Malicious PDF — malware analysis report

Static analysis result for SHA-256 a5fba75124ec285c…

MALICIOUS

PDF

45.8 KB Created: 2021-05-10 14:15:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 2ea60777ecd1cfb6858212e3fc8d488d SHA-1: 11e1f2e5e16a16e2746b19c6aecaee32327eeb2a SHA-256: a5fba75124ec285c3de17212b5e1a520f7973e36c5176054c46e4f57b71e1718
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

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 0.9432

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-hacks-for-free-spins-game-hack PDF link annotation
    • https://www.alarqam.ae/userfiles/files/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/minecraft-com-free_GM479516143.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/minecraft-games-free-download_GM479516143.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/minecraft-server-hacks_GM479516143.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/roblox-studio-free-robux_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/coin-master-money-hack_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/robux-free-online_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/how-to-get-free-cards-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/wwwhaktutsin-2021-08-coinmasterfreespinandcoinlinkhtml-m-1_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/how-do-you-get-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/minecraft-xbox-360-free-download-code_GM479516143.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/hack-coin-master-game-apk-download_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/coin-master-hack-without-verification-code_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/how-do-you-get-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/coin-master-daily-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/free-spins-and-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/free-coins-and-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/coin-master-free-gifts_GM406889139.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004a43.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A43 25232 bytes
SHA-256: 9bc998dfefae21ff762d215157f2f7996fe26ace922ed955733f7839a0d83009
font_01_sfnt_off0000834e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x834E 2880 bytes
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
font_02_sfnt_off00008d39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D39 19384 bytes
SHA-256: 5d280838f931ae93d0acd2353bfabf50d4ceb1a95497f5c589fffd97c4a747fc

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