Malicious PDF — malware analysis report

Static analysis result for SHA-256 e74aff4398b2e69b…

MALICIOUS

PDF

37.0 KB Created: 2020-04-14 08:07:29 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 8c46715d593477be0e20ce9a34f1092f SHA-1: b1f6cdb37b1e2deefd1c6baf98e040bd56ef5dd0 SHA-256: e74aff4398b2e69ba3ff1eeaea69ddca3736e8bae09c0c9f520021c1ef6a02d3
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 are numerically or generically named, suggesting a link farm for SEO poisoning. The document body text, though partially corrupted, contains references to 'Pearson education inc 5 answer key science', likely a lure to attract users searching for educational materials. The embedded links point to various domains, all of which are likely hosting malicious content or further redirects. 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://fmjo.net/uploads/1/3/0/6/130605120/130605120.html#pearson+education+inc+5+answer+key+science
    • http://askjj.me/uploads/1/3/0/2/130271224/6374a9590.pdf
    • http://haitivillageproject.org/uploads/1/3/1/3/131380894/nukojeluk.pdf
    • http://everything-4us.com/uploads/1/3/0/9/130969529/08cd76340.pdf
    • http://hindsqr.com/uploads/1/3/0/7/130738578/favabixapa-pifubokuwava-mumolivizetip.pdf
    • http://toonsetcompagnie.com/uploads/1/3/0/2/130273799/4789981.pdf
    • http://answerit.ca/uploads/1/3/0/6/130620345/kisawinas.pdf
    • http://mirroredgecleaning.com/uploads/1/3/0/4/130435659/6036519.pdf
    • http://hotelboudoir.com/uploads/1/3/0/2/130272428/towixigorojejadex.pdf
    • http://donwilsonkibera.com/uploads/1/3/0/2/130289494/fulizuloligojukusaj.pdf
    • http://beforeandafterking.com/uploads/1/3/0/7/130775012/143634.pdf
    • http://myleombreshow.com/uploads/1/3/0/5/130550960/renaxosekot.pdf
    • http://bunburymarriagecentre.com/uploads/1/3/0/7/130740502/fivabupe.pdf
    • http://chronicedibles.net/uploads/1/3/1/4/131406273/cd66b.pdf
    • http://eurua.net/uploads/1/3/0/8/130813314/gusujejabewa.pdf
    • http://topofillinois.org/uploads/1/3/0/6/130605383/f41479824c3.pdf
    • http://eurua.net/uploads/1/3/0/8/130813314/gusujejabewa
    • 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_off0000667c.bin
ac55f5c1107bc28b8cbe03ba885328ae506e048527d3cd8ecd5a7e422d84234a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x667C 8648 bytes

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