Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa6279a798c666e0…

MALICIOUS

PDF

40.0 KB Created: 2020-03-30 02:01:33 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 88b8327bbe9a39d70c3aa19e38e98670 SHA-1: 79849bfacf5582a2afe356aeb97b779fd57dc677 SHA-256: fa6279a798c666e091021e3b2956f18bc9176d585ba9a390c988489acbe187c3
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 with numeric or generic slugs. This suggests a link farm or SEO spam tactic. One of the embedded URLs, http://74-123-77-77.mgwnet.com/uploads/1/3/0/7/130776213/130776213.html#dremel+400+xpr+saw+attachment, is directly referenced in the document body, indicating a potential lure. The heuristic PDF_SEO_LINK_FARM firing confirms the presence of numerous external links, likely intended to drive traffic or host malicious content.

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://74-123-77-77.mgwnet.com/uploads/1/3/0/7/130776213/130776213.html#dremel+400+xpr+saw+attachment
    • http://sprzataniewspolnot-warszawa.pl/uploads/1/3/0/6/130639746/rijadegekapije_muxamateto.pdf
    • http://landscapingkeller.com/uploads/1/3/0/6/130639263/xijoxokuwal.pdf
    • http://prostogogolf.com/uploads/1/3/0/4/130435941/8912463.pdf
    • http://tmtc-dc1.thorne-moorends.gov.uk/uploads/1/3/0/6/130604838/f928d85fcee86f.pdf
    • http://cancer-dr.com/uploads/1/3/0/6/130604336/manuki_lamowexurogapu.pdf
    • http://brandnewskydogs.com/uploads/1/3/0/5/130540118/xujib_xupumoli_xometuzi.pdf
    • http://hairbytasha.org/uploads/1/3/0/4/130483682/megitanozisazupi.pdf
    • http://facco.me/uploads/1/3/0/2/130289558/5279227.pdf
    • http://mail.lisaorrart.com/uploads/1/3/0/6/130604723/nololatamisel.pdf
    • http://kaptive8moto.com/uploads/1/3/0/6/130639700/kakuxidi.pdf
    • http://hipflaskproductions.com/uploads/1/3/0/6/130621657/307fb72c05.pdf
    • http://moonvald.com/uploads/1/3/0/7/130775570/e2919339d.pdf
    • http://douglascarlson.info/uploads/1/3/0/3/130312969/7c34f7e.pdf
    • http://liquidloud.net/uploads/1/3/0/5/130550885/virer.pdf
    • http://vliegendestoel.nl/uploads/1/3/0/4/130435646/butikesegivetaxider.pdf
    • http://mauihauling.com/uploads/1/3/0/7/130776743/tosakig.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_off000067ee.bin
a77cfb72f531b831ac4aa8b8cb908ba25f4edd44017d3e96fee3420f11f07c86		 pdf-font-stream PDF embedded font (sfnt) at offset 0x67EE 8496 bytes
font_01_sfnt_off000088db.bin
7f00688a7fa1435ce172dcb840d0263443ffd2a42c0a0825bd4151cb67b82d29		 pdf-font-stream PDF embedded font (sfnt) at offset 0x88DB 2696 bytes

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