Malicious PDF — malware analysis report

Static analysis result for SHA-256 2adbb7707964aa1a…

MALICIOUS

PDF

42.3 KB Created: 2020-08-04 22:54:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0c4e1a063ecd8fb7ab9595da7a691e19 SHA-1: f4a7b0140fe91674546c9abae7e8e39adc6ca0c8 SHA-256: 2adbb7707964aa1ad99ac094df5f62f7b4c7ae1f3edb2bb5d6aa31512bb98e19
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one prominent URL pointing to a redirector service that is associated with malicious activity. The document body, though partially corrupted, includes the text 'Cartoon drawing book pdf free download' and the same redirector URL, suggesting a lure to download content. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' directly indicates the presence of malicious redirection infrastructure. The ML classifier also strongly flagged this PDF as malicious.

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=cartoon+drawing+book+pdf+free+download In PDF document text
    • http://files.kahaboutique.com/uploads/1/3/0/8/130814758/d3913f110297095.pdfIn PDF document text
    • http://files.cceheadgearplus.com/uploads/1/3/0/7/130738652/7428122.pdfIn PDF document text
    • http://files.tinforestfarm.com/uploads/1/3/1/4/131438490/tefavemisonirut.pdfIn PDF document text
    • http://files.tatasuksesmandiri.net/uploads/1/3/1/3/131380717/titobanotesubug.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/1/0428/5097/5910/files/18695844222.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6936/5654/files/nh_dmv_forms.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2816/0420/files/8639111981.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7061/1871/files/97216648998.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7628/0729/files/molixawaxuritawudemupove.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8916/4440/files/xovufa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6929/0149/files/pulekejafesatukixibizuzi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9474/6023/files/guwujeretutebo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4170/8453/files/velix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3127/3365/files/dowebipiwoja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4764/1511/files/37017639505.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4842/5889/files/turitex.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 7

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_off00006864.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6864 5232 bytes
SHA-256: 6fad8bd0c30620de35745c6eaa25231f2796d4c129d2e5d112d27416ceca5cd4
font_01_sfnt_off00007a56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A56 9744 bytes
SHA-256: 0e16e7e0b90dea04203155119563502e989e134b0f457d1f081b7ef3eae4486a

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