Malicious PDF — malware analysis report

Static analysis result for SHA-256 720836873df7210e…

MALICIOUS

PDF

58.6 KB Created: 2021-03-14 11:02:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 706a37b0eaf1ba6c82c4a245735008e5 SHA-1: f99e1a9021b289d5b8d013b2a836f966ca4bba4b SHA-256: 720836873df7210e473ef94e531540844f3ba1a800e2c5629494da86d8e4ba93
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains numerous external links, a technique often used for SEO link farms or to redirect users to malicious sites. The ClamAV detection as 'Pdf.Phishing.Trojan' strongly suggests a phishing or trojan distribution intent. Although no scripts were explicitly extracted, the PDF structure and the presence of embedded URLs indicate an attempt to leverage external resources for malicious purposes, likely spearphishing.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4012

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.
  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 https://bologen.ru/award?keyword=rationalize+the+denominator+worksheet+pdf
    • https://ragadavifomo.weebly.com/uploads/1/3/5/3/135306528/4084ff.pdf
    • http://stav-games.ru/xutidowuzuledawusipus3kwee.pdf
    • https://cdn.sqhk.co/ketixudolu/hajihhg/train_your_brain_60_days.pdf
    • https://mozesejute.weebly.com/uploads/1/3/1/3/131380505/robaroje.pdf
    • https://kiwakamumosa.weebly.com/uploads/1/3/5/9/135963193/43f62c8.pdf
    • http://pagebake.com/zombs_royale_unlimited_gems_apkatriz.pdf
    • http://foxiduwanati.mygamesonline.org/71077201583.pdf
    • https://cdn.sqhk.co/rifebonapesi/hhgcfz9/3ds_max_composite_map.pdf
    • https://genunilime.weebly.com/uploads/1/3/4/3/134344847/rimolukasikifug.pdf
    • http://hocostyle.ru/wilajijireti986lo.pdf
    • https://falopizesolirod.weebly.com/uploads/1/3/1/3/131379111/torijepuvusoz_fimeduvitan.pdf
    • https://wiwufupa.weebly.com/uploads/1/3/2/8/132814928/5375623.pdf
    • https://cdn.sqhk.co/lukejisuvawe/BKhajaC/fadiwotube.pdf
    • https://cdn.sqhk.co/xugosovemi/gibsPjj/space_wolf_second_omnibus.pdf
    • http://jikusofare.mywebcommunity.org/53866252349.pdf
    • http://consequences.space/273523827597mamy.pdf
    • http://vufajed.getenjoyment.net/28694911070.pdf
    • https://kofepuxola.weebly.com/uploads/1/3/4/7/134718869/gibofiz.pdf
    • http://molufipet.sportsontheweb.net/ssh_command_in_linux_with_examples.pdf
    • https://vipukawolatu.weebly.com/uploads/1/3/4/4/134486161/magegoxolevitekam.pdf
    • https://wogifirum.weebly.com/uploads/1/3/1/0/131070377/612338.pdf
    • http://meetraisins.club/the_true_story_of_the_three_little_pigs_printable4nqmp.pdf
    • http://samajusinifako.atwebpages.com/80912257140.pdf
    • https://02664c88-84e5-42fa-aae3-682d3a0d4328.filesusr.com/ugd/39d081_cdcfc5f9b45847fb80eeb193bd447965.pdf?index=true
    • https://3bcdeb60-9876-4d14-bc0a-1dd1632c647c.filesusr.com/ugd/16a96a_8daecc68f5be4bbf96f3a10ee64df21f.pdf?index=true
    • https://6f12065f-c45d-410c-b048-6ec23fb2b810.filesusr.com/ugd/02ccf7_931c895ea006483983df96e307d4cd7b.pdf?index=true

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