Malicious PDF — malware analysis report

Static analysis result for SHA-256 152698fef6b7ac27…

MALICIOUS

PDF

71.7 KB Created: 2020-08-19 13:05:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 740d52274d8099ef5e33e498ddb6fbd9 SHA-1: 2ad0c598a201b5d26a00b90c87f0efc1923476d8 SHA-256: 152698fef6b7ac27f7229550bc8443080b2871523b362b9e33fc9d7a4e65936b
194 Risk Score

Malware Insights

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

The PDF document contains embedded links that redirect to a malicious URL, identified as 'https://ttraff.cc/pify?keyword=labour+force+survey+report+2016'. This URL is flagged as a malicious redirector. The document body, though heavily obfuscated, contains text suggesting it is a 'Labour force survey report 2016', likely a lure to entice users to click the malicious link. The presence of numerous PDF links and the ML classifier's high confidence score further support its malicious nature.

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=labour+force+survey+report+2016 In PDF document text
    • http://files.whisperwindaussies.com/uploads/1/3/1/4/131410870/kakaxivono.pdfIn PDF document text
    • http://noxaruje.olgaandflo.co.uk/uploads/1/3/1/3/131379530/4149409.pdfIn PDF document text
    • http://kepomoko.iacela.com/uploads/1/3/1/4/131437402/422b40f5b9.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/1/0431/9775/9643/files/pumixun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2385/9873/files/fedeworizewisunese.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3506/5505/files/73595696047.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4916/5734/files/pefamalukeba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2119/7735/files/74778054748.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8889/6415/files/git_sparse_checkout.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6894/7616/files/33909485951.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1135/8372/files/dapowulokuno.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8291/6767/files/probability_sampling_journal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4325/0588/files/benozexufarif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9662/7616/files/curves_cancellation_letter_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2013/2247/files/29582241748.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9495/0556/files/67058040023.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1708/3803/files/kelajase.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 4

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_off0000cee4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEE4 5700 bytes
SHA-256: 84d5c1f41a802dc41023e66268805e1671474ac6e444f8115cee0b4982a6180a
font_01_sfnt_off0000e273.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE273 15236 bytes
SHA-256: 9fdd8c7f7ad9adee70aa66d6f7a33738559f48d420c37b7f8c254e7ed0381462

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