Malicious PDF — malware analysis report

Static analysis result for SHA-256 1214960dac69e338…

MALICIOUS

PDF

74.5 KB Created: 2021-03-31 22:14:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: af27c0b08975f06479539f1cec04f2dd SHA-1: 79b9b85b7ecc1daa091da6e2ec525540d9a09187 SHA-256: 1214960dac69e3385dc005d9f63312c8ef6e2584024eed9edc60dd90f6741f03
156 Risk Score

Malware Insights

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

This PDF document is classified as malicious by ML and ClamAV, and contains a large number of external links, indicating a link farm or phishing attempt. The document body, though heavily obfuscated, appears to be a lure related to 'Wahl clippers'. The presence of numerous external links, including one identified as a potential link farm, suggests the primary goal is to redirect users to malicious or phishing websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 5

  • 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-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://ponafet.ru/strik?utm_term=how+to+fix+my+wahl+clippers
    • http://saripituxupagek.sportsontheweb.net/catalogo_ikea_2020.pdf
    • https://cdn-cms.f-static.net/uploads/4458824/normal_60144039985a8.pdf
    • https://static.s123-cdn-static.com/uploads/4421210/normal_5fc675bba6b70.pdf
    • https://cdn.sqhk.co/posebozej/hgH5igp/rrb_alp_technician_answer_key.pdf
    • https://cdn-cms.f-static.net/uploads/4464077/normal_605571442eb8f.pdf
    • https://cdn.sqhk.co/zimajigon/igcgcDv/94356197067.pdf
    • https://cdn.sqhk.co/jumifokujuje/22nZdic/vewalumepemaz.pdf
    • https://cdn.sqhk.co/fidapulano/jaPjC2z/68398939302.pdf
    • https://cdn.sqhk.co/mewovegid/iJ1gJ9c/57976775947.pdf
    • https://cdn.sqhk.co/jututumogu/hiif1Ku/lenovo_yoga_c740_14iml.pdf
    • https://wupasatotoke.weebly.com/uploads/1/3/4/6/134602231/95c7aac.pdf
    • https://vaturelola.weebly.com/uploads/1/3/4/7/134704713/laxufatujepowa-nakapefejugalol-guvofegirosez-pivitug.pdf
    • http://kaboliwup.mypressonline.com/best_economics_books_for_beginners.pdf
    • https://cdn.sqhk.co/jememobak/dhdlvgh/weight_watchers_points_plus_applebee_s.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/vofadoloves/worthy_of_it_all_chords_g.pdf
    • http://vumamuv.myartsonline.com/aptransco_syllabus_for_eee_2020.pdf
    • https://s3.amazonaws.com/sajezife/after_we_collided_movie_on_netflix_uk.pdf
    • http://lufevexos.atwebpages.com/acta_constitutiva_de_una_sociedad_cooperativa_mexicana.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_off0000e485.bin
19e48654104dab660cf5be1733e274e4dc9eccd8b207fa238641df7bef8f8787		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE485 5480 bytes
font_01_sfnt_off0000f718.bin
620c7713d34adf2273868241b2faa3c80902d8934134a019553b78fa79e6b672		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF718 10772 bytes

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