Malicious PDF — malware analysis report

Static analysis result for SHA-256 96a36fd645d0fee9…

MALICIOUS

PDF

65.9 KB Created: 2020-07-30 13:31:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 891558686cc9f7b6a9afbfa640572cfb SHA-1: 660e0bff91f307eb8bbcc19f1deb5d39b7273a8f SHA-256: 96a36fd645d0fee97f706afcf163362156398795ee4309bdca565b51a7af3abc
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, identified as a link farm, designed to redirect users to malicious infrastructure. One such link, 'https://ttraff.cc/pify?keyword=baby+girl+names+in+tamil+hindu+pdf+format', is flagged as a malicious redirector. The document body, though heavily obfuscated, appears to contain text related to baby names, likely serving as a lure. The primary attack pattern involves tricking users into clicking malicious links within the document.

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=baby+girl+names+in+tamil+hindu+pdf+format In PDF document text
    • http://files.tellmemo.eu/uploads/1/3/1/4/131482946/f4f0752b60b8506.pdfIn PDF document text
    • http://files.sheilabalzer.com/uploads/1/3/1/4/131438809/tupuporag.pdfIn PDF document text
    • http://files.mountainvalleygscamp.com/uploads/1/3/1/0/131070867/zekigew-buwedi-futode.pdfIn PDF document text
    • http://files.offlimitsphotos.com/uploads/1/3/0/8/130814492/234cf.pdfIn PDF document text
    • http://files.wkuprecollegepiano.com/uploads/1/3/1/4/131454165/2029689.pdfIn PDF document text
    • http://fedorahosted.org/lohitIn 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/1/0433/3823/6062/files/momefimoriso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8558/6841/files/29079814029.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dewubi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7738/5892/files/34314868338.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8976/2206/files/xefefofa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5350/4917/files/vanit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0660/5987/files/zometesejajewo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8996/1884/files/97027694455.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4214/3397/files/vezorixevakavo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/7236632937.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1147/3571/files/82917182339.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1470/1735/files/pozajemalejazikifo.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_006_off0000b284.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xB284 14988 bytes
SHA-256: 0153e04b7ac8b7f5e1e1fea386d0c7d0d4482830774dc98002bc2fa1b21bc975
font_00_sfnt_off00009f97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F97 5628 bytes
SHA-256: 270b16959f500ce565c53a8fa728a4a94fd8bf3d0348e2068eb6198c979dda95
font_02_sfnt_off0000d80b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD80B 9880 bytes
SHA-256: 1ba1398fdd3338ee246ddb9c9a5ce927775fc19ef126195a343d7ddb996eb482