Malicious PDF — malware analysis report

Static analysis result for SHA-256 23f55851bddea52c…

MALICIOUS

PDF

46.5 KB Created: 2020-08-22 12:38:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 64cc352ace11fe41930e3c7e22f57f37 SHA-1: 654eab4fad252bf5be4df924d2d3c8ae4b9b6599 SHA-256: 23f55851bddea52cfd779e8db97b9e77dc1654f87f1aa11fea1474b633ff1c40
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.ru'. The document body also contains the text 'Cv customer service template' and the same URL, suggesting a lure to trick users into clicking the link. The PDF also contains a large number of external links, many hosted on Shopify, which is flagged as a link farm. The primary malicious IOC is the redirector 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.ru/pify?keyword=cv+customer+service+template In PDF document text
    • http://files.carlinvillefire.com/uploads/1/3/1/4/131483361/f57fc2f.pdfIn PDF document text
    • http://pebule.championcleaning.net/uploads/1/3/1/3/131382134/8272b4cb409.pdfIn PDF document text
    • http://files.groundwaterarts.com/uploads/1/3/0/7/130739945/eef7985.pdfIn PDF document text
    • http://files.jppickens.com/uploads/1/3/0/7/130776393/3511963.pdfIn PDF document text
    • http://files.okchomeinspectors.com/uploads/1/3/1/3/131382217/jesegomo.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/1/0437/4819/6503/files/bahubali_2_cinema_songs_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4793/4357/files/thiruvannamalai_annamalaiyar_songs_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/44219577828.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1647/6056/files/simplifying_complex_rational_expressions_worksheet_with_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/78986196578.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0722/7542/files/bloody_roar_4_ppsspp_iso_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9218/9089/files/55212092453.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8131/1132/files/41316100662.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3350/9535/files/ranukujate.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1888/7073/files/88836211562.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9526/1348/files/legend_animate_text_mod_apk.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_off00007927.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7927 5044 bytes
SHA-256: eef479e64ff6db2df41a10ce91a13663f81c14eae3ccdcb5934deea800cd1a74
font_01_sfnt_off00008a2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A2F 10228 bytes
SHA-256: da1ac01ba21632fa11edcfd8e4dce4c356d926310cd14096aeec28152c323555

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