Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0739bc5134a578f…

MALICIOUS

PDF

50.9 KB Created: 2020-04-16 23:42:49 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 5cdc0a113ad9666d91c0fdd98b3a6262 SHA-1: 1bd82380aacecb754c3d9714c0e212c679de7965 SHA-256: a0739bc5134a578fdee8f575aca77b3b90a50e1637dc435f45b992ed8c9987fd
62 Risk Score

Malware Insights

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

The PDF file contains numerous external links, many of which are hosted on domains that appear to be part of a link farm. The document body, though partially corrupted, suggests a lure related to business templates. The presence of multiple PDF_SEO_LINK_FARM heuristics indicates a high likelihood of these links leading to malicious content or phishing sites. No scripts were extracted from this sample, limiting the ability to determine specific payload delivery mechanisms.

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://rvfbla.com/uploads/1/3/0/4/130476557/130476557.html#sap+business+one+blueprint+template
    • http://modernbrideinnh.com/uploads/1/3/1/0/131071231/660743.pdf
    • http://torrentphysicaltherapy.com/uploads/1/3/0/9/130969561/bdf199b7c2fe886.pdf
    • http://adventuresinedtech.com/uploads/1/3/0/3/130313057/54d3920c3.pdf
    • http://humanitiesandtechnologyreview.com/uploads/1/3/0/8/130814782/jagimajuzow.pdf
    • http://shopseason7.com/uploads/1/3/0/6/130620556/kigojidiputam-jexenezo-tumorenogipi-pekafofa.pdf
    • http://smc.today/uploads/1/3/1/3/131380985/jufinoxokipupuj-bones-gifonebobo-jujadipo.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000094e5.bin
bc34d196d40706d378b085d658f4f88381578e61f12888fd410013e49e6d91d6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x94E5 1680 bytes
font_01_sfnt_off00009c8b.bin
286b0ba4356218b9eaba9857bb0140b3617f4a57d228a52fa70240b4b49e0ab8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9C8B 9164 bytes

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