Malicious PDF — malware analysis report

Static analysis result for SHA-256 022ca9f9cb1bb837…

MALICIOUS

PDF

74.4 KB Created: 2021-03-19 08:00:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 03fcd6b5f74e36ee1bca67300ddb7ac4 SHA-1: dd7fae26d14156d2096375e77fa0150b9b553216 SHA-256: 022ca9f9cb1bb8378baced48cbb36a168a387da45918004a91749d3893e501f5
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains an embedded URI that directs the user to a URL associated with phishing lures. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a malicious site, potentially for credential harvesting or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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 https://druttle.ru/wix?keyword=eagle+scout+parent+letter+of+recommendation
    • https://cdn-cms.f-static.net/uploads/4366014/normal_6015bd43e962a.pdf
    • http://blockingscenery.com/9956937711pqpn0.pdf
    • http://tanivikovome.sportsontheweb.net/cancer_de_pulmon_2020_mexico.pdf
    • http://gejokakop.mygamesonline.org/43225922148.pdf
    • http://telgrm.site/bsnl_broadband_duplicate_billthjhm.pdf
    • http://dsv-trening.ru/the_wifes_story_questions_and_answers65c2l.pdf
    • http://krokoboko3.xyz/is_scrooge_on_tv_this_christmas_20193sh7a.pdf
    • https://webuseki.weebly.com/uploads/1/3/2/8/132814302/titukozonoweg.pdf
    • http://fozogadixanemo.iblogger.org/missguided_cargo_trousers_petite.pdf
    • http://thelandofbadideas.com/vonuvekenanujevatavinep2ua66.pdf
    • http://julivojurukumu.sportsontheweb.net/79397874271.pdf
    • https://cdn-cms.f-static.net/uploads/4467564/normal_602c15942550f.pdf
    • https://xilasofuvi.weebly.com/uploads/1/3/4/6/134651230/c958a31f09604cc.pdf
    • http://nofawemew.iblogger.org/vobatosotimosubuxino.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://sutexuvidag.myartsonline.com/john_deere_48_mower_deck_parts.pdf
    • http://mupufekugix.epizy.com/19976836817.pdf
    • http://zepizevut.atwebpages.com/42477572472.pdf
    • http://simarawi.epizy.com/how_to_describe_tree_at_night_mask_body_shop.pdf
    • http://gikawulav.rf.gd/lagafutodamiredela.pdf
    • http://vodobugatusexa.epizy.com/jolivekimibalowuva.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e5b5.bin
82c78c9340a16fac11b6925dea717d595b2b910e0e6f586a5549d5f51336be1f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE5B5 5432 bytes
font_01_sfnt_off0000f820.bin
49a22670803beca189c74f6166395ea439285e071d8e19a0ffa838156047e5b6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF820 10556 bytes

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