Malicious PDF — malware analysis report

Static analysis result for SHA-256 134943c898a4c33a…

MALICIOUS

PDF

72.7 KB Created: 2021-02-20 02:50:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 7dbd3e3425f6a83db7d138b023ead2bb SHA-1: 1f68ddf9000738b3c29f336f31d08ebd4640620a SHA-256: 134943c898a4c33aed20eb085942871805734af7c981954b2d060888f63170d5
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://jottigo.ru/wix?keyword=idle+apocalypse+hacked+apk PDF link annotation
    • https://xefobizedep.weebly.com/uploads/1/3/1/6/131636625/tunivogeduz.pdfIn PDF document text
    • https://fufukarebalomok.weebly.com/uploads/1/3/4/3/134352968/zevawu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369640/normal_5fde49f8098d0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490534/normal_601faf209d506.pdfIn PDF document text
    • http://fofafik.iblogger.org/22005963243.pdfIn PDF document text
    • http://fuvufurewuf.iblogger.org/berufamuzevupukugaz.pdfIn PDF document text
    • https://remurefovedelag.weebly.com/uploads/1/3/1/8/131860204/wuriwopevob.pdfIn PDF document text
    • https://saxarewuvopa.weebly.com/uploads/1/3/4/8/134855039/watipadokeper.pdfIn PDF document text
    • https://risegexof.weebly.com/uploads/1/3/4/6/134661868/bobezumuso.pdfIn PDF document text
    • https://supavutoni.weebly.com/uploads/1/3/4/7/134713891/87b209e6c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4443362/normal_5fd9ce1731b32.pdfIn PDF document text
    • http://tolufidefal.iblogger.org/59755214342.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4377102/normal_60028a3ba4354.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/jinotugiwomo/89577336271.pdfIn PDF document text
    • http://femejuzi.epizy.com/dhakad_chhora_song_free.pdfIn PDF document text
    • https://s3.amazonaws.com/xonobijikivo/kt_tape_ankle_sprain.pdfIn PDF document text
    • http://bologipegokofi.epizy.com/make_individual_worksheet_read_only.pdfIn PDF document text
    • http://dusozizogotudim.epizy.com/xiaomi_eu_miui_10.pdfIn PDF document text
    • http://lenobarokolubik.epizy.com/is_vivitar_a_good_camera_brand.pdfIn PDF document text
    • http://padubarejibuso.rf.gd/gekusoditowegorad.pdfIn PDF document text
    • http://xediguvodolej.epizy.com/50922451071.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_off0000e103.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE103 5168 bytes
SHA-256: 6eba087aa409ee3b662e9f924394bea02d5b1fffe384542313e223cf1d7ea558
font_01_sfnt_off0000f2a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2A1 10148 bytes
SHA-256: a5a4ad0ae1db577e110e89aaf8c9bb44970e6ab6065911651d0b9a75c4bf01cb

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