Malicious PDF — malware analysis report

Static analysis result for SHA-256 f101a4d11fedf92f…

MALICIOUS

PDF

53.1 KB Created: 2020-08-21 18:22:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 36177301cd393be80a918b45b90888e5 SHA-1: ded953b9086063c21b2dd99e7cfe41309e7b39d3 SHA-256: f101a4d11fedf92f33e82cfc8c63d91d012327ec4f8bd158fe3e6adbf69c816c
194 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.cc, which is designed to lead users to malicious content. The document body, though heavily obfuscated, contains the URL and a title related to Abraham Maslow's hierarchy of needs, likely as a lure. The ML classifier also strongly indicated maliciousness. The primary attack vector appears to be social engineering via a malicious link embedded within the PDF.

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=teori+hierarki+kebutuhan+abraham+maslow+pdf In PDF document text
    • http://files.worldofmicrobiology.com/uploads/1/3/0/8/130814666/9750202.pdfIn PDF document text
    • http://files.swastikpearls.com/uploads/1/3/0/7/130775732/353b79ba0.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/1/0435/1839/4523/files/megaman_x_rom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8484/7006/files/mofitezuvadikakituwi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8716/7637/files/tolojuvivupare.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9934/0448/files/memizetexevexomumapadonev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9177/2063/files/16845271000.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/30036161276.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8831/3510/files/kvs_admission_form_2019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6534/3126/files/17757576900.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4745/0789/files/22359209316.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7426/4996/files/10250052369.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_off000092b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92B2 5528 bytes
SHA-256: 862a06a6fa033708078e7f92798a27abb960383074a29cb6a1ebdde190ab7bfa
font_01_sfnt_off0000a559.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA559 9880 bytes
SHA-256: cc2a44b23fc9580ea3b858f56109fb0912b6f5e311ba82d5109a6f06dabca6d3

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