Malicious PDF — malware analysis report

Static analysis result for SHA-256 1da2b02e0098e509…

MALICIOUS

PDF

37.0 KB Created: 2020-08-07 02:48:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5bc524edb0dd212f52484b0c92abc1cb SHA-1: 5b808101875bce851482b9397a8a8c1fac952c93 SHA-256: 1da2b02e0098e5099d0660a6b2dd0ca37688e1492d46c1ce9985c8734f6a35d3
194 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=ammo+45+certificate+pdf'. The document body, though heavily obfuscated, contains references to 'Ammo 45 certificate pdf', suggesting a lure. The file also exhibits characteristics of a link farm, with numerous external PDF links, many hosted on Shopify. The primary malicious IOC is the redirector URL, which likely leads to further malicious content.

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=ammo+45+certificate+pdf In PDF document text
    • http://piboz.peakelectricbikes.com/uploads/1/3/1/3/131398091/megaxipexupiluba.pdfIn PDF document text
    • http://files.satellitecityhall.com/uploads/1/3/1/3/131381607/d57e0fcb8b9.pdfIn PDF document text
    • http://xitumag.rtgdanceministry.com/uploads/1/3/1/3/131381428/pelarek.pdfIn PDF document text
    • http://nipajaf.carenharrisphotography.com/uploads/1/3/0/9/130969465/pefozede.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/1/0431/9775/9643/files/puninudezebogigoruw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3861/2378/files/js_array_push.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4842/5889/files/87581757764.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/matam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9060/8285/files/kanipej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9083/6645/files/ziwamofopo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7835/1003/files/adquation_formation_emploi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7201/1941/files/96029518618.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1324/2005/files/gawepafikobenadifimabo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6374/5441/files/aumenta_tus_gluteos_sin_cirugia.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_off00005141.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5141 5292 bytes
SHA-256: 829e67ca0b9683fd006066c7e37e5826bcac57eaed0bac62ff3d3be3a089ae10
font_01_sfnt_off00006339.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6339 10668 bytes
SHA-256: 6a7a0efe4efbd54958304c1e14f2e9c14b10e097f197cd519c08f4863af31945

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