Malicious PDF — malware analysis report

Static analysis result for SHA-256 51d9ff947e80afb2…

MALICIOUS

PDF

37.3 KB Created: 2020-03-23 04:36:39 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 727e4b20723adbb22fabfb76881203cf SHA-1: 105d566128ebb957810d65b0d8b3eed680f37f27 SHA-256: 51d9ff947e80afb211a9dcebeeb580c9de152e2e4d2ffc79ab9e14ae9ee2f28b
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, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm or phishing attempt. One of the embedded URLs, http://headblocks.org/uploads/1/3/0/9/130969761/130969761.html#proshow+producer+7+key+registration, directly mentions software registration, indicating a potential lure for users seeking software keys. The document body, though partially corrupted, also contains references to software and registration.

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://headblocks.org/uploads/1/3/0/9/130969761/130969761.html#proshow+producer+7+key+registration
    • http://livegenics.com/uploads/1/3/0/5/130551429/nobebese.pdf
    • http://carrouselmuseum.net/uploads/1/3/0/2/130272348/kakofavadogagig-nozidipimaguru.pdf
    • http://www.strategic-im.fr/uploads/1/3/0/5/130588728/b837abb.pdf
    • http://www.beautifulpinkk.com/uploads/1/3/1/1/131164075/komukodu.pdf
    • http://evereinerwsfportfolio.com/uploads/1/3/0/6/130620650/cdd2287f9d.pdf
    • http://b-24-thegreenhornet.net/uploads/1/3/0/5/130588506/6920526.pdf
    • http://simcoecountyliving.com/uploads/1/3/0/7/130739879/1d5641276.pdf
    • http://worldlywanderlust.com/uploads/1/3/0/2/130272387/xibafiwiwerog_kosepovok.pdf
    • http://carriebush.com/uploads/1/3/0/2/130287946/mefuzes.pdf
    • http://www.thechurch1689.com/uploads/1/3/0/8/130814769/wagajudasew-gipaxob-jurijexavesasig.pdf
    • http://icaymarketingconsultants.net/uploads/1/3/0/4/130483552/gedewil_poxinazapudow_tatamemimute_tufiw.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_off00006971.bin
dd32e6b0e876a1f38192b6ae778453fa2374a3964a1b21242e5196e229f8adb2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6971 8052 bytes

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