Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d0798cd096161a1…

MALICIOUS

PDF

43.0 KB Created: 2020-04-01 12:59:11 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: c7ff9444633c2947649379c3a235bb92 SHA-1: 623ec1c668c4f3971b889c2fc0f358300bdb3a78 SHA-256: 6d0798cd096161a1160163f697d1d06d44a17d40e586d29a7cf53998500bb619
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The document body, though partially corrupted, contains a URL that appears to be a lure for 'Jodha akbar tamil mp3 songs download'. This suggests a tactic to manipulate search engine results or to trick users into visiting potentially malicious sites. The ML classifier strongly indicated maliciousness, supporting the interpretation of these links as part of a malicious campaign.

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://sanprado.net/uploads/1/3/0/4/130475979/130475979.html#jodha+akbar+tamil+mp3+songs+download
    • http://anger-management-coach.com/uploads/1/3/0/4/130435520/jutinewufigoxofuto.pdf
    • http://crystalaccountingsolutions.net/uploads/1/3/0/3/130324451/7c02bff.pdf
    • http://besoulfood.com/uploads/1/3/0/4/130483872/vobemekawa_pebudopalete_kiridosu.pdf
    • http://ticinodomus.com/uploads/1/3/0/7/130738803/333437.pdf
    • http://bluecoyotesportsbar.com/uploads/1/3/0/2/130270966/raxozejonejafe_tilobepivu.pdf
    • http://villa-martinazzi.com/uploads/1/3/0/8/130874563/4bf9b60aa33.pdf
    • http://ceasultrezirii.com/uploads/1/3/0/8/130874671/nukimirewe.pdf
    • http://highendboutique.net/uploads/1/3/0/3/130323324/4961009.pdf
    • http://studioandstage.org/uploads/1/3/0/5/130551116/47692b337e8f7d.pdf
    • http://stevegraphos.com/uploads/1/3/1/3/131398429/sajiriliz.pdf
    • http://sievalent.com/uploads/1/3/0/6/130639305/povemuxefeb.pdf
    • http://duilawvt.com/uploads/1/3/0/5/130542831/ce1b91dd8330bef.pdf
    • http://capehousebandb.com/uploads/1/3/0/9/130969918/jujukemedufi.pdf
    • http://mygcrf.com/uploads/1/3/1/4/131437981/387f70d371.pdf
    • http://christophertrinh.com/uploads/1/3/0/9/130968947/ab500c316.pdf
    • http://rosiedraycottpilates.com/uploads/1/3/0/6/130620985/remawovu.pdf
    • http://gratiotcountyfreeclinic.net/uploads/1/3/0/5/130589008/2777784.pdf
    • http://renewitllc.com/uploads/1/3/0/2/130291971/dixelarisafage.pdf
    • http://mvsbusinesssolutions.com/uploads/1/3/1/1/131164113/toxitika.pdf
    • http://aces-academy.com/uploads/1/3/0/6/130621277/gumexofexetefupudo.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/
    • https://savannah.gnu.org/projects/freefont/
    • http://www.gnu.org/licenses/
    • http://www.gnu.org/copyleft/gpl.html

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006838.bin
32ab8790d55d29caa6f18fe6ffb54d2bfbf3f34b2d21cab60f4f5e3e7ecb0965		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6838 8448 bytes
font_01_sfnt_off00007e4c.bin
d21d03792dac6439fdd1247be32e1a279734bf9c0d90d7d818a7dbdd42cc9d61		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E4C 7680 bytes

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