Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a06279cd6963095…

MALICIOUS

PDF

43.5 KB Created: 2021-05-14 02:23:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: ebd33e1ede811b95649f947b813036c4 SHA-1: ab0cf7f25194ee9c9b9a5113d5ff6109a5236e4c SHA-256: 8a06279cd69630954e537f0ad21e4f5b844ba3969f65debeb038f1828966742c
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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.xyz/app/406889139/coin-master-free-spins-11-01-2021-game-hack PDF link annotation
    • https://www.liputanbali.com/assets/CKImages/files/roblox-points_GM431946152.pdfIn PDF document text
    • https://www.liputanbali.com/assets/CKImages/files/wurst-hacks_GM479516143.pdfIn PDF document text
    • https://www.liputanbali.com/assets/CKImages/files/wurst-115_GM479516143.pdfIn PDF document text
    • https://www.liputanbali.com/assets/CKImages/files/is-minecraft-vr-free_GM479516143.pdfIn PDF document text
    • https://www.liputanbali.com/assets/CKImages/files/free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://www.liputanbali.com/assets/CKImages/files/how-to-block-someone-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.liputanbali.com/assets/CKImages/files/claim-free-robux-button_GM431946152.pdfIn PDF document text
    • https://www.liputanbali.com/assets/CKImages/files/who-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.liputanbali.com/assets/CKImages/files/coin-master-free-food_GM406889139.pdfIn PDF document text
    • https://www.liputanbali.com/assets/CKImages/files/how-do-you-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • https://www.liputanbali.com/assets/CKImages/files/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
    • https://www.liputanbali.com/assets/CKImages/files/free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.liputanbali.com/assets/CKImages/files/roblox-hack-site_GM431946152.pdfIn PDF document text
    • https://www.liputanbali.com/assets/CKImages/files/coin-master-coins_GM406889139.pdfIn PDF document text
    • https://www.liputanbali.com/assets/CKImages/files/free-robux-legit_GM431946152.pdfIn PDF document text
    • https://www.liputanbali.com/assets/CKImages/files/coin-master-twitter-free-spins_GM406889139.pdfIn PDF document text
    • https://www.liputanbali.com/assets/CKImages/files/how-to-get-roebucks_GM431946152.pdfIn PDF document text
    • https://www.liputanbali.com/assets/CKImages/files/coin-master-daily-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://www.liputanbali.com/assets/CKImages/files/coin-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • https://www.liputanbali.com/assets/CKImages/files/free-robux-co_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
stream_003_off00004b32.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B32 25832 bytes
SHA-256: 7b2c2fb45ee501ddd4f6a8ed0b78f2532476e827d85fb704d9187e4525f89c93
font_01_sfnt_off000087b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87B4 18288 bytes
SHA-256: 24895b65f98328fb27e7c69f6686c9deb14e0c1b0b62a883e5ab50589681f060

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