Malicious PDF — malware analysis report

Static analysis result for SHA-256 957c07c0bc7b5670…

MALICIOUS

PDF

39.4 KB Created: 2020-03-29 10:25:03 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: e9c6792dc6c72739482b83467c8c4ddb SHA-1: 9abeef37f0b7320edb330e56df722d2d42147c65 SHA-256: 957c07c0bc7b56705c27bdc06b02323fcdf1498c1ca5c0b5fa2b0ee9f9d61cae
72 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which are hosted on domains that appear to be part of a link farm. The document body, though partially corrupted, contains references to 'black baby reading flash cards' and includes multiple URLs, suggesting a lure to drive traffic to these sites. The presence of a 'visual download button' heuristic further supports the idea that the document is designed to trick users into clicking links.

Heuristics 4

  • 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
  • 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://carpetcleancary.com/uploads/1/3/0/5/130588927/130588927.html#black+baby+reading+flash+cards
    • http://paulaluethensoper.com/uploads/1/3/0/5/130588548/4262534.pdf
    • http://romelocaltourguides.com/uploads/1/3/0/5/130551086/5595869.pdf
    • http://haxdistribution.com/uploads/1/3/0/5/130590310/tolosiful-giban-koxizewanale.pdf
    • http://cfcgrp.com/uploads/1/3/0/4/130435734/e3b3051c66f00.pdf
    • http://divahangups.com/uploads/1/3/0/8/130874091/8a3be11.pdf
    • http://fietstaxischeveningen.nl/uploads/1/3/0/3/130313564/0c81bf200.pdf
    • http://whitneywhitman.com/uploads/1/3/0/2/130273803/e07631f565f40.pdf
    • http://www.azurdeplacements.fr/uploads/1/3/0/6/130620230/wuxesuwerumijogubox.pdf
    • http://huffmanshomestead.com/uploads/1/3/0/2/130289427/5541036.pdf
    • http://minyounglee8682.com/uploads/1/3/0/6/130604519/e8e49f.pdf
    • http://www.parleyyouthfc.co.uk/uploads/1/3/0/7/130776589/4652422.pdf
    • http://ingenacel.com/uploads/1/3/1/1/131164023/wivufalu.pdf
    • http://iowajuneteenth.org/uploads/1/3/0/2/130274263/7085938.pdf
    • http://alliemerrick.com/uploads/1/3/0/4/130435766/db7c2148.pdf
    • http://www.firstclasscouriers.net/uploads/1/3/0/8/130874573/f19870480b324.pdf
    • http://nahwahlacrosse.com/uploads/1/3/0/6/130621441/tifin_degiri_wemidobusojura.pdf
    • http://uniquepowersolution.com/uploads/1/3/0/5/130550834/gulirowifekido.pdf
    • http://hollandfotovideo.com/uploads/1/3/0/5/130588239/dewozeduvos.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006f20.bin
3c785571f09800484c7038a5c2506434a8f8ae637c071b9f94727c563bec272a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F20 8588 bytes

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