Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c325b73e5179929…

MALICIOUS

PDF

36.3 KB Authoring application: OpenOffice Draw
MD5: c119413c4fab9597777c94da5e2c723e SHA-1: d2459ec06d7c1e51196aac158c45091f14d8c5f6 SHA-256: 5c325b73e51799291d85c3fa2c6ab614b892e2619b7e21256add2df630ae2357
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to other PDF files, indicating a link farm or distribution mechanism. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of an attempt to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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://xxx666xxx.site/uploads/1/3/0/6/130621868/joletasadusodirisira.pdf
    • http://khatibenergy.com/uploads/1/3/0/6/130620650/begubejex.pdf
    • http://oneofakindbeauty.com/uploads/1/3/0/8/130813373/lubenevajurexo-rifotujem-gijowusut-pepudovimil.pdf
    • http://groupbrew.com/uploads/1/3/0/5/130550752/busivulibu_jufesugorufeneg_vanixo_bunemepi.pdf
    • http://padiacademysg.com/uploads/1/3/0/6/130620578/2356613.pdf
    • http://mta-sts.mx.highperformanceresumes.com/uploads/1/3/0/5/130543272/41a9a4.pdf
    • http://ion8r.com/uploads/1/3/0/7/130776434/127bda9716.pdf
    • http://nwcenterautos.org/uploads/1/3/0/6/130621024/gegaguforiteb_fufewujuguwenam.pdf
    • http://shelfstalker.net/uploads/1/3/0/2/130270823/fizogojimedub.pdf
    • http://yctl.org/uploads/1/3/0/6/130604752/4438381.pdf
    • http://www.barndoorrepublic.com/uploads/1/3/0/8/130813118/3316572.pdf
    • http://martazphotography.martazmusic.com/uploads/1/3/0/2/130287976/zapuzinuzozitejawelu.pdf
    • http://meansixteen.com/uploads/1/3/0/8/130873876/sipusuruxegujari.pdf
    • http://juvefc.club/uploads/1/3/0/5/130551364/zaxamoxiji.pdf
    • http://www.ascentscaffhold.co.uk/uploads/1/3/0/4/130483741/460df623.pdf
    • http://behindthecurtainofbylaw.net/uploads/1/3/0/6/130621083/babososifudulesop.pdf
    • http://eventsnewmexico.com/uploads/1/3/0/6/130604448/4517276.pdf
    • http://therealtyfinder.com/uploads/1/3/0/7/130775763/fca17.pdf
    • http://dominic-mckinney.pleasingfood.com/uploads/1/3/0/4/130435839/130435839.html#adverbial+clause+and+phrase

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f9d.bin
4ae27914863d6721b8c1ffb4c4ee2143bcffcac4004c0c88a967f8a9ed04892d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2F9D 8084 bytes

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