Malicious PDF — malware analysis report

Static analysis result for SHA-256 a59fc9bbb704760e…

MALICIOUS

PDF

47.1 KB Created: 2020-08-17 18:31:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4ed10b270d281bb5184f3e5bce186192 SHA-1: ff86f16da30ee23d5f963f877c5e211b4f8a54c1 SHA-256: a59fc9bbb704760e0fea38ced8fb4cad71d39b228a7c5503ef449ef644c27c59
202 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.ru/pify?keyword=criminal+case+mod+apk+unlimited+cash'. This URL is presented within the document body, alongside numerous other links to PDF files hosted on Shopify, suggesting a link farm designed for SEO manipulation and potentially distributing malware. The presence of a 'download button' heuristic further supports the lure-based attack pattern.

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.ru/pify?keyword=criminal+case+mod+apk+unlimited+cash In PDF document text
    • http://sigefu.australasianhumanbiology.com/uploads/1/3/1/8/131871395/4287a3e.pdfIn PDF document text
    • http://files.republicoftexans.com/uploads/1/3/1/0/131070591/707992.pdfIn PDF document text
    • http://files.craicandcultur.com/uploads/1/3/0/7/130738911/rekekumuroname.pdfIn PDF document text
    • http://files.deltaworkready.com/uploads/1/3/0/7/130775998/f95c7d.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/13534048661.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8094/1721/files/64640545635.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1559/4393/files/25233128204.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2702/9400/files/wawoduvapigenagatipatow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8609/4248/files/memozobipoxavakebuzojufij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9597/3276/files/tabimom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2588/2523/files/20129827436.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3865/2054/files/tabs_open_alpha.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5746/3964/files/nusazagulofowafax.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006d55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D55 2880 bytes
SHA-256: 619a44e8b5c2a2d3fc0e18259d8022938ad4f8b30552901bc68dc41c3d0f2ef0
font_01_sfnt_off00007793.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7793 5280 bytes
SHA-256: 607c9571e20856d3901b24c5e3944834dcdf4fbb83daf712825233809018df5f
font_02_sfnt_off00008946.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8946 11044 bytes
SHA-256: 1f2f63dc3271a49d934358c8ecdbaa13de4b280e3006824cfaa87838966d37e1

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