Malicious PDF — malware analysis report

Static analysis result for SHA-256 5127f88b4602de27…

MALICIOUS

PDF

51.7 KB Created: 2020-08-01 02:25:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: eaae1ddb0e2d083ee1f7a655975a8fde SHA-1: 61adb229ee438fc7d544db41d5ed7969fc0b6d80 SHA-256: 5127f88b4602de27f37efc0bdf716b6967d8634c3b8850f3eb24d886baa4f33f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.cc'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on Shopify, suggesting an attempt to manipulate search engine results or distribute malicious content. The ML classifier also strongly flagged this PDF as malicious. The document body itself is heavily obfuscated and appears to contain the malicious URL.

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=sort+dataframe+r In PDF document text
    • http://files.ebartists.com/uploads/1/3/1/6/131636988/9673319.pdfIn PDF document text
    • http://files.mdmaternityaccess.org/uploads/1/3/0/9/130969129/6a994.pdfIn PDF document text
    • http://files.sttimothysbishop.com/uploads/1/3/0/7/130775784/xegolenetiba.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/1/0431/3966/1981/files/botosopebikozari.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8493/0462/files/jofodifukafuxewamazitarel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7070/8125/files/us_open_tennis_2020_women_s_draw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9110/7752/files/jebomuziwukobajukenobo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8212/1377/files/19007462397.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1812/5465/files/sabigilibaganevufura.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8330/8955/files/66130662272.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1540/4702/files/39704525200.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8664/2336/files/95781605830.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6710/5687/files/xifeborenajawobolobad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1465/1038/files/mefanep.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 3

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_off0000833d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x833D 4944 bytes
SHA-256: 61a0a24ea948f37351c27cf0ffadd8cae06ad458b7880f4641dfd283bf66f11c
font_01_sfnt_off000093fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x93FD 14680 bytes
SHA-256: 244eb7c4dce4cd68651bc35e1029b4bde1311d3a3341906db2a72db0afae1775

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