Malicious PDF — malware analysis report

Static analysis result for SHA-256 d65f6e6380161633…

MALICIOUS

PDF

67.3 KB Created: 2020-04-03 17:23:41 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: d3aa963ff041e144358f8cc5afe4d5ce SHA-1: a88e81d69b167ec105267c9d0977f4a2f59a7361 SHA-256: d65f6e63801616331d43baa12622407ec237001b31a9da09be70c1500f88d226
70 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, many of which are hosted on similar domains and appear to be part of a link farm. The document body text mentions an 'istqb foundation level agile tester guide', suggesting a lure to trick users into clicking on these links. The presence of numerous external links and the invoice/payment lure heuristic indicate a phishing or scam attempt.

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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://bardolls.com/uploads/1/3/1/4/131482950/131482950.html#an+istqb+foundation+level+agile+tester+guide
    • http://ameliamrogocka.com/uploads/1/3/0/3/130312950/e0b8b3.pdf
    • http://denvercreativeservice.com/uploads/1/3/0/5/130551754/3955e27.pdf
    • http://infowiser.org/uploads/1/3/0/7/130738603/jiworumexa.pdf
    • http://skilledlaborforce.net/uploads/1/3/0/7/130738830/kajajokejezaxu_vaxit_tupanomum.pdf
    • http://baizcompany.com/uploads/1/3/1/3/131381422/f25d855e8471c.pdf
    • http://bryantcondrey.com/uploads/1/3/0/2/130289453/xalupazega-fokekiv.pdf
    • http://pattern-miner.com/uploads/1/3/0/7/130739105/bojubigixogezenido.pdf
    • http://bocabaes.com/uploads/1/3/1/3/131380612/resajesukose.pdf
    • http://astylemavenscloset.com/uploads/1/3/0/5/130543976/8904539.pdf
    • http://fundforpublicadvocacy.org/uploads/1/3/0/2/130291365/vavakivokubewake.pdf
    • http://08bbf7.com/uploads/1/3/1/4/131407012/9ccaadaaffb353.pdf
    • http://phoneintakeform.com/uploads/1/3/0/4/130435582/goguvereze.pdf
    • http://timereorderedbible.com/uploads/1/3/0/2/130270985/nudakarinurujel-vomuzavatez-maletosil-xorexifumoxir.pdf
    • http://beachybrush.com/uploads/1/3/0/3/130323449/kimabefikomigiripi.pdf
    • http://mybrookfield.org/uploads/1/3/0/7/130775744/8558806.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_off0000db13.bin
faa9bf5b74d2d9c0f6b2e79cc86c6ea16ab55e134f4e63cd38bb11af931efa6a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDB13 9204 bytes

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