Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab27a063c0b78c08…

MALICIOUS

PDF

73.2 KB Created: 2021-02-27 15:45:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 61f6514a9a5c58b32a77488ff82199b1 SHA-1: a27fe57ae7b2fe4145ec987de6654f94697845a0 SHA-256: ab27a063c0b78c08d82bf16f311fa1943fd8986e96b4d5eb22c83014d0c92bef
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://leonvi.ru/wix?keyword=sift+heads+unblocked+act+1 PDF link annotation
    • https://lokanasa.weebly.com/uploads/1/3/5/2/135299929/deriwe.pdfIn PDF document text
    • https://mitenipup.weebly.com/uploads/1/3/4/3/134363071/8887bb5ba93ebed.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485152/normal_602f44b7d3915.pdfIn PDF document text
    • http://jobware.pro/cryogenic_enginerhuyk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410201/normal_5fe9aba835ed7.pdfIn PDF document text
    • http://italy-small.space/ferrari_logo_carbon_fiberc90yz.pdfIn PDF document text
    • http://worameruvejaka.mywebcommunity.org/ranezidov.pdfIn PDF document text
    • https://lunogowome.weebly.com/uploads/1/3/4/8/134859941/5838485.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481552/normal_6024f70c1e9c5.pdfIn PDF document text
    • http://basiditdcf.space/rotator_cuff_muscles_teach_me_anatomyuo7ui.pdfIn PDF document text
    • https://zerasogamonan.weebly.com/uploads/1/3/0/7/130775055/zowometopuxomej-xawurevifozob-fegoragawufo-lodukudaxipe.pdfIn PDF document text
    • http://viputixezererej.66ghz.com/18204600536.pdfIn PDF document text
    • http://terugate.mypressonline.com/vojevonuloledozunulomazu.pdfIn PDF document text
    • https://gibinefofagal.weebly.com/uploads/1/3/4/6/134668975/92a9f8.pdfIn PDF document text
    • http://sajiwurejedetu.sportsontheweb.net/58373177748.pdfIn PDF document text
    • http://vehicleusains.com/96439397308v7k6z.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/sazariwapa/24359367425.pdfIn PDF document text
    • http://zudupaxub.myartsonline.com/18111867184.pdfIn PDF document text
    • https://s3.amazonaws.com/rijaliwiguvex/lady_sinestra_guide.pdfIn PDF document text
    • http://pivirujifija.epizy.com/pukusi.pdfIn PDF document text
    • http://mapexas.epizy.com/tijabupidij.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_off0000d481.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD481 5252 bytes
SHA-256: 611ea86586907aef7a78a99dbf824ea2812d6e847a1f59f0ee49d4cc76c43353
font_01_sfnt_off0000e64c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE64C 10324 bytes
SHA-256: 5c88476ffd412e04294c95662d20d3cbc0c5438daa083ea33be012ce025d03d5
font_02_sfnt_off000109a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109A6 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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