Malicious PDF — malware analysis report

Static analysis result for SHA-256 bdaf3cc62ebace6b…

MALICIOUS

PDF

40.5 KB Created: 2020-08-03 17:44:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 28221363aeb19ee6c53a5f1015e95c04 SHA-1: 5cc4578e6ec63f9ca760ec00fab880432677749d SHA-256: bdaf3cc62ebace6bdd7c01b82892f189cfca9bae1ce7309bef529338ca916d32
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service known to host malicious content. The document body, though heavily obfuscated, contains a reference to 'Android os features pdf' and a URL that appears to be part of the redirection chain. This indicates a likely attempt to drive traffic to malicious sites, potentially for phishing or malware distribution.

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.cc/pify?keyword=android+os+features+pdf In PDF document text
    • http://files.twistedtreeyogaroom.com/uploads/1/3/2/6/132695734/raxumobodubigake.pdfIn PDF document text
    • http://files.nintaipartners.com/uploads/1/3/1/4/131454207/9581644.pdfIn PDF document text
    • http://files.fortlincoln.org/uploads/1/3/0/8/130874588/1e019.pdfIn PDF document text
    • http://files.tsmseniorcenterassociation.com/uploads/1/3/1/3/131380005/c04b1c8c.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/1/0429/8833/9354/files/16434151998.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5123/7022/files/tikefarerubunexejujim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2068/1369/files/derojimasovuraxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5259/6374/files/bisadavuzoworakezilano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5951/9394/files/89552083639.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7792/7072/files/how_to_use_count_in_python.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dogazuzotefoninu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9544/8997/files/68356793009.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0673/0144/files/manuwasezedixetiju.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

Related samples 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000626d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x626D 4992 bytes
SHA-256: e9e3e3256d276cdcda83f57e34a9ac21579e98dfb7d55dbd6e014e4a4ef3603e
font_01_sfnt_off00007379.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7379 9992 bytes
SHA-256: 4bcb7b22b719d5fa32c65556793919213bfef6fcb8666a5573c30bdf5272726f

Open this report in the interactive analyzer, or submit your own file for analysis.