Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1d911d5475b2c6f…

MALICIOUS

PDF

54.3 KB Created: 2020-09-04 08:42:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: aa10b9b063fe4e9ff80a39c7a45f956b SHA-1: 80ea6239ea004d14b18afbc6c6185d90f644a014 SHA-256: d1d911d5475b2c6f36f76fa67bd537360cbe10b1a4af3a624451607565ae8f25
202 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a malicious URL, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text suggesting it is a user manual, which is a common lure for phishing or malware distribution. The ML classifier strongly indicates maliciousness, and the presence of numerous external PDF links further supports a malicious intent, likely to distribute further malicious content or phish for credentials.

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.me/wix?keyword=canon+eos+760d+user+manual+pdf In 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/1/0440/7348/4438/files/37728677937.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5921/6537/files/government_of_canada_passport_renewal_application_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3848/1311/files/jejapumovetosudinus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0458/0130/8326/files/54903631140.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8211/3433/files/84507068644.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3794/9090/files/jagagazimawo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5725/0455/files/migukesipalukere.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6604/1244/files/39405472599.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0308/3928/files/54391232228.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3470/6069/files/injustice_2_mobile_gear_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0544/3237/files/derixexadizawudagosoji.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_a644aabf54cd4891aee24555feb8c015.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/d3758e_d159d64373cd4980bcc09284baccdb9a.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/a18aa6_f7207cbc75c640e39307b4fe9c83060b.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/c8a981_a2fc0f5ced644f799e2dafa2a5f54334.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/d775a9_1142d08ffb504ea285929e24e1dce500.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007b1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B1B 3312 bytes
SHA-256: 707f044220626673030db1e929683b7e6be6df4515348478205ae719871ec17a
font_01_sfnt_off000086fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86FD 5468 bytes
SHA-256: 33475da10b48acdfc102f519be3fa23eee3a2e835577bb3057bfb73b3cab358f
font_02_sfnt_off0000997b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x997B 16668 bytes
SHA-256: 89d5aa201d43b3fe48f8e19f1e18e261c1f7ad5b3ccfcfc7991012ee9da64809