Malicious PDF — malware analysis report

Static analysis result for SHA-256 d37b12981aab1c62…

MALICIOUS

PDF

36.5 KB Created: 2020-03-20 04:09:31 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 4746622a2070c40ba4302a6a4681ce35 SHA-1: da61c97612ac97896751f22dbc1a7aa5d5d25743 SHA-256: d37b12981aab1c62cde7ede171f51a9b4f8598374fc1a4a74c510462610b7a6e
62 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, a technique often used for SEO link farming or to direct users to malicious content. The embedded links point to various domains, suggesting a broad distribution effort. The document body itself is largely obfuscated but contains references to the embedded URLs, reinforcing the attack pattern.

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://bytecubed.io/uploads/1/3/0/7/130739740/130739740.html#estructura+de+un+parrafo+de+desarrollo
    • http://www.monitheexplorer.com/uploads/1/3/0/7/130740089/lijuluzimu-rodapesutave-kukinebakugal.pdf
    • http://www.resa5adulteducation.org/uploads/1/3/0/3/130313427/6758801.pdf
    • http://mainstreettrojans.com/uploads/1/3/0/6/130639062/c9eaa78.pdf
    • http://adaptivetechusa.com/uploads/1/3/0/6/130621212/wafemoxeti.pdf
    • http://mail.dromosproject.com/uploads/1/3/0/5/130550838/toromurifosidit-fejalobasu-fapiruzobim.pdf
    • http://conexusvision.com/uploads/1/3/1/1/131164046/depodores.pdf
    • http://indigenous.agency/uploads/1/3/0/8/130874157/1d1fb9a3e639c6.pdf
    • http://gasandgrill.com/uploads/1/3/0/5/130543272/04b997415c7.pdf
    • http://myhealthacupuncture.com/uploads/1/3/0/2/130289277/sewev.pdf
    • http://femme-productions.co/uploads/1/3/0/5/130539763/af55ff7b.pdf
    • http://www.bohoodo.com/uploads/1/3/0/2/130289353/fazajixalexewi.pdf
    • http://warriorwomanwarehouse.com/uploads/1/3/0/2/130289649/63dde02ce3f2d5.pdf
    • http://literarycorridor.com/uploads/1/3/1/0/131070442/latusunufaxuvi.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_off0000674a.bin
2d33375fa8e096fecf4f1458d11546785d22046046f91aa9bf3dfec42cf48f8a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x674A 7716 bytes

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