Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ef9b84c90e77d5c…

MALICIOUS

PDF

38.3 KB Created: 2020-08-14 15:37:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 68cd707ee67d4675c1264380ba983228 SHA-1: 2cdfcfed03a1149211b5e714b08d4d1ceedbab08 SHA-256: 7ef9b84c90e77d5c04ee3e0feb11dae6e418160e9c56ebd7c8f2e1fb1b13c4b9
170 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, with a critical heuristic firing for a malicious redirector link pointing to 'ttraff.cc'. This redirector is used in a link farm designed to lure users with terms like 'beta profile ios 13'. The ML classifier strongly indicates maliciousness, and the presence of a download button lure further supports a phishing or scam attempt.

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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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=beta+profile++ios+13 In PDF document text
    • http://files.catmaness.com/uploads/1/3/1/8/131856129/zazawupojugozafob.pdfIn PDF document text
    • http://zaziludav.zeeamerphoto.com/uploads/1/3/0/7/130740141/3939488.pdfIn PDF document text
    • http://files.iambriannna.com/uploads/1/3/1/4/131452735/2257364.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/1/0447/1911/2345/files/tutorial_arduino_espaol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8090/8949/files/91756007916.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7355/1001/files/jurnal_kandungan_gizi_ampas_tahu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6353/1933/files/zibanuburilukulu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0801/6027/files/xijikufupisamosu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8499/7017/files/16955460749.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5832/3865/files/siparudaxub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0513/1421/files/weedeater_carb_adjustment.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 2

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_off00005a1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A1E 5160 bytes
SHA-256: ab04c770eb4ab2e6f18aa6ab1cff4ffc857da38fb70b6d73943ed796e83c4912
font_01_sfnt_off00006bbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BBE 9748 bytes
SHA-256: 0e273cab58e1681bbfce133a7d6810972067680cfbc34df2746b6c936d16d0cd

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