Malicious PDF — malware analysis report

Static analysis result for SHA-256 04418ca90a162bfe…

MALICIOUS

PDF

40.7 KB Authoring application: Poppler-utils
MD5: 74f63e39c0c7d6819eef5d08988f93ed SHA-1: 0fe0fdf8f920f03080c267288b9b64538d5e6e58 SHA-256: 04418ca90a162bfe9946f97390eb2390da20933cd325e2ba56c59ef740007336
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The ML classifier and ClamAV also flagged this file as malicious, with ClamAV specifically identifying it as Pdf.Phishing.TtraffRobotInstall. The embedded URLs are likely used to redirect users to malicious content or phishing sites, and the sheer volume suggests an attempt to manipulate search engine results or distribute malware.

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://floydfx.com/uploads/1/3/0/3/130379222/34d0444b156a13.pdf
    • http://gcseclub.com/uploads/1/3/0/6/130605162/vulejevosoxijak.pdf
    • http://www.mimineralbrokers.com/uploads/1/3/0/7/130776684/nozalebude_wapebuput_nirire.pdf
    • http://lectricwind.com/uploads/1/3/0/6/130621425/mebixiput_lelex.pdf
    • http://americanbedbreakfast.com/uploads/1/3/0/2/130270932/daduzonesap.pdf
    • http://perfectcreationsforyou.co.uk/uploads/1/3/0/4/130488833/mekifi.pdf
    • http://femmetotale.org/uploads/1/3/0/3/130313262/gedilaxuxu.pdf
    • http://ridgelyes.com/uploads/1/3/0/7/130776245/f2fb8d.pdf
    • http://appel-stores.shop/uploads/1/3/0/6/130604951/nejizaviwofof.pdf
    • http://favoritesbbq.com/uploads/1/3/0/6/130604983/da9dbc1f6a.pdf
    • http://www.everettclassroom.com/uploads/1/3/0/4/130435956/9120875.pdf
    • http://tenikajoyner.com/uploads/1/3/0/9/130969079/5149152.pdf
    • http://ips2-bdpresentation.com/uploads/1/3/0/7/130739500/db7f79ec2f09925.pdf
    • http://www.andreavasquezee.com/uploads/1/3/0/7/130739007/fazas.pdf
    • http://themannahattaproject.com/uploads/1/3/0/6/130604651/sexod.pdf
    • http://elitemoldremediationllc.com/uploads/1/3/0/3/130379272/bijago_nunasezujoleme_wotigi.pdf
    • http://civilsystemsinc.com/uploads/1/3/0/7/130739000/2418105.pdf
    • http://misfotografie.de/uploads/1/3/0/3/130379590/wotugivot.pdf
    • http://mattespeut.com/uploads/1/3/0/3/130313286/257312.pdf
    • http://pathfinder-health.org/uploads/1/3/0/6/130621135/nilosanid.pdf
    • http://asideofbread.com/uploads/1/3/0/6/130604056/3532110.pdf
    • http://www.anncruzconsulting.com/uploads/1/3/0/7/130776756/630356.pdf
    • http://icbrconference.com/uploads/1/3/0/7/130775918/gafodu_wutixe_buxudetafilij.pdf
    • http://www.torguish.co.uk/uploads/1/3/0/8/130813799/nazopabidoziwo.pdf
    • http://devs.stefanaarnio.com/uploads/1/3/0/2/130274269/130274269.html#nescafe+dolce+gusto+esperta+2+review

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003b3b.bin
715bb844e7d81f5e84e884f5dc4ccd220461bc3f9ef4de07746454e7c3640b63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3B3B 8268 bytes

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