Malicious PDF — malware analysis report

Static analysis result for SHA-256 1424cfa2da8491a7…

MALICIOUS

PDF

61.1 KB Created: 2020-08-12 15:00:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3330981b99019b66e8e710fdd14e6538 SHA-1: df181334c595993b1b2399e609ac2d0cea9d769d SHA-256: 1424cfa2da8491a73777614b15ad173fcbf1c64386caa46a651fa3ec72fd283b
170 Risk Score

Malware Insights

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

The PDF contains heuristics indicating it's a malicious redirector and part of a link farm, designed to lure users with urgency and download prompts. The primary malicious URL identified is a redirector, likely serving as a gateway to further malicious content or phishing pages. While no scripts were extracted, the PDF structure and embedded links strongly suggest a phishing or malicious redirection attack.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/wb?keyword=liposome%20preparation%20protocol%20pdf
    • http://fibule.kaylamakeuppro.com/uploads/1/3/0/9/130969352/3421016.pdf
    • http://files.neeleyandneeley.com/uploads/1/3/2/6/132681672/1235787.pdf
    • http://files.evepinsonnault.com/uploads/1/3/2/6/132681672/jugipujunuxex.pdf
    • http://godoleje.thephronetic.com/uploads/1/3/1/4/131452903/1c5d4f303880dc0.pdf
    • http://files.childrenscoalitionac.org/uploads/1/3/1/3/131379343/0eb635be0c7.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/81159011373.pdf
    • https://cdn.shopify.com/s/files/1/0433/0645/1094/files/familias_de_hemiptera.pdf
    • https://cdn.shopify.com/s/files/1/0435/4922/9220/files/54255003621.pdf
    • https://cdn.shopify.com/s/files/1/0428/8249/8716/files/47612062973.pdf
    • https://cdn.shopify.com/s/files/1/0430/6193/6285/files/57948291284.pdf
    • https://cdn.shopify.com/s/files/1/0435/6295/8997/files/hdfc_mutual_fund_redemption_form.pdf
    • https://cdn.shopify.com/s/files/1/0431/3153/5524/files/93531979289.pdf
    • https://cdn.shopify.com/s/files/1/0430/7550/2234/files/19286804726.pdf
    • https://cdn.shopify.com/s/files/1/0427/5650/5756/files/waxukifusiroritiz.pdf
    • https://cdn.shopify.com/s/files/1/0431/0004/5469/files/46777871287.pdf
    • https://cdn.shopify.com/s/files/1/0431/7921/2959/files/apa_6th_edition_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/8439/8244/files/94399307459.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b125.bin
31939a0ca0662ba785d447dbf7e81163a84af701482143760e4deae652fe0351		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB125 5240 bytes
font_01_sfnt_off0000c2db.bin
cbf68e72983b6f3902d2c26071379d31ca6fbd9285bc9cb65ad198143f49942c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC2DB 10700 bytes

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