Malicious PDF — malware analysis report

Static analysis result for SHA-256 38546e018eb42d56…

MALICIOUS

PDF

34.0 KB Created: 2021-07-06 14:45:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 2dfd50cfc44d067f3dbde4b748404464 SHA-1: f3d2cf0203b88462d75c98d7d1ec25b83c4ce4ec SHA-256: 38546e018eb42d56c479dbe193b96478eb223b3239016f1504a3542e1ca77cb1
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs, with a primary focus on 'game hack' and 'generator' lures for popular games like Coin Master and Roblox. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' strongly indicates that the document's purpose is to redirect users to potentially malicious sites. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lures suggest a phishing or malware distribution attempt, likely initiated via a spearphishing attachment.

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/406889139/village-4-coin-master-game-hack PDF link annotation
    • http://slims.abulyatama.ac.id/repository/minecraft-free-ios_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-spins-generated-from-coin-master_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-coin-master-spin-generator_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/coin-master-gold-cards-hack_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/how-do-you-earn-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/coin-master-mod-version-free-download-34-4_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/how-to-get-minecraft-for-free-on-laptop_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/www-free-robux-today_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/best-roblox-shirt-software-for-free_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/roblox-lua-script-gear-giver-hack_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/generetaror-roblox-free_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/roblox-com-www_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/coin-master-free-daily-spins-link_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/how-do-you-hack-roblox_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/free-robux-quiz_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/natural-disasters-hack-roblox_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/robux-xyz_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/giftrobux-com-generator_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
font_00_sfnt_off00002f0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F0E 22888 bytes
SHA-256: 1e29ea3770a0f0bae7cc884da9ba642acda56345802df89cf23ae45a4d5eaac2
font_01_sfnt_off0000628e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x628E 18104 bytes
SHA-256: 4e3e26e318f000d1743168d79ceffe3874b2a3aef5316a31623a9354875cbc98

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