Malicious PDF — malware analysis report

Static analysis result for SHA-256 62aee0b8a3079066…

MALICIOUS

PDF

72.8 KB Created: 2021-02-14 15:57:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: c45ba83bdb76170db193b9b4a34408f4 SHA-1: 061f75ec5d3e1b9883b77e1ec0a65d8e6a259022 SHA-256: 62aee0b8a30790666a4365ee65a59def6c0a6b1260ea6b85bc5d490382294f26
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://seumenha.ru/wix?keyword=alphabetical+order+3rd+letter+worksheets PDF link annotation
    • https://mozufidapu.weebly.com/uploads/1/3/4/0/134012608/2723816.pdfIn PDF document text
    • https://cdn.sqhk.co/repipedifavi/jivkggf/barbie_princess_adventure_castle.pdfIn PDF document text
    • https://cdn.sqhk.co/fevivesuxofo/5jfifRP/nubijamofedakisapove.pdfIn PDF document text
    • https://vojerured.weebly.com/uploads/1/3/3/9/133999986/jerigemagenixe.pdfIn PDF document text
    • http://fartook.online/884629128328pt04.pdfIn PDF document text
    • https://lepebixetuvenal.weebly.com/uploads/1/3/4/6/134634058/zupemevof.pdfIn PDF document text
    • https://komibaxes.weebly.com/uploads/1/3/1/6/131606619/dexulul_kutefarefufo.pdfIn PDF document text
    • https://folumenudi.weebly.com/uploads/1/3/2/6/132681426/zezusi_bolidojuzunujet_ziwuteguza_vezikoti.pdfIn PDF document text
    • http://topmassage.net/ejercicios_tiempos_verbales_ingles_2_bachillerato_resueltosfdpd6.pdfIn PDF document text
    • https://jakikoxu.weebly.com/uploads/1/3/1/4/131411542/1869107.pdfIn PDF document text
    • https://cdn.sqhk.co/jozojijejip/RQefTcC/inside_out_anger_meme_generator.pdfIn PDF document text
    • http://bioforce-co.site/ck2_survive_the_end_timesb9203.pdfIn PDF document text
    • http://girlita.space/bmw_s1000rr_2016_manual7b5du.pdfIn PDF document text
    • https://nolaxefipox.weebly.com/uploads/1/3/4/7/134740184/tebusa-wapotovadoroz-duvugenam-mebalevizenipu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/dalava/19873067195.pdfIn PDF document text
    • https://s3.amazonaws.com/zonebon/wewojesujaxini.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d2e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2E8 5292 bytes
SHA-256: 58a383d371d0b815df83a13cfa4cde7e09d4c6d47f5c672bed2b701387a1f915
font_01_sfnt_off0000e4f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4F9 10268 bytes
SHA-256: a45843585f713f0d8831a3313e7978629d4307b1dc1fd7e3e2d5ad3b8626e090
font_02_sfnt_off0001081c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1081C 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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