Malicious PDF — malware analysis report

Static analysis result for SHA-256 02d4af3b21075858…

MALICIOUS

PDF

34.8 KB Created: 2020-08-24 01:54:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3d590d5e359d239c92f9d143435ba187 SHA-1: 4add584489b33849aaa70dfcab5a45f3c83963a9 SHA-256: 02d4af3b21075858ff7454c16ae71979349f31eb2ea3ab31fb959e7deaa00107
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, many of which point to a redirector service known for distributing malicious content. The document body, though heavily obfuscated, contains a URL that appears to be part of this lure. The presence of a malicious redirector and a large number of external links suggests a phishing or scam attempt, likely designed to trick users into downloading further malware or visiting malicious sites.

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=carenado+phenom+100+x+plane In PDF document text
    • http://files.marilynoconnell.com/uploads/1/3/1/4/131452836/kovamebiragifem_dovitu_wojedodek.pdfIn PDF document text
    • http://files.madaassoc.org/uploads/1/3/0/8/130874655/jigumimitigatotadum.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/1/0429/5314/6517/files/the_deep_blue_sea_1955.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8016/3227/files/65743451212.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7955/5486/files/bidezuxeviru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1926/3397/files/wepabuzizugodolor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8768/4003/files/44958131518.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2639/0951/files/queen_bed_sheet_sets_canada.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7287/1832/files/27225863358.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8126/9401/files/jobcentre_plus_travel_discount_card_application_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0460/7139/files/little_drummer_girl_tv_series_episode_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7302/7749/files/71200577618.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
🗂 Part of campaign: madaassoc.org 5 samples

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_off00004b94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B94 5188 bytes
SHA-256: ef50ba910dbf32f8e01e599c76488f2f0dd1e7e395a2d942624e703032600a56
font_01_sfnt_off00005d0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D0F 9860 bytes
SHA-256: 3b5903c8af11f8521b81ba2d39a3fd38cb12409a25de9fd73ac4e7d4a66b110d

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