Malicious PDF — malware analysis report

Static analysis result for SHA-256 57bd14317b16aaf2…

MALICIOUS

PDF

34.9 KB Created: 2020-04-13 14:16:01 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 576322aa158ad28fba1dad8b02314473 SHA-1: 553fc7d2c90765766e622b06772a14efb063377e SHA-256: 57bd14317b16aaf21e631770fa891caa7fd9ed3d2f461632987f1442a616d076
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF document contains a large number of external links, many of which point to similarly structured URLs on different domains. The document body text includes a question about finding Facebook draft posts, which serves as a lure to encourage users to click on the embedded links. The primary malicious link identified is http://lsusbillaportfolio.com/uploads/1/3/0/5/130539309/130539309.html#where+do+i+find+my+draft+post+in+facebook. This indicates a likely phishing or content-luring attack.

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://lsusbillaportfolio.com/uploads/1/3/0/5/130539309/130539309.html#where+do+i+find+my+draft+post+in+facebook
    • http://samuelgaray.com/uploads/1/3/0/5/130590036/dijetefuso.pdf
    • http://mysticmountainproductions.com/uploads/1/3/0/4/130489222/rimegewolowu_fezeket_zobopeju_zijuzukuven.pdf
    • http://digitalmediamarketingservice.com/uploads/1/3/0/3/130313453/sexapet_lunonafegaguwot.pdf
    • http://panissara.com/uploads/1/3/0/5/130551754/6138179.pdf
    • http://vaadrabaneiportugal.org/uploads/1/3/0/2/130270798/lamaromofa-tuwenufaro.pdf
    • http://hlrutbildningistockholm.com/uploads/1/3/0/5/130540507/delotoropet-pisipifune-kijezilejuruke.pdf
    • http://tdfcopy.com/uploads/1/3/0/7/130739933/nomefidomubibam.pdf
    • http://tdfcopy.com/uploads/1/3/0/7/130739933/nomefidomu
    • 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_off00005ee4.bin
5d6fffb698ca8d38d30d0a287e74d157bed250f2acad9744e5fec1ad47f5a5c2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EE4 8408 bytes

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