Malicious PDF — malware analysis report

Static analysis result for SHA-256 1bbcc434da6f6392…

MALICIOUS

PDF

44.9 KB Created: 2020-03-09 08:00:24 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2026-05-09
MD5: f9b0cfd3a0a5437c787d2d79b7fff6fc SHA-1: 8fd3dda064561b4388c7ad71483a9c6e068ffbdb SHA-256: 1bbcc434da6f6392a5e3f726c6a70e4ac4b80c9df2733ec92c8fae6e568da581
104 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a large number of external links, forming a link farm designed to direct users to various malicious PDF files. The document body text, though partially obfuscated, includes a URL that points to a specific HTML file, likely a landing page for further malicious content. The presence of a "Download" button lure reinforces the deceptive nature of the document.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://74-123-72-89.mgwnet.com/uploads/1/3/0/5/130590158/130590158.html#allah+ke+99+name+download PDF link annotation
    • http://ndtasanantonio.org/uploads/1/3/0/6/130605433/70518a6fb9f707.pdfIn PDF document text
    • http://natalieelizabethseipert.com/uploads/1/3/0/6/130640094/65abddb008d4a8.pdfIn PDF document text
    • http://www.sampeterson.com/uploads/1/3/0/7/130739214/wiwasoremeruzumo.pdfIn PDF document text
    • http://popartframes.com/uploads/1/3/0/4/130483385/3139616.pdfIn PDF document text
    • http://mfest.com.au/uploads/1/3/0/9/130970006/4459974.pdfIn PDF document text
    • http://bananas.education/uploads/1/3/0/6/130603838/sizokodive.pdfIn PDF document text
    • http://mckinneytechsolutions.net/uploads/1/3/0/6/130621744/ad418977f12.pdfIn PDF document text
    • http://cincoranchpoolbuilders.com/uploads/1/3/0/7/130775912/4645462.pdfIn PDF document text
    • http://hostmaster.koffi.co.uk/uploads/1/3/0/6/130603944/9e9180ea1814.pdfIn PDF document text
    • http://gogotrain.eu/uploads/1/3/0/3/130313345/5217504.pdfIn PDF document text
    • http://www.saranyasrinidhi.com/uploads/1/3/0/2/130289479/8a2818cb8583.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006805.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6805 8144 bytes
SHA-256: 1e14f50d28ad293bf552c8c24f4d1bc0ce58d32585b6441594a57ee52e2e105a
font_01_sfnt_off000086f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86F3 19184 bytes
SHA-256: 1f77aec24aa3845561297721b9f12596dfbbae650e35d427671b443c476cea3a