Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce878e490f69f412…

MALICIOUS

PDF

80.7 KB Created: 2020-08-19 11:29:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1c61397cfde1aad84b584955143306d9 SHA-1: 458114ad599b6d2a9104ebfa37dc70166fb38cb0 SHA-256: ce878e490f69f4124233378b6bb232f16750749a5f2f44322bf3870103826a14
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, many pointing to Shopify domains but also including a suspicious redirector URL (ttraff.ru). This indicates a link farm designed to obscure the final malicious destination. The ML classifier strongly flagged this PDF as malicious. The primary malicious IOC is the redirector URL, which is likely used to funnel users to a phishing or scam page.

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=android+smartwatch+for+women In PDF document text
    • http://givodu.farmtoartfun.com/uploads/1/3/0/8/130813108/metuwewo.pdfIn PDF document text
    • http://files.littletheorem.co.uk/uploads/1/3/2/6/132681415/2442107.pdfIn PDF document text
    • http://files.hilgar.com/uploads/1/3/1/4/131453031/61188864e35af6.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/1/0434/6196/8025/files/52841777846.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6396/7906/files/83691573258.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9359/9132/files/53558930012.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4750/9416/files/8_bit_adder.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1367/5930/files/mario_bros_themes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6203/4589/files/tojededajiwa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1628/1512/files/vuwakanevij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1881/1552/files/angular_ui_autocomplete.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0965/4432/files/3643859645.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6869/3407/files/3rd_grade_math_2_step_word_problems.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e153.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE153 5308 bytes
SHA-256: 0f0fa0f096b6c4e27cf79fa8fc4f9423d11f569a4c33aa96f49fdfd47eb5d1f0
font_01_sfnt_off0000f339.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF339 1700 bytes
SHA-256: 113a67c841af57ed574cc30f094b4ef4e38ec5e5c1b7e8fe725d20ab3659442d
font_02_sfnt_off0000fbb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBB7 10688 bytes
SHA-256: 80818298c44d2b0fbaf7cea6231a9a5e600472ad67334b7b676971686b6775bb
font_03_sfnt_off00012040.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12040 16148 bytes
SHA-256: 333c6b7950143ef5b768b9d621755905cb9f9f437be433e332b6baa8edb2b5fd

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