Malicious PDF — malware analysis report

Static analysis result for SHA-256 862e6a5f00d302a0…

MALICIOUS

PDF

80.6 KB Created: 2020-08-12 00:11:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b0017b980a1eeb0d9c4f7e9d7871c18e SHA-1: 87a89b7143a068a6a367053aaa1e2250e9839333 SHA-256: 862e6a5f00d302a0a3a143c1faed261c4e11c4a72378f55d05f8811a010c482b
230 Risk Score

Malware Insights

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

The PDF contains embedded JavaScript and multiple links, including one to a known malicious redirector (ttraff.cc). The document body and heuristics indicate a lure for a 'free download' which likely leads to a phishing or malware distribution site. The presence of embedded JavaScript and the redirector link strongly suggest an attempt to compromise the user.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 8

  • 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.
  • Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
    A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=list+of+synonyms+and+antonyms+with+urdu+meaning+pdf In PDF document text
    • http://files.pediatrictouch.com/uploads/1/3/0/8/130814749/bitoxulusazuxam.pdfIn PDF document text
    • http://zebezaw.craigcommercialrealty.com/uploads/1/3/0/7/130740434/936fdd83.pdfIn PDF document text
    • http://files.noahsacksteder.com/uploads/1/3/0/7/130738991/18d340dd4e.pdfIn PDF document text
    • http://delidesob.adamgormley.com.au/uploads/1/3/1/8/131871390/0f64233f.pdfIn PDF document text
    • http://fedorahosted.org/lohitIn 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/1/0430/8202/3061/files/vakebef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9524/4452/files/cambridge_dictionary_english_french.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7374/7609/files/lekotevirul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5561/2058/files/57085429046.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8643/8807/files/32411756747.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0413/3525/files/franchise_agreement_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3127/2346/files/tubabamadewiteve.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1731/2152/files/46810034022.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0820/4701/files/kepedagijagaganeziwoxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0453/2230/5691/files/kufujixafaboz.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
stream_005_off00010868.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x10868 14700 bytes
SHA-256: afaca013b5a0e8b7007bb3abd8c31af3faa2feb74a3545f62008c22b6af46ffb
font_00_sfnt_off0000cb14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB14 5556 bytes
SHA-256: ab2a5e863c1d92a65d1537a80c3aeb714292a79372c569603d0f08c96d06972f
font_01_sfnt_off0000dde2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDE2 13416 bytes
SHA-256: b2c9389d4e32be8ddb757af027d523739d26b6eb96e35459728c4f9d14fc49d3