Malicious PDF — malware analysis report

Static analysis result for SHA-256 622ad4616c716758…

MALICIOUS

PDF

37.0 KB Created: 2020-08-18 16:43:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2a935aad6c3d7ea76a9ddfe5f7b612f2 SHA-1: 20ba6880fe6fdf9cea28db13868b86e82a32f94b SHA-256: 622ad4616c716758ee6dd2f9eb36843f225a8ad99603e950d0326160f98f93b3
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded links that redirect to a known malicious domain, suggesting a phishing or scam attempt. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector. The presence of numerous PDF links further supports the SEO link farm tactic, aiming to attract unsuspecting users.

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=esic+challan+format+in+excel In PDF document text
    • http://files.alightalive.com/uploads/1/3/2/7/132712050/gogusafewap.pdfIn PDF document text
    • http://files.drmonicamody.com/uploads/1/3/0/7/130775866/faboza.pdfIn PDF document text
    • http://files.robirving.ca/uploads/1/3/1/4/131411474/lumagewe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2819/3184/files/71160874310.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7873/8335/files/87481009476.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5497/1557/files/boxebow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3969/2699/files/13961635669.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/45484104345.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/87463685859.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3491/8558/files/gepew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0527/0427/files/72651488270.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7132/1752/files/80641254532.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3093/6733/files/zuzebukowipobuwita.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4828/7912/files/great_quotes_about_life.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/3505/5512/files/appareil_respiratoire_anatomie.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 6

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_off00004743.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4743 4932 bytes
SHA-256: d0cdde182c393c9bcd5dff296bc7aa113776e8c98b7aa14fd48c8244ecd10f65
font_01_sfnt_off000057cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57CB 9748 bytes
SHA-256: a74ee65c83de3b850263ffab5b929474166d37b319f68390e53675896cdec31d
font_02_sfnt_off0000792f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x792F 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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