Malicious PDF — malware analysis report

Static analysis result for SHA-256 6cf70bee67d7ca4f…

MALICIOUS

PDF

75.4 KB Created: 2021-03-22 04:34:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 62e44028bb9cb66f20d1fcd1ef80e356 SHA-1: 752d913f21bab4f83764eb10e766b78473933f1b SHA-256: 6cf70bee67d7ca4f1a3e038deb10dde227de9bafb39c38188ddce1bd938fba4e
156 Risk Score

Malware Insights

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

The PDF contains numerous external links, with a critical heuristic identifying it as a PDF link farm. One of the primary external URIs, 'https://fokemale.ru/award?keyword=arrival+of+the+queen+of+sheba+piano+pdf', suggests a lure to a malicious site disguised as a search result. ClamAV detection and ML classification further confirm its malicious nature, likely as a phishing or malware distribution vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://fokemale.ru/award?keyword=arrival+of+the+queen+of+sheba+piano+pdf PDF link annotation
    • http://tegor.xyz/breville_800esxl_repairih0lg.pdfIn PDF document text
    • https://kimogixolemalo.weebly.com/uploads/1/3/5/9/135964987/jusal.pdfIn PDF document text
    • http://poradoit1.site/64301849488jecas.pdfIn PDF document text
    • https://wikejawuwe.weebly.com/uploads/1/3/1/4/131437941/3906623.pdfIn PDF document text
    • http://repair-kvadrokopterov.ru/70590814738qwvtq.pdfIn PDF document text
    • http://proba7.xyz/whos_afraid_of_virginia_woolf_streaming_subtitles3ehxr.pdfIn PDF document text
    • http://tugrull.com/anti_malware_software_for_androidsdcr8.pdfIn PDF document text
    • http://parralax.net/34513706802dbsey.pdfIn PDF document text
    • http://ipoteka.net/83566462481ju03e.pdfIn PDF document text
    • https://ginufadep.weebly.com/uploads/1/3/4/6/134668932/1535606.pdfIn PDF document text
    • http://topsale.pro/8636371228cb2vj.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/7bf6dc92-2f21-41be-8eb1-0135a35eb482/62838576357.pdfIn PDF document text
    • https://s3.amazonaws.com/tojabixefova/job_interview_weakness_question_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1f51cf53-97fe-4420-b1dc-d90c60b77ef9/32493842188.pdfIn PDF document text
    • https://s3.amazonaws.com/xanunafojuloki/blessing_of_bebe_ringtone_djpunjab.pdfIn PDF document text
    • https://s3.amazonaws.com/muwomapotumugi/57042027687.pdfIn PDF document text
    • https://s3.amazonaws.com/mexavofezoxi/37981406651.pdfIn PDF document text
    • https://s3.amazonaws.com/tufujifinobiro/9456284341.pdfIn PDF document text
    • https://s3.amazonaws.com/jiguwuzobozobaz/jadowejisoto.pdfIn PDF document text
    • https://s3.amazonaws.com/datarofapakil/adobe_reader_setup_for_pc.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8401fde2-f1b2-4d89-94f0-8c7921d3174a/easy_2_chord_guitar_songs_for_beginners.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dcf8c856-ef81-4e60-8061-98caba581fae/telugu_short_stories.pdfIn PDF document text
    • https://s3.amazonaws.com/jupevuxirapi/blazedvd_6_professional_free.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_off0000e409.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE409 5444 bytes
SHA-256: 937201f2806cc0634721bb5e3488c5a7a854589a0c02c134d4bde8920e5a4b7e
font_01_sfnt_off0000f684.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF684 12328 bytes
SHA-256: f2cedaad59a35b84a9ffa526b2fcfa00ca2274a03e7e91ed86290ee3c037e189

Open this report in the interactive analyzer, or submit your own file for analysis.