Malicious PDF — malware analysis report

Static analysis result for SHA-256 e87b430323db89f7…

MALICIOUS

PDF

35.1 KB Created: 2021-06-26 03:30:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: f55aae8a62a657fa36256d6a42c1bcfc SHA-1: a4d886bc8b93be7bbc9b20864a335bc60f9dfd04 SHA-256: e87b430323db89f7758b7752dbf9b74baad87424e28b8762a7893ebb90b968c1
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links, including one identified as a malicious redirector. The primary lure, 'Roblox Free Hoodie', directs users to 'http://netcdn.co/app/431946152/roblox-free-hoodie-game-hack', which is associated with game hack and generator scams. The document's structure and embedded URLs suggest an attempt to trick users into downloading potentially unwanted or malicious software.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/roblox-free-hoodie-game-hack In PDF document text
    • https://trustindoutama.com/assets/CKImages/files/coin-master-online-hack-download_GM406889139.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/how-to-get-minecraft-for-free-on-nintendo-switch_GM479516143.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/blox-best-robux_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/free-robux-no-verification-needed_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/minecraft-bedrock-edition-hacks_GM479516143.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/roblox-general-cheat-script_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/roblox-redeem-card-codes-free_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/get-free-cards-coin-master_GM406889139.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/free-roblox-obc-generator_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/master-free-spin_GM406889139.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/free-robux-real-working_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/free-shields-coin-master_GM406889139.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/free-robux-no-gift-card_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/earn-robux-today-free-watching-ads_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/roblox-clubs-that-give-free-robux_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/roblox-hair-for-free_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/how-to-connect-to-xo-s-hack-roblox-prison-life_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/dragon-ball-flaming-path-hack-roblox_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/roblox-prison-life-v2-02-hack_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/hack-avatar_GM431946152.pdfIn 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
font_00_sfnt_off0000308d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x308D 23148 bytes
SHA-256: 7d3e2443043156096cf290332d13c154d7c093de15bf81cb6baef3e5cd5c77b5
font_01_sfnt_off000064b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64B1 18944 bytes
SHA-256: 8bd20f45741a2c3b725c22fd27327975979a607624714c2e4363fdb2cea27adc

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