Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce92cd122694eb38…

MALICIOUS

PDF

54.2 KB Created: 2020-08-05 02:23:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5c1f4d7655a99954d790ad62692583e2 SHA-1: 439c0623def0abe6e432a37fa9791e5bf761389d SHA-256: ce92cd122694eb381d4bfef991e741510f048f61f203c6856da6f0aac2ce2cb3
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic firing indicating a malicious redirector. The primary malicious URL identified is https://ttraff.cc/pify?keyword=cerebellar+ataxia+pdf. The document body is heavily obfuscated but contains the malicious URL, suggesting a lure to a malicious site. The presence of numerous external links points to a link farm strategy.

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=cerebellar+ataxia+pdf In PDF document text
    • http://files.theunlimiteddreamer.com/uploads/1/3/2/3/132303010/bibobovakorogu.pdfIn PDF document text
    • http://files.baysidechicgalveston.com/uploads/1/3/1/0/131071067/4415016.pdfIn PDF document text
    • http://files.glenburniequicktaxi.com/uploads/1/3/1/0/131070178/gijefodisinunuvemapo.pdfIn PDF document text
    • http://files.newenergyera.org/uploads/1/3/1/4/131406140/nevekeje.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/1/0437/6671/0433/files/vekokolufesokezevajo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/1028728638.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0143/0695/files/25868600159.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1767/4656/files/77833014375.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3495/9256/files/wujisovuto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0127/3758/files/75859956709.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5592/3878/files/analysis_of_transport_phenomena_solution_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6258/2693/files/28446161424.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3477/1610/files/88274677843.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5560/3094/files/98273814980.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2931/5229/files/panefalo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5863/3631/files/7647703421.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_off000096b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x96B7 4968 bytes
SHA-256: c9c285cbe15c057f4a8d716ec9c42798ebd3f6ca93966891f856b369fbf3f388
font_01_sfnt_off0000a7a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA7A8 10616 bytes
SHA-256: 7452a0dfcbc7378628de2aeca0b5e5f16c484fa7c818744f8ac7941309db6f66

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