Malicious PDF — malware analysis report

Static analysis result for SHA-256 bcdb95835c7ccd93…

MALICIOUS

PDF

44.9 KB Created: 2020-08-14 20:42:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7a254761cb8b885812325f6e40edcd6a SHA-1: f05699ed11786cf5db4445d44e47365ca793face SHA-256: bcdb95835c7ccd93046571dcde090a9879e6be8db6fa19c2a45dbb3744f54350
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a lure for a 'Hades star mod apk' and includes a critical heuristic firing for a malicious redirector link. The document body, though heavily obfuscated, contains the malicious URL and several other PDF links, some of which are hosted on benign platforms but others are unknown. The primary malicious URL, https://ttraff.cc/pify?keyword=hades+star+mod+apk, is used to redirect the user to potentially harmful content. No scripts were extracted from this sample.

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.
  • 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.
  • 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=hades+star+mod+apk In PDF document text
    • http://files.matthewshirrell.com/uploads/1/3/1/1/131164460/3139280.pdfIn PDF document text
    • http://sonimiw.visitsolonsprings.com/uploads/1/3/1/4/131452903/5b95211f544.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/1/0431/2308/1378/files/the_beatles_all_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7251/1386/files/86640666228.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7300/3939/files/mcdonalds_training_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2520/2332/files/cc_road_construction_procedure.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1139/8039/files/cuchillo_artesanal_fabricacion_paso_a_paso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xekugoxozeritazol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5911/6182/files/balaclava_pattern.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9118/8117/files/classification_data_mining.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6529/4504/files/ansiedade_autocontrole_augusto_cury.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6187/9719/files/100_adjetivos_en_ingles_y_espaol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7356/7901/files/vonidadok.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005e8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E8B 5096 bytes
SHA-256: ea7283e7be5cd09389478537e01c5c45dcacfd74297fc9a55bcb633cebade50f
font_01_sfnt_off00006fc6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FC6 9864 bytes
SHA-256: 753bb99fbc91b4b00872fcd65a9084238a377c77605ccbc293b797fbb0563847
font_02_sfnt_off000091c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91C3 16160 bytes
SHA-256: 9ffc405fbed68b1ed35cf25504b2a045b5802e2074cf99e6920a228075e829fc