Malicious PDF — malware analysis report

Static analysis result for SHA-256 f956202c0b3ab2e0…

MALICIOUS

PDF

32.5 KB Created: 2020-05-15 21:08:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 994fb93ddd4c1984371cdd61135eb278 SHA-1: daa5bc758b4331567917089527de2e728c609795 SHA-256: f956202c0b3ab2e028f20a086c164d9a647e091a19c1db2525cc04aa7dba8237
92 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, a technique often used for SEO poisoning or to redirect users to malicious sites. The document body mentions 'Bike race pro apk all bikes unlocked', suggesting a lure to download potentially unwanted or malicious software. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious link farm attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://sakarasjourneys.com/uploads/1/3/0/2/130272629/130272629.html#bike+race+pro+apk+all+bikes+unlocked
    • http://babybellychildbirth.com/uploads/1/3/0/8/130813511/adc9fb625925.pdf
    • http://thissideoftherainbow.net/uploads/1/3/1/3/131398258/rewuninafi.pdf
    • http://ideas-loft.org/uploads/1/3/0/4/130488073/rovabuxozoker.pdf
    • http://encountermanagementsystem.com/uploads/1/3/1/3/131380641/1354795.pdf
    • http://liegetogether.eu/uploads/1/3/1/4/131453588/14778e93f29a02b.pdf
    • http://wellnessally.com/uploads/1/3/0/7/130739839/684364.pdf
    • http://ballersbars.com/uploads/1/3/0/6/130639157/3760314.pdf
    • http://ferandhislife.com/uploads/1/3/0/6/130605376/vasupat.pdf
    • http://masseygavin.com/uploads/1/3/1/4/131409274/vixewepegox.pdf
    • http://himarkprecision.com/uploads/1/3/1/4/131407144/bamuluwitafigevuz.pdf
    • http://macoexpressinc.com/uploads/1/3/0/5/130551192/268508.pdf
    • http://shopsoharlem.com/uploads/1/3/1/4/131407310/fadelu.pdf
    • http://coworkwithchildcare.com/uploads/1/3/0/7/130775750/mufoxotulo.pdf
    • http://becomeacontractor.com/uploads/1/3/1/0/131070771/xexesuvezuxuda-lixud-gomilured-bogilineziseji.pdf
    • http://lonniefree.com/uploads/1/3/0/8/130815014/lidulemamifigixefo.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_off00005685.bin
6a8838ac009bb6dd7f35def061767ccc6a3608adbe336afffcc1e9eb790e6d7e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5685 9420 bytes

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