Malicious PDF — malware analysis report

Static analysis result for SHA-256 4da072f4b08eb104…

MALICIOUS

PDF

45.9 KB Created: 2020-05-13 08:16:24 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 79edf02042fdc92e714da8f75cb533d3 SHA-1: 257b71c19ef32b6c02e586f96a1e1eef59c17c13 SHA-256: 4da072f4b08eb1044f2e4bf4f9bbe09ae37f975e3539635e6e4a66fa71387265
62 Risk Score

Malware Insights

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

The PDF document was identified as malicious due to a heuristic detecting a large number of external links, characteristic of a link farm or SEO spam technique. The embedded document body text, though partially corrupted, contains a URL that points to a suspicious domain. The primary purpose appears to be directing users to external, potentially malicious, web content.

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://augustadrywallexperts.com/uploads/1/3/0/7/130739754/130739754.html#impossible+test+christmas+answers+catch+the+elf
    • http://santicreations.com/uploads/1/3/0/7/130738615/berajuwadaxadaw-geraxevefiz-jarepolur-riximivagi.pdf
    • http://columbusddp.org/uploads/1/3/0/2/130292173/0909875bce6ab.pdf
    • http://thefivechamberensemble.org/uploads/1/3/1/3/131380717/vofigejudili.pdf
    • http://deeachstudios.com/uploads/1/3/0/7/130740462/55249f90.pdf
    • http://melodydawkins.com/uploads/1/3/1/1/131164358/vafapukemodo_lesig.pdf
    • http://infinitepossibilitiesmass.com/uploads/1/3/0/7/130739758/7240316.pdf
    • http://themakerstudio.com/uploads/1/3/0/2/130289386/zujamonikeleji.pdf
    • http://westechindustries.net/uploads/1/3/1/0/131071295/wunezibovofaxu.pdf
    • http://towprovo.com/uploads/1/3/1/4/131406809/f52fee529fa.pdf
    • http://crochet4nicu13.com/uploads/1/3/1/3/131379789/4911d5c.pdf
    • http://gordoncanyon.org/uploads/1/3/1/4/131437249/9265047.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_off0000871b.bin
ae9745f03fa951f73d5890e040eb1bcbf07eda0063d109d22d77680e0617919a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x871B 11164 bytes

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