Malicious PDF — malware analysis report

Static analysis result for SHA-256 df45175d7a7e9245…

MALICIOUS

PDF

40.8 KB Created: 2020-07-31 23:35:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ddb0ac6696845c136754e0ef9ddb332e SHA-1: 5d658fc3f83134875768bc9c0154c182016312d2 SHA-256: df45175d7a7e9245dc42e55287f1f7308aea5c9811ca74f3da9752c182d2e520
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains numerous links, including one pointing to a known malicious redirector at 'ttraff.com'. The document body, though heavily obfuscated, contains text related to "Hacking for dummies 2018 pdf", suggesting a lure to entice users to click the embedded links. The ML classifier strongly flagged this PDF as malicious, and the presence of a redirector confirms a malicious intent to lead users to harmful 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.com/pify?keyword=hacking+for+dummies+2018+pdf In PDF document text
    • http://files.nickseifert.com/uploads/1/3/2/6/132680852/lirurifijewure-vedimopiz.pdfIn PDF document text
    • http://files.jenilynnphoto.com/uploads/1/3/1/4/131437471/duvemu.pdfIn PDF document text
    • http://files.unitedfellowshipministries.com/uploads/1/3/2/6/132681436/judumupoxelib_zijakof.pdfIn PDF document text
    • http://files.kmlc.org/uploads/1/3/1/3/131379099/namowu.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/1/0429/3056/9382/files/52571808352.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4042/3587/files/88034472814.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6299/2795/files/nidoxal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4630/4920/files/bigazibadepakuxokofid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6472/1562/files/wikelisutovovilol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2270/5055/files/ditufimazorevetiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8092/4837/files/biganodenapulujej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6640/6552/files/tobunonofebuwamapogagif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6713/0534/files/lotedumulosuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2378/5370/files/20874455434.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 5

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_off00005f10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F10 5988 bytes
SHA-256: e64ce9aca75e90273d6d434c68b72e841c8d7c1a25007028a5e84e91475cded2
font_01_sfnt_off00007368.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7368 10252 bytes
SHA-256: f47b6fbe0aab7c039a1ee5970eb60fe12495429ba46df53a4635a2dd4352291b

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