Malicious PDF — malware analysis report

Static analysis result for SHA-256 704942c366a42883…

MALICIOUS

PDF

41.8 KB Created: 2020-08-08 01:23:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a79dd0f4e0a07fcab2ba0b1f6ff393ec SHA-1: 249afd31d5a82ba95ca37e1373a5adb55f62f032 SHA-256: 704942c366a42883cf74de53d6ff37a974ec2d51de785e663c9991eb67a2526d
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.cc) that is flagged as malicious. The document body, though heavily obfuscated, contains the same URL, suggesting it's the primary lure. The presence of multiple PDF links and a malicious redirector indicates a phishing attempt to drive traffic to a malicious site, likely for credential harvesting 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.cc/pify?keyword=que+es+una+cadena+alimentaria+pdf In PDF document text
    • http://files.stumparmour.com/uploads/1/3/2/6/132682039/765007d3dc.pdfIn PDF document text
    • http://tesugur.forstalsiberians.org/uploads/1/3/1/3/131398367/96b4bfe746f120.pdfIn PDF document text
    • http://files.pjsnacks.com/uploads/1/3/2/6/132695874/nopuzawukotak.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/1/0432/3888/3485/files/5229369497.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0201/9487/files/vogeruxizigabosivadob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5276/9192/files/davar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3830/0568/files/78371601410.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8126/0440/files/15619126649.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6636/8935/files/niwifomododonoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0490/3067/files/sovebuloluwusetatupalobuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8158/1223/files/warulunirurapesubimakoxiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/1517/2259/files/devi_purana_in_kannada.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5618/4992/files/kubota_l3130_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9212/4572/files/93755686568.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4326/6458/files/35404234889.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5663/5805/files/86086660007.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 1

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_off0000635f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x635F 5360 bytes
SHA-256: a63d048a9eae253dda368780b2cee78945b43730180d8d967d29b5f961e022cb
font_01_sfnt_off00007582.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7582 10728 bytes
SHA-256: 22017b1608286cd10967d3897d90ef3a649f666dc1a6ba2837a7c3349c94ce48

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