Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb6cb4912f3f7bc5…

MALICIOUS

PDF

42.5 KB Created: 2020-08-23 11:33:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 89224ae5c45ce1b8750e2c732484e2d3 SHA-1: 9e32816c04a65aa087ac2e5cd05961c23f5f34eb SHA-256: bb6cb4912f3f7bc560c8fa76e85c5ff35ea2e32fcee6e63cb273d6bc42f74c8f
194 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, many of which point to external PDF files hosted on various domains. One critical heuristic identified a link to a known malicious redirector infrastructure at 'https://ttraff.cc/pify?keyword=bracketing+camera+app+android'. This suggests the document is designed to redirect users to malicious content, likely for phishing or malware distribution. No scripts were extracted from this sample.

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=bracketing+camera+app+android In PDF document text
    • http://files.atowncenter.org/uploads/1/3/1/4/131453698/belul.pdfIn PDF document text
    • http://pavujapur.evangelizenorcal.com/uploads/1/3/0/8/130874284/0bdf23b1.pdfIn PDF document text
    • http://files.connectionsonthebay.com/uploads/1/3/1/3/131398140/1b37a3edbd7.pdfIn PDF document text
    • http://files.irentphilippines.com/uploads/1/3/1/4/131407857/1553387.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/1/0433/1008/8360/files/76973660746.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5219/4202/files/quantitative_aptitude_solving_tricks.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6677/8009/files/wonozotowesevakipemenagul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8866/7039/files/78115122083.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4152/9754/files/duxekebafakotenurajasotub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9972/4702/files/nuligavodizutawufek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/baxumedufimoval.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0225/7823/files/new_assamese_video_asomi._in_2019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7379/8298/files/99027314751.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0805/5720/files/how_to_improve_my_english_pronunciation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0009/4112/files/ganuvavupebuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2574/4547/files/leladikunudigeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8937/9993/files/mitugixoxegikebori.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_off000067df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67DF 5296 bytes
SHA-256: fce7cffea45ffef7746a8db81d84d885573122e1227b41861758a435cb671402
font_01_sfnt_off000079c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79C5 10196 bytes
SHA-256: 70691ae275322dca97632e3dab25f3da15e3ee9d9f4928043ec88fda215e663d

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