Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd29185e280d2880…

MALICIOUS

PDF

66.7 KB Created: 2021-03-04 07:29:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: d3dea4069c22b6469f02b710e17857bc SHA-1: 2a1a9c29606016c441935916f861499c61dac848 SHA-256: dd29185e280d2880115677f352807645c23313c547b6d0daecb4647c09336453
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was detected as malicious by ML classifiers and ClamAV, specifically identified as a phishing trojan. It contains an embedded URL pointing to 'golowaki.ru', which is likely part of a phishing campaign. The document body, though heavily obfuscated, appears to be related to a product search, suggesting a lure to trick users into visiting the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://golowaki.ru/strik?utm_term=kx+250+price+in+south+africa PDF link annotation
    • https://cdn.sqhk.co/kejofuvata/Wjchchb/poster_maker_studio_graphic_design_poster_maker_pro.pdfIn PDF document text
    • https://cdn.sqhk.co/tatolodam/egegcia/telegram_desktop_call_microphone_not_working.pdfIn PDF document text
    • https://cdn.sqhk.co/bedogipaxog/e7ifVgi/85947778461.pdfIn PDF document text
    • https://cdn.sqhk.co/nixafusoda/chO2qgc/jevuxozuwebinomux.pdfIn PDF document text
    • https://cdn.sqhk.co/libegavezu/ahi8gjL/usar_movistar_plus_en_el_extranjero.pdfIn PDF document text
    • https://cdn.sqhk.co/rizijuwet/ibpthhv/24064913456.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383704/normal_60064fe386df3.pdfIn PDF document text
    • https://cdn.sqhk.co/gavezexu/jagejeb/sadeg.pdfIn PDF document text
    • https://cdn.sqhk.co/gawagunikuw/mm8ENhc/ice_cream_flavor_vanilla_bean.pdfIn PDF document text
    • https://cdn.sqhk.co/pinofizulag/heAP4bD/mozijipowedovuwexute.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/tobaziw/54775088630.pdfIn PDF document text
    • http://dubekitaxa.epizy.com/69600882569.pdfIn PDF document text
    • http://nawuxek.rf.gd/hello_adele_flute_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/vovabagubajegeb/what_do_criminal_defense_lawyers_do.pdfIn PDF document text
    • https://s3.amazonaws.com/mexesazaxasa/27173151625.pdfIn PDF document text
    • https://s3.amazonaws.com/posufij/51191472729.pdfIn PDF document text
    • https://s3.amazonaws.com/litunux/lafeniwe.pdfIn PDF document text
    • https://s3.amazonaws.com/xisakazelelinim/carpenter_level_app_for_android.pdfIn PDF document text
    • https://s3.amazonaws.com/mejawiwomak/subupebipe.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_off0000c79b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC79B 5504 bytes
SHA-256: 819a4100642913e08dc0184e27c0a79238322927bc909b48cd06dd159589f0d3
font_01_sfnt_off0000da60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA60 10436 bytes
SHA-256: c259207d560c425cd0f3a1829bd9871fe3f77e0a9edf350959e1f817c9e54188

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