Malicious PDF — malware analysis report

Static analysis result for SHA-256 34020e5d6c28e2a5…

MALICIOUS

PDF

34.1 KB Created: 2021-07-05 09:02:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 1bfd26b1d7ccb221d24c7c5a503fbd40 SHA-1: a35aacee76448af65f11ef5403360f43bd9f7f36 SHA-256: 34020e5d6c28e2a519a03310ed97eaef6ebd885995c9c85c319b8d29491d636a
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-g-game-hack PDF link annotation
    • http://www.avorganic.org/uploaded_files/userfiles/files/free-roblox-adopt-me-accounts_GM431946152.pdfIn PDF document text
    • http://www.avorganic.org/uploaded_files/userfiles/files/coin-master-hack-apk-no-fb-login_GM406889139.pdfIn PDF document text
    • http://www.avorganic.org/uploaded_files/userfiles/files/free-robux-real-working_GM431946152.pdfIn PDF document text
    • http://www.avorganic.org/uploaded_files/userfiles/files/roblox-free-robux-easy_GM431946152.pdfIn PDF document text
    • http://www.avorganic.org/uploaded_files/userfiles/files/coin-master-15-free-spin-link-today_GM406889139.pdfIn PDF document text
    • http://www.avorganic.org/uploaded_files/userfiles/files/free-minecraft-printables_GM479516143.pdfIn PDF document text
    • http://www.avorganic.org/uploaded_files/userfiles/files/how-to-play-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • http://www.avorganic.org/uploaded_files/userfiles/files/i-need-more-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.avorganic.org/uploaded_files/userfiles/files/como-hackearle-la-cuenta-a-alguien-en-roblox_GM431946152.pdfIn PDF document text
    • http://www.avorganic.org/uploaded_files/userfiles/files/how-do-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.avorganic.org/uploaded_files/userfiles/files/roblox-promo-codes-free-robux_GM431946152.pdfIn PDF document text
    • http://www.avorganic.org/uploaded_files/userfiles/files/is-there-an-actual-hack-that-work-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.avorganic.org/uploaded_files/userfiles/files/roblox-speed-hacks-that-u-can-type-in-chat_GM431946152.pdfIn PDF document text
    • http://www.avorganic.org/uploaded_files/userfiles/files/coin-master-free-spin-and-coin-link-today_GM406889139.pdfIn PDF document text
    • http://www.avorganic.org/uploaded_files/userfiles/files/show-me-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.avorganic.org/uploaded_files/userfiles/files/what-to-do-if-your-roblox-account-gets-hacked_GM431946152.pdfIn PDF document text
    • http://www.avorganic.org/uploaded_files/userfiles/files/coin-master-hack-online-cheat_GM406889139.pdfIn PDF document text
    • http://www.avorganic.org/uploaded_files/userfiles/files/coin-master-apk_GM406889139.pdfIn PDF document text
    • http://www.avorganic.org/uploaded_files/userfiles/files/free-robux-2021-comxa-dot-com_GM431946152.pdfIn PDF document text
    • http://www.avorganic.org/uploaded_files/userfiles/files/wild-and-free-id-roblox-code_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_off00002f9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F9D 22512 bytes
SHA-256: 108e7ecd0036982311c8c70da262293889b57fdccb422f3e5f9f799da7243895
font_01_sfnt_off000061bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61BF 18484 bytes
SHA-256: e47c5ae33dcf0fc9c24112a84231c70d65c3a439874937d3fe40aa54aa775f9e

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