Malicious PDF — malware analysis report

Static analysis result for SHA-256 7018f0120d898eea…

MALICIOUS

PDF

72.9 KB Created: 2021-03-07 07:37:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 2a8eae0b39038d298a920a1b7e07a3a0 SHA-1: 121e6e7f6d0391f6153f55ebcbe397738fe27783 SHA-256: 7018f0120d898eea2288a6f5e019be88f88bc1bee5c5b502dae26c91a83bd468
206 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://baarspo.ru/wix?keyword=ymca+state+swim+meet+2020 PDF link annotation
    • https://pofitokibifezaf.weebly.com/uploads/1/3/5/3/135394855/3683771.pdfIn PDF document text
    • http://frankiearvelo.com/trx_force_pull_up_program9r79x.pdfIn PDF document text
    • https://mebedepubini.weebly.com/uploads/1/3/0/8/130813558/6972017.pdfIn PDF document text
    • https://filavemegu.weebly.com/uploads/1/3/4/8/134883773/90e8a13b1a67e10.pdfIn PDF document text
    • https://dirotigakavomak.weebly.com/uploads/1/3/4/2/134235834/rulebasegep.pdfIn PDF document text
    • https://vukuzimina.weebly.com/uploads/1/3/4/1/134109202/bujuxujufivavab-mawev-jutefofixas-xafige.pdfIn PDF document text
    • http://ketousa.site/free_calligraphy_learning_bookskns49.pdfIn PDF document text
    • http://lnstagramverifiedsbadgesforms.com/tibunanogowulefijimupabaxzmaao.pdfIn PDF document text
    • https://cdn.sqhk.co/jojikoxazew/hfhigjq/womens_halloween_costumes_uk.pdfIn PDF document text
    • https://nowiwadigomu.weebly.com/uploads/1/3/4/0/134018048/6192104.pdfIn PDF document text
    • http://secret-empire.ru/how_to_draw_a_still_life_easyc0q3i.pdfIn PDF document text
    • https://ruxibudowivuk.weebly.com/uploads/1/3/4/7/134728491/8f0125f2d.pdfIn PDF document text
    • https://cdn.sqhk.co/nasubivapu/eBfthcr/13538997230.pdfIn PDF document text
    • https://cdn.sqhk.co/fotenulutis/eEjhbhe/short_stories_in_english_for_child.pdfIn PDF document text
    • https://pakitaxe.weebly.com/uploads/1/3/4/3/134318313/6853210.pdfIn PDF document text
    • https://cdn.sqhk.co/numokafas/Hjj9yij/99726849318.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/dinilederu/75605105786.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5506d07e-e5fd-452f-af6f-2e7ca61e69ba/8_limbs_of_ashtanga_yoga.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/495ab731-d87d-4ab2-aa1d-47e755475fc4/38113261156.pdfIn PDF document text
    • https://s3.amazonaws.com/nedijowewoded/botany_for_gardeners_an_introduction_and_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/754a9ee6-8e22-4807-9e6b-4ea32d749645/stihl_fs_56_rc_used_price.pdfIn PDF document text
    • https://s3.amazonaws.com/mupukesunobaga/bwakila_mkude_simba.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9726c12d-b7f3-4ed5-bae7-ea35f2f74e84/zoom_505_11_manual.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_off0000e0c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0C1 5144 bytes
SHA-256: 849720fadb4103ef1f5d2f6ab4e425af104ead9cc50c244d20d0b4a82299efba
font_01_sfnt_off0000f245.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF245 10628 bytes
SHA-256: 07c856baa59b90fc9d06fffc54b013c9a30221e7557d97bbf20c779aef9ed8b2