Analysis

  • max time kernel
    149s
  • max time network
    138s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-08-2024 10:51

General

  • Target

    Insidious.exe

  • Size

    303KB

  • MD5

    73f91b648c6e449c678cc4bcaf217651

  • SHA1

    8cb0cec0e31531b73bc04630c0ef86aec11894e6

  • SHA256

    f2b5cbbdb4beb4ccfe4220af1bc7a1065524ee4dcad89fa180ccd3a4cac0d87a

  • SHA512

    a2ad7c032bb93a9dc32a243cc0febb6fbe4272d44f381f6e9f2be7e94aca30a7b9871e9dd2a67f48b98202351605d81e5416e4c1d76275d590eba575bf8b006f

  • SSDEEP

    6144:TRlT6MDdbICydeBV9suqPmlF62y6bmA1D0Gsp:TRT4uqPmH6Dg1Dmp

Malware Config

Extracted

Family

44caliber

C2

https://discord.com/api/webhooks/1275043194824032316/eqfjpwfw-Aa32DfOOcp2pilYlVMwJCH973ItNa5eap8KHs1eapnkS0U23LDUza9Imjji

Signatures

  • 44Caliber

    An open source infostealer written in C#.

  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Looks up external IP address via web service 2 IoCs

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

  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Insidious.exe
    "C:\Users\Admin\AppData\Local\Temp\Insidious.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:2928
  • C:\Windows\system32\taskmgr.exe
    "C:\Windows\system32\taskmgr.exe" /4
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:4560

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2928-0-0x00007FF973F33000-0x00007FF973F35000-memory.dmp

    Filesize

    8KB

  • memory/2928-1-0x00000208324A0000-0x00000208324F2000-memory.dmp

    Filesize

    328KB

  • memory/2928-27-0x00007FF973F30000-0x00007FF9749F1000-memory.dmp

    Filesize

    10.8MB

  • memory/2928-32-0x00007FF973F30000-0x00007FF9749F1000-memory.dmp

    Filesize

    10.8MB

  • memory/4560-33-0x00000261CB5C0000-0x00000261CB5C1000-memory.dmp

    Filesize

    4KB

  • memory/4560-35-0x00000261CB5C0000-0x00000261CB5C1000-memory.dmp

    Filesize

    4KB

  • memory/4560-34-0x00000261CB5C0000-0x00000261CB5C1000-memory.dmp

    Filesize

    4KB

  • memory/4560-39-0x00000261CB5C0000-0x00000261CB5C1000-memory.dmp

    Filesize

    4KB

  • memory/4560-45-0x00000261CB5C0000-0x00000261CB5C1000-memory.dmp

    Filesize

    4KB

  • memory/4560-44-0x00000261CB5C0000-0x00000261CB5C1000-memory.dmp

    Filesize

    4KB

  • memory/4560-42-0x00000261CB5C0000-0x00000261CB5C1000-memory.dmp

    Filesize

    4KB

  • memory/4560-43-0x00000261CB5C0000-0x00000261CB5C1000-memory.dmp

    Filesize

    4KB

  • memory/4560-41-0x00000261CB5C0000-0x00000261CB5C1000-memory.dmp

    Filesize

    4KB

  • memory/4560-40-0x00000261CB5C0000-0x00000261CB5C1000-memory.dmp

    Filesize

    4KB