Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8c61b1677dbda2c…

MALICIOUS

PDF

44.6 KB Created: 2020-07-30 18:23:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ba9ee3050208e320fae1816f416b7506 SHA-1: c52b5a876b5ddd35119bf674fd53afb4053288cb SHA-256: e8c61b1677dbda2ce229b2b0753d1d2918d19809092940915c742945482f05ff
194 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains text related to a 'split back formation playbook pdf', suggesting a lure. The primary attack pattern involves redirecting users to malicious infrastructure via these links.

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.ru/pify?keyword=split+back+formation+playbook+pdf In PDF document text
    • http://files.greatimpressionsstaging.com/uploads/1/3/0/7/130738841/c275d2e12f84.pdfIn PDF document text
    • http://files.shellygiggey.com/uploads/1/3/0/7/130776592/9045740.pdfIn PDF document text
    • http://files.landscapeaestheticsllc.com/uploads/1/3/2/6/132696112/pogemujejivobefazuwe.pdfIn PDF document text
    • http://files.halcyonskies.net/uploads/1/3/2/6/132681938/wabokabuvewipumiva.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/1/0430/8670/8890/files/60942871427.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2041/1303/files/12986859027.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6657/2443/files/xiwijolekebab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1425/0905/files/72300704445.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5847/1846/files/92953234898.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5180/9942/files/belewoleraxekak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/jokopewizemaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4897/6032/files/36378754625.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9961/1553/files/vegijijoxusanaremidamak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5453/7624/files/ranigapixiwijo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6223/1201/files/penexewabibiwar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7446/2631/files/25964824128.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9120/5021/files/55801495557.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5253/0845/files/muvufamejifipomeveto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1854/1480/files/jukumakofonub.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 6

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_off00007166.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7166 5204 bytes
SHA-256: 018fadca93516d012b6d94699653aef17aa91215c33130be1d1c6b46633f209b
font_01_sfnt_off000082ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82EC 9924 bytes
SHA-256: 2d4cae0be2e31da1f9859e4d83f0397206e3b767367bdb1a8851b7f38ba62c52

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