Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6b58102db59842c…

MALICIOUS

PDF

50.3 KB Created: 2020-07-31 04:23:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2fdc22061a39934ee0411e3ba5ac5d32 SHA-1: 8c6d688af47792afd0ee309b1609559a1e3b90bd SHA-256: b6b58102db59842c1683015b8a71aa52bb3d0eb89ebd96ba0d6eb142b6e9bb55
210 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing for PDF_SEO_LINK_FARM indicating a link farm. One of these links, 'https://ttraff.com/pify?keyword=ibps+recruitment+2020+pdf', is flagged as a malicious redirector. The document body also contains text related to 'Ibps recruitment 2020 pdf', suggesting a lure to attract users searching for recruitment information. The presence of a visual download button lure further supports the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 7

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=ibps+recruitment+2020+pdf In PDF document text
    • http://files.sportsimagephoto.com/uploads/1/3/1/3/131379899/2090814.pdfIn PDF document text
    • http://files.indoceylon.com/uploads/1/3/1/4/131437775/gatexiwadabe.pdfIn PDF document text
    • http://files.grantaboutique.com/uploads/1/3/2/6/132681579/1549220.pdfIn PDF document text
    • http://files.theforest.co.in/uploads/1/3/0/7/130776485/futupitupetonesoko.pdfIn PDF document text
    • http://files.dilpatrickmedia.com/uploads/1/3/0/7/130775921/a4b07.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/1/0431/0876/1764/files/zasasov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6604/1244/files/ketavoruz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0592/6809/files/95515535586.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wevanedinuwisuvajolow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3849/8198/files/dizesejexusojivato.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4030/9402/files/39347924957.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1312/8863/files/gagawikadarifekefokesit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0056/0805/files/jigeruxame.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2688/9374/files/14236383401.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4077/6093/files/18832211305.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0042/9731/files/zemirigusudigowumamipego.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4693/5445/files/tomopakifiwubuvosubu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1848/4885/files/77196145876.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1519/1202/files/vobutetubegapuwolegif.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000877f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x877F 5184 bytes
SHA-256: 350ab691d355d79d520df18932c0f6ea09ce4c7e13988ec2febf2b385c58475b
font_01_sfnt_off00009900.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9900 10264 bytes
SHA-256: f9c634373b85c8b10ea748e1218ad99e8b96932ac8c055b15f2b4e973483ed47