Malicious PDF — malware analysis report

Static analysis result for SHA-256 b46c5a50eca748ae…

MALICIOUS

PDF

36.5 KB Created: 2020-04-11 06:55:26 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 6d0c214a2970e65d0c047ba0f03594f4 SHA-1: af110566c9015aea229461cf8d87868e9dd52e4e SHA-256: b46c5a50eca748aee0ac10b09e8c2c7d663aed5bac8600665c1e3112e766d6c8
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of external links, indicating a potential SEO link farm or a redirection mechanism to malicious content. The document body is heavily obfuscated and appears to be a lure related to a textbook. No scripts were extracted from this sample, limiting the ability to determine specific malicious actions beyond the link farm.

Heuristics 3

  • 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.
  • 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://webdisk.rodhillportraits.com/uploads/1/3/1/6/131607232/131607232.html#hachette+physique+chimie+terminale+s
    • http://ambrosioerodriguez.com/uploads/1/3/1/4/131406816/xivabomu.pdf
    • http://medconnectnz.com/uploads/1/3/0/7/130739192/fuderesaxagitolat.pdf
    • http://wheelchairjockey.com/uploads/1/3/0/6/130639928/zugasobez.pdf
    • http://imfireworks.com/uploads/1/3/1/3/131397996/sezem.pdf
    • http://mon-dossier-bancaire-en-ligne.com/uploads/1/3/0/3/130313026/libisoba.pdf
    • http://innerlinkservices.com/uploads/1/3/0/5/130550683/bivegiwesuwo.pdf
    • http://nobilitycrossroadssolutions.com/uploads/1/3/0/2/130289585/2848851.pdf
    • http://patriotcontainerhomes.com/uploads/1/3/0/7/130738871/a5edd8c271.pdf
    • http://www.rachaeldinsmoreart.com/uploads/1/3/0/3/130323774/01e7675f4eb31.pdf
    • http://jodeedean.com/uploads/1/3/0/6/130604465/4fbc0e2eda.pdf
    • http://my-english-lesson.us/uploads/1/3/0/3/130313495/govugevixe.pdf
    • http://mail.highfivebooks.org/uploads/1/3/1/4/131437736/be9e195.pdf
    • http://toadbarriers.com/uploads/1/3/0/3/130323131/f430d7c.pdf
    • http://reallypost.com/uploads/1/3/0/6/130604499/rewexoxubanumuv-rodinuzekoval-gizubovupofe-lazomuwizabij.pdf
    • http://my-rae-of-sunshine.org/uploads/1/3/0/8/130813866/riwepuniva_sifinifijim_befikusi.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_off000064f7.bin
0f3d36b45c8cb7844021cb0db69fa2d362ff46f44da6d8ea999ff8bdf2641edc
pdf-font-stream PDF embedded font (sfnt) at offset 0x64F7 8584 bytes