Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d59839a3c2932ba…

MALICIOUS

PDF

41.8 KB Created: 2020-03-12 14:20:57 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-04
MD5: 59d82fae85d631eaab6ac1950eaafc29 SHA-1: 21e4788381dee36c705a6c2befb2d985fcd12f90 SHA-256: 1d59839a3c2932baea897ddd70083dbb5ae9d7a0a9223e23684a933717aa5646
104 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File

The PDF document contains a mass of external links, many of which point to other PDF files hosted on various domains, suggesting a link farm or SEO poisoning tactic. The document body mentions 'jpg to pdf windows xp', indicating a lure to download or interact with content related to this topic. The presence of numerous external URLs, including one that appears to be an HTML file with a similar theme, strongly suggests a malicious workflow aimed at redirecting users to potentially harmful content or downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://xinquanxunwangxinbao2wangzhi.br3h.com/uploads/1/3/0/4/130488181/130488181.html#jpg+to+pdf+windows+xp PDF link annotation
    • http://midwestinspartners.com/uploads/1/3/0/5/130539329/2969408b5b0ee.pdfIn PDF document text
    • http://southcharlottedems.org/uploads/1/3/0/5/130540286/rulexix-wexeke.pdfIn PDF document text
    • http://millie4good.org/uploads/1/3/0/7/130776674/nagabesiwuletakonuxi.pdfIn PDF document text
    • http://olivettebythesea.com/uploads/1/3/0/3/130313037/5cc3d1b69144b.pdfIn PDF document text
    • http://savannahceramics.com/uploads/1/3/0/5/130551298/9023234.pdfIn PDF document text
    • http://www.shopblackharpoon.com/uploads/1/3/0/6/130621812/kowezikudeneg_lozazado_lujifawu_fufokimogi.pdfIn PDF document text
    • http://borderlinkfarms.com/uploads/1/3/0/6/130621683/233696.pdfIn PDF document text
    • http://www.leandrobarriobero.com/uploads/1/3/0/4/130476830/1c1982eb493ec2.pdfIn PDF document text
    • http://veganohnemangel.com/uploads/1/3/0/7/130739238/2678641.pdfIn PDF document text
    • http://www.omahavirtualschool.org/uploads/1/3/0/5/130543293/lomivoxezup-kigugepa.pdfIn PDF document text
    • http://zerogravitymgmt.com/uploads/1/3/0/3/130323425/fotiwozapo-fejusiwamov-dabusobofu.pdfIn PDF document text
    • http://remou-te.com/uploads/1/3/0/4/130488924/1007342.pdfIn PDF document text
    • http://mta-sts.mx.lifefoursquare.com/uploads/1/3/0/6/130605302/luwowasiwevoxopuxulo.pdfIn PDF document text
    • http://www.lahabratamalefestival.org/uploads/1/3/0/6/130604150/5805675.pdfIn PDF document text
    • http://letstradeshirts.com/uploads/1/3/0/6/130605396/2ad37c51c04.pdfIn PDF document text
    • http://www.nattertowing.com/uploads/1/3/0/6/130620524/fopevuzidifesaxudoku.pdfIn PDF document text
    • http://www.debiom.com/uploads/1/3/0/4/130488955/3778333.pdfIn PDF document text
    • http://smalltrailersforhauling.net/uploads/1/3/0/6/130621307/21a420c20470ff.pdfIn PDF document text
    • http://mouthmud.com/uploads/1/3/0/6/130605204/xovesakekekeme.pdfIn PDF document text
    • http://webmail.a4crossfit.com/uploads/1/3/0/4/130494801/2234755.pdfIn PDF document text
    • http://tvwithoutcable.com/uploads/1/3/0/6/130639984/2bc2cb.pdfIn PDF document text
    • http://refugeespeaker.org/uploads/1/3/0/5/130539357/5975403.pdfIn PDF document text
    • http://belladesgagnes.com/uploads/1/3/0/6/130620604/zabixagu-ravulirejobufaw.pdfIn PDF document text
    • http://blueoxorganics.com/uploads/1/3/0/8/130814584/kutizamuwama.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text

Related samples 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000075dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75DD 9064 bytes
SHA-256: 88cd44469faffaf819e9133332e5b81d90ef93c4b562700631c8229a0db161bb

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