Malicious PDF — malware analysis report

Static analysis result for SHA-256 56831bc0285d7f4e…

MALICIOUS

PDF

49.4 KB Created: 2020-08-19 03:43:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 958e2527c7f4e1e29d3d67fdfe2b7f01 SHA-1: 5c4d76c3bb24ec4e61c938b1d29b6bbf521016b1 SHA-256: 56831bc0285d7f4e16bbda076ee8b83590b3fb5a806c252b10074387669399f0
194 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it points to malicious infrastructure. Additionally, PDF_SEO_LINK_FARM suggests a large number of external PDF links are embedded within the document. The primary malicious URL identified is https://ttraff.com/pify?keyword=bahamut+lagoon+snes++english, which likely serves as a lure to a phishing or malware distribution site. The document body contains garbled text but also includes the malicious URL and several benign-looking Shopify URLs, suggesting an attempt to disguise the malicious intent.

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.com/pify?keyword=bahamut+lagoon+snes++english In PDF document text
    • http://files.whispersofthedarkmoon.net/uploads/1/3/1/3/131378771/a797eb9.pdfIn PDF document text
    • http://seken.merriemoore.com/uploads/1/3/2/7/132740285/5c7790d68.pdfIn PDF document text
    • http://files.parkcitybrewery.shop/uploads/1/3/1/3/131383982/zitiputeziwelib.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/53940391871.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8482/3205/files/72880608662.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1405/4300/files/kepobirivenididezun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5557/1356/files/56019025028.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9423/5553/files/9630683972.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0231/3373/files/59163033130.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3649/0398/files/5778478102.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3249/4751/files/xosafi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6510/6847/files/nabofirufezagu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9311/2472/files/wogurefibovatolutapuzuruv.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_off00007471.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7471 3824 bytes
SHA-256: 8e6d512765792ac87b3cfa983cec0b15c848d810ce00e881c974e6b376b0d5ac
font_01_sfnt_off000081d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81D0 5052 bytes
SHA-256: 2b0d3c6ca306e2d8f07cf93eeeaf02c8196b4cb4e85c1a87312a7357525a92d1
font_02_sfnt_off000092e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92E2 10556 bytes
SHA-256: 61d55399de3b55ecab780164e64767d684105220e062a130a56e82f302d32b8a

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