Malicious PDF — malware analysis report

Static analysis result for SHA-256 bbbbdad563041fdc…

MALICIOUS

PDF

42.7 KB Created: 2020-07-28 23:06:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cbe200595efdfa4e3546d49400d6b688 SHA-1: b13bbd5dccc91d322578be1761149414138c6993 SHA-256: bbbbdad563041fdcd532984e1dd09ae15ae13e24bf3d47d33c1eac90485dd7ce
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.003 Command and Scripting Interpreter: Windows Command Shell

The PDF contains a lure suggesting the user needs to format an SD card, which is a common social engineering tactic. It embeds multiple external links, with one pointing to a known malicious redirector. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms this, and 'PDF_SEO_LINK_FARM' indicates a large number of external links, likely for SEO manipulation or distributing payloads. The heuristic 'SE_CLIPBOARD_COMMAND_LURE' suggests the document may also instruct the user to execute commands, further indicating malicious intent.

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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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=cannot+format+sd+card+macbook+pro In PDF document text
    • http://files.silkysbrooklyn.com/uploads/1/3/1/8/131856158/1608646.pdfIn PDF document text
    • http://files.advanceadvocacyandsupport.com/uploads/1/3/1/1/131163617/wakijedovenifal-muwajolanis-sixafa-jononilu.pdfIn PDF document text
    • http://files.ourconsciousconnection.com/uploads/1/3/1/4/131483053/4096026.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/1/0432/0316/6369/files/tubizekot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1097/2053/files/vebud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0070/9791/files/62211265379.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7512/5923/files/37339560976.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5032/7451/files/82475545970.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0165/1105/files/bowitufifeletudesidezedew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9992/1315/files/rakebulawuzesufek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1918/1978/files/wapadopijenos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9095/8749/files/linujunudafuzumed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4796/0232/files/xanefofiman.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006b19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B19 5120 bytes
SHA-256: f4ce2ffa59879926fc9bffe45ff2995c151f58ec2c1551c92a2a08f8b54c32ef
font_01_sfnt_off00007c5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C5D 9832 bytes
SHA-256: ab79c347fd4154f6c6d76d01638f71635326231bbd1ff28f3b0962a187d16144

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