Malicious PDF — malware analysis report

Static analysis result for SHA-256 12391a091187f075…

MALICIOUS

PDF

40.4 KB Created: 2020-08-14 23:52:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b19554cb753418f27956374000bcb334 SHA-1: 6f65b8c7860bd2d0078d1d7cfd9b04f0675fae45 SHA-256: 12391a091187f0752ffef9a24313cc4200b5431088fdf55cd7fd3727cd1c4f13
214 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, including a known malicious redirector at `https://ttraff.cc/wb?keyword=how%20to%20manually%20backup%20iphone%207`. This suggests the document is part of a link farm or phishing campaign designed to redirect users to malicious sites. The ML classifier also strongly indicated maliciousness.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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.cc/wb?keyword=how%20to%20manually%20backup%20iphone%207 In PDF document text
    • http://files.wildlifetreasure.com/uploads/1/3/1/8/131856646/webadinabigufi_xamur_gogoruxakoveko_velowejula.pdfIn PDF document text
    • http://files.imerusa.com/uploads/1/3/2/8/132815054/pejuxawe_wimapewiwimuze.pdfIn PDF document text
    • http://gogut.ashlypianocrafts.com/uploads/1/3/1/3/131380213/norisapevorewinokap.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/1/0431/1157/9809/files/8118462534.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4746/0768/files/tabofigasafogoxuzig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6970/9217/files/83655122928.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6821/9799/files/66936086557.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4026/8711/files/80255305170.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5011/4967/files/pesuvafug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5886/9910/files/53782692212.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1645/4305/files/sebapurolituniwebotalog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6779/3820/files/vatupenaxovuji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3432/8738/files/32266880893.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5717/6986/files/26378406591.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1330/7541/files/kebulet.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006023.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6023 5336 bytes
SHA-256: 27b23403efa317ec1aaa4f308379163bf2d9e9ba6c1708728b65d11c56ef813f
font_01_sfnt_off0000723f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x723F 10060 bytes
SHA-256: d9d200a295ed09cdb7e866b5bdc47d57197d561489c5b70c1e0a9e2569f631f8

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