Malicious PDF — malware analysis report

Static analysis result for SHA-256 1cfde06ddaa310a2…

MALICIOUS

PDF

149.1 KB Created: 2020-08-07 15:38:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8a2861b2ebafeb531ba1468b92f97553 SHA-1: 5d2c3c2ea39a896b2b3e3acb98f631ee21d7af17 SHA-256: 1cfde06ddaa310a2204655559a357d9ed93ee2a7f742ecb1b7fe18978883e627
134 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating a malicious redirector link. The embedded URL 'https://ttraff.ru/pify?keyword=albie+sachs+pdf' is the primary indicator of malicious intent. The document body, though heavily obfuscated, also contains this URL, reinforcing the redirection attempt. No scripts were extracted, but the presence of a malicious URL is sufficient to classify this as a redirection-based attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • 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.
  • 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=albie+sachs+pdf In PDF document text
    • http://files.atomicallure.org/uploads/1/3/0/7/130775859/9933253.pdfIn PDF document text
    • http://files.360inspectionservices.ca/uploads/1/3/0/8/130813796/9909914.pdfIn PDF document text
    • http://files.eljefeoffshorefishing.com/uploads/1/3/2/6/132682868/zodopo.pdfIn PDF document text
    • http://files.nayaung.net/uploads/1/3/1/4/131407057/wineb.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/1/0428/9835/8432/files/8007882555.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4909/0200/files/load_data_matlab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5116/2523/files/automatic_pump_control_circuit_diagram.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/58933331969.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3151/7605/files/rakodukabolep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4168/5665/files/all_car_brands.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5789/5831/files/gitikotiju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4874/6651/files/bram_stoker_dracula_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3564/8409/files/47758195190.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1239/9009/files/st3_form_mn.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5050/8194/files/92884982439.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4931/2665/files/26023481778.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 5

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_off000210a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x210A6 5276 bytes
SHA-256: de533b1bc3368fc451fc7549cef6fbc88e64de078e8d4f66890f59e96baa14a1
font_01_sfnt_off00022293.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x22293 10480 bytes
SHA-256: 29c067666924bf3dc990246f1e7f494bdd1b8b52230e3cc84d786cd6b893d6ac

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