Malicious PDF — malware analysis report

Static analysis result for SHA-256 18127af53f65cfcd…

MALICIOUS

PDF

47.6 KB Created: 2020-07-27 21:10:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 9267db16b2196dc696ddb7d2a55353a9 SHA-1: a375fe7507eb91e64f3ccb747291dc723f5476f9 SHA-256: 18127af53f65cfcd608baef3a70733458e32a2d0dd0c5051e2608ea9af093f6a
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a link farm, with one specific redirector URL identified as malicious. The document body, though heavily obfuscated, suggests a lure related to 'Amapiano songs list'. The presence of numerous PDF links indicates an attempt to distribute more content, likely malicious, through a link farm strategy.

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=amapiano+songs+list In PDF document text
    • http://files.quantumarabians.com/uploads/1/3/1/3/131381772/1514889.pdfIn PDF document text
    • http://files.campverdecommunitychurch.org/uploads/1/3/2/7/132741764/xagiwase-nuwas-gilar-pitupap.pdfIn PDF document text
    • http://files.longviewforest.com/uploads/1/3/2/6/132681026/f5d1bcb7d0cd.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/1/0436/4887/6702/files/gufiradujupalamud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1967/2472/files/36089568523.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0004/5469/files/momimeraburuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3191/9765/files/56139507731.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8893/7120/files/vufujegufakuruxusegabelan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8424/2337/files/wagasiga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0876/1751/files/xarurovunukadedidufebase.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7248/6564/files/ratexabotazetavularab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5409/6806/files/pepofunezekagifugepufo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9941/3925/files/55685383693.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3488/5792/files/vebenew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4030/9402/files/firunefo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1739/5614/files/belatogu.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 6

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_off00007c29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C29 4700 bytes
SHA-256: 4f105f9906bdc1cadb3129fc5951fd56c8c3ff0d93be5b8e0603b9f4979db11d
font_01_sfnt_off00008bfa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BFA 10864 bytes
SHA-256: 64c878bc03d8813cfdf797027a24b6db48f7ae778ea661430f7d322411027b91

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