Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7ef20bbd796c18a…

MALICIOUS

PDF

62.5 KB Created: 2020-08-20 21:33:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e5ae84adaa62cb446f11418d90934259 SHA-1: 9c6eb0d431a848aaae638cbbb92565f5965ebdf7 SHA-256: d7ef20bbd796c18a14997a74bb838f380f4e181c95d4e11724dbc9560f0123da
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a prominent link that redirects to a malicious URL, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though partially corrupted, contains text referencing 'Dawn of titans leveling guide' and the malicious URL itself, suggesting a lure. The PDF_SEO_LINK_FARM heuristic indicates the PDF is part of a larger link farm, further supporting a malicious intent to drive traffic to potentially harmful sites. The ML_NYX_PDF_MALICIOUS heuristic strongly supports the malicious classification.

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=dawn+of+titans+leveling+guide In PDF document text
    • http://dibug.lashupbrowdown.com/uploads/1/3/1/4/131438345/gapunivowaxem_movogepo_volasamosow.pdfIn PDF document text
    • http://files.poweryogaflow.com/uploads/1/3/0/7/130739544/1208677.pdfIn PDF document text
    • http://vopak.rochonsands.net/uploads/1/3/1/8/131856158/187882a6bf.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/1/0429/2476/9436/files/wufuxemenapabokuxuludijo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8670/8893/files/34071365646.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7465/8216/files/xogowem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/6800/3228/files/41201178583.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5820/8674/files/firefox_activex_control.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7372/3800/files/xabom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4790/3644/files/lipovafof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8640/5029/files/budget_speech_2019_zambia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9027/2675/files/13960874932.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_off0000b740.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB740 5132 bytes
SHA-256: d520285022c99d386c1b4854116eb285413776424cf20ba8d16b64891ff43214
font_01_sfnt_off0000c8e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8E7 10704 bytes
SHA-256: cffcc78a78409f22095ed507408514bd7bc77830a3c1b6e069c60d32d7b0b1a7

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