Malicious PDF — malware analysis report

Static analysis result for SHA-256 c06277496f923984…

MALICIOUS

PDF

71.2 KB Created: 2020-08-08 22:40:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 41e16d5146ec14f01ce391455a111d6b SHA-1: 6c93ddbf558658ccbdfebc23a0086902beae50e4 SHA-256: c06277496f923984e3e3607b65dc05d1eeff9a6cf1efb15050307faaddafacff
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The primary malicious URL identified is https://ttraff.cc/pify?keyword=strategic+thinking+training+pdf, which is presented as a link to a training document. The document body is heavily obfuscated, but the presence of the redirector and the link farm suggests a phishing or malware distribution attempt.

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=strategic+thinking+training+pdf In PDF document text
    • http://files.anintimateplace.com/uploads/1/3/0/9/130969322/195e940c64.pdfIn PDF document text
    • http://mutolixuk.lowcountryraptors.org/uploads/1/3/2/6/132695569/xutosu.pdfIn PDF document text
    • http://files.keepitpumping.net/uploads/1/3/0/8/130814014/8559426.pdfIn PDF document text
    • http://fikaj.empirefloorsca.com/uploads/1/3/1/4/131408899/femati_werunu.pdfIn PDF document text
    • http://files.westdesmoineslawncare.com/uploads/1/3/1/6/131637108/8300933.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/1/0431/0204/4316/files/taralofibinodemoveza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/demajez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5107/3174/files/ncert_class_12_chemistry_biomolecules.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9040/1687/files/bonupe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5157/3657/files/zamotowefopimeralolu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5608/6696/files/6858676259.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1014/6983/files/shell_advance_ultra_scooter.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6974/4028/files/besirarevegavusuwijuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8749/5322/files/10392388919.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0291/9074/files/8.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1581/2766/files/5th_grade_math_in_focus_workbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7954/1671/files/34660157209.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d95d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD95D 5372 bytes
SHA-256: 3203105ec1a776074916f5fd5c2a76f6e12d8427bc976ec679c901c6bf56c868
font_01_sfnt_off0000eba3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBA3 10548 bytes
SHA-256: f64f8aa290ff3e809347911350460a9dfa7c080d58f5aa66c423f853e1842dbf