Malicious PDF — malware analysis report

Static analysis result for SHA-256 45000f9954b485f6…

MALICIOUS

PDF

50.6 KB Created: 2020-08-10 05:15:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 907edf5fb547c470e31568a3fee4dc5e SHA-1: e598149d1863b447b923dd06aa3122221cf36838 SHA-256: 45000f9954b485f6db9e1e322bd0b9169288a06428c578edcb2a5aa280de2047
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, disguised as an internship letter. This indicates a phishing attempt to redirect the user to malicious content. The document also exhibits characteristics of a link farm, with numerous embedded URLs pointing to external PDFs, likely to manipulate search engine results or distribute further malicious content. No scripts were extracted from this sample.

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.cc/pify?keyword=example+of+internship+letter+pdf In PDF document text
    • http://files.fortgrard.com/uploads/1/3/1/6/131636807/walunipojejom_vaposefume_kanunuxafog_bumerijara.pdfIn PDF document text
    • http://files.theclaylion.com/uploads/1/3/0/7/130776728/3716753.pdfIn PDF document text
    • http://files.helpmyvillagekids.org/uploads/1/3/1/3/131383319/6951268.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/1/0427/9074/8316/files/57350080031.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9980/0217/files/administration_active_directory.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3234/6773/files/xuvujilomipuzijupejen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6893/9672/files/bojen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4834/5500/files/30789706404.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3137/8590/files/92759408298.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5559/5172/files/67298726409.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4856/6941/files/50892741809.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1025/1176/files/49274038054.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0894/9402/files/juwejomigijadilemererogu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/78476378890.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7201/1941/files/fekazarupanufejimod.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_off000086fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86FC 5308 bytes
SHA-256: 0c6a3dbcd76bf79a4c17cd0d75d689c79bd2154ecda6132ad6a680ed82371a28
font_01_sfnt_off000098e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98E4 10768 bytes
SHA-256: 78c5f4ed09368b10801c52f03c4c94e06c72185147b93760d998ce04345d79a6

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