Malicious PDF — malware analysis report

Static analysis result for SHA-256 d120e807c7d22949…

MALICIOUS

PDF

68.3 KB Created: 2020-08-10 12:57:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2d01371fa520ff34eeb1ae3e5b3c174d SHA-1: 08dace31355f1a0bdb921215d2d06c779ee6820b SHA-256: d120e807c7d22949b56e58b4d1e21e36e9869381dfeb9bac4f0db83dbc76d432
194 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, specifically pointing to 'https://ttraff.cc/pify?keyword=effective+java+3rd+pdf+github'. This URL is presented within the document body, disguised as a link to a PDF related to 'Effective Java 3rd edition'. The presence of a large number of external PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning attempt to drive traffic to malicious sites. 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=effective+java+3rd+pdf+github In PDF document text
    • http://files.seetheworld.tours/uploads/1/3/2/8/132815961/bawifutopite.pdfIn PDF document text
    • http://files.nhsoulstudies.com/uploads/1/3/0/8/130814032/8347026.pdfIn PDF document text
    • http://posirumu.jeminisbazaar.com/uploads/1/3/0/7/130775350/dimolila-joseledujit.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/1/0431/8570/1025/files/characterization_activities.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2651/4077/files/bopoweruroligi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8865/0135/files/sozerobipujejisodevozomi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0081/2952/files/xiwuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7473/9607/files/66130285978.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0426/4602/files/telokawukikotenubi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6459/7397/files/liranokunotitimasukixozo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6302/5559/files/73752872910.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6340/2905/files/54311896357.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5127/0823/files/59255807748.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6486/0575/files/92974316863.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5921/6537/files/probiotics_in_poultry_nutrition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6797/2515/files/76013652447.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3205/1873/files/24965941485.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2352/4259/files/ritaxibivobaveso.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_off0000c010.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC010 5604 bytes
SHA-256: 3826247985cfdceb0da8001131ea9283e965082ed0d77b84d53cfc8a022f5ba2
font_01_sfnt_off0000d32f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD32F 15472 bytes
SHA-256: 2ad2455f70ce9201c2c00314c57e0e50dce706bfc627365f2f45f497f9f6da0c

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