Malicious PDF — malware analysis report

Static analysis result for SHA-256 cf8d1e8cd60878ac…

MALICIOUS

PDF

46.8 KB Created: 2020-07-27 08:39:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3510173f6ed84931104aed064c2c9583 SHA-1: 9e09ea8d2de704ba375d714c21762ed42d6c7711 SHA-256: cf8d1e8cd60878acb7ac6f7f9a0df477770c82af2b3f363481f343a32b37f95c
194 Risk Score

Malware Insights

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

The PDF file contains a link farm and a malicious redirector, indicating a phishing or scam attempt. The document body, though heavily obfuscated, contains keywords related to financial templates, reinforcing the lure. The primary malicious URL, https://ttraff.ru/pify?keyword=amortization+template+google+sheets, is identified as a redirector to malicious infrastructure. The presence of numerous links to external PDFs, many hosted on Shopify, suggests a coordinated effort to distribute malicious content.

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.ru/pify?keyword=amortization+template+google+sheets In PDF document text
    • http://files.blackandblueeaston.com/uploads/1/3/0/8/130873849/d95d23.pdfIn PDF document text
    • http://files.lemmarkgarment.com/uploads/1/3/1/0/131070918/raranap.pdfIn PDF document text
    • http://files.eastcountyrfc.org/uploads/1/3/2/7/132712057/pigixomar.pdfIn PDF document text
    • http://files.heart2artproject.org/uploads/1/3/0/7/130739776/5549158.pdfIn PDF document text
    • http://files.mitercontracting.com/uploads/1/3/1/1/131163635/pipopinenete-komisupivug.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/1/0430/3175/6957/files/94010742507.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2426/1026/files/bupak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6990/6854/files/41550107874.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/62092070186.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1017/6662/files/61244664064.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8242/4215/files/vedezagofivazofepuwosi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2906/0001/files/pubusuvi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7003/7924/files/babugufapakipeju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2155/0247/files/tujinopefusuzib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2797/1741/files/siwebuguf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0604/2013/files/nenokigilomezerikar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1218/5494/files/nalobafujowelibukuve.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/89352644259.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 6

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_off00007951.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7951 5060 bytes
SHA-256: 5a7d4a06191a3f3e6b6ec439fb57f700cd94e91aff4fce1f328f1a39f6c98289
font_01_sfnt_off00008a50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A50 10488 bytes
SHA-256: 40ecc33cf4926359361a70ead6a2cf50848ffbeea75efbfdef58ce302ee81977

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