Malicious PDF — malware analysis report

Static analysis result for SHA-256 85b9237225aadfe3…

MALICIOUS

PDF

42.7 KB Created: 2020-08-25 16:31:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ce4e301ba02a5eb1041ce6b001b0c834 SHA-1: 6725d09960d50a1e3974638627f244ea4716572b SHA-256: 85b9237225aadfe3bfb3ae729f1f6bb73a86bdac016f4b04ea4f4dcead692450
242 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple heuristics indicating malicious redirection and link farming, including a critical finding for a PDF redirector link. The document body, though heavily obfuscated, contains the URL https://ttraff.cc/pify?keyword=cyber+crime+report+in+nepal, which is also flagged by heuristics as a malicious redirector. This suggests the document is designed to lead users to malicious content, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 7

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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=cyber+crime+report+in+nepal In PDF document text
    • http://files.justaskmigration.com/uploads/1/3/1/6/131606125/lakejejenevexe.pdfIn PDF document text
    • http://suzizebuk.lemieuxchihuahuas.com/uploads/1/3/2/6/132695540/30a109e0b8ec3.pdfIn PDF document text
    • http://files.increaseministries.com/uploads/1/3/0/7/130776485/3556119.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/1/0435/7190/4673/files/waximezuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2875/0241/files/happy_birthday_flower_images_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9838/3260/files/relilasokivamizorosub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2026/9221/files/agnostico_definicion.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4388/7016/files/lithium_ion_battery_construction_and_working.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4798/5053/files/riladi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5161/3336/files/notifezusowotinogimamevus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8008/9760/files/93742840789.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4597/6224/files/honda_pilot_owners_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9579/3571/files/petiwomujipifafirusuzodo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tokon.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_off00006908.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6908 5048 bytes
SHA-256: 9cfd0790cc973bf77985c68f3a66c53bd30aa09135325357e702ae6ae9385a61
font_01_sfnt_off00007a16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A16 10620 bytes
SHA-256: f0409f0db94d4b70d0673478ac4d0875942ac53005d6c8d7401ea839de35f40a