Malicious PDF — malware analysis report

Static analysis result for SHA-256 10b9a6b14f903a96…

MALICIOUS

PDF

33.6 KB Created: 2020-08-22 15:13:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5328409513a62419d53a6d4cf0b4d96f SHA-1: 1c85b8ffd6ac49548c9bcfc193441387faaa246c SHA-256: 10b9a6b14f903a9676905cb7300ba009ccb062bebb706a1d771d9c4a424fec6d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple embedded links, including one identified as a malicious redirector. The document body, though partially obfuscated, contains text referencing an 'installation manual' and includes the malicious URL, suggesting a phishing or social engineering lure. The presence of numerous SEO-optimized PDF links further indicates a link farm designed to distribute malicious content.

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=ansul+442r+installation+manual In PDF document text
    • http://files.nlfarchitect.com/uploads/1/3/1/1/131163620/4192135.pdfIn PDF document text
    • http://putasuwur.drgarygoodman.com/uploads/1/3/2/6/132681946/3510140.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/1/0437/0215/7466/files/73785213690.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6025/7177/files/noxolazelin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3604/7525/files/62816284665.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4106/2040/files/xazuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2670/9665/files/13353154871.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zutowujovepenatugipo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6539/3820/files/53588344866.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6763/7922/files/16564227488.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0593/4759/files/wwww._dropbox_connect.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7954/1671/files/namo_app_for_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0942/6079/files/vigepuropuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5930/4865/files/12732111755.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_off000046f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46F8 5040 bytes
SHA-256: 1f650b03a323824991149cd60d1f7d5201f29178b77d13cdcb784ef9d373e724
font_01_sfnt_off00005801.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5801 9924 bytes
SHA-256: f6b815cc408c0b96b2b8665e74aa6210e7235ad2828f581e4bdc7bcef164d46b

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