Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ba19a210cfa9664…

MALICIOUS

PDF

57.2 KB Created: 2020-08-01 01:11:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8d2559ebd0a5f651c32115401dcbaac1 SHA-1: 0defea5eaaf8384e88cb6982e1decf7575fbe7c5 SHA-256: 0ba19a210cfa96640dd3f2bac8059bff380be6974ef6c5f3acde201a74ce8273
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service, suggesting a link farm or phishing campaign. The primary redirector URL is identified as malicious. The document body, though heavily obfuscated, contains the same malicious redirector URL, reinforcing the lure to click on it for a supposed download.

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=rurouni+kenshin+2012 In PDF document text
    • http://files.coribachman.com/uploads/1/3/1/4/131438708/zolawadovutafi_ruxuv.pdfIn PDF document text
    • http://files.citygroves.com/uploads/1/3/0/7/130739978/9560233.pdfIn PDF document text
    • http://files.mplusfphotography.com/uploads/1/3/2/6/132682042/baf05.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4466/7553/files/66013601135.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3838/9925/files/65923261128.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5074/5512/files/kerasamuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3526/3138/files/raduvurebipafidin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8993/5003/files/2856959773.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2874/2298/files/college_physics_10th_edition_young.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4233/9992/files/konezigo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2664/4125/files/99395328475.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7026/7291/files/babit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6019/1641/files/40019896961.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0722/0635/files/99163031652.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007f7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F7E 5164 bytes
SHA-256: bf74a361aef7385bf42bff6e45e945aad97a4ee993347178108acdb11d4d31cd
font_01_sfnt_off0000917a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x917A 4728 bytes
SHA-256: e3054b7dc99a57d923fd2b3dc80b68811db4e2fb67198b1208d0a1df4519ac52
font_02_sfnt_off0000a181.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA181 12608 bytes
SHA-256: d500b9360a0c77cb13817b7e1084e39addae74af5961cbd845c969c5c6ecf81f
font_03_sfnt_off0000c857.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC857 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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