Malicious PDF — malware analysis report

Static analysis result for SHA-256 0969e3108edd425f…

MALICIOUS

PDF

78.9 KB Created: 2021-02-10 15:09:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: fcb700dcd010d470eb465c355938841c SHA-1: 8206146ff113abf76cc27d8ace9a4e415ee9f829 SHA-256: 0969e3108edd425fe273a355f846edeb79bf0a97953284da4b035ca5a8ae81df
214 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains numerous embedded links, many of which point to suspicious domains and one is explicitly identified as a malicious redirector. The document body, though partially corrupted, contains text related to a "PSN code generator 2020", suggesting a phishing or scam lure. The presence of multiple external PDF links, some of which are likely part of a link farm, indicates an attempt to distribute malicious content or traffic. The ML classifier and ClamAV detection strongly support the malicious verdict.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/123?utm_term=psn+code+generator+2020 In PDF document text
    • http://bestunew.xyz/wheelers_oral_anatomy_download_freevskh7.pdfIn PDF document text
    • https://cdn.sqhk.co/vedanoderifu/FkhagiT/infinity_sign_copy_and_paste.pdfIn PDF document text
    • http://4kuhd.me/dragon_wallpaper_hd_download_freeo2ad7.pdfIn PDF document text
    • http://legalvictory.group/86374894806xf944.pdfIn PDF document text
    • http://podarokinsta365.site/49952440181xhylp.pdfIn PDF document text
    • http://usmileofficial.site/sekuwoware3ldf5.pdfIn PDF document text
    • https://cdn.sqhk.co/gatidixon/iaMqS9B/what_does_god_symbolize_in_the_color_purple.pdfIn PDF document text
    • https://cdn.sqhk.co/benibavagoge/aM82jh8/9185063379.pdfIn PDF document text
    • https://xaxaguxoludu.weebly.com/uploads/1/3/4/5/134519627/figipuboxalogolega.pdfIn PDF document text
    • http://startask.ru/swat_tv_show_episode_guide6mlca.pdfIn PDF document text
    • https://budojidotepaso.weebly.com/uploads/1/3/5/3/135312143/9586617.pdfIn PDF document text
    • https://neloramobipetez.weebly.com/uploads/1/3/1/4/131407165/sivumexikuzakopi.pdfIn PDF document text
    • http://effektzhizni.ru/firiwosuzeladubun0h9g.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/salade/11627782085.pdfIn PDF document text
    • https://s3.amazonaws.com/fizup/adding_mixed_numbers_worksheet_common_core.pdfIn PDF document text
    • https://s3.amazonaws.com/lomuper/36330318184.pdfIn PDF document text
    • https://s3.amazonaws.com/nonabafat/26371702871.pdfIn PDF document text
    • https://s3.amazonaws.com/tulosa/transcendental_etudes_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/vedexajawo/formal_email_ending_greetings.pdfIn PDF document text
    • https://s3.amazonaws.com/wopari/99388622187.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_off0000f46c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF46C 5352 bytes
SHA-256: 96f1818d3892b462a6be6004ef18aba4a43589bd175b557e180191729f2fcfa5
font_01_sfnt_off000106a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x106A8 11780 bytes
SHA-256: da9bac8ec5792982555fb3cc84615a54511de1826717d83af22ec5fc8ecf5779

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