Malicious PDF — malware analysis report

Static analysis result for SHA-256 182038ab7f05b246…

MALICIOUS

PDF

37.9 KB Created: 2020-08-19 14:20:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e435cdf493ce87b271ebebb2eb44747e SHA-1: d0715e651e13d8438bdc1129a3251a884252deae SHA-256: 182038ab7f05b24697536ab20be8b4cd1c0c550e1862ce3e4eef90a6d23ef91b
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic identifying a malicious redirector at 'https://ttraff.ru/pify?keyword=amar+ujala+epaper+allahabad'. The document body, though heavily obfuscated, also contains this URL and other links to PDF files hosted on various domains, suggesting a link farm or phishing lure. The ML classifier strongly indicates maliciousness.

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=amar+ujala+epaper+allahabad In PDF document text
    • http://files.thepinkcarpetevent.com/uploads/1/3/1/0/131069789/bifegofilufenitolapo.pdfIn PDF document text
    • http://files.yogarascal.com/uploads/1/3/1/4/131438079/2210729.pdfIn PDF document text
    • http://files.shearserenitysalon.com/uploads/1/3/1/3/131383553/53b9878d6b0f11.pdfIn PDF document text
    • http://files.reikifortheplanet.com/uploads/1/3/0/7/130775109/rirowanol_xeromovu_gobodezuva_fuzejizugibovo.pdfIn PDF document text
    • http://files.barnes1ststepft.com/uploads/1/3/1/6/131606059/fovodivi_wejanu.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/1/0452/2527/9648/files/scope_of_social_case_work.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/rexalomofovuwazeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1179/1253/files/characteristics_of_every_accounting_information_system.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7394/6275/files/wodagofikaxola.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6274/7548/files/jizupifotuguvuxipito.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7098/0247/files/katolight_generators_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0428/0481/files/kenewij.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
    • 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000045a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45A8 5224 bytes
SHA-256: c9d60aa6a05a4b0a2ff25e127ecbc25a27715982e058e858cd01474a8a0f593b
font_01_sfnt_off00005736.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5736 8880 bytes
SHA-256: 1a01f120842f57ef0bc3dcd9f581e740ce889360f037b1c8b32ecc868c474c3e
font_02_sfnt_off000075cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75CC 16164 bytes
SHA-256: e296a61d2d303e35be9e1a35631556663d2780498efa7e8f3867bf557f172fe6

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