Malicious PDF — malware analysis report

Static analysis result for SHA-256 a63a669224613c0d…

MALICIOUS

PDF

42.5 KB Created: 2020-08-05 12:08:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a111db2563ab8e265ebb97c1eb719182 SHA-1: fbac27e41270a28a89e185dfa30efc4c0cc989cc SHA-256: a63a669224613c0d64c857a0714c059699c88725e42b0b5874631572c4f30495
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains embedded links that point to a known malicious redirector, indicating a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains text fragments and URLs that suggest a lure related to 'Api 527 latest edition pdf'. The presence of numerous external PDF links, many hosted on Shopify, further supports the link farm heuristic. No scripts were extracted, limiting the analysis of direct execution behavior.

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=api+527+latest+edition+pdf In PDF document text
    • http://files.ccmplbca.com/uploads/1/3/2/6/132681145/b6ff53b236.pdfIn PDF document text
    • http://files.livfoodmarket.com/uploads/1/3/1/4/131438217/02a1bc7dd.pdfIn PDF document text
    • http://files.americanrosebridal.com/uploads/1/3/0/8/130873923/xowuve.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.fontrix.comhttp://www.nhncorp.comIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/62222626122.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3926/8774/files/erp_business_case_example.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6572/0486/files/3009628119.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6842/3334/files/back_to_school_activities_for_high_school_students.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5281/7832/files/somivizuvos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3966/1981/files/82065046291.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5095/7991/files/jejifon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/58585016777.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5308/8919/files/function_of_brushes_in_dc_motor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5382/6726/files/banilinotabigibijumakinu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7015/2088/files/engineer_cosmetic_loadouts.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4183/2615/files/61065948436.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005cd8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CD8 5264 bytes
SHA-256: f5ff6e59a8c7daacbec1e3ea37113b87b9b02f56ae835b773e1e6bc6304b561a
font_01_sfnt_off00006ee3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EE3 10832 bytes
SHA-256: f7dd5dfea628137d9dba1406f2a6db6642eb06cd8731c426cf102518acd51541
font_02_sfnt_off000093d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x93D2 2228 bytes
SHA-256: 5da22109c1fba17011c849e065b2f3278334ccd609d6a9cfc06e7966f70e6d9e

Open this report in the interactive analyzer, or submit your own file for analysis.