Malicious PDF — malware analysis report

Static analysis result for SHA-256 508f08645578d469…

MALICIOUS

PDF

42.7 KB Created: 2020-07-25 16:53:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 49e5802c75ec4fa5bbd2c400a6fcb17e SHA-1: df187a4542b5c420858e90d9fe06758146dbd5fb SHA-256: 508f08645578d46984fcc2d2fc33573c969ebe3008c0815611751e4223000a76
194 Risk Score

Malware Insights

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

The PDF document contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=game+counter+strike+apk%252B+data'. It also contains a PDF link farm heuristic, with numerous links hosted on Shopify. The document body, though heavily obfuscated, contains text related to 'Game counter strike apk data', suggesting a lure for users interested in downloading game-related files. The primary malicious IOC is the redirector URL.

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=game+counter+strike+apk%252B+data In PDF document text
    • http://files.rogueandfoxfloral.com/uploads/1/3/2/6/132696233/6b4f312.pdfIn PDF document text
    • http://files.splashpaintingandwine.com/uploads/1/3/1/8/131871814/1450637.pdfIn PDF document text
    • http://files.thehivepto.com/uploads/1/3/0/7/130775665/924aaab7fc284.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/1/0428/5713/6294/files/90599462368.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9587/5989/files/95768109197.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3526/3138/files/jadojitukuvozu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rewosegukedisupagur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9026/4742/files/gadikazarajawab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/20597849085.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6483/6764/files/pexuza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2640/7843/files/xojofajaximuru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9427/8293/files/fisofar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1618/3205/files/64155466857.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6871/0309/files/36002063750.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1537/2953/files/larokadujamebajabuvenero.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6480/2982/files/lilafutakigapapuxojom.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_off00006b11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B11 5164 bytes
SHA-256: a8196002ba00241624b62206039a7007220914395748ae6d6d4935a26df7371c
font_01_sfnt_off00007c88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C88 9792 bytes
SHA-256: e367a3be28852bad354c84abfe4c62ca0eb0d7009f3907a2a2720d8b297591b6