Malicious PDF — malware analysis report

Static analysis result for SHA-256 32f0d464e2d35f41…

MALICIOUS

PDF

33.8 KB Created: 2020-04-30 20:19:45 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 75ce6e4b134ad6249d4a4d1d0a4cee04 SHA-1: 9f43711e208a4d0ca7b3b48c3b4a991eb29bea4f SHA-256: 32f0d464e2d35f418c6c50bd8df972083cc64f7251d7dd29c5cc9943bf47f8c3
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a large number of external links, many of which point to other PDF files hosted on various domains. This suggests a link farm or SEO poisoning tactic to drive traffic to potentially malicious content. The document body contains the phrase 'Nautical almanac 1988 pdf free', which may be a lure to entice users to click on the embedded links. 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://gmchamberpatrons.com/uploads/1/3/0/7/130740556/130740556.html#nautical+almanac+1988+pdf+free
    • http://psychotherapeute-paris.net/uploads/1/3/0/4/130488213/vowemawezefegifa.pdf
    • http://mglccoaching.org/uploads/1/3/0/6/130621284/zevunafupidelur.pdf
    • http://alhaneen.info/uploads/1/3/0/8/130814145/dofafa-jufonup.pdf
    • http://districtmh.com/uploads/1/3/1/6/131637854/2680094.pdf
    • http://yellowroseservices.net/uploads/1/3/0/6/130639062/3915330.pdf
    • http://wkapparel.com/uploads/1/3/1/6/131606260/fd61a752686.pdf
    • http://cvarb.com/uploads/1/3/0/5/130547999/921405a6eca25b0.pdf
    • http://samanthafucile.com/uploads/1/3/1/3/131380627/nonodomug_robosozopuf_niminixisa_tefuzomi.pdf
    • http://sherbygang.com/uploads/1/3/0/6/130639129/soxirinulaju_jenibewepavu_torajalejaweso.pdf
    • http://gmconstructionlimited.com/uploads/1/3/0/8/130813997/waxonamodejo.pdf
    • http://gardeningthesoul.com/uploads/1/3/0/3/130313027/daliliwamibuvu.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_off00005d82.bin
28c97e7e0d396d1ad19dcb2971d1f8b3f1583b624b68158ccde55526880de9a5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D82 7980 bytes

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