x00000000001B0000-0x00000000001C0000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2588-30-0x00000000001B0000-0x00000000001C0000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2588-31-0x00000000001B0000-0x00000000001C0000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2588-16-0x0000000000100000-0x0000000000115000-memory.dmp

    Filesize

    84KB

    Download

  • memory/2588-33-0x00000000001B0000-0x00000000001C0000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2588-34-0x00000000001B0000-0x00000000001C0000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2588-17-0x0000000000100000-0x0000000000115000-memory.dmp

    Filesize

    84KB

    Download

  • memory/2588-23-0x00000000019D0000-0x0000000001BDF000-memory.dmp

    Filesize

    2.1MB

    Download

  • memory/2588-51-0x0000000005590000-0x000000000599B000-memory.dmp

    Filesize

    4.0MB

    Download

  • memory/2588-54-0x0000000005590000-0x000000000599B000-memory.dmp

    Filesize

    4.0MB

    Download

  • memory/2588-37-0x00000000001B0000-0x00000000001C0000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2588-38-0x00000000001B0000-0x00000000001C0000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2588-55-0x00000000001F0000-0x00000000001F7000-memory.dmp

    Filesize

    28KB

    Download

  • memory/2588-39-0x00000000001B0000-0x00000000001C0000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2588-40-0x00000000001B0000-0x00000000001C0000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2588-41-0x00000000001B0000-0x00000000001C0000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2588-42-0x00000000001B0000-0x00000000001C0000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2588-43-0x00000000001B0000-0x00000000001C0000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2588-44-0x00000000001B0000-0x00000000001C0000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2588-45-0x00000000001B0000-0x00000000001C0000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2588-46-0x00000000001B0000-0x00000000001C0000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2588-47-0x00000000001C0000-0x00000000001C5000-memory.dmp

    Filesize

    20KB

    Download

  • memory/2588-50-0x00000000001C0000-0x00000000001C5000-memory.dmp

    Filesize

    20KB

    Download