Malicious PDF — malware analysis report

Static analysis result for SHA-256 aab99c32d064de32…

MALICIOUS

PDF

56.4 KB Created: 2020-08-04 23:25:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ed1510fdc47d772ce642e241a5f7c5de SHA-1: 5fc41f4ea36e84e95ac787fce82eee327227b3e0 SHA-256: aab99c32d064de32d4551c86c00fd5644553e0659e638cf51291f5f1cd0443f2
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, many of which point to external resources. One critical heuristic firing indicates that the PDF links to known malicious redirector infrastructure, specifically 'https://ttraff.cc/pify?keyword=participatory+monitoring+and+evaluation+tools+and+techniques+pdf'. This suggests the document is designed to lure users into clicking malicious links, likely for phishing or malware distribution. No scripts were extracted from this sample.

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=participatory+monitoring+and+evaluation+tools+and+techniques+pdf In PDF document text
    • http://files.fabrizioatelier.com/uploads/1/3/2/6/132680831/nanofimuwe-fureniw-xesamog.pdfIn PDF document text
    • http://files.corelifept.com/uploads/1/3/1/3/131383892/1160368.pdfIn PDF document text
    • http://files.hemamikkilineni.com/uploads/1/3/1/8/131857920/sikijatabojuxo.pdfIn PDF document text
    • http://files.shebossunlimited.com/uploads/1/3/0/9/130969982/6493298.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/1/0434/5780/6502/files/30754354822.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2121/2570/files/56804574534.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5915/7921/files/14690698879.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4585/5137/files/15501165426.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3448/3616/files/lubebaduvaku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3631/8616/files/45073434356.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4227/4454/files/kolefojakakasurafikusur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5905/2706/files/51212939774.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/49181926903.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2936/4885/files/72572495746.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7573/9553/files/juxidug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3423/7345/files/43025366321.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 3

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_off00009d55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9D55 5860 bytes
SHA-256: abe9932e33337d5d1bbb3c2908c462af04fcc1389f0f06631ac4f252b5daba11
font_01_sfnt_off0000b124.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB124 10236 bytes
SHA-256: 913d7374b7eac4b09696a8f57158b06f7f30d47888ab7847d62ab57ca3f27259

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