Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa09bddd6d630b51…

MALICIOUS

PDF

117.8 KB Created: 2020-08-08 11:32:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7247f220d312ad4c4e184e46f85784d9 SHA-1: 2a3e4ab752ac27d0193472dbfb5f0b9a689d9fd0 SHA-256: fa09bddd6d630b511ba189fa25be76e2782a4c8f8fcc9428f638a362b71f3f89
222 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a known malicious domain, indicating a phishing or redirection attempt. The document body, though heavily obfuscated, contains a URL that mirrors the one identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The presence of multiple benign Shopify links suggests an attempt to blend in with legitimate content while masking the malicious redirector.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 7

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/wb?keyword=human%20resource%20management%20tamil%20pdf%20download In PDF document text
    • http://files.seasprayaustralianlabradoodles.com/uploads/1/3/2/7/132740327/4200357.pdfIn PDF document text
    • http://judepi.amarts.info/uploads/1/3/1/8/131857920/7634813.pdfIn PDF document text
    • http://files.okaybeatz.com/uploads/1/3/1/3/131383771/jotunofafuvawasazini.pdfIn PDF document text
    • http://files.kingdomdetail.com/uploads/1/3/0/7/130739621/e1e76.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In 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/1/0430/7773/0464/files/30071850163.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9726/8128/files/logub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7369/2063/files/comparative_superlative_adjectives_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6350/9143/files/98729104167.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4933/7500/files/9030364784.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6443/5612/files/93418495257.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8005/5958/files/casual_vacancy_book_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5072/9634/files/22993316315.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3393/6547/files/61825935786.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4972/2790/files/29515763502.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6808/7701/files/66731094135.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001893b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1893B 1880 bytes
SHA-256: 6e34afabfa262f3f0fdec9a5f422a3b324b904f1acb1dd2a395c60a063052799
font_01_sfnt_off0001925f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1925F 5528 bytes
SHA-256: a4c73e7b0a751de5e8797d1318b31bb6f77e64acb3dcf55b0de144301c8f104a
font_02_sfnt_off0001a520.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A520 10884 bytes
SHA-256: 038e78ecf54cfe47b02b3c746faa54c726a2cf7033903056cb375620ea73fe00