Malicious PDF — malware analysis report

Static analysis result for SHA-256 039f7c0b45066c1c…

MALICIOUS

PDF

428.1 KB Created: 2021-03-25 10:54:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 465f1e23f970743894841ab9594ac58e SHA-1: 256a5e2b51c2cfbed8a0dec531fa119d1f5d50b2 SHA-256: 039f7c0b45066c1c54f7751cb54a2929ca4fbdb13b2f699c1a239ed02e7fa13f
156 Risk Score

Malware Insights

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

The PDF document contains a high-severity heuristic indicating it is a phishing lure using an SEO redirector. The embedded URL, https://xezojetit.ru/wix?keyword=walter+rand+transportation+center+address, is likely used to direct users to a malicious site. The ML classifier also flagged the PDF as malicious, supporting the phishing attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7554

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
  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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://xezojetit.ru/wix?keyword=walter+rand+transportation+center+address PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4416514/normal_6040505eb3fb6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4494146/normal_6008a58f01728.pdfIn PDF document text
    • https://cdn.sqhk.co/woselukafo/ihUjcjf/ge_zoneline_single_packaged_vertical_air_conditioner.pdfIn PDF document text
    • https://cdn.sqhk.co/fowurona/ggNDiiy/chocolate_pudding_devil_s_food_cake_mix_recipe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454544/normal_5fced27a643a6.pdfIn PDF document text
    • https://cdn.sqhk.co/mewixamok/WMGq8ij/fupiramaxefexipilutonen.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389108/normal_5fd77600cdc44.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/afe75635-b6c8-4378-bb28-835431fa0f76/how_to_thread_singer_curvy_machine.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fd9d6238-d43d-4fea-9dd4-be7f394bc9a3/how_to_pair_a_sylvania_speaker.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4cedd154-eee2-4d7d-8f80-ccab41d256b7/jepevijevigovifuxedat.pdfIn PDF document text
    • https://s3.amazonaws.com/tupofelasujewas/belmont_report_ppt.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/03508d61-4ed3-4320-a49d-6719885aaf61/fonifixesanal.pdfIn PDF document text
    • https://s3.amazonaws.com/zafibimutadoti/46842494395.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a995cdd3-2d50-44f3-92a4-ba4d4826fb08/94163719920.pdfIn PDF document text
    • https://s3.amazonaws.com/fajeloninesitel/kikosaw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/78091074-b267-4935-b209-bdb1545b941b/zibozivupawi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3e95a3f1-b810-4f91-a7c0-33975673d12e/king_james_bible_commentary_free_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8571cd33-ca79-4586-8239-cd9db2e28799/black_and_decker_battery_hedge_trimmer_18v.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6134646d-b4c3-46b5-8d4d-2be6f798b94b/gemedubad.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/89aa902a-2968-4a1f-9aa1-e6294f523e9c/difference_between_dogs_and_cats_comedian.pdfIn PDF document text
    • https://s3.amazonaws.com/gazitif/o_que__marketing_digital_resumo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2270fc03-0b54-4609-868d-201e635ef4c2/97747732759.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1622836e-5736-4d48-96f4-36ef82617842/xipokov.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_off000663f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x663F3 5080 bytes
SHA-256: b926e6fa22ea01b582a38035b091606e7f9c29da59cac7e42540331cdde1549d
font_01_sfnt_off0006755e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6755E 11996 bytes
SHA-256: 38d187b3b7424de0247a6be46e474aee647468a07d41eeee15a74db0231cd319