Malicious PDF — malware analysis report

Static analysis result for SHA-256 87425d36b47659f2…

MALICIOUS

PDF

39.0 KB Created: 2020-05-15 19:08:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3c24efdf89835ba11329788b13cfd4dd SHA-1: 722dd6e30868d8390d1b7f2079e20f44a525609e SHA-256: 87425d36b47659f2fcebd8abf246496dc3f6cd3fd3038ef8c3fd1ceed05ef945
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, detected by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting a link farm or a method to distribute malicious content across multiple sites. The document body is heavily obfuscated and contains some of the same URLs, reinforcing the link farm pattern. 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://handyasiain.com/uploads/1/3/1/6/131606282/131606282.html#bilateral+and+multilateral+trade+agreements+pdf
    • http://jalan2junkie.com/uploads/1/3/0/4/130478975/gelejoxom_xopokemiw_wosavenaxelawu_jefegajoxepabuw.pdf
    • http://etvetus.com/uploads/1/3/0/4/130476499/7074773.pdf
    • http://vivala-hemp.com/uploads/1/3/0/4/130476060/xowizexo.pdf
    • http://newmandiamonds.com/uploads/1/3/1/4/131438556/85ea1833346229c.pdf
    • http://pringlesautopromo.com/uploads/1/3/1/4/131408838/nasiseto-nibisebaxalo-zawujujiroputof.pdf
    • http://jessforcouncil.com/uploads/1/3/0/4/130483645/limaxubeme_nisuvikodefek_losovu_sedik.pdf
    • http://stowerslynch.com/uploads/1/3/1/4/131410818/1da12d1e5683d7.pdf
    • http://metdekroofing.com/uploads/1/3/1/3/131398046/fadelewofa.pdf
    • http://jmservicos.net/uploads/1/3/0/2/130288511/mibilesike.pdf
    • http://kaizenautoglass.com/uploads/1/3/1/8/131857565/968277.pdf
    • http://raindropcapital.net/uploads/1/3/0/5/130590224/b79d326e.pdf
    • http://themindfulsociologist.com/uploads/1/3/1/3/131382470/4228323.pdf
    • http://hicfmsp.org/uploads/1/3/1/3/131383624/ruteruka-bumugikasu.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_off00005a2c.bin
44f31fdf4dddc62687438213e884bc6c483645fbb80d1563fd0e647bada53b9a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A2C 9496 bytes
font_01_sfnt_off00007aed.bin
c988415812f594187b0a0ed75dc52802e798e1695b49bd300f8412a65040a449		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7AED 16204 bytes

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