Malicious PDF — malware analysis report

Static analysis result for SHA-256 1fc1c006d6a07025…

MALICIOUS

PDF

63.7 KB Created: 2020-08-01 08:44:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d94e8a9b86a4b3f0c5af08fec659c39d SHA-1: e0b7c7f8a8003d74fee8232bed02ff12fa05cd17 SHA-256: 1fc1c006d6a070253a4c5215b98705b91d69d527ce514aae247dbf7f64eee28c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF was flagged as malicious by a machine learning classifier and contains a large number of embedded links, with one pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the string 'https://ttraff.com/pify?keyword=ruby+bracelet+gungeon', which is also listed as a malicious URL. This suggests the primary purpose is to lure users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • 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.com/pify?keyword=ruby+bracelet+gungeon In PDF document text
    • http://files.budavet.net/uploads/1/3/2/8/132814929/retixekugitimogeloso.pdfIn PDF document text
    • http://files.bdw-binka.com/uploads/1/3/0/7/130776346/fesuvusomataga-sogosupa-tarozomimakiwes.pdfIn PDF document text
    • http://files.ancestorsfromvoss.com/uploads/1/3/0/8/130873715/7851958.pdfIn PDF document text
    • http://files.mandiecline.com/uploads/1/3/1/3/131379591/mopobame.pdfIn PDF document text
    • http://files.stoneydarkstone.com/uploads/1/3/1/1/131164440/waves.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3325/6345/files/lilejamawuxutixurov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2484/9815/files/bageburofipojepobuxirab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7857/3464/files/99761113428.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9846/4661/files/zuruxuvezedokar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8668/3037/files/bukigimefosavuge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4414/3253/files/tuvolagusigometurefevi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9255/7467/files/kufujaxaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8258/0130/files/69466444879.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3078/8758/files/xaludazifokavipeke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1810/0637/files/27456342775.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5601/3205/files/tasirisaxagopu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8184/3353/files/47313309269.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bd92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD92 5036 bytes
SHA-256: ad1f58fe692bd22114d1f588f8c9ca5a6a7e36fa5808dae211a6037bd5a56960
font_01_sfnt_off0000ced5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCED5 10324 bytes
SHA-256: a7f5962f91b5ad119e1f144b8ca58940ef693c71f7c29146077a820b061fc7dd

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