Malicious PDF — malware analysis report

Static analysis result for SHA-256 52c33c3af796abff…

MALICIOUS

PDF

42.4 KB Created: 2020-08-07 01:40:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4c1bd4107848a8c618f08bd5f86d443c SHA-1: f5fbaa81c3a8192564f78080465ed0e7a388ea3c SHA-256: 52c33c3af796abffd388dea3db7a9e168447ebd1883adc9f497e39dae4a65584
254 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=aws+console+tutorial+pdf'. Additionally, the document body contains a lure requesting recovery secrets, indicating a phishing attempt. The presence of a large number of external PDF links, many hosted on Shopify, suggests a link farm designed to improve SEO for malicious content. No scripts were extracted, but the primary attack vector appears to be social engineering via a malicious link.

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.
  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • 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=aws+console+tutorial+pdf In PDF document text
    • http://files.hannmfg.com/uploads/1/3/0/8/130813364/4cd82.pdfIn PDF document text
    • http://kapikelox.splaxcustoms.com/uploads/1/3/1/4/131453329/5501635.pdfIn PDF document text
    • http://fixil.realthingspizza.com/uploads/1/3/2/7/132710621/7399904.pdfIn PDF document text
    • http://files.sydneywippman.com/uploads/1/3/1/4/131453902/6bff764.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/1/0439/8376/5662/files/kkfit_bulking_program_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0830/3002/files/kenmore_600_series_washer_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8260/3927/files/excel_applications_for_accounting_principles.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2378/5370/files/17247629001.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0281/3849/files/31462171195.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2970/6390/files/ielts_writing_task_2_samples_general_band_8.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3714/7811/files/mixer_amplifier_speaker_setup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9511/2347/files/59353963307.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5856/9120/files/shield_designs_minecraft.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4302/7106/files/77131141214.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1734/6965/files/moxoxozetoped.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 7

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_off000062b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62B4 5228 bytes
SHA-256: 35424f1a8837f22729c7717a8ed8279659e52d493457dce249e9dbb0f713cc81
font_01_sfnt_off000074a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74A3 14108 bytes
SHA-256: ccb4f4bc91f706cdbf3a4c6a6098467915895f491ba0d422f7dac294bf1f33bb

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