Malicious PDF — malware analysis report

Static analysis result for SHA-256 427e79bc1e944e2f…

MALICIOUS

PDF

45.4 KB Created: 2020-07-31 12:08:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a371ca1c95e9760557a7ab82b381367b SHA-1: e8ea2849824a6095252cff239bc24bac04565620 SHA-256: 427e79bc1e944e2fdd96bef5237a47e97b531cf230646719dd749be0b3e0ebe2
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits a PDF link farm heuristic, embedding numerous external links, many hosted on Shopify. One of these links, 'https://cdn.shopify.com/s/files/1/0433/0687/7080/files/munuzajutajamarigeregutoz.pdf', is identified as a potential entry point for the malicious workflow. The document body, though heavily obfuscated, contains text related to 'Computer awareness capsule' and 'bankers adda', suggesting a lure for potentially sensitive information or further malicious actions.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • 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.com/pify?keyword=computer+awareness+capsule+pdf+bankers+adda In PDF document text
    • http://files.usveteransmcma.com/uploads/1/3/2/8/132815015/mezerekuwafut_duzoriwipoko_kiliraw_koledazudoxur.pdfIn PDF document text
    • http://files.greenmannurseries.com/uploads/1/3/1/4/131408620/fivedoje.pdfIn PDF document text
    • http://files.olgaklosowski.com/uploads/1/3/0/8/130813714/rinezi.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/1/0433/0687/7080/files/munuzajutajamarigeregutoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4338/9597/files/ruzade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6776/8981/files/39065311820.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6423/7992/files/boxujevabukipipirufogo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8808/5143/files/kifujegolavanovowukowizo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0436/2906/files/530429926.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8396/4324/files/7303046015.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5228/3542/files/pugawivekakurizeres.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4016/2467/files/22606701366.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4764/1511/files/15805195770.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3464/6440/files/tadilomifasasudaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7537/1162/files/xusalolakoliluwula.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2019/7789/files/fowajijer.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007297.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7297 5456 bytes
SHA-256: a6567503236453fc6196c6009a6ce51fa709ad8a86b4eae4b03b4e9bebc09be8
font_01_sfnt_off0000851c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x851C 10196 bytes
SHA-256: 3d821ebda3b03f96e3b6c645b47c51d19f3a41faa0612cbfbf323db1d81ac4f1