Malicious PDF — malware analysis report

Static analysis result for SHA-256 68b4253bc92505e5…

MALICIOUS

PDF

55.5 KB Created: 2020-08-01 12:38:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 06c4af18c1334720a3d6f739186f0091 SHA-1: dc2cd69dca9f98a076661efcb2e80eed71b3c447 SHA-256: 68b4253bc92505e560a35a82ea35e50db71a5848a3ff5eeebe0a124635993702
194 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one identified as a malicious redirector. The document body, though partially corrupted, contains text suggesting a lure related to a 'manual' and includes the malicious URL. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm designed to distribute malicious content or phish users. The ML classifier strongly flagged this PDF as malicious.

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=kappa+alpha+psi+scroller+manual In PDF document text
    • http://files.lavapeakbengals.com/uploads/1/3/0/7/130739918/xabapubaga_zidanozinaj_jixunowowu_wifejigozowe.pdfIn PDF document text
    • http://files.benedictinefarm.com/uploads/1/3/1/4/131438245/gekojexupakuwuvoxe.pdfIn PDF document text
    • http://files.zoezimski.com/uploads/1/3/1/4/131454850/9df4d0ba26a5d8.pdfIn PDF document text
    • http://files.artimc.org/uploads/1/3/2/8/132815054/1033862.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/1/0432/6657/2452/files/zavukuriwukeviradaviremof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2296/7207/files/vunivuwamulagafikir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2834/9079/files/tusigulanugolusegebi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9534/1723/files/xidakijekorasoxusaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3282/1412/files/35264108025.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2029/5064/files/87367485282.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0936/7454/files/denalimiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2753/7828/files/9572560444.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9848/1564/files/52196977769.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7754/9726/files/19560769790.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1577/4108/files/59624421539.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 4

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_off00009a1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A1E 5144 bytes
SHA-256: aa3df84f7d19b313e72b53ad9932df5934c33efaea49c82a90864b1715c35351
font_01_sfnt_off0000ab73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAB73 10672 bytes
SHA-256: 1b285e5b39ce6b064df871f00fd4d2481f5c62da5a856baec227271f17350857

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