Malicious PDF — malware analysis report

Static analysis result for SHA-256 0dbcab70ab945000…

MALICIOUS

PDF

37.5 KB Created: 2020-08-12 23:15:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d0692fb7f3311bd8cabb1cba3722d1f0 SHA-1: 01b0be31f16265f791db1769d54b65381d1f2736 SHA-256: 0dbcab70ab9450008037470d7b5c7499267d97b4a119fe30768109f34f608dec
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a specific redirector URL, indicating a phishing or scam attempt disguised as a free download. The ML classifier strongly suggests maliciousness. The embedded URLs are designed to lead users to potentially harmful content, likely for credential harvesting or malware distribution.

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=curriculum+design+volume+1+pdf In PDF document text
    • http://xitakabu.registry20.org/uploads/1/3/1/4/131410007/lidikab_mofaja_ninexibuvifani.pdfIn PDF document text
    • http://files.ikargb.co.uk/uploads/1/3/1/4/131409170/c416f2d8c877.pdfIn PDF document text
    • http://nugowi.ovingpc.com/uploads/1/3/0/7/130739835/2d62f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5039/2984/files/lejajokimu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3231/9912/files/rti_amendment_bill_2020_upsc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1458/6517/files/astral_projection_complete_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7369/1045/files/kenmore_sewing_machine_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7796/7778/files/kirofufitanofoweke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4391/2856/files/92491007186.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0622/9654/files/visodavasuki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5276/9192/files/xutuvezin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1266/1152/files/ccrt_for_upsc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1278/4277/files/mysql_command_line_cheat_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2962/6017/files/vosumeva.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
    • http://www.gnu.org/licenses/gpl.htmlIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000045ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45AE 5284 bytes
SHA-256: 5377d91275a7e3198ec7644f1f3d2fa1bebd0628ed238fe12096a0d27c5fba82
font_01_sfnt_off00005790.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5790 6068 bytes
SHA-256: d8e4b7f44dfb66ea49c7f1cefd345a391fade3fb548cc17de4cdbf151663dabd
font_02_sfnt_off00006740.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6740 9884 bytes
SHA-256: 3c79535e26a7244447e8c945dad68b3929d2aa5e3e067667f75f55559dfb9ad3

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