Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a193ffa691c9220…

MALICIOUS

PDF

44.2 KB Created: 2020-08-21 08:09:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 62656c2a0cb305dc6f571bc8d5aa7401 SHA-1: 41a161165868712f1b0acdc64e6a386a9ec0dde1 SHA-256: 8a193ffa691c922032422fb6056861e9564b5205f625f0f6101b8291a5e06109
178 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a download button, aiming to lure users to a harmful site. The document body and heuristics indicate a phishing attempt, likely for credential harvesting or malware delivery. The presence of a link farm suggests an attempt to game search engines for visibility.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 7

  • 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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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.cc/pify?keyword=cinema+4d++free+windows+10 In PDF document text
    • http://files.shrubmadness.com/uploads/1/3/0/7/130775561/kefez.pdfIn PDF document text
    • http://files.mattcameron949.com/uploads/1/3/0/9/130969889/9815991.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/1/0433/0687/7080/files/negopolikutowuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8457/0019/files/vsco_x_free_filters_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0455/3962/3077/files/theories_of_bounded_rationality.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9494/8517/files/29320932328.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6857/1298/files/makalah_aborsi_menurut_pandangan_islam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5249/8070/files/modern_periodic_table_of_elements.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3839/8869/files/97905195668.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7810/6779/files/transformadores_de_alta_frecuencia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8764/3302/files/bozufafasurezurafa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8617/6675/files/gazikuzazare.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6229/5716/files/les_accords_de_base_guitare.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 7

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_off00006de1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DE1 5300 bytes
SHA-256: 24727823d6fd3cb3fdd046fbb7180b3b3085c44359096f2c5e32f5f15b641df9
font_01_sfnt_off00007fe5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FE5 10524 bytes
SHA-256: 6abca5c1a3d1992d787df6b71b1e5ff6d7296f2c50c8b2633f750043ed718fac

Open this report in the interactive analyzer, or submit your own file for analysis.