Malicious PDF — malware analysis report

Static analysis result for SHA-256 c47bc979b922c813…

MALICIOUS

PDF

68.6 KB Created: 2020-08-23 01:59:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2446e5675ce77eb7343bab82ebff557a SHA-1: 173e59c83d697bd45e7e502d06fa35c40c5d14b3 SHA-256: c47bc979b922c813006aca78b47d88529b01a427d1ef8f27a3970c2cfaeae733
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. This URL is presented in the document body under the guise of providing free Microsoft Access database examples, a common lure for phishing or malware delivery. The PDF also exhibits a link farm, suggesting SEO poisoning tactics to increase visibility. The ML classifier strongly indicates maliciousness.

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.com/pify?keyword=microsoft+access+2010+database+examples+free In PDF document text
    • http://files.holmescreekbc.com/uploads/1/3/1/1/131163914/vowitekap_fuzagukajagar_faxese.pdfIn PDF document text
    • http://files.therosados.org/uploads/1/3/0/8/130814056/f5786.pdfIn PDF document text
    • http://guleji.leazahbehrens.com/uploads/1/3/0/8/130874277/fobobojerut.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/1/0429/3266/6524/files/semotofigabodibulu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2186/7930/files/46697510989.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9183/6566/files/22788434223.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5055/5799/files/usa_charachter_arcade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/16175378270.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1899/3320/files/79857642409.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dijev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0173/0456/files/gababesaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4259/3189/files/muvugugubagokunoneweki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3290/3829/files/besuvexuseziwuzu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2885/7503/files/mapa_algarve_portugal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7152/0414/files/onondaga_county_imagemate.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 7

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_off0000c7fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7FB 5840 bytes
SHA-256: 75985dfd4bc56d55d54480541945ee609b5d01e3a42320df88ed5fe6cb4bfe32
font_01_sfnt_off0000dbc6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBC6 13052 bytes
SHA-256: 99ae8a8fe00208e488f9e2c02dfd1bf782305f31d0aaea6d395427dddb12622a

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