Malicious PDF — malware analysis report

Static analysis result for SHA-256 5835986f00ab77fb…

MALICIOUS

PDF

42.4 KB Created: 2020-08-11 08:06:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4a1a132f99b1e0760d72c930f24e1b88 SHA-1: dd90e9bfa902d34bbe63190ff00aa8d491ccc3f0 SHA-256: 5835986f00ab77fb4013c6c9f54fe19bf9de869d8e9c2e28becb520af9c0a059
202 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=bsnl+broadband+plan+odisha+pdf'. The document body, though heavily obfuscated, also contains this URL and references 'bsnl broadband plan odisha pdf', suggesting a lure to trick users into clicking the link. The presence of numerous external PDF links further supports a link farm or redirection strategy. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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
  • 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=bsnl+broadband+plan+odisha+pdf In PDF document text
    • http://files.ndsportschannel.net/uploads/1/3/0/7/130775135/2c5039721.pdfIn PDF document text
    • http://files.chioscleveland.com/uploads/1/3/2/3/132303373/cdf1c3382abe.pdfIn PDF document text
    • http://gulupibuw.saintluciaattracts.com/uploads/1/3/0/8/130814328/tekit.pdfIn PDF document text
    • http://files.mckinneymedicalcenter.com/uploads/1/3/1/0/131070309/1117080.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/1/0432/6146/0644/files/totetoxakipojilo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7441/2949/files/wuriligemogonanagipu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1572/3414/files/33960416112.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1036/6362/files/pinekisumokudizovun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tobilefoseparavako.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0703/2990/files/ncert_biology_class_11_text_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9826/8065/files/faledijinop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3630/9666/files/kamuzufuzarezidinoxazex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1350/5185/files/5893055604.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7921/2959/files/tutuzafimebajapovi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2865/9874/files/83055083324.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 3

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006631.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6631 5316 bytes
SHA-256: b1b286246a26209c411081f6806dfa4096e14e1bd06ba26db9c973b88c45f161
font_01_sfnt_off0000782d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x782D 10896 bytes
SHA-256: 53a65f7ca34be88f9423b9042c04acfbdcdd3cf8c9b9f2170cf5ad5de723ca3e

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