Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff9f6f1ce468ebb5…

MALICIOUS

PDF

61.0 KB Created: 2020-03-24 19:43:52 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-07
MD5: 877f4dd563db0403d6a0a01eebc76901 SHA-1: cf54f3979701d742839cbd8d034dfbfbce181d38 SHA-256: ff9f6f1ce468ebb525216f6147e4c9d14e14c4ac9c47333761e417523a8bd183
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF document contains a lure related to a video game guide, but its primary function is to host a large number of external links. The heuristic 'PDF_SEO_LINK_FARM' indicates that this PDF is part of a link farm, likely designed to drive traffic or distribute further malicious content through the numerous embedded URLs. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://seizediem.com/uploads/1/3/0/7/130738998/130738998.html#darksiders+2+platinum+guide+ps4 PDF link annotation
    • http://joshuanagle.com/uploads/1/3/0/7/130776125/0ef99.pdfIn PDF document text
    • http://live-love-lotus.com/uploads/1/3/0/8/130813369/7bdb93.pdfIn PDF document text
    • http://odulver.net/uploads/1/3/0/4/130435601/3838dbf74e9f6.pdfIn PDF document text
    • http://christinetschida.com/uploads/1/3/0/4/130476850/manavenabozi.pdfIn PDF document text
    • http://southingtonhvac.com/uploads/1/3/1/0/131070792/gixud.pdfIn PDF document text
    • http://athenasmith.com/uploads/1/3/0/4/130435791/xuguwujujuxoguzijal.pdfIn PDF document text
    • http://ebc3.org/uploads/1/3/0/6/130621333/maxanidosewu-penowonodupibon.pdfIn PDF document text
    • http://www.airpodcentral.com/uploads/1/3/1/0/131071258/tomobalax_wekorixuwo_wutatatowux_jefibefixaled.pdfIn PDF document text
    • http://kountertops.com/uploads/1/3/0/3/130313410/635977372e28a.pdfIn PDF document text
    • http://eurekapopup.com/uploads/1/3/0/9/130969338/venijo.pdfIn PDF document text
    • http://hostmaster.petria.biz/uploads/1/3/0/7/130775268/vezuduv-zesizirifoki-bitamajenigofo.pdfIn PDF document text
    • http://analiselarkin.com/uploads/1/3/0/6/130620341/6960538.pdfIn PDF document text
    • http://www.jordanmaloney.com/uploads/1/3/0/5/130550775/60f64093e5a8d.pdfIn PDF document text
    • http://autodiscover.pedicureherent.be/uploads/1/3/0/8/130874570/xadowe_silewekibojap.pdfIn PDF document text
    • http://annabelchiarelli.org/uploads/1/3/0/5/130541924/rafeno_mojusu_zemiwela_waloxisepabaf.pdfIn PDF document text
    • http://oldschoolmechanics.com/uploads/1/3/0/6/130621484/pazovadigev_nefoluligi_fotamafabip_wuwixoraker.pdfIn PDF document text
    • http://vigilanttool.com/uploads/1/3/0/4/130436049/4939344.pdfIn PDF document text
    • http://sosessays.com/uploads/1/3/0/6/130640214/jelafusixoje_fagowabawatura_sokoz.pdfIn PDF document text
    • http://rem5vrlab.com/uploads/1/3/0/8/130815095/galutage.pdfIn PDF document text
    • http://shopluckybamboo.com/uploads/1/3/0/5/130588258/3392533.pdfIn PDF document text
    • http://webdisk.mirjamphotography.nl/uploads/1/3/0/5/130539329/9079221.pdfIn PDF document text
    • http://daniellevgoodwin.com/uploads/1/3/0/8/130814280/8233271.pdfIn PDF document text
    • http://imaginarymonsters.net/uploads/1/3/0/6/130605161/999058f.pdfIn PDF document text
    • http://designsbylex.com/uploads/1/3/0/3/130313208/diropikelojo_kokeno.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text

Related samples 4

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c3a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC3A4 8556 bytes
SHA-256: e9c3c82d99f2f5b814b0ed96d5252858e7d34b771eca24e32856c0174d4d140e

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