Malicious PDF — malware analysis report

Static analysis result for SHA-256 41b1652652da610f…

MALICIOUS

PDF

72.9 KB Created: 2021-03-07 23:18:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 700e1e0aad43c4eb992fd9ac3e3fea77 SHA-1: d44e017eab2e561eb2d7a9b06502aa24265daae7 SHA-256: 41b1652652da610fe84d2991c062877fea7deab4aed9928328f22953f1ab741b
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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.
  • 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://jottigo.ru/wb?keyword=pathfinder%202e%20core%20rulebook%20pdf PDF link annotation
    • https://cdn.sqhk.co/murafabu/bvgcHaG/fitojazamurosevuxoforodis.pdfIn PDF document text
    • http://joteruraxa.22web.org/graco_milestone_car_seat_cup_holder_replacement.pdfIn PDF document text
    • https://cdn.sqhk.co/zaviresodew/gfijidV/74441723160.pdfIn PDF document text
    • http://rodigevofu.iblogger.org/semawovetesozamuguzilater.pdfIn PDF document text
    • https://cdn.sqhk.co/gixezovof/gf6kggJ/beautiful_wallpapers_for_laptop_full_screen_hd.pdfIn PDF document text
    • http://bebalezuve.medianewsonline.com/gezemuk.pdfIn PDF document text
    • https://cdn.sqhk.co/dabozijide/hcfhbib/57435628353.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://42e65457-ec34-4553-8979-78b6e302f774.filesusr.com/ugd/f1976d_ef8676671a634a1ab5a762df8f2032bf.pdf?index=trueIn PDF document text
    • http://konivad.epizy.com/xopijosadezelutivekun.pdfIn PDF document text
    • https://b00f38ea-0d13-4519-ab0f-1253f0d03ca0.filesusr.com/ugd/289c5e_21cc8bedc2b44625ad3b7d20e224208b.pdf?index=trueIn PDF document text
    • https://99470c7d-c692-4648-a7b8-36ea19db2883.filesusr.com/ugd/ab059d_97f7774dcde34f6cbc6acb6608ec3381.pdf?index=trueIn PDF document text
    • http://kivekedifewu.rf.gd/ponakewiluda.pdfIn PDF document text
    • http://feferabi.atwebpages.com/formas_de_comunicacin_oral_en_los_pueblos.pdfIn PDF document text
    • https://21e323bd-7fdd-46e9-a6c7-4880e76d7610.filesusr.com/ugd/0a51c1_4321ce9e483647699aa03ebe207c4bad.pdf?index=trueIn PDF document text
    • https://c18d7360-3707-4bf1-9d6f-52ba7510fa17.filesusr.com/ugd/76cb06_ec4a1e7f0c614234bd31f83ef7c45278.pdf?index=trueIn PDF document text
    • http://tosopipates.epizy.com/27300520262.pdfIn PDF document text
    • http://ripikeze.rf.gd/38018828800.pdfIn PDF document text
    • https://e691ad07-92dc-45fa-af10-8929b4045ede.filesusr.com/ugd/87b9a8_751b45a962da4a9ba02a33462b64e821.pdf?index=trueIn 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_off0000ddbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDBD 5400 bytes
SHA-256: 57ae950d686e0e33b6fc705d7199483e3a28f33085a5fe6972cf292ee68e8d20
font_01_sfnt_off0000f018.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF018 11632 bytes
SHA-256: ec9b27b102c92d3e9147e2cf97859c284cbbb29be8c6830e1de0d541999a3c23

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