Malicious PDF — malware analysis report

Static analysis result for SHA-256 a02878166e68f6a0…

MALICIOUS

PDF

161.4 KB Created: 2020-08-18 17:33:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 93ee9339cc3c19bbfaf264b26f2acfe1 SHA-1: 65bd34397e491534e8e7d7295ddb499f199207c8 SHA-256: a02878166e68f6a0cd7f08066795ed65f47ea4445a0c1cfdf0425bcd84bcb24a
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a heuristic firing for a malicious redirector link pointing to 'https://ttraff.cc/pify?keyword=antimatter+dimensions+infinity+challenge+5+guide'. The document body, though heavily obfuscated, also contains this URL, suggesting it's the primary lure. The heuristic 'SE_URGENCY_LURE' further supports the idea that the document is designed to trick the user into clicking the link. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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.
  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=antimatter+dimensions+infinity+challenge+5+guide In PDF document text
    • http://files.wirralairporttaxitransfers.co.uk/uploads/1/3/0/9/130969768/4230468.pdfIn PDF document text
    • http://tejawo.cravenweddings.com/uploads/1/3/2/6/132682883/wefepelukoteki-ladileduxopofu-suvedo.pdfIn PDF document text
    • http://duwene.katiegreenedoulaservice.com/uploads/1/3/1/4/131437756/fixutisilodi.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/1/0431/4356/1376/files/9227113874.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4357/0343/files/rt-_n66u_tomato.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2585/8711/files/absite_review_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7460/0598/files/97563602941.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1335/7211/files/fisher_iris_data.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8165/3655/files/gewipojelodep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7931/8166/files/57843800497.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0569/6409/files/rorafamuberirip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4886/9786/files/67632519082.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1604/5222/files/d130_john_deere.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7808/0925/files/refopasidavubuvev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5415/4406/files/wigorajoginixesado.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn 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_off00022191.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x22191 5652 bytes
SHA-256: 3b6f3076f77b57cdf95ac3c94fffa8712cf5652beff41e836c78a1b3fafd95b9
font_01_sfnt_off000234a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x234A0 14344 bytes
SHA-256: 8469d018f3591309b0362a210050025af9a9c09dd3159f6ee5a4e3678f09bff5
font_02_sfnt_off000261c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x261C3 16296 bytes
SHA-256: 21d2c517cc0d2781f643886744ab2248bbe8d92ed1ab736cc2ad748918d5c6f2

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