Malicious PDF — malware analysis report

Static analysis result for SHA-256 10b2dc3017cace4c…

MALICIOUS

PDF

41.8 KB Created: 2020-08-05 16:06:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e4d2003a13087162540de839f4408a56 SHA-1: 0983f9107078c6e818a1c03f1a4668229bb2eafd SHA-256: 10b2dc3017cace4c1354436e8f365e245fc9a57eeea10e69e8c55bb5cc12083c
194 Risk Score

Malware Insights

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

This PDF document is designed as a lure, using a fake "image to pdf converter" theme to trick users into clicking a link. The primary link redirects to a known malicious domain, indicating a phishing or malware distribution attempt. The ML classifier strongly supports the malicious verdict, and the presence of numerous SEO-optimized PDF links suggests a link farm used for traffic generation and potential exploitation.

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/wb?keyword=image%20to%20pdf%20converter%20download%20for%20windows%2010 In PDF document text
    • http://files.tomhumeartist.com/uploads/1/3/1/4/131453241/mujunatizovixikuxe.pdfIn PDF document text
    • http://files.dashandrizzle.com/uploads/1/3/0/7/130739146/d41bd7a327.pdfIn PDF document text
    • http://files.dallaswelldrilling.com/uploads/1/3/2/6/132696210/9506746.pdfIn PDF document text
    • http://files.hkcofc.com/uploads/1/3/2/6/132683111/lobojevaresale_jojolurirukekof_nunaduwarutare_rulilik.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/1/0434/3214/9148/files/2243296950.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4442/8181/files/romegajipeturewurabip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0496/6565/files/42091324261.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7424/1183/files/30593254037.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pobilimej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1898/5372/files/faboxepelopu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8660/0609/files/mabakekafexawulid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0361/7173/files/malformation_anorectal_nouveau_n.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9094/3902/files/cara_membuat_cv_menggunakan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7245/3797/files/tezibemutole.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1740/3559/files/worikag.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_off00006260.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6260 5760 bytes
SHA-256: a18b66ee7b5bb0e830bc3df3577709685186863825af29378e13dd676e0b4d04
font_01_sfnt_off00007600.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7600 10520 bytes
SHA-256: c7a1395bf1eafc1b1b375d2c5cc8b602c49c271a605a3934ffffb54ce28fac3a

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