Malicious PDF — malware analysis report

Static analysis result for SHA-256 707723204f23302e…

MALICIOUS

PDF

43.6 KB Created: 2020-08-24 17:11:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3870cc11569577019725f2255c33a3f4 SHA-1: d3b444020948180a159f3b164bbc86b4fdfd3315 SHA-256: 707723204f23302ebc151cbaef08ffca3fe0e829b3bfc724fb922766234f56d3
242 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links to external resources, many of which are algorithmically generated and point to potentially malicious infrastructure. The document body and heuristics indicate a lure for free templates, which is a common phishing tactic. The presence of a malicious redirector link suggests an attempt to funnel users to a malicious payload.

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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=free+word+document+letterhead+templates In PDF document text
    • http://nopirapo.artfulcatholic.net/uploads/1/3/2/8/132814194/3896073.pdfIn PDF document text
    • http://ziwopexi.westmeadhospitalwhistleblowers.com/uploads/1/3/0/8/130813669/f5b2b9070b.pdfIn PDF document text
    • http://sajokij.safespaceamerica.org/uploads/1/3/2/6/132681352/turowepisosib_ginala_ginowopo_wiwip.pdfIn PDF document text
    • http://files.klahyatt.com/uploads/1/3/2/7/132712034/30ce12eb75349.pdfIn PDF document text
    • http://gajopuz.rohrbachsfarm.net/uploads/1/3/1/0/131070374/dowimula.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/1/0427/5650/5756/files/kiwolarusir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2861/9168/files/bulojosovave.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/welilavuruwad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0958/8897/files/taladro_bosch_gsb_550_re_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4778/6398/files/aptitude_test_for_class_9.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1671/6437/files/isometric_view_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6988/8920/files/clownfish_care_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7365/9290/files/tejafowaxirugu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2206/5557/files/jelovitajepabil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6040/3103/files/gobalu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2436/7262/files/xubabadumuwifuxubu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2468/7014/files/salvation_army_valuation_guide.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
🗂 Part of campaign: ogdenpediatrics.org 7 samples

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006dcc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DCC 5360 bytes
SHA-256: c10a2827430031d08aa20c8bd3e7a315fa9014f57cbc857eb05af84905a4efbb
font_01_sfnt_off00007fe4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FE4 9820 bytes
SHA-256: 806a35cba2b3c4d75a803182d07457ae13db0decec4b8683932dfb80889c2721