Malicious PDF — malware analysis report

Static analysis result for SHA-256 b012beb9020899f7…

MALICIOUS

PDF

42.9 KB Created: 2020-08-23 04:22:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 51af0a7c79b4be0931ac148a07a8c4d9 SHA-1: c068bd06dffc9312717070637731c9d9dea36ebb SHA-256: b012beb9020899f73b1d19a9b738a4e322ac201ca7f6aaff6f942ef429f26f09
194 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with a critical heuristic firing for a malicious redirector. The embedded URL, 'https://ttraff.cc/pify?keyword=answer+customer+complaint+letter+sample', is presented as a customer complaint letter sample, indicating a social engineering lure. The PDF structure and embedded links suggest a phishing or scam attempt to redirect users to malicious sites.

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=answer+customer+complaint+letter+sample In PDF document text
    • http://files.angelamorales.net/uploads/1/3/1/0/131070934/wumidatafivobiziwow.pdfIn PDF document text
    • http://tiluwami.plateauvalleyanimalhospital.com/uploads/1/3/0/9/130969627/b893b.pdfIn PDF document text
    • http://files.brisbanedanceworkshop.org/uploads/1/3/1/4/131437615/5717badcb25d3.pdfIn PDF document text
    • http://files.akersart.com/uploads/1/3/2/6/132695732/pupabutejex.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/1/0439/5122/7048/files/xeravax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2011/4331/files/nizakobezekowapoji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7781/1867/files/lunalubumixapuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9726/0192/files/bajep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0036/3169/files/32588032460.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/45366335679.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5381/8790/files/aaos_biceps_tendinitis.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 8

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_off000067d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67D0 5160 bytes
SHA-256: f05bbf6347355068f77d5909b97bd950b24c8c653aebfe40715adcec2c7e6770
font_01_sfnt_off0000794e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x794E 10844 bytes
SHA-256: b64bcf26a249dd335338ce0f474afcf8269d601cc71371601e602926d61a576a

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