Malicious PDF — malware analysis report

Static analysis result for SHA-256 315b5b7fb79c8042…

MALICIOUS

PDF

52.4 KB Created: 2020-03-26 10:38:00 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-08-25
MD5: 3f7cf411356439808a1198a122f02c7c SHA-1: a4c8e6f03672cb0113fce4bc27df0cc22ea3e720 SHA-256: 315b5b7fb79c8042d0f0a33b8d13797b0b19e7adf246a68fd24bbeaf55040d8a
96 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded external links, a technique often used for SEO spam or to direct users to malicious sites. The document body contains text related to 'Twilight saga breaking dawn part 2 720p dual audio download', which is likely a lure to attract clicks on the embedded links. The heuristic 'PDF_SEO_LINK_FARM' strongly indicates this malicious intent.

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://rsrolab.com/uploads/1/3/0/4/130475936/130475936.html#twilight+saga+breaking+dawn+part+2+720p+dual+audio+download PDF link annotation
    • http://waibluegrasschapter.org/uploads/1/3/0/8/130874210/jakoxawujexona.pdfIn PDF document text
    • http://wwwspeakesfamilyassociation.org/uploads/1/3/0/5/130551231/tikenoxeje.pdfIn PDF document text
    • http://brianxavierapparel.com/uploads/1/3/0/2/130274199/zomakugulen.pdfIn PDF document text
    • http://newsolitude.org/uploads/1/3/0/8/130813818/529859.pdfIn PDF document text
    • http://fpspiritwear.com/uploads/1/3/0/7/130740616/gepeguxop.pdfIn PDF document text
    • http://juliaberry.org/uploads/1/3/0/6/130639892/mudozas.pdfIn PDF document text
    • http://osrsgpnow.com/uploads/1/3/1/0/131070527/vimasuwe.pdfIn PDF document text
    • http://www.steel-arts.co.uk/uploads/1/3/0/7/130775214/813252.pdfIn PDF document text
    • http://cartercarpio.com/uploads/1/3/0/2/130273735/sabajegogi-sozutozuwune.pdfIn PDF document text
    • http://kaylieculbert.com/uploads/1/3/0/8/130874130/2530076.pdfIn PDF document text
    • http://easyvoxbox.net/uploads/1/3/0/6/130621802/xepetemutukoner-nubituk-sugitigup-totarejeke.pdfIn PDF document text
    • http://mta-sts.mx.discovermichiana.com/uploads/1/3/0/2/130271245/zesuwevesofukake.pdfIn PDF document text
    • http://defiesmeasurement.com/uploads/1/3/0/4/130483765/1637959.pdfIn PDF document text
    • http://1015carolina.com/uploads/1/3/0/2/130271152/rajepafuxivov.pdfIn PDF document text
    • http://consideredthoughtfully.com/uploads/1/3/0/5/130550683/6600887.pdfIn PDF document text
    • http://andersonmobilehomepark.com/uploads/1/3/0/5/130590355/a7a555076ca75e6.pdfIn PDF document text
    • http://agroecologyinternational.org/uploads/1/3/0/4/130476216/4175239.pdfIn PDF document text
    • http://sookeyhairextensions.com/uploads/1/3/0/5/130551248/gulemudima_rumadafeguwono.pdfIn PDF document text
    • http://sunnybottom.com/uploads/1/3/0/5/130545557/7845b9bf.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
🗂 Part of campaign: ninefortyfilms.com 4 samples

Related samples 3

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000899d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x899D 8380 bytes
SHA-256: e5bdbb2dcac7cf06bb4ae211a11a863e4ee419ce196df8a866361a54bba9f978
font_01_sfnt_off0000aa03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAA03 16752 bytes
SHA-256: 25b5434c01f3d41eda7fbd72199506bcd4ea031f705846c5330177776ad09694

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