Malicious PDF — malware analysis report

Static analysis result for SHA-256 2574f0f84732ed5e…

MALICIOUS

PDF

58.1 KB Created: 2020-08-07 19:03:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cdf1406cf97ae0fdfbf7e04253eb7c2c SHA-1: e150c2e4c370913f82988b5b94c90d206ddb715b SHA-256: 2574f0f84732ed5e69c8008f3b1de4c96672860e7dc3d8f2d1742af306da874f
282 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1204.002 Malicious Link

The PDF contains a lure related to 'Aadhar card download' and includes numerous links, many of which point to a redirector infrastructure known for malicious activity. The presence of multiple SEO-themed PDF links and a specific redirector URL suggests a phishing or credential harvesting campaign. The ML classifier strongly indicated maliciousness, supporting the conclusion that this document is designed to lead users to harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 8

  • 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.
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • 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
  • 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=aadhar+card+download+pdf+by+aadhaar+number In PDF document text
    • http://files.eroticabotanica.com/uploads/1/3/2/6/132683137/minanujonu_mikovalujukib_gamuzup.pdfIn PDF document text
    • http://tekena.historywithmrsb.com/uploads/1/3/1/4/131453574/8096280.pdfIn PDF document text
    • http://files.graysummitchurch.com/uploads/1/3/1/4/131438211/runojijax.pdfIn PDF document text
    • http://files.annieleezimerle.com/uploads/1/3/0/7/130738712/lukaxifavo_daramigepevunu.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/1/0431/4628/1120/files/lijumodowudit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2906/1014/files/84289669468.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9766/1348/files/iliad_book_2_summary.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8678/2369/files/biorefinery_process.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2265/4362/files/jilerituvunepaludurez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5171/8558/files/13622336508.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0979/4463/files/47947090994.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4535/5674/files/mosagemajumebizuki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5385/0528/files/musuromebixapiduwilisak.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007d87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D87 5540 bytes
SHA-256: ee7b1fe4d67401b88eee70ca579e488e32ba5f8dfeddb0671e8d4fd1b98efaa8
font_01_sfnt_off0000904a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x904A 9936 bytes
SHA-256: fcc062162d99da06524471dfb359d7282025e634fadd54bb67b1bc07e735f90b
font_02_sfnt_off0000b284.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB284 16144 bytes
SHA-256: 764fe263e68fd20aff2bbd96e69f5a400d440299d02096befa162391f913c7cf
font_03_sfnt_off0000c7c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7C1 5372 bytes
SHA-256: a0d86b3d11594be0b316af0d2b4b6264f63346b84500dd6e769d52b19e5a15d9