Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dc964d23cfa17c9…

MALICIOUS

PDF

47.9 KB Created: 2020-10-20 03:19:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-30
MD5: 30561c44501c62ab08a877e2339e927e SHA-1: 07f7453dcc6efb56717ea85e0260437c9f4d6121 SHA-256: 1dc964d23cfa17c9a0c485ff7917e39828adfb11c1b07395773115dea1416db1
202 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://ttraff.link/123?keyword=chordify+premium+cracked+apk In PDF document text
    • https://riwisasivituw.weebly.com/uploads/1/3/1/0/131070703/mudonij-tojoxe-xewej.pdfIn PDF document text
    • https://tavumake.weebly.com/uploads/1/3/2/7/132740551/9531917.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/cfff6.pdfIn PDF document text
    • https://lilawowawumoxo.weebly.com/uploads/1/3/1/4/131453384/tituj-geloka-lalij.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378425/normal_5f8d3f479e889.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369505/normal_5f899485ade97.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/76b63229-b8b8-47fa-b3bd-865c0168a342/43099046219.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/691db48e-ac41-42a1-834a-d777b33e2819/14156737781.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7635dd08-2c03-4df7-9825-b6f2192ea457/zowewidaxezatejakevoselun.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ade3fa3a-f271-4e3d-a10b-e6cf2f7ccaf8/8639432929.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e5f01ee8-a5c2-4cd9-a61b-9ad6d05ff8e3/regazunagidesuza.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a10bbd0b-cf9f-4c21-882b-2585d5379d48/tusejijo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2fe1f122-7fd1-4c64-8cc9-24a440cbd406/75088330198.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/649deda7-7c3a-4aa2-ac71-d9675f0b5ee8/246115458.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/687ce811-014b-4824-a985-22350512dc7d/o_misterio_da_casa_verde.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/2046/3522/files/11468085899.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/6898/3969/files/94105043121.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7415/0809/files/17680424240.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0319/9138/files/dragon_city_mod_apk_unlimited_coins.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/9264/9132/files/labireta.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5f3491e2-74e8-4799-835b-1f14a18ecc41/16105470638.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9665591a-2aac-47fe-855d-5255d4fea4c1/minecraft_15._1_indir_android_oyun_club.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f9eb9d18-50e8-45f4-82dd-8111cbec6f5e/3012697226.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0145b9b7-ce1f-4451-9303-1064a9f206c7/nepajutazobis.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006743.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6743 5256 bytes
SHA-256: eeaec9ea842e0a26e659ab4c0a223ee67d6bdd85250a4a302629c1945c0d548e
font_01_sfnt_off00007907.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7907 10552 bytes
SHA-256: 118f17a63ed54797cf8ec4c77e368651effcec8d01dd03454122c5c79b2265b9
font_02_sfnt_off00009d20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9D20 16092 bytes
SHA-256: e9fe716c2abc985b12a899a49d5539e4e8be1b56d50c083b30290d85a2a7c848