Malicious PDF — malware analysis report

Static analysis result for SHA-256 a15564c14edf9bb3…

MALICIOUS

PDF

73.3 KB Created: 2020-08-21 10:59:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d374d10e363586c4c9f3f83fda0f2383 SHA-1: f8cc19072a4e301488829f34b5d34a9b5061b12c SHA-256: a15564c14edf9bb3897191cdb6cdfbac94f47ead5cd0cfd1a9c43b0bdae6d903
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.ru, disguised as a search result for 'Europa league predictions bleacher report'. The document also features a large number of links to other PDFs hosted on Shopify, likely part of a link farm to manipulate search engine rankings. No scripts were extracted, and the document body is heavily obfuscated, but the presence of the malicious redirector is a strong indicator of malicious intent.

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=europa+league+predictions+bleacher+report In PDF document text
    • http://migok.whiteoakumc.org/uploads/1/3/1/3/131398455/2598092.pdfIn PDF document text
    • http://fozowadeb.parramattagaolghosttours.com.au/uploads/1/3/0/7/130739275/8851094.pdfIn PDF document text
    • http://nogobodup.worldtravelhacker.com/uploads/1/3/1/4/131453133/bodujazagarize-savupesijuj.pdfIn PDF document text
    • http://files.azmomsco.com/uploads/1/3/1/4/131409463/57f44.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/1/0443/3153/2444/files/endless_night_agatha_christie_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5748/6753/files/dictionary_english_english_marathi_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6759/6184/files/58709571351.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8346/3832/files/gefinobus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6035/3429/files/vmware_workstation_pro_15_license_key.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4962/2431/files/migogudugemewiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8565/2375/files/wopatinikowupasakev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7526/2869/files/2915757875.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4994/3202/files/48034935441.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4976/0406/files/botanica_plantas_medicinales.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2201/4870/files/zugitipevamawijokox.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
    • https://t.co/sjGTDCQIn 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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007ee6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EE6 7052 bytes
SHA-256: 53e577dd660245c0790aeb3dc51c7dcdf2f53445d2a1340ae678de6db9207fd1
font_01_sfnt_off000090d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90D3 3136 bytes
SHA-256: 95b8098a4042feaabcbc2eb97379a5d053fb975780bc29df41deb7d226d425c1
font_02_sfnt_off00009bff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9BFF 5432 bytes
SHA-256: 48382e102e477f0d095ae23eb114e09fab157514804c7b048c79730f5c7411b0
font_03_sfnt_off0000ae64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAE64 9032 bytes
SHA-256: 1ae56ee299c5e5db4564fd7fed6e71b74306dadfcace039ea903bacfe0b46829
font_04_sfnt_off0000cbb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBB9 15568 bytes
SHA-256: ea03fcabb2ed88be7ee7d5c97715e85cd6fa2551532daee89630c3b226e798f2
font_05_sfnt_off0000fc6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC6A 17332 bytes
SHA-256: e42ab028119d0091381de8616b493655809d2ef210100f787145d8ecee9c3c5e

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