Malicious PDF — malware analysis report

Static analysis result for SHA-256 68ec1d7c57594d8a…

MALICIOUS

PDF

58.7 KB Created: 2020-08-19 03:57:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c0e6efa737b6ea6fd997057ab01a14c2 SHA-1: 8e18525659432a3503816b29357dd821e7375c16 SHA-256: 68ec1d7c57594d8a8ab280442f9eecaed22b2f15b2dd2fa65f03debce7858dfb
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded links that point to a malicious redirector, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text suggesting it is a worksheet, likely a lure for users to click the malicious link. The ML classifier also strongly indicated maliciousness.

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.cc/pify?keyword=multiple+alleles+blood+types+worksheet+answers In PDF document text
    • http://files.petalumaffa.com/uploads/1/3/1/8/131857983/nodevebigateb.pdfIn PDF document text
    • http://papop.brendatobyphotography.com/uploads/1/3/1/8/131858156/favezegurip.pdfIn PDF document text
    • http://nativageg.ayrtherapyandconsultancy.com/uploads/1/3/1/8/131871390/gidurozasosuboduxo.pdfIn PDF document text
    • http://files.swmichiganbuttery.com/uploads/1/3/1/1/131164504/diguwefoliduju_sijeg_zebizelata_gobufufo.pdfIn PDF document text
    • http://tuvutogal.milanrotaryclub.com/uploads/1/3/0/7/130775189/2289788.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/1/0436/6244/2646/files/botizutukubudag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3174/9031/files/tovoxuzanaketagum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8954/2809/files/20484997201.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0667/1517/files/94155791913.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7992/4902/files/41858290406.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5313/7576/files/95263914944.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/4274895189.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6845/6086/files/32722823560.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0417/4233/files/lavupaxaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7313/5011/files/fufafemojuke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2638/9912/files/jowalagetokag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/40169505762.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009c1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C1D 2828 bytes
SHA-256: b7f317aa0f29cd34df008dc84d8f376d2685882a57a4a5cd0d86477d0adf885a
font_01_sfnt_off0000a618.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA618 5448 bytes
SHA-256: 9466fccfb3ea6a771415ddabfb35b3252915c002ad57e6c2b152e985045e6f09
font_02_sfnt_off0000b8a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB8A2 9940 bytes
SHA-256: f21e34a073797d994e2cd5b22718a4533e00a2f1050133fbe6eb79e98968cb35

Open this report in the interactive analyzer, or submit your own file for analysis.