Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0b110df82c250f6…

MALICIOUS

PDF

53.7 KB Created: 2020-07-31 21:58:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b96902139e5b2400241fec8905947f7e SHA-1: f026545c332011ce21e61a7968a031fa39951d4f SHA-256: d0b110df82c250f6745945a11ef3871511827f5ef8c94973ba7c1b4e29871ffa
194 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by an ML classifier and contains a large number of embedded links, with at least one pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=embedding+image+html', which is likely used to redirect users to malicious content. The presence of numerous links suggests a link farm or a phishing 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.ru/pify?keyword=embedding+image+html In PDF document text
    • http://files.phumelelaproject.org/uploads/1/3/1/8/131857114/buxunogulenozup.pdfIn PDF document text
    • http://files.rosanaourens.com/uploads/1/3/0/7/130776516/pufujizudibe.pdfIn PDF document text
    • http://files.fluoridefreeprincegeorge.com/uploads/1/3/1/3/131398279/jegevob_fewezek_lokudufatemabo_baziweperujen.pdfIn PDF document text
    • http://files.tattered-dragon.com/uploads/1/3/0/8/130813134/sajatik.pdfIn PDF document text
    • http://files.akadeltapsiomega.org/uploads/1/3/1/3/131381078/dubor.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/1/0431/2619/4342/files/81539150030.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4916/4693/files/mowuzedumo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0982/6213/files/40218902387.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8008/9760/files/29828545305.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7396/1125/files/vimujabovonobexamosu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/28821374719.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6302/5567/files/33833647274.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3886/6597/files/48725898891.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0996/5212/files/dezusekononasedoniwox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7808/9878/files/pobipuragimofudozu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7835/2034/files/94356750095.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5150/7112/files/ridapaminif.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 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_off0000734b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x734B 7396 bytes
SHA-256: b8d3e53d76fe4167b61f0bec6ffe7869c0c55de5cfc1f47470bb6668ca31d249
font_01_sfnt_off00008bf7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BF7 5060 bytes
SHA-256: f8c1a72a0a7a3ca63ae0c1471f139f874aa58675c8d6993aeb8bd731faec8fc4
font_02_sfnt_off00009d0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9D0A 14204 bytes
SHA-256: 3d05d4443cd3a2202faca84aff580d2e641fe82d91c4adfb9171345f08a3c6d9

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