Overview

overview

10

Static

static

3

Downloads.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    126s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-06-2024 11:04

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General

  • Target

    Downloads.exe

  • Size

    338KB

  • MD5

    188c61866c5532a2051d817cbddca373

  • SHA1

    82611aa1b9f362b27e33577624301b2776116f38

  • SHA256

    6939d60cb24e0af5ed2397c2d44a99759771b164de0e82db9cd7605129e09077

  • SHA512

    ceffa5f94f936d6d6562fcc32c6f90617a4a76abe5cb001c025f1af349d844ec3a9b77e8c4e0e33158c415c0d14a3fea9c4d99fe126ae153c421a658bf50761b

  • SSDEEP

    6144:Ka4InuJg58BkgqPoDH49n8Bb/cQ/2WN99TclWQpeBOPiHlIPtaIBYJ3R6DPq2C2+:Kat0EAH49n8BL2WNO8DlIlaRJ3wf5MH

Score
10/10
44caliberspywarestealer

Malware Config

Extracted

Family

44caliber

C2

https://discord.com/api/webhooks/1253302699978526772/b5mqXVOEs47XQy9dHee2Po12VotJwgdPtLauhKlKoyBH-xF42vUZ2Glc0N58n1pvAEdH

Signatures

  • 44Caliber

    An open source infostealer written in C#.

    stealer44caliber
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

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

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

  • Drops file in Program Files directory 6 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • 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 behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Downloads.exe
    "C:\Users\Admin\AppData\Local\Temp\Downloads.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:3548
    • C:\Program Files (x86)\sigma\Insidious.exe
      "C:\Program Files (x86)\sigma\Insidious.exe" oxy_installer.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2268
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4296,i,13879737908471496610,15335851594401413307,262144 --variations-seed-version --mojo-platform-channel-handle=4312 /prefetch:8
    1⤵
      PID:4856
    • C:\Windows\system32\taskmgr.exe
      "C:\Windows\system32\taskmgr.exe" /0
      1⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:3112

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Program Files (x86)\sigma\Insidious.exe
      Filesize

      303KB

      MD5

      eefb066dcbb1ae4273c3834f74881a25

      SHA1

      013657673cb6fbdc4a04db2a4d01332d9ec37363

      SHA256

      9a23c010ab4bdd266a109740796baecc5b4eb583c1fe8d94b53961a029ca7cc2

      SHA512

      8d5eab85b0a56351bfc56a4940c1097bc3abb93e003135cdacc3e4cbf5b6a464bb3f46750c1466f1ddcffd265f52abf74951eda632d7b31dbd0b7e38c0d99741

      Download Submit

    • memory/2268-14-0x00007FF842863000-0x00007FF842865000-memory.dmp

      Filesize

      8KB

      Download

    • memory/2268-15-0x0000022B2D780000-0x0000022B2D7D2000-memory.dmp

      Filesize

      328KB

      Download

    • memory/2268-42-0x00007FF842860000-0x00007FF843321000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/2268-43-0x00007FF842860000-0x00007FF843321000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/3112-44-0x0000026563F50000-0x0000026563F51000-memory.dmp

      Filesize

      4KB

      Download

    • memory/3112-46-0x0000026563F50000-0x0000026563F51000-memory.dmp

      Filesize

      4KB

      Download

    • memory/3112-45-0x0000026563F50000-0x0000026563F51000-memory.dmp

      Filesize

      4KB

      Download

    • memory/3112-51-0x0000026563F50000-0x0000026563F51000-memory.dmp

      Filesize

      4KB

      Download

    • memory/3112-56-0x0000026563F50000-0x0000026563F51000-memory.dmp

      Filesize

      4KB

      Download

    • memory/3112-55-0x0000026563F50000-0x0000026563F51000-memory.dmp

      Filesize

      4KB

      Download

    • memory/3112-54-0x0000026563F50000-0x0000026563F51000-memory.dmp

      Filesize

      4KB

      Download

    • memory/3112-53-0x0000026563F50000-0x0000026563F51000-memory.dmp

      Filesize

      4KB

      Download

    • memory/3112-52-0x0000026563F50000-0x0000026563F51000-memory.dmp

      Filesize

      4KB

      Download

    • memory/3112-50-0x0000026563F50000-0x0000026563F51000-memory.dmp

      Filesize

      4KB

      Download