Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8a677b30d40aeb3…

MALICIOUS

PDF

44.1 KB Created: 2020-08-06 14:50:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e0950be9b0a3aaa8be2a164361647fd1 SHA-1: ed4065e215e0faab2009829b878a9f4dfd48f1f1 SHA-256: d8a677b30d40aeb3d0465ea3e300a41e5f3898e7fa822de21ba58fc1617cef56
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with one identified as a malicious redirector. The ML classifier also strongly indicated maliciousness. The document body contains obfuscated text and multiple URLs, including the redirector https://ttraff.cc/pify?keyword=avertebrata+laut+pdf and a link farm hosted on cdn.shopify.com, suggesting a phishing or spam distribution scheme.

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=avertebrata+laut+pdf In PDF document text
    • http://files.jennifergallagher.com/uploads/1/3/1/3/131382030/kejeferubiluzo_fazorinoleroz_zusavowemuxit_fegujumi.pdfIn PDF document text
    • http://files.sharpiepresents.com/uploads/1/3/0/7/130776823/4fb77ac75e466d.pdfIn PDF document text
    • http://files.stagewithstyle.com/uploads/1/3/0/7/130740521/a262e.pdfIn PDF document text
    • http://files.shopleatherarchives.com/uploads/1/3/2/6/132682913/gabusu.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/1/0428/0185/6668/files/wiwupowelilekumimisamoxaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3802/3592/files/19413217480.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8334/7606/files/beginners_english_questions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1048/2588/files/fivekarijex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7454/1981/files/metronidazol_suspenso_bula.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7003/7924/files/4987010021.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5622/5688/files/pozaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6382/6849/files/19776696937.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9065/4885/files/area_and_perimeter_of_2d_shapes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1447/0302/files/beitz_the_idea_of_human_rights.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rasamonuje.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 5

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006e84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E84 5048 bytes
SHA-256: 6d8d30989d66ac619edbfd1a2944754e233b2b9e6946831b463e9569ed7cbdcd
font_01_sfnt_off00007fc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FC4 10800 bytes
SHA-256: fee0b790e8b46dd36aac4e6ac8cf439dc2cd0c270a26aeddcd7ea6c1ae1212ef

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