Malicious PDF — malware analysis report

Static analysis result for SHA-256 a26c502514eb4bdf…

MALICIOUS

PDF

42.9 KB Created: 2020-08-05 02:19:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9b61a0fdbd71cf38aa9d91e373ca369a SHA-1: 60c8cdec2fca1f8234f1c8c58cea23875ab04be3 SHA-256: a26c502514eb4bdff25506566dc0e2849836539447d45433543d8c2725ec088b
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 indicates that the PDF links to known malicious redirector infrastructure, specifically 'https://ttraff.cc/pify?keyword=approximation+questions+pdf+for+sbi+po+2020'. The document body itself appears to be a mix of legitimate-looking text and obfuscated content, likely intended to mask the malicious links. 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=approximation+questions+pdf+for+sbi+po+2020 In PDF document text
    • http://files.karmicfreedom.com/uploads/1/3/2/7/132710795/zoluseratakeb-bebiwug.pdfIn PDF document text
    • http://files.jlvilloni.com/uploads/1/3/0/9/130969026/547cf.pdfIn PDF document text
    • http://files.learnasa.com/uploads/1/3/0/7/130740073/9448754.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8918/2376/files/xeladeviwinavura.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5453/8658/files/38702593782.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7701/8524/files/82857357737.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2103/1832/files/numabib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6212/3941/files/88277163516.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9016/5403/files/soda_license_key_generator.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5624/2581/files/github_discard_changes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7244/4823/files/20337224978.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9812/8036/files/67981716748.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7741/8656/files/xakujesu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1643/8438/files/puvaxorevaveribo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4994/2176/files/19885974463.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 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005c2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C2F 5752 bytes
SHA-256: d87789d646c1cc53ad3dd86ee71dd4d0a6b19525345b7a90aa2f736b1dc0b1d7
font_01_sfnt_off00006fa1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FA1 10376 bytes
SHA-256: c5524429193f9461341c074967154809dee17897e959c6450093ffb87b5f8d9d
font_02_sfnt_off00009316.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9316 2752 bytes
SHA-256: 11bf571f0af05367446b2020c2f1c6267491649bc48117454eca19867f219dc9

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