Malicious PDF — malware analysis report

Static analysis result for SHA-256 be4d3e37c5fbe816…

MALICIOUS

PDF

76.0 KB Created: 2021-02-06 23:53:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 48e9afd02e6eaa1161e986c3da027b3a SHA-1: 7e6adb8d646a5216457f3c1261dc4aa654f72b8b SHA-256: be4d3e37c5fbe8163945cbf4db8c47eda420d31da16e899b95ca88550920ae6c
136 Risk Score

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
  • 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://maypoin.ru/wb?keyword=tv%20guide%20fall%202018 PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4486772/normal_5fc9ccbc1de3f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487399/normal_5fdb55ba5051f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4392864/normal_5fc7fb700463e.pdfIn PDF document text
    • http://zabixalufam.iblogger.org/sonujinonetojenavena.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/befarekogol/minstrel_glast_heim_ragnarok_mobile_answer.pdfIn PDF document text
    • http://javasuk.epizy.com/39335676552.pdfIn PDF document text
    • https://s3.amazonaws.com/potamotaz/bardwell_fc_manual.pdfIn PDF document text
    • http://muvalinifotu.rf.gd/btw_aangifte_formulier_2019.pdfIn PDF document text
    • http://tibupud.epizy.com/bovee_wma3000b_android.pdfIn PDF document text
    • https://s3.amazonaws.com/taturi/falirutumujuzejidinof.pdfIn PDF document text
    • https://s3.amazonaws.com/fukezavazuj/mulabazijivutijone.pdfIn PDF document text
    • https://s3.amazonaws.com/wajibile/happy_rider_wheels_mod_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/vasofirida/jack_o_lantern_templates_printable.pdfIn PDF document text
    • https://s3.amazonaws.com/dubiditiginowo/amps_to_watts_calculator.pdfIn PDF document text
    • https://s3.amazonaws.com/taguxif/iam_751_boeing_collective_bargaining_agreement.pdfIn PDF document text
    • http://womopemi.epizy.com/47578043649.pdfIn PDF document text
    • https://s3.amazonaws.com/novipaliwid/24857332661.pdfIn PDF document text
    • https://s3.amazonaws.com/difigomisosak/army_acu_ocp_uniform.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_off0000e9c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9C7 5332 bytes
SHA-256: 3b1c57f82368d2f55626be2662d358212a4460fec76e3afafa285ac802103699
font_01_sfnt_off0000fc0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC0C 11372 bytes
SHA-256: 582fbcca71a99adc3cf56ceeb63a9bb42b4e91cbe29f92ef08e147e6be323772