Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1f89573069a9176…

MALICIOUS

PDF

42.6 KB Created: 2020-03-12 04:10:10 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: d0b0ca26b731b5ff5aad3283f2a68335 SHA-1: 84671714179f3b9099397eaae6f7f4a23689c03d SHA-256: e1f89573069a9176c27cf045d7f84821b34d57096688c9574ccf3c3942d770d2
94 Risk Score

Malware Insights

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

This PDF document exhibits characteristics of a malicious lure, specifically a fake software download. The document body contains text referencing 'Adobe acrobat reader version 7.0 free download' and numerous external URLs pointing to PDF files, suggesting a link farm designed to distribute further malicious content or lead users to phishing sites. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious download or phishing attempt.

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://74-123-77-253.mgwnet.com/uploads/1/3/0/2/130272930/130272930.html#adobe+acrobat+reader+version+7.0+free+download
    • http://truegritwithgrace.com/uploads/1/3/0/5/130588463/masudinuzu-dujubexekar-wavirokilil-rolon.pdf
    • http://plutusmerchants.com/uploads/1/3/0/5/130543870/6174637.pdf
    • http://thermofaxscreens.com/uploads/1/3/0/7/130776042/97debfa.pdf
    • http://missfoggscience.com/uploads/1/3/0/3/130379291/4397eb2d0dc.pdf
    • http://mckenziebible.com/uploads/1/3/0/5/130588635/rivev.pdf
    • http://www.sophiehartphotography.com/uploads/1/3/0/5/130589373/jaked-xafag-wivaxerenuxiv.pdf
    • http://burchlangstaff.com/uploads/1/3/0/9/130969933/pemuwalasosavefi.pdf
    • http://noxonroadpta.com/uploads/1/3/0/3/130324092/sitakusekebid.pdf
    • http://hbdurward.com/uploads/1/3/0/2/130272250/f71aab9066a.pdf
    • http://christopherbrealty.com/uploads/1/3/0/7/130775557/4145031.pdf
    • http://www.janetbartlettgoodman.org/uploads/1/3/0/8/130813646/segaxipez.pdf
    • http://www.paperowlpress.com/uploads/1/3/0/2/130289581/2772628.pdf
    • http://mta-sts.mail.ericasteinhagen.com/uploads/1/3/0/4/130483428/kogemotaj.pdf
    • http://chantillyescaperoom.com/uploads/1/3/0/6/130640208/jitase-tuzekawibokak-kizegotewitejix.pdf
    • http://ksupayroll.com/uploads/1/3/0/9/130969631/gamaxaveb.pdf
    • http://root.caumorgans.com/uploads/1/3/0/6/130620337/sadinoxufon.pdf
    • http://wallymarket.com/uploads/1/3/0/8/130813320/3168638.pdf
    • http://www.corporatecenternorth.cassidyturleysites.com/uploads/1/3/0/4/130436020/rewuder.pdf
    • http://2017.renewablenations.us/uploads/1/3/0/5/130546392/7235428.pdf
    • http://grandviewlawnservices.com/uploads/1/3/0/6/130621873/0f36906ff888e9.pdf
    • http://shalong365yulechengkaihu.f18.ebkf.org/uploads/1/3/0/6/130604187/df6ad11ee53.pdf
    • http://vps25.pleasingfood.com/uploads/1/3/0/7/130776525/vodix.pdf
    • http://vidtoys.com/uploads/1/3/0/4/130478935/5010467.pdf
    • http://vidtoys.com/uploads/1/3/0/4/130
    • 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_off00007b00.bin
590550350addf2193292aeb52229f67da438f8b3b2a1bbde3073fd913b0959da		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B00 8144 bytes

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