Malicious PDF — malware analysis report

Static analysis result for SHA-256 89378ee0e0a1cbc2…

MALICIOUS

PDF

50.3 KB Created: 2021-06-11 07:25:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: f785699a45a07f2a4dd410e58136e50b SHA-1: d6b08aaa270d79cf7d67c2d1e644cec28b86fe4c SHA-256: 89378ee0e0a1cbc2993aea3a46854d14ab266b5037f8b49777e3f07984f012d8
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 0.9871

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.tw/app/431946152/descargar-roblox-hack-robux-para-android-game-hack PDF link annotation
    • https://fud.iain-surakarta.ac.id/pustaka/repository/http-roblox-hack-top_GM431946152.pdfIn PDF document text
    • https://fud.iain-surakarta.ac.id/pustaka/repository/coin-master-free-spins-link-today-new_GM406889139.pdfIn PDF document text
    • https://fud.iain-surakarta.ac.id/pustaka/repository/optifine-minecraft-pe_GM479516143.pdfIn PDF document text
    • https://fud.iain-surakarta.ac.id/pustaka/repository/how-to-hack-a-roblox-accounts-2021-on-pc_GM431946152.pdfIn PDF document text
    • https://fud.iain-surakarta.ac.id/pustaka/repository/free-robux-generator-2021-no-survey_GM431946152.pdfIn PDF document text
    • https://fud.iain-surakarta.ac.id/pustaka/repository/best-free-minecraft-skins_GM479516143.pdfIn PDF document text
    • https://fud.iain-surakarta.ac.id/pustaka/repository/free-roblox-intros_GM431946152.pdfIn PDF document text
    • https://fud.iain-surakarta.ac.id/pustaka/repository/robux-free-c_GM431946152.pdfIn PDF document text
    • https://fud.iain-surakarta.ac.id/pustaka/repository/how-to-hack-peoples-roblox-accounts_GM431946152.pdfIn PDF document text
    • https://fud.iain-surakarta.ac.id/pustaka/repository/how-to-get-free-robux-without-email_GM431946152.pdfIn PDF document text
    • https://fud.iain-surakarta.ac.id/pustaka/repository/free-download-coin-master_GM406889139.pdfIn PDF document text
    • https://fud.iain-surakarta.ac.id/pustaka/repository/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://fud.iain-surakarta.ac.id/pustaka/repository/free-spin-link-coin-master_GM406889139.pdfIn PDF document text
    • https://fud.iain-surakarta.ac.id/pustaka/repository/how-to-get-free-robux-without-verification_GM431946152.pdfIn PDF document text
    • https://fud.iain-surakarta.ac.id/pustaka/repository/coin-master-hack-ios-12_GM406889139.pdfIn PDF document text
    • https://fud.iain-surakarta.ac.id/pustaka/repository/spin-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • https://fud.iain-surakarta.ac.id/pustaka/repository/coin-master-cards_GM406889139.pdfIn PDF document text
    • https://fud.iain-surakarta.ac.id/pustaka/repository/free-robux-if-u-join-this-group_GM431946152.pdfIn PDF document text
    • https://fud.iain-surakarta.ac.id/pustaka/repository/coin-master-spin-hack-app_GM406889139.pdfIn PDF document text
    • https://fud.iain-surakarta.ac.id/pustaka/repository/huskybuscom-free-robux_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_004_off00005245.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5245 33992 bytes
SHA-256: 78441d8199c5af1377c358704deec35b0412239d7ccd98c63fe83150de4e2174
font_01_sfnt_off00009f9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F9E 19228 bytes
SHA-256: 3b90e299479fef3f1b12582cb02b9eeffdab832ea3520d327dff47c7ac13d51a

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