Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b3a8ce159e160d1…

MALICIOUS

PDF

52.5 KB Created: 2020-08-23 03:31:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3632455b6c0434a2d351ec8f18ba0e46 SHA-1: 8a327f7539d5a09c7dae9a12cb26507ca7f1c9cd SHA-256: 1b3a8ce159e160d18f07ff23f5c11179caaa202c8a8afc356ecb691d324caed4
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirection and a link farm. The ML classifier strongly supports maliciousness. The document body, though partially obfuscated, contains the URL 'https://ttraff.com/pify?keyword=automation+studio+6.+0+software+free', which is flagged as a known malicious redirector. This suggests the PDF's primary purpose is to redirect users to malicious 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=automation+studio+6.+0+software+free In PDF document text
    • http://files.sproutsmyanmar.com/uploads/1/3/2/3/132302863/giburapudiga-dojowul.pdfIn PDF document text
    • http://files.mrnicecream.us/uploads/1/3/2/6/132680901/xegiguburulejod.pdfIn PDF document text
    • http://gulufip.catlinsdiscoveries.com/uploads/1/3/2/6/132680874/fakofujaz_vazoxi_sefoz.pdfIn PDF document text
    • http://dexutovar.evolutioninactionworkshops.com/uploads/1/3/2/8/132816066/resijilokutopa.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/1/0433/2371/9845/files/83762054247.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6015/8873/files/arpan_movie_song_ringtone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6966/1589/files/hanuman_songs_telugu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9959/4656/files/29145857919.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/2723/4722/files/55052586234.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4848/5535/files/blackberry_9900_bold_software_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6676/9054/files/lajoxelezagipilesuvowonem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8098/1403/files/linkedin_profile_photo_guidelines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7382/1082/files/98607401165.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4693/5451/files/52795559318.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 8

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_off00008916.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8916 5432 bytes
SHA-256: 620daa542e706665d381bc118ddf9d31e0f5da9a58527f7abb213c66be6ecfc9
font_01_sfnt_off00009b82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9B82 12832 bytes
SHA-256: 2e38075dfc1d434985530d405d3386ca6b0775b7542a6254c23c058b3cd33679

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