Malicious PDF — malware analysis report

Static analysis result for SHA-256 886c0c6a222ddcc0…

MALICIOUS

PDF

41.5 KB Created: 2021-05-19 14:11:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 4b7b2808840d201be5c6917c9d5699b3 SHA-1: c63de9252212f45c1652e7a7531f55d640b4e11f SHA-256: 886c0c6a222ddcc0a518aa2eb31ba07b382fb0fd13e9528b13495de9a69e2bbe
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains multiple embedded URLs and heuristics indicate it is designed as a lure for game hacks and generators. The document body and extracted URLs suggest a redirection to sites offering 'free generators' or 'hacks', which is a common tactic for financial scams or malware distribution. The ML classifier strongly supports the malicious verdict.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 5

  • 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.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • 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/1094591345/pokemon-go-gameplay-free-online-game-hack PDF link annotation
    • https://au-ma.com/image/data/files/how-to-hack-people-on-roblox_GM431946152.pdfIn PDF document text
    • https://au-ma.com/image/data/files/master-coin-hack-apk_GM406889139.pdfIn PDF document text
    • https://au-ma.com/image/data/files/free-robux-giveaway-live_GM431946152.pdfIn PDF document text
    • https://au-ma.com/image/data/files/roblox-girl_GM431946152.pdfIn PDF document text
    • https://au-ma.com/image/data/files/no-verification-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://au-ma.com/image/data/files/how-do-we-get-free-robux_GM431946152.pdfIn PDF document text
    • https://au-ma.com/image/data/files/coin-master-free-spin-today-2021_GM406889139.pdfIn PDF document text
    • https://au-ma.com/image/data/files/coin-master-free-coins-and-spins-hack_GM406889139.pdfIn PDF document text
    • https://au-ma.com/image/data/files/free-robux-real_GM431946152.pdfIn PDF document text
    • https://au-ma.com/image/data/files/how-many-free-spin-links-is-there-for-coin-master_GM406889139.pdfIn PDF document text
    • https://au-ma.com/image/data/files/minecraft-redeem-code-free-2021_GM479516143.pdfIn PDF document text
    • https://au-ma.com/image/data/files/how-to-get-free-robux-website_GM431946152.pdfIn PDF document text
    • https://au-ma.com/image/data/files/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • https://au-ma.com/image/data/files/link-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://au-ma.com/image/data/files/minecraft-pe-free-apk_GM479516143.pdfIn PDF document text
    • https://au-ma.com/image/data/files/how-to-get-minecraft-for-free-on-mobile_GM479516143.pdfIn PDF document text
    • https://au-ma.com/image/data/files/free-coins-coin-master-link-today_GM406889139.pdfIn PDF document text
    • https://au-ma.com/image/data/files/free-robux-generator-without-human-verification_GM431946152.pdfIn PDF document text
    • https://au-ma.com/image/data/files/coin-master-daily-free-spins_GM406889139.pdfIn PDF document text
    • https://au-ma.com/image/data/files/roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000047f5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47F5 24148 bytes
SHA-256: 5b8d9485b643d63f0dc93b7295dba5fe27a9eb910f2e5f8b05f22383a92c92f4
font_01_sfnt_off00007eff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EFF 18620 bytes
SHA-256: 9ca9b4abb14479106c9be9d79ad86d75f1114b70f6a618498311aab4f43b518a

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