Malicious PDF — malware analysis report

Static analysis result for SHA-256 0156f86ae3ba262d…

MALICIOUS

PDF

35.0 KB Created: 2021-07-04 12:30:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: a494b4ae1e3407c4ace3cfebc5789fff SHA-1: 20dec03deaa63449c4f649648799d86905768b22 SHA-256: 0156f86ae3ba262d0386420a93be7a7e6719f6305505139b5395ba00d30ba507
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 0.9980

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 http://netcdn.tw/app/431946152/roblox-executor-free-game-hack PDF link annotation
    • http://mtsn-baranti.com/perpus/repository/how-to-make-a-group-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/100-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-robux-websites-that-work_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-how-to-get-free-admin-on-jailbreak_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-do-you-get-a-roblox-account-and-hack-someones_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-robux-coupons_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-get-free-robux-with-no-verification_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/why-does-cheat-engine-not-work-on-roblox_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-become-a-hacker-in-roblox_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-free-spins--coins-2021_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/robux-hacks-that-work-2021_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/everything-on-the-roblox-catalog-free-fast_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-stuff-in-roblox-august-2021_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-robux-images_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-items-in-roblox-pastebin_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-shirts-and-pants-on-roblox_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/dragon-ball-legendayr-powers-roblox-hack_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/counter-blox-roblox-offensive-wall-hack_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-groups-that-give-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-robux-earn_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_002_off00002ff5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2FF5 23052 bytes
SHA-256: 64221418c0203e577df8c5539542b8e764e6784b1c2d9bbe6ef7dc86257de226
font_01_sfnt_off00006419.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6419 18896 bytes
SHA-256: b9fa4116576953c5801b2f22b5c01864cd46e08fd89173683bf0373ba93b2fc0

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