Malicious PDF — malware analysis report

Static analysis result for SHA-256 077041574fc19d8a…

MALICIOUS

PDF

39.7 KB Created: 2020-08-21 11:06:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 03a38ee4d3b463ea39668ea98fbf6bcd SHA-1: 17c4305b3220fabe69d5c256aab30f4eaaf3372b SHA-256: 077041574fc19d8ae576ceea570b9625926ade53e22a19f7f9d854e05702b365
234 Risk Score

Malware Insights

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

The PDF contains embedded links pointing to a redirector URL, identified as malicious. The document body, though partially corrupted, includes the same redirector URL and appears to be a lure for 'Whatsapp for blackberry q10'. The presence of numerous links and the ML classifier flagging it as malicious strongly suggest a phishing or credential harvesting attempt, likely using a link farm to obscure the final destination.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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=whatsapp+for+blackberry+q10 In PDF document text
    • http://mikik.eunoiatherapy.com/uploads/1/3/0/7/130738799/7dc94c7e93c.pdfIn PDF document text
    • http://kotix.overtimefitness.com/uploads/1/3/1/4/131438448/xurajapowokurukifo.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/1/0433/6844/8152/files/76342988804.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3153/5522/files/gangster_crime_game_for_pc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6020/8540/files/tekulevotobegaluvefiva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/munuzajutajamarigeregutoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4754/1146/files/62802803837.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/9285/6232/files/telugu_dubbed_bluray_movies.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2254/1209/files/fishing_barents_sea_king_crab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6987/3054/files/b_arch_full_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1316/8542/files/94355782853.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 2

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_off00005b8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B8C 5744 bytes
SHA-256: 32bb3826a2a4b1e1670b926f2f84a1ac9b21090d947b90a53e2c27eee132c2a0
font_01_sfnt_off00006f28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F28 10364 bytes
SHA-256: d5089fd7d5ce637e9f0fa28c9873999cd9a547d969098b1f577dde1e36662bb4

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