Malicious PDF — malware analysis report

Static analysis result for SHA-256 067691fcec1e8704…

MALICIOUS

PDF

45.1 KB Created: 2020-08-12 23:28:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c370919a2d3b60b1b3d4aa0d39257e81 SHA-1: 57786995f48d08466a2fe68a15e8527bd785ee23 SHA-256: 067691fcec1e8704cfd8631097de38a311cb63cf0bfe21b6ee929a574a342130
194 Risk Score

Malware Insights

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

The PDF contains numerous links designed to appear as legitimate documents, but they redirect to a malicious infrastructure at `ttraff.ru`. The ML classifier strongly indicates maliciousness, and the PDF structure suggests a link farm used for SEO poisoning to lure victims. No scripts were extracted, but the embedded links are the primary attack vector.

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=project+planning+and+budgeting+pdf In PDF document text
    • http://fajob.felisarogers.com/uploads/1/3/2/3/132302780/fazexuwolositep.pdfIn PDF document text
    • http://files.blbrunnemer.com/uploads/1/3/1/4/131408024/sosexuvirewizil-daxije-petudobibu.pdfIn PDF document text
    • http://wakuw.mammas-amorepasta.com/uploads/1/3/2/8/132814930/ea340.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0944/0935/files/96625791836.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4040/6684/files/77331849634.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6221/5324/files/74710971999.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3579/4327/files/fulugunotix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5322/5883/files/valores_normales_de_cetonas_en_orina.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9667/6254/files/tale_of_two_cats_osrs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8649/4361/files/bhu_bsc_entrance_exam_syllabus_2020_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5276/9192/files/giropokalexuferosokakol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1329/7560/files/36801344369.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1303/5416/files/75440731496.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8581/4173/files/vopawenuxunuzijolowufow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0687/0183/files/rezuvidujofimenopuke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6001/0912/files/17834559483.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 1

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000640e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x640E 5244 bytes
SHA-256: 474d23d4017b2e6629d9c1ebed6f27be746a57fc9f2db794197a49c97fd0ef7b
font_01_sfnt_off000075e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75E9 10296 bytes
SHA-256: 58697c07562505f25e9aa1e7c3ebecdf1d105664e1dae6edaca0b898143624ef
font_02_sfnt_off00009904.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9904 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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