Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb162bbcc6c49703…

MALICIOUS

PDF

47.5 KB Created: 2020-08-07 00:44:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8f04d1ca76fe2cb51dc21a52becc07dd SHA-1: 33caaf62f19e49e5a47bf3857e25aa314ce3d461 SHA-256: bb162bbcc6c49703b5e4d149fb4aca5ecf666d0a5d761da720d75284db2c17c5
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=acrobat+pdf+printer+mac'. This indicates the document's primary purpose is to redirect users to a potentially harmful site. The document body, though heavily obfuscated, contains this URL, reinforcing its role as a lure. No scripts were extracted, but the presence of a malicious redirector is sufficient evidence of a phishing or malware distribution attempt.

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=acrobat+pdf+printer+mac In PDF document text
    • http://files.earthlingdesigns.com/uploads/1/3/0/8/130813514/1547979.pdfIn PDF document text
    • http://files.alexsalvi.com/uploads/1/3/0/7/130776150/vakajup.pdfIn PDF document text
    • http://nuzigora.marylandmonarchconservation.org/uploads/1/3/1/6/131607062/67e7033d452.pdfIn PDF document text
    • http://files.seantreasure.com/uploads/1/3/0/9/130969446/63754.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0833/4744/files/86621026651.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9800/4899/files/modal_verbs_exercises_2_bachillerato_with_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7927/0554/files/il_paradiso_perduto_john_milton.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8280/9508/files/rijezile.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7727/1703/files/xawawanelox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6966/1589/files/52268224950.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0645/2127/files/xonunufa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5843/0106/files/20866624639.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8068/7520/files/49048126312.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6716/2276/files/karepafokew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5197/3794/files/apache_poi_csv_to.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/23063093424.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4703/3752/files/xomiparixupeti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0321/3984/files/tabla_de_alimentos_ricos_en_potasio.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
font_00_sfnt_off00006e39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E39 5008 bytes
SHA-256: 405571e39c4fa2ab9884774956e06fdf9d4fe04ec190fa41c3ce5053cf7dda8e
font_01_sfnt_off00007f18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F18 10492 bytes
SHA-256: e2f96b87b2554ae2e3b62ab08be8ad383c616e814fb01795ad30c9c081bc0cc8
font_02_sfnt_off0000a262.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA262 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c