Malicious PDF — malware analysis report

Static analysis result for SHA-256 e954c2eb702bce15…

MALICIOUS

PDF

44.0 KB Created: 2020-03-08 00:33:40 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: f803f23d1a730e9226917f8dd585094d SHA-1: afc6bb51fda6eb1808e42815101b492c31dbc4e9 SHA-256: e954c2eb702bce150d767af1255cdfdce9569bbedc139ae3380f7e575fd54668
94 Risk Score

Malware Insights

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

The PDF contains numerous external links, a common tactic for SEO spam or phishing campaigns. The document body mentions 'Adobe audition 3 license key', suggesting a lure to trick users into visiting malicious sites. The ML classifier strongly indicated maliciousness, and the PDF_SEO_LINK_FARM heuristic confirms the presence of a link farm.

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://host.creativedatainc.com/uploads/1/3/0/6/130604355/130604355.html#adobe+audition+3+license+key
    • http://southernsadie.net/uploads/1/3/0/7/130739504/zovili_segetaxego.pdf
    • http://readyforretirement.net/uploads/1/3/0/6/130640174/9528546.pdf
    • http://www.truepathbuilders.com/uploads/1/3/0/2/130288301/dofulid-majugafubukodu-visobezixu.pdf
    • http://carpetlands.com/uploads/1/3/0/5/130538816/017b99a3.pdf
    • http://blogapna.com/uploads/1/3/0/3/130323163/wifenare.pdf
    • http://eng-of-eating.com/uploads/1/3/0/7/130776648/9049138.pdf
    • http://memorieslk.com/uploads/1/3/0/5/130539309/1214783.pdf
    • http://karenspetgrooming.net/uploads/1/3/0/2/130291662/b395d07cc686.pdf
    • http://aaronclements.org/uploads/1/3/0/4/130436166/7692510.pdf
    • http://actorsworkshopperth.com/uploads/1/3/0/5/130589057/vujugusafosiwujomis.pdf
    • http://wearejanedoe.com/uploads/1/3/0/6/130621429/aef8534cdc.pdf
    • http://gm-propiedades.com/uploads/1/3/0/7/130738789/sudepum.pdf
    • http://birdsbymail.com/uploads/1/3/0/7/130739598/74180785fb2bf4a.pdf
    • http://www.pariscm.com/uploads/1/3/0/5/130588195/resadawonozijak_tenum_tuvafuzediwopiw.pdf
    • http://moderntechnique.net/uploads/1/3/0/6/130639091/tedubovuz.pdf
    • http://mmccolorado.online/uploads/1/3/0/5/130590664/jenejurix.pdf
    • http://ninjatechnologies.com/uploads/1/3/0/7/130739147/6105854.pdf
    • http://www.alicefayesnotebook.com/uploads/1/3/0/4/130477351/najova.pdf
    • http://nc-zeitgeist-foundation.org/uploads/1/3/0/3/130313179/346e43189.pdf
    • http://mountaingalsbookkeeping.com/uploads/1/3/0/4/130489437/42ecebee93538.pdf
    • http://rkfest.com/uploads/1/3/0/7/130739086/kelizifev.pdf
    • http://dadeclinic.com/uploads/1/3/0/6/130621625/5726622.pdf
    • http://miguelonmusicproductions.com/uploads/1/3/0/2/130270958/979fa.pdf
    • http://ritasbeautysupply.com/uploads/1/3/0/5/130551132/3056277.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_off00007d75.bin
6d22a6358294b862a4fdd75874282de4a8a2ed729073d9bda099a4e37504d861		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D75 9412 bytes

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