Malicious PDF — malware analysis report

Static analysis result for SHA-256 1fa8c3d57780ba04…

MALICIOUS

PDF

38.5 KB Created: 2020-04-14 10:19:24 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 5d829b9f8756d6f398aaccbba4821f1a SHA-1: 0a5a692d38abfeb3427e1a78ad30a91e95d6216d SHA-256: 1fa8c3d57780ba04fcff6cfad66de2fa2666306a75cc499f5c45f8740c1ca054
62 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, a technique often used for SEO manipulation or to redirect users to malicious sites. The document body, though heavily obfuscated, contains text suggesting it is a 'Checkbook register template free printable', likely a lure to encourage clicks on the numerous links. The primary technique observed is the use of malicious links to external resources.

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://kelbels.org/uploads/1/3/0/4/130488198/130488198.html#checkbook+register+template+free+printable
    • http://lakecharlescw.com/uploads/1/3/0/8/130873842/zixawuna_javirukel.pdf
    • http://rustydoobie.ca/uploads/1/3/0/5/130550914/xazos-livez-vilop-beduvotugujuge.pdf
    • http://jamesjcampbell.com/uploads/1/3/1/3/131384101/b9b9dcbb.pdf
    • http://sheilatheband.com/uploads/1/3/0/6/130621603/8513901.pdf
    • http://trulyvirtualtours.com/uploads/1/3/0/5/130539170/4356777.pdf
    • http://institutohug.com/uploads/1/3/0/4/130483345/gusimumavivuwo-netaxufesori.pdf
    • http://sevillaincorporated.com/uploads/1/3/0/4/130476378/9687174.pdf
    • http://ilove-graphics.com/uploads/1/3/1/4/131437409/8c201fb1.pdf
    • http://visualharmony.life/uploads/1/3/0/5/130544063/66bd57aa6a.pdf
    • http://lakegenevafudge.com/uploads/1/3/1/4/131438044/9de296fc4a5c.pdf
    • http://chbconline.com/uploads/1/3/0/6/130639445/305035.pdf
    • http://datatelecom.co.uk/uploads/1/3/0/8/130814402/giral.pdf
    • http://hands-of-karuna.com/uploads/1/3/1/3/131379990/vatopu.pdf
    • http://lakegenevafudge.com/uploads/1/3/1/4/131438044/9de2
    • 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_off00006fd9.bin
a8b713a559c54c23b6fccca75684c3d0097d13b6fdd93a30cafe583586869465
pdf-font-stream PDF embedded font (sfnt) at offset 0x6FD9 7616 bytes