Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a02fcc808cb9113…

MALICIOUS

PDF

52.4 KB Created: 2020-04-05 11:43:33 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 8ea3ba0dc78cab7e0f47dc91788216f4 SHA-1: b2e4572386f709d743753188ffe2b4c284dd0864 SHA-256: 2a02fcc808cb9113171fbe0066978ba3bdd4c4d514fa36f48abed2b7eedb7774
62 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, a technique often used for SEO poisoning or to redirect users to malicious websites. The document body, though partially corrupted, contains a title related to scientific concepts, likely a lure to disguise the malicious intent. The heuristic 'PDF_SEO_LINK_FARM' strongly indicates a link farm strategy, aiming to drive traffic to numerous external PDF documents hosted on various domains.

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://witherlysgreenhouse.com/uploads/1/3/0/7/130739363/130739363.html#how+to+find+neutron+to+proton+ratio
    • http://elephantsandchoppingblocks.com/uploads/1/3/0/3/130323817/vejitegiwez.pdf
    • http://www.studiospacebristol.co.uk/uploads/1/3/0/2/130272101/3a21ff4fb1.pdf
    • http://t-tour.org/uploads/1/3/1/3/131380899/7773.pdf
    • http://conroedogwalking.com/uploads/1/3/0/5/130550693/e8420a.pdf
    • http://bobbiholyoak.com/uploads/1/3/0/6/130604515/bosekata.pdf
    • http://chinagardenct.com/uploads/1/3/0/8/130814526/pelabe_dezazugid_dumetowo.pdf
    • http://davenaaron.com/uploads/1/3/0/7/130740493/722759201f.pdf
    • http://appsusedparts.com/uploads/1/3/1/1/131163725/9741767.pdf
    • http://c6g6guitars.com/uploads/1/3/1/0/131070198/9192172.pdf
    • http://bargersvilleoverstock.com/uploads/1/3/0/6/130604359/zuwogiz.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_off0000922c.bin
f70b76ea16d1a30b0b86c2194bbe0922f4c5a86d35d825398b0fe648bd941e96		 pdf-font-stream PDF embedded font (sfnt) at offset 0x922C 10360 bytes
font_01_sfnt_off0000b726.bin
21bfb192bd001b57bf84c9bc7973400cda54f80cf62a8c7e297310c8f9dd9ebc		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB726 3988 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.