Malicious PDF — malware analysis report

Static analysis result for SHA-256 52ca048c3485e8e0…

MALICIOUS

PDF

40.8 KB Created: 2020-04-16 12:44:33 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 83481d584cf7d0200a355a8ed71a3b6b SHA-1: d80e915f779ca627c7de61595909bfe094c4685e SHA-256: 52ca048c3485e8e00900b71a4e8478892afc7adb608e37b371bc46a35b0dc83f
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a mass of external links, many of which are hosted on domains that appear to be part of a link farm. The document body, though heavily obfuscated, suggests a lure related to 'drop down menu in word template'. The presence of numerous PDF links, including 'http://tmariedesigns.net/uploads/1/3/0/2/130291358/a7b574d8.pdf', indicates a strategy to redirect users to potentially malicious content. The file's structure and the nature of the embedded links strongly suggest a phishing or malware distribution campaign.

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://fwcounseling.com/uploads/1/3/0/8/130874371/130874371.html#drop+down+menu+in+word+template
    • http://tmariedesigns.net/uploads/1/3/0/2/130291358/a7b574d8.pdf
    • http://alohalocker.com/uploads/1/3/1/4/131406356/5296216.pdf
    • http://bellabeading.com/uploads/1/3/0/7/130738667/bewefuxuwupo_gimiwinipewusa.pdf
    • http://goodsbygoldieroxx.com/uploads/1/3/0/7/130738974/rexofamowepub_puwowude_tigogoxiw_waboxawi.pdf
    • http://centralcbd.co/uploads/1/3/0/7/130776460/63c81587220f61.pdf
    • http://pendulumhealing.com/uploads/1/3/0/2/130289163/dowisovalirap-rasodosiniz-wudisoruzano.pdf
    • http://actsomalicommunity.org/uploads/1/3/0/8/130813644/vimedisefafigul-kelulav-xuboge-sapira.pdf
    • http://centralcbd.co/uploads/1/3/0/7/130776460/63c815
    • 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_off00006556.bin
2a4fac6a188c528d9437024f2daa2ccb30109ebaf17448b4f60a5f04e69e1891		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6556 7384 bytes
font_01_sfnt_off0000826c.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x826C 16036 bytes

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