Malicious PDF — malware analysis report

Static analysis result for SHA-256 2db12ca53725e1b3…

MALICIOUS

PDF

41.8 KB Created: 2020-08-08 01:32:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7dad82b17aa9981bf7219d567b8649d5 SHA-1: 43a902b502bafaa86606e2bb8b57c84b7f0c9969 SHA-256: 2db12ca53725e1b32569f8d9e0eaa8cb696a26ff4c53dc78e699280a570ea601
202 Risk Score

Malware Insights

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

The PDF contains a link farm and a malicious redirector, indicating a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains text related to 'scanshell 800nr calibration sheet pdf' and a URL that points to a malicious redirector. This suggests the document is designed to trick users into clicking the link, likely leading to a malicious download or further phishing attempt.

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=scanshell+800nr+calibration+sheet+pdf In PDF document text
    • http://files.threelittlefishesswimschool.co.uk/uploads/1/3/1/8/131857540/somekiwad_vovif_lifapeja.pdfIn PDF document text
    • http://files.largeblackhogofpa.com/uploads/1/3/2/6/132681028/c81104c37a1c.pdfIn PDF document text
    • http://files.writeonpoint.net/uploads/1/3/0/7/130739746/muxopupikixivivase.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/1/0431/2019/7789/files/1882799517.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8260/3927/files/oxigenoterapia_neonatal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6363/1272/files/what_does_xd_stand_for_in_texting.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gikari.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5817/5893/files/95882029285.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5960/1830/files/18790269319.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7997/5591/files/sajijuzuwunaxevokajo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6516/3422/files/17233115180.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3459/0875/files/86681836213.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2501/4685/files/15828259645.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7487/9641/files/sukedukanobotebelisufodu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/15125842299.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2086/9019/files/34057526953.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 4

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_off00006244.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6244 5824 bytes
SHA-256: c087e145715c0199caa0003b57f763178e2372279a197d45ae251a4c5e39480c
font_01_sfnt_off00007602.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7602 10084 bytes
SHA-256: 09255277496b131d444d1749f8b4559f3ac4424cafdd57c444ed094cae0b5015

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