Malicious PDF — malware analysis report

Static analysis result for SHA-256 7df13caa0a864e36…

MALICIOUS

PDF

39.3 KB Created: 2020-03-08 00:53:01 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 3e13513a35410dfb2e746c3ded8795f1 SHA-1: 48fb5af6da7ef3c49b17135a25228feaad8f0d1e SHA-256: 7df13caa0a864e36eaf433715480f2e9ed5d9512eccfb5c5cf3bf05d15d5621b
62 Risk Score

Malware Insights

MITRE ATT&CK
T1598 External Remote Services T1204 User Execution

The PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files hosted on different domains, suggesting a link farm or content distribution tactic. The document body contains text related to guitar tabs and the authoring application, but the primary malicious activity appears to be the mass redirection 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://new.mgh-r.ch/uploads/1/3/0/5/130543740/130543740.html#another+brick+in+the+wall+tabs+guitar
    • http://lwkdesigns.com/uploads/1/3/0/6/130621214/9238436.pdf
    • http://74-123-72-185.mgwnet.com/uploads/1/3/0/3/130323174/lexezurijuwo.pdf
    • http://danielstorage.com/uploads/1/3/0/6/130605135/saxuxipax_kekazamejopivix_fosexur_birevu.pdf
    • http://hostmaster.hallandhines.com/uploads/1/3/0/8/130874021/basuluda.pdf
    • http://bbartbyangelica.com/uploads/1/3/0/3/130323600/c79e6c.pdf
    • http://yourbcrealtor.com/uploads/1/3/0/5/130542977/wuduzewetatix.pdf
    • http://mountaineerauction.com/uploads/1/3/0/5/130551341/1884409.pdf
    • http://mexitem.com/uploads/1/3/0/7/130739930/fujezobotati.pdf
    • http://odysseus-monitor.noc1.net/uploads/1/3/0/8/130874258/tewup_posul_wuvubejifepor.pdf
    • http://muziksingapore.com/uploads/1/3/0/7/130776673/nuwelulowu.pdf
    • http://terraeventssolutions.com/uploads/1/3/0/2/130288629/lirolotepan.pdf
    • http://ediballoons.com/uploads/1/3/0/5/130539990/wesode_rojigudoj_pulavanumuvibi_womef.pdf
    • http://yalcinerserhan.com/uploads/1/3/0/6/130639404/233f3f11bda37c.pdf
    • http://www.cloud9td.com/uploads/1/3/0/3/130313458/519417.pdf
    • http://pattayapropertymanagement.com/uploads/1/3/0/5/130589036/sugutuzi.pdf
    • http://metoohouston.com/uploads/1/3/0/6/130605166/25c3a595.pdf
    • http://untabvel.store/uploads/1/3/0/2/130272389/sotituredi.pdf
    • http://www.jenniferbarkerarttherapist.com/uploads/1/3/1/0/131070009/01f320a.pdf
    • http://www.anewjourneyawaits.com/uploads/1/3/0/5/130539204/jeluvovefutup_riduwufito_zivumopigimo_selamaregamewib.pdf
    • http://soychaiten.cl/uploads/1/3/0/7/130776641/besodoberepemav-pasilajejunesur-pojegobawof.pdf
    • http://fintechinvestmentbanker.com/uploads/1/3/0/4/130483350/270855.pdf
    • http://www.mbradfordhealth.com/uploads/1/3/0/8/130873995/tuzuliwibufakepo.pdf
    • http://gifts2go.shop/uploads/1/3/0/7/130738506/9199352.pdf
    • http://kresekbag.net/uploads/1/3/0/5/130551206/jilegiroxev_soxekefuwotizi_fuxug.pdf
    • http://respondhd.com/uploads/1/3/0/4/130476101/0b8e80.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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000715c.bin
ae1e377762dd9fd114a588512e85d3b8dad727309d89ed0adb8951bd788d2b1a
pdf-font-stream PDF embedded font (sfnt) at offset 0x715C 7556 bytes