Malicious PDF — malware analysis report

Static analysis result for SHA-256 48a890dca25b4262…

MALICIOUS

PDF

53.1 KB Created: 2020-07-30 12:48:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: dd7d5dc5e48500ea94fe8cd4faaf8af0 SHA-1: a51ad0c923989cca95fb2703395b719978452724 SHA-256: 48a890dca25b42624c95e9aa77ad55a392aa5d5f25d7f1cdcf994c685832fc38
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, forming a link farm. One of the primary links redirects to a known malicious domain, ttraff.ru, suggesting a traffic redirection or phishing scheme. The document body, though heavily obfuscated, appears to be a lure related to 'drug abuse definition pdf'. The presence of a link farm and a malicious redirector indicates an attempt to drive traffic to potentially harmful content or phishing pages.

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=drug+abuse+definition+pdf In PDF document text
    • http://files.lizfinearts.com/uploads/1/3/1/6/131606598/4322990.pdfIn PDF document text
    • http://files.tucsonkestrel.com/uploads/1/3/1/8/131856844/naxowonug_sepufa.pdfIn PDF document text
    • http://files.echsafety.com/uploads/1/3/0/8/130814121/mekaradipotulej_noxevitubok.pdfIn PDF document text
    • http://files.joyuzsong.net/uploads/1/3/1/8/131856358/183549.pdfIn PDF document text
    • http://files.paulemoryputz.com/uploads/1/3/0/9/130969403/b5f1306abad1fa.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/1/0429/5317/9289/files/xaveduz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6176/2455/files/zaxidadilumakobu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8799/5807/files/62485934424.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8951/7973/files/70668863987.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2393/2311/files/vozabawikolumowafudepevo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2040/9256/files/semorarepiwit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4642/8072/files/74651962376.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7188/9817/files/nexaxomox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/45484104345.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8313/7178/files/padoranu.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_off00009246.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9246 5196 bytes
SHA-256: 6616aae15b912319c7c8aa18881f4da5a9131a645381492a90cae4aa2d0c1e65
font_01_sfnt_off0000a3f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA3F7 10340 bytes
SHA-256: fe73911dc2fea2d1ead7d08da971a0dd534c8cf7a8e8de22f7247b27ea962149

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