Malicious PDF — malware analysis report

Static analysis result for SHA-256 42f5c6666144e16b…

MALICIOUS

PDF

44.6 KB Created: 2020-08-02 10:44:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2339d6b60ba176f661b21e18d01a7ac0 SHA-1: e43a10bbbde5d7c8103bbd910d3db9addeb51bea SHA-256: 42f5c6666144e16b3349977b576a52cb429696f08a4a5b0d2387d3aa0f0c6efb
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous embedded links, including one pointing to a known malicious redirector at 'https://ttraff.com/pify?keyword=amsterdam+imagine+dragons+lyrics'. The document body, though heavily obfuscated, also contains this URL. The presence of a link farm and a malicious redirector strongly suggests an attempt to drive traffic to malicious sites, likely for phishing or malware distribution.

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=amsterdam+imagine+dragons+lyrics In PDF document text
    • http://files.woodstovemulledwine.com/uploads/1/3/1/6/131606758/2006387.pdfIn PDF document text
    • http://files.brandysmassagevictoria.com/uploads/1/3/0/8/130874614/4646976.pdfIn PDF document text
    • http://files.bestpickeddiets.com/uploads/1/3/2/6/132680796/novejib_bijexavu_guneted.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/1/0437/3191/0821/files/vofuwosukolumawasuguwi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kamunikizesow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2388/2664/files/wovepovasunupuzasobaje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4018/7303/files/lonuxetumovezatokejevirax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2255/7095/files/somamigiteminu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4444/6118/files/gitovubarumo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8260/3927/files/fagaxajewulitezedizim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xoperesotojazi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6784/2465/files/79921333735.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3146/1016/files/star_trek_legacy_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1480/6937/files/79414998331.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 7

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_off000070c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70C1 5348 bytes
SHA-256: 5531bdb56afdf834e1b8b7c50dcaf444e4c2cbd1c8db5569ab073115806fc5c3
font_01_sfnt_off000082e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82E1 10308 bytes
SHA-256: 352852cab14a8e4fe2f0a739e854a72ab40f185fba46cbaef1df18dd886ad5e4

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