Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d33a0c19a6d8fec…

MALICIOUS

PDF

67.0 KB Created: 2021-03-04 04:01:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 3f0707652ec81a2bdca5b6429ab1618a SHA-1: 380452b666cae6a5bdd30a6c2bf0dd0aad7bdd65 SHA-256: 1d33a0c19a6d8fec8e5286c00f1bf85dbcbf822d8d7c38a77a1e5420a8a8f5a6
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://ponafet.ru/aws?utm_term=how+to+install+a+zmodo+camera PDF link annotation
    • https://funitaba.weebly.com/uploads/1/3/1/3/131380773/ccb20682d99b.pdfIn PDF document text
    • http://indital.fun/wukeditoxilovffar.pdfIn PDF document text
    • http://tdsevsvet.ru/vegataridobou618d.pdfIn PDF document text
    • https://vetuvixix.weebly.com/uploads/1/3/1/4/131437813/ravobozadafepukonet.pdfIn PDF document text
    • https://cdn.sqhk.co/wikaraxixi/ao5QtGj/7024537816.pdfIn PDF document text
    • https://cdn.sqhk.co/sugefixa/dDrhc7C/saudi_aramco_drone_attack_video.pdfIn PDF document text
    • https://cdn.sqhk.co/fefowofuk/didauIl/75132645328.pdfIn PDF document text
    • http://sentytld.online/g_shock_watches_for_mens_pricekwwt5.pdfIn PDF document text
    • https://cdn.sqhk.co/vusutesilo/sUIyogh/jedudakademukotola.pdfIn PDF document text
    • https://cdn.sqhk.co/vojeruzujuzi/W6Ridja/one_clue_crossword_bonus_gone_fishing.pdfIn PDF document text
    • http://noksipals.online/431863205179lm7x.pdfIn PDF document text
    • https://cdn.sqhk.co/dogutadova/ihciplE/reset_beats_x_bluetooth.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/sagotomagin/honey_garlic_chicken_thighs_sheet_pan.pdfIn PDF document text
    • https://s3.amazonaws.com/satulibaren/53185700990.pdfIn PDF document text
    • https://s3.amazonaws.com/sajezife/37954472849.pdfIn PDF document text
    • https://s3.amazonaws.com/tigewibejageju/template_ecommerce_joomla_3_free.pdfIn PDF document text
    • https://s3.amazonaws.com/sukedil/i_cross_my_heart_piano_sheet_music.pdfIn PDF document text
    • http://rapamed.epizy.com/hain_celestial_annual_report_2017.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c9e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9E7 5188 bytes
SHA-256: 15255b11510f91c5705833e6c2a241f56a1dc45ec9f41a90b3622d0c72068bd9
font_01_sfnt_off0000db87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB87 10352 bytes
SHA-256: 09e82977c20b16b80cd3a34da3fedb45db8730113918db23890d986f076c00d4

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