Malicious PDF — malware analysis report

Static analysis result for SHA-256 f81cbc742124c028…

MALICIOUS

PDF

44.0 KB Created: 2020-07-30 16:52:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d1b65cbb5c6e25483dd0526df0ecef1b SHA-1: 7053909d399741468633c208c7400943357491ff SHA-256: f81cbc742124c0288cd5d69d60d4b0bb897f3a704c6247387787ec9e03d1f471
194 Risk Score

Malware Insights

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

The PDF document contains numerous embedded links, many of which point to redirector infrastructure like 'ttraff.com', indicating a phishing or scam attempt. The heuristic 'PDF_SEO_LINK_FARM' suggests a large number of outbound links were generated, likely for SEO manipulation or to distribute malicious content. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest an attempt to redirect users to malicious sites, potentially for credential harvesting or malware distribution.

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=kerosene+poisoning+management+pdf In PDF document text
    • http://files.ccfarmadk.com/uploads/1/3/0/9/130969818/banewamakebuj.pdfIn PDF document text
    • http://files.accuratecmmservices.com/uploads/1/3/0/7/130739470/balowazimo.pdfIn PDF document text
    • http://files.flagstaffsings.com/uploads/1/3/0/7/130776578/8ea2bc5b96.pdfIn PDF document text
    • http://files.senecaflowers.com/uploads/1/3/1/6/131637316/donudubixap-vesopasali.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/1/0431/1885/4306/files/59979594539.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7547/7416/files/29519142275.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5663/5816/files/86828677104.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6625/3724/files/vaxevuwupewoxujugofevixof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6677/8009/files/58982595335.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3207/5678/files/zumazazebexegideza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2625/9876/files/tupabijifesizob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8293/8520/files/metotemadojojudil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2571/0756/files/baniberovonawizusogudil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5298/0641/files/gefexipixune.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4324/9563/files/kopojirinonanapirezal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4102/9276/files/73451376018.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9602/3975/files/poteju.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_off00006ed0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6ED0 5088 bytes
SHA-256: 877936a04571d2b8ada323a6a641031da4ae656762a1c2438aa220a919335b0c
font_01_sfnt_off00008006.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8006 10260 bytes
SHA-256: 33fb59e4fd0e45e02496e4f2abeec6ec4035c83bc18ec2254f4013ac3782b41e

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