Malicious PDF — malware analysis report

Static analysis result for SHA-256 10d2be2f973d2221…

MALICIOUS

PDF

41.1 KB Created: 2020-08-23 06:25:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e72d7608df79b42a2c57e3b17ccb7aa8 SHA-1: 1643162e3eac3fcc40b61131994166112cba0cc8 SHA-256: 10d2be2f973d2221a2fa94f44a39eb7009ff33410deed7767a8aec6294a1096e
202 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a known malicious redirector infrastructure. The document body and embedded link data suggest a lure related to 'ad hoc reports successfactors', likely intended to trick users into clicking through to malicious sites. The presence of a large number of external PDF links also indicates a link farm, a common tactic for SEO poisoning or distributing malicious content.

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=ad+hoc+reports+successfactors In PDF document text
    • http://files.mysticwatersoap.com/uploads/1/3/1/4/131409557/puvefizefatuj.pdfIn PDF document text
    • http://files.rolyart.co.uk/uploads/1/3/1/0/131070351/gegojezejivinene.pdfIn PDF document text
    • http://vaziz.thescribblersjournal.com/uploads/1/3/0/9/130969280/pirozuw.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/1/0437/3040/3477/files/lujakisegukovelakewenemuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6350/9143/files/20689198483.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6327/9767/files/25402341454.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3676/0485/files/dunuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9126/3649/files/57853854297.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5840/5275/files/newabexum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/6181/0076/files/the_lean_muscle_diet_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9818/6652/files/bubble_trouble_2_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0310/0836/files/bigusofanuzerogofusiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5727/4261/files/fadukiloma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2571/8678/files/4057001005.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3012/6496/files/ditel.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 3

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_off0000620d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x620D 5200 bytes
SHA-256: 78ef074c76bc77ad60f9585712b469873a1174c95403d91771ed00eb0bfc74ed
font_01_sfnt_off000073b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73B5 10464 bytes
SHA-256: cb61224a93c03d3dc3d605aaae7c88502511a74055b07011bc4f2d25a033920a

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