Malicious PDF — malware analysis report

Static analysis result for SHA-256 98c207b96134a519…

MALICIOUS

PDF

39.3 KB Created: 2020-08-25 07:50:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b4356b453f988dd0f46c1b8e9e4035cb SHA-1: 11126b2d4e0c307682df9bde8222d2e3daaa1ec0 SHA-256: 98c207b96134a519431667663e5064599a9b6d87eefd1bf32e3a2234c9739da4
202 Risk Score

Malware Insights

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

The PDF file contains a link farm and a specific URL that redirects to malicious infrastructure. The document body, though obfuscated, contains text related to an exam form and the malicious URL, suggesting a lure. The presence of a visual download button further supports the social engineering aspect of this attack. The primary malicious URL identified is https://ttraff.com/pify?keyword=pre+b.+ed+exam+form+2018, which is likely used to redirect the user to a further stage of the attack.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=pre+b.+ed+exam+form+2018 In PDF document text
    • http://welodak.generationxgoesglobal.com/uploads/1/3/2/6/132695643/jofepoxidoma_sogekomumu_ludeliz_vuroju.pdfIn PDF document text
    • http://files.densityanalytics.com/uploads/1/3/0/8/130814769/57a960d0c0.pdfIn PDF document text
    • http://files.andrewmartinsmith.com/uploads/1/3/1/1/131164479/11c786.pdfIn PDF document text
    • http://files.lavwcd.com/uploads/1/3/1/3/131398541/sibekigusew_pufefanapu_gulalelu.pdfIn PDF document text
    • http://beluzakob.mrjbake.com/uploads/1/3/1/3/131381167/gekewab.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/1/0435/8779/7160/files/2014_town_and_country_owners_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9265/4745/files/41206023676.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0949/7496/files/employment_card_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8566/9279/files/88054426362.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0306/0128/files/36590408199.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5005/0460/files/mumoxasejizisuvironub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/90209356055.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1653/4685/files/motakajib.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 8

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_off00005be4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BE4 5604 bytes
SHA-256: e7f6d56858a148a3ad93661eef9ef8a996f07ad1a723dfad2d0b714932c013f7
font_01_sfnt_off00006ee8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EE8 9872 bytes
SHA-256: e1d7dd15f5a4f2cbd3600adead27ec8c06b81793125e97e75458c49fa5667c94

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