Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b8e384e9a243dcf…

MALICIOUS

PDF

37.9 KB Authoring application: Serif PagePlus
MD5: be571395ef250db60235a9de6e798e8e SHA-1: 493e82a9696ca3d4e6d119127f158e8f53ea0a07 SHA-256: 8b8e384e9a243dcfd81a16f5f774e9a10136f5671c0261297836a59b36988aef
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded external links, a technique commonly used for SEO poisoning or to direct users to malicious websites. The ClamAV detection and ML classifier strongly indicate malicious intent. The document body, though heavily truncated and containing non-readable characters, appears to be related to financial calculators, potentially a lure for phishing or malware delivery.

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://autodiscover.bohannonfilmvideo.com/uploads/1/3/0/2/130288603/pefivo.pdf
    • http://redeeminghope.net/uploads/1/3/0/7/130775049/c007aaa.pdf
    • http://www.rds-locksmiths.co.uk/uploads/1/3/0/4/130488412/fomolu_digapowuxe_xinonixeremop_litefileju.pdf
    • http://mta-sts.mail.jampireproductions.com/uploads/1/3/0/5/130540290/ff89dee8ffc81f9.pdf
    • http://needlefreeconnector.com/uploads/1/3/0/6/130603724/2694110.pdf
    • http://human-touch-therapeutics.com/uploads/1/3/0/6/130620154/gujivetikilutam-vimagamulereru-desibotodunokum-tawakapisomofup.pdf
    • http://bubblebag-australia.net/uploads/1/3/0/2/130270812/9538786.pdf
    • http://dowelchair.com/uploads/1/3/0/6/130621349/dosuwabor.pdf
    • http://noblegoldens.com/uploads/1/3/0/7/130739234/7934452.pdf
    • http://www.josephturyatemba.com/uploads/1/3/0/9/130969763/videfesawafos-kipuwowelu-meselo.pdf
    • http://beyondhillco.com/uploads/1/3/0/2/130271078/9054965.pdf
    • http://english-log-cabins.com/uploads/1/3/0/3/130313585/bomapagorixigi_muguwerarag.pdf
    • http://flatearthgathering.org/uploads/1/3/0/8/130813787/8af232da6.pdf
    • http://alittletwisted.net/uploads/1/3/0/3/130323164/bojefenikamafef.pdf
    • http://www.mail.rainiernetworks.com/uploads/1/3/0/8/130813876/66798.pdf
    • http://monkeesconcerts.com/uploads/1/3/0/6/130604497/0da282aeadde98f.pdf
    • http://repulsebaygardens.com/uploads/1/3/0/4/130483216/ginapukiti.pdf
    • http://remix.mka.org/uploads/1/3/0/2/130289669/sules.pdf
    • http://myhilocollection.com/uploads/1/3/0/6/130604715/bbc136b098a8.pdf
    • http://nutmeg-labradoodles.com/uploads/1/3/0/3/130379160/tidobifuxotefado.pdf
    • http://landonfoundation.org/uploads/1/3/0/7/130739093/pegikujodab.pdf
    • http://miraalhammadi.com/uploads/1/3/0/4/130476736/vugotu.pdf
    • http://rustysrusticroost.net/uploads/1/3/0/5/130544067/130544067.html#car+loan+calculator+amortization+table

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003195.bin
195a7e1a544bba43e346c6ced607e186d5a65401cf2855d0d221481d8aa089a2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3195 8176 bytes

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