Malicious PDF — malware analysis report

Static analysis result for SHA-256 b01a2094b772c160…

MALICIOUS

PDF

45.8 KB Created: 2020-08-10 20:40:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 56cd3a099f3e61571dfbbe3dfb0d4e52 SHA-1: 61c398ff605dded6d1e15e90e820241c1080c54c SHA-256: b01a2094b772c16014611f4bd8a283a4493cfdf93fdd695a6e15d2c7d50c0841
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic indicating it links to known malicious redirector infrastructure. The document body, though partially corrupted, contains a URL that is also flagged as a malicious redirector. This suggests the primary goal is to redirect the user to a malicious site, likely for further exploitation or phishing. The presence of numerous other links, many pointing to Shopify, indicates a link farm strategy to obscure the malicious destination.

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=bsc+1st+year+chemistry+notes+in+english+pdf In PDF document text
    • http://files.ms-j.org/uploads/1/3/2/7/132740685/6401768.pdfIn PDF document text
    • http://files.lisamariamadera.com/uploads/1/3/1/0/131071240/8241466.pdfIn PDF document text
    • http://files.urbanity.ca/uploads/1/3/1/3/131398129/tenutugagevipalu.pdfIn PDF document text
    • http://files.onesailorsjourney.com/uploads/1/3/0/9/130969494/zimojujugevawig-pizapakiki-pokaxibajik.pdfIn PDF document text
    • http://files.drawingdecentered.com/uploads/1/3/0/8/130874359/dofikijupikuvaj-sazedesisumu.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/1/0431/2036/1629/files/63536883675.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3546/7682/files/carillas_de_resina_directa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7512/5919/files/19527828365.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4924/6110/files/69219923429.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5863/4650/files/kagepasosoxarewavoguv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3122/2677/files/gugemava.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1901/7124/files/56652013673.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2285/9944/files/10402605212.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3976/9254/files/64867965495.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_off000069de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69DE 5772 bytes
SHA-256: 8cff285eb3bb30ad1de5da23adcccdc00814d0ae6c851bbd1f702639af0c1644
font_01_sfnt_off00007d65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D65 1800 bytes
SHA-256: e9a5a1f6ed95b1e3669933bb00002ad32a1708c3e0b735191cad5e02368a6c7d
font_02_sfnt_off000085f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85F3 10516 bytes
SHA-256: 6c06495a3cded97ee6b1943034c0b8f343c6e36639e2b180c8c3c6d43931d766