Malicious PDF — malware analysis report

Static analysis result for SHA-256 1499f61840f89b8f…

MALICIOUS

PDF

39.9 KB Created: 2020-08-03 15:35:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f3833761c9a4eb8d359b03cc8fec3ae3 SHA-1: 2b1bb79bec965f56e7526979506c5d0e5b9872c7 SHA-256: 1499f61840f89b8f27b32338dccb85a268ea400f3fb8f1559c8aefa3c46cf477
194 Risk Score

Malware Insights

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

This PDF document contains numerous embedded links, many of which point to a redirector service known for malicious activity. The document body and heuristics indicate a lure for a 'book download', which is a common tactic for phishing or malware distribution. The primary redirector URL identified is https://ttraff.com/pify?keyword=avik+sarkar+book+pdf+download, which is used to funnel victims to potentially harmful content.

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=avik+sarkar+book+pdf+download In PDF document text
    • http://files.oatfieldfarmandstables.com/uploads/1/3/0/7/130776111/pibojimevu.pdfIn PDF document text
    • http://files.dollbayou.com/uploads/1/3/1/3/131398507/diwofogeluwo.pdfIn PDF document text
    • http://files.marktech1.com/uploads/1/3/2/7/132740620/5012904.pdfIn PDF document text
    • http://files.cayliemashphotography.com/uploads/1/3/1/6/131607363/dimixibefe.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/1/0428/9835/8432/files/xigidewepiwunabifaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2127/9138/files/tikakutid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6443/4589/files/pulofojisudezufa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6608/7832/files/28591218338.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8201/5135/files/39378143474.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9898/7941/files/53737044465.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8360/4903/files/anet_a8_cura_profile.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4297/1553/files/48011967971.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1034/2564/files/ginirajasutoruxozobate.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3741/7891/files/33227967377.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4474/8950/files/89450175042.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2291/6520/files/77074500526.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8022/0826/files/41082541789.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://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004792.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4792 5380 bytes
SHA-256: edc38f3c1a5381437849a9b8efd943f7f1d0e375f7e0ea67382c5cd7d7152b57
font_01_sfnt_off00005a01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A01 7940 bytes
SHA-256: 9b6392baa2edb8e8a8b63a677f173a009d7172caccc5e3fb10ee1930f5338462
font_02_sfnt_off00007279.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7279 9252 bytes
SHA-256: d761b0954ac8c6f948a93eefbf51c46ff0b0e796e4136a3c47392fd9faeb0e91