Malicious PDF — malware analysis report

Static analysis result for SHA-256 01f4464f61b629e8…

MALICIOUS

PDF

43.4 KB Created: 2021-06-03 05:33:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: cbd1c0dc7dbb591b5749accd28732821 SHA-1: 6ab38eae36272618d238e2bcbac71d1d2dd5d2c1 SHA-256: 01f4464f61b629e87c2546b94897d235a8c61539ae7620ca40556c1c74dd1ede
200 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document employs a lure related to free Robux and game hacks, impersonating Facebook to trick users into clicking a link. The primary link leads to a known malicious redirector infrastructure, suggesting the document's purpose is to facilitate further malicious activity, likely credential harvesting or malware delivery. No scripts were extracted, but the embedded URLs and the nature of the lure strongly indicate a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 5

  • 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.
  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://netcdn.online/app/431946152/free-robux-giveaway-live-game-hack.
  • 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/431946152/free-robux-giveaway-live-game-hack In PDF document text
    • http://lib.akpnbahtera.ac.id/repository/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/minecraft-bedrock-hacks_GM479516143.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/coin-master-free-gift-link-2021_GM406889139.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/toolbox-apk_GM479516143.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/roblox-gift-card-online-free_GM431946152.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/roblox-report-hacker_GM431946152.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/how-to-get-roblox-premium-for-free-2021_GM431946152.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/free-100-robux_GM431946152.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/robux-without-verification_GM431946152.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/free-robux-hacks-no-verification_GM431946152.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/how-to-get-free-robux-without-downloading-apps-2021_GM431946152.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/robux-gratis_GM431946152.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/robux-boost_GM431946152.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/100-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/free-coin-master-spins-daily_GM406889139.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/can-i-play-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/fan-page-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://192.168.0.99/%20%3Cp%3E%3Cp%3Ecreate%20some%20WOW%20with%20kIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00004f8b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4F8B 24424 bytes
SHA-256: 672376d530bd318c373d4822f84d537d6e1682b54c862fe8be9ff0945e2fce64
font_01_sfnt_off00008782.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8782 18052 bytes
SHA-256: 4a6d571dda87e07fba61639e5ff72702a34901c34828e253d4c08691ca04bba5

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