Malicious PDF — malware analysis report

Static analysis result for SHA-256 9aa9adb64e08671e…

MALICIOUS

PDF

48.1 KB Created: 2020-04-22 01:18:30 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 769a11cea772e1ddb25bb00d420990a3 SHA-1: 64264debdf7dea268f70dd9e4a1b2719c985afcb SHA-256: 9aa9adb64e08671eb33f02015187883af9a9c6a286bae5874d64d9db95875cfd
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which point to similarly structured URLs on different domains, suggesting a link farm or SEO spam tactic. One of the embedded URLs, 'http://5pointauto.com/uploads/1/3/0/4/130488410/130488410.html#bluestacks+2014+free++for+windows+xp', explicitly mentions 'Bluestacks 2014 free for windows xp', indicating a lure to a potentially malicious download or phishing page. No scripts were extracted from this sample.

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://5pointauto.com/uploads/1/3/0/4/130488410/130488410.html#bluestacks+2014+free++for+windows+xp
    • http://lastinghope.org/uploads/1/3/0/7/130776847/5353bae.pdf
    • http://iluwow.com/uploads/1/3/0/6/130604777/midomokoker.pdf
    • http://xtremewithshea.com/uploads/1/3/0/3/130379429/tumutoto-luzomunobavev-wuxigugenetiji-vepugil.pdf
    • http://urawkenergy.com/uploads/1/3/0/4/130489152/2207927.pdf
    • http://geekdogma.com/uploads/1/3/0/2/130272370/mawufug.pdf
    • http://jackupwithjack.com/uploads/1/3/0/7/130775796/rasewufezin.pdf
    • http://wavingsun.com/uploads/1/3/0/7/130739764/xutogunaji.pdf
    • http://amicoffeecompany.com/uploads/1/3/0/6/130604222/5097557.pdf
    • http://divinesacredbirthing.com/uploads/1/3/0/6/130604715/lasiworoxinas-mukuka-jonudamefebited-ronal.pdf
    • http://taipeiplayswing.com/uploads/1/3/0/6/130621240/felezukakorep.pdf
    • http://sadiebarr.com/uploads/1/3/1/3/131398182/mopopugamasasotogimu.pdf
    • http://laketownship.info/uploads/1/3/1/4/131483214/rekina-fojupilofagig-nojidaku-bipugokamex.pdf
    • http://sabrinaandre.com/uploads/1/3/0/6/130621459/gimukukoripapuwepe.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_off00007df8.bin
22b4652228bb4a94d7b1318038b66b5741acebc027a58821594c66a2b7f87522		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7DF8 9008 bytes
font_01_sfnt_off00009ed9.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9ED9 16036 bytes

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