Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9ad159f913ca60a…

MALICIOUS

PDF

42.7 KB Created: 2021-06-03 23:46:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-16
MD5: 84f4d6eb09dfb917f91b79d3868b2dcb SHA-1: 7264339c49879d687113096dd348f4792329f85b SHA-256: e9ad159f913ca60ad1ceb81c5c869be3e7ed0ce6d2bb8674b65037da610a3272
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to 'free followers on TikTok' and includes a link to malicious redirector infrastructure. The embedded URL, https://netcdn.online/app/835599320/how-to-get-free-followers-on-tiktok-without-verification-game-hack, is identified as a known malicious redirector. The document body also contains numerous other URLs that appear to be part of a phishing or scam campaign, likely aiming to deliver a secondary payload or lead users to fraudulent sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9874

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://netcdn.online/app/835599320/how-to-get-free-followers-on-tiktok-without-verification-game-hack In PDF document text
    • http://pustaka.fti.unand.ac.id/repository/freespinandcoin-blogspot-com_GM406889139.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id//repository/free-fire-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id//repository/coin-master-free-spins-only_GM406889139.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/how-to-get-free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/free-roblox-accounts-that-work_GM431946152.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/coin-master-free-spins-android_GM406889139.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/roblox-gang_GM431946152.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id//repository/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/free-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id//repository/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id//repository/free-robux-just-enter-username-and-password_GM431946152.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/best-free-minecraft-texture-packs_GM479516143.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/coin-master-cracked-apk-free-download_GM406889139.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/coin-master-hack-app_GM406889139.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id//repository/100-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/where-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id//repository/free-links-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id//repository/coin-master-free-link-facebook_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00004db5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4DB5 23708 bytes
SHA-256: 7b34a15d0769362a09a37870121e8268da69b0af5339c8979251581a7fd63fcf
font_01_sfnt_off00008391.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8391 18560 bytes
SHA-256: 44e861f884f5b204505c1b7f802bb38ae1f856029c7165a706c64635734545ea

Open this report in the interactive analyzer, or submit your own file for analysis.