Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d9c96563ad40662…

MALICIOUS

PDF

48.3 KB Created: 2020-03-29 21:55:40 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 66b09ee68b5574ea40a63a93d0c8a3d2 SHA-1: 2a94b54675f37d549f8620e455fb6b5e21024596 SHA-256: 0d9c96563ad40662d9688ed6dcd6ef0eb83d1a377b5a4cb4e3932c93db361ffb
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1105 Ingress Tool Transfer

The PDF document contains a large number of external links to other PDF files hosted across numerous domains. This behavior is indicative of a link farm or a distribution mechanism for further malicious content. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a 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://northernrailleaders.com/uploads/1/3/0/2/130289317/130289317.html#tipos+de+botiquines+y+su+contenido
    • http://theaybgroup.com/uploads/1/3/0/7/130740338/f32822796.pdf
    • http://angelcmarten.com/uploads/1/3/0/9/130969925/0854ab1a9a68c4.pdf
    • http://miamientertainmentawards.com/uploads/1/3/0/9/130969705/91389ad0.pdf
    • http://joyfulwellnessinharmony.ca/uploads/1/3/0/6/130604627/c537a85e31db5.pdf
    • http://ne14.net/uploads/1/3/0/8/130814258/2920109.pdf
    • http://collectivecommitment.com/uploads/1/3/0/6/130620275/dikalepibimugi.pdf
    • http://youringenuitees.com/uploads/1/3/0/7/130775129/misopurola.pdf
    • http://groisilandco.com/uploads/1/3/1/3/131380973/3644945.pdf
    • http://worldofentopia.com/uploads/1/3/0/8/130874554/8933678.pdf
    • http://shirahstern.com/uploads/1/3/0/4/130483412/rodox.pdf
    • http://10mill.com/uploads/1/3/0/4/130477719/2453187.pdf
    • http://noisemakerindustries.com/uploads/1/3/0/7/130739405/sifoparifedokimuzaf.pdf
    • http://majasmote.net/uploads/1/3/0/2/130270743/05e609fb89.pdf
    • http://petstylz.com/uploads/1/3/0/2/130287547/4385247.pdf
    • http://brooklynspreciousanimalrescue.com/uploads/1/3/0/7/130775504/rebesemo.pdf
    • http://bakersfielddancecompany.com/uploads/1/3/0/5/130589103/3897315.pdf
    • http://nattilou.com/uploads/1/3/0/5/130588733/pujasegitap-rebavuras-galiwikomu-risakito.pdf
    • http://lorenzerik.com/uploads/1/3/0/6/130639607/d78e63.pdf
    • http://theautogenousquest.com/uploads/1/3/0/5/130588299/fd58fda9.pdf
    • http://unclejoesbarn.com/uploads/1/3/0/5/130539053/2076620.pdf
    • http://cklockandkey.com/uploads/1/3/0/2/130291588/kitesuzixovinifem.pdf
    • http://spenergy.net/uploads/1/3/0/7/130740323/da51b57ae.pdf
    • http://opdreef030.nl/uploads/1/3/0/7/130775545/wulifebewo.pdf
    • http://mail.neworleanshosts.com/uploads/1/3/0/6/130639500/balobagiwipa_levamabusesidix_meget_koxafajamuk.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_off00009224.bin
59d0bb6899e1c63adff17919edbfd03489fb265535d361b7a770f10426c31f65		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9224 9504 bytes

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