Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f0c328ce4f4302a…

MALICIOUS

PDF

39.2 KB Created: 2020-08-04 08:44:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d513bdd35b75e9b89c7a0119e3ab3a2f SHA-1: 908302bfe578e345eeeb659b5cf1c89347faff47 SHA-256: 1f0c328ce4f4302addaa4318585b7534d60189c154f7f0d08db3296b5f0fa439
194 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with a primary link pointing to a known malicious redirector at ttraff.com. This suggests the document is designed to lure users to malicious infrastructure, likely for further exploitation or credential harvesting. The embedded URL 'https://ttraff.com/pify?keyword=pdftk+command+line+linux' is the most critical IOC, as it is the entry point to the malicious chain.

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=pdftk+command+line+linux In PDF document text
    • http://files.visualgoo.com/uploads/1/3/1/3/131398406/8289045.pdfIn PDF document text
    • http://files.pegishaplace.com/uploads/1/3/0/7/130739742/dinasiza.pdfIn PDF document text
    • http://files.ireneosbornsculpture.com/uploads/1/3/1/4/131437770/zanozobuk.pdfIn PDF document text
    • http://files.vipatacticaltraining.com/uploads/1/3/0/7/130775145/pitib.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/1/0433/6055/1062/files/3054611423.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0660/7012/files/pojuwakexavebupavotokut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2457/9736/files/34698385224.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/58097506778.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0205/2257/files/17226853493.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7863/1072/files/gelotojobudurowiluxoboxow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1983/7346/files/gabewokixafekezatolunesi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8855/2870/files/guitar_pro_6_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2036/9576/files/entrepreneurship_development_and_youth_empowerment_in_nigeria.pdfIn PDF document text
    • https://linuxhint.com/install_pdftk_ubuntu/In 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: elationcommunityvoices.com 3 samples

Related samples 7

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_off00005b0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B0F 5028 bytes
SHA-256: ec2321c1d1d5676eacee41395a069e414f9f4a2c8b9ce63c76a5739af490632e
font_01_sfnt_off00006c23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C23 10652 bytes
SHA-256: 5d73705d5703bc12197f8993b0d901894adef54b3dbe7a931e862ad06da2578e

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