Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b6f47c4d3d23688…

MALICIOUS

PDF

44.0 KB Created: 2020-08-21 11:52:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ce86ca2407a7c40f180cbb3264ad5d5f SHA-1: 48ca104d6b7c43bd5bad86b2daa0a94d6875b4a3 SHA-256: 8b6f47c4d3d236889f11d0d01ae926f2efb30edccb9c3cbaf2dd81c6d1574d65
214 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector infrastructure, suggesting a link farm or phishing lure. The presence of a callback lure heuristic indicates a potential for social engineering. The primary redirector URL, 'https://ttraff.cc/pify?keyword=android+obd2+gauges', is likely used to funnel victims to malicious content or phishing pages.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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=android+obd2+gauges In PDF document text
    • http://rozowob.3wheeldriveonline.co.uk/uploads/1/3/1/4/131409090/rixibesonax_polakomejinuko_rigab.pdfIn PDF document text
    • http://sujog.verateschow.ca/uploads/1/3/1/0/131071164/safijulexiji.pdfIn PDF document text
    • http://files.colchestertri.com/uploads/1/3/1/4/131437834/6bfe2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2221/9421/files/arora_computational_complexity.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8580/0358/files/xolikon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2672/7580/files/33831033057.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/5539/9331/files/motawanoporolilekemofu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9201/6280/files/alban_berg_lulu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2574/4547/files/razafowotibaveba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0464/9884/files/43554098522.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6972/5080/files/89341108988.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7689/5398/files/11859075576.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5879/7471/files/20099448711.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4852/5206/files/71695204000.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1841/0394/files/byod_security.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006131.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6131 5024 bytes
SHA-256: a3deb1d1d66743e2372670e83a301f1f5b8c566aa89bd6dfcbd01d977d6a6e2f
font_01_sfnt_off00007239.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7239 10172 bytes
SHA-256: 9a7472002552b597bfeabde398a90d26d9ff86416eb2535ba3e20e33f80fe410
font_02_sfnt_off0000950e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x950E 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e