Malicious PDF — malware analysis report

Static analysis result for SHA-256 e269b40123b0f7ab…

MALICIOUS

PDF

75.6 KB Created: 2021-03-05 02:44:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-29
MD5: 01bcaa3c426c3e415656680e99b3763c SHA-1: bc91880b18010de0e0a638a4f2727a4c154a8532 SHA-256: e269b40123b0f7ab5213950626da860a3575ef0bcc61ee8c0be86b3ba8fc9de0
126 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including ML and ClamAV, as malicious and phishing-related. It contains numerous embedded URLs, many pointing to disposable domains, suggesting a link farm or phishing campaign. The document body, though heavily obfuscated, appears to be a lure related to coffee maker reviews, intended to direct users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 5

  • 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 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://maypoin.ru/wb?keyword=mr%20coffee%20coffee%20maker%2012%20cup%20reviews PDF link annotation
    • https://kitopelok.weebly.com/uploads/1/3/4/3/134355781/9a220f5ce.pdfIn PDF document text
    • http://shimano-stradic.ru/what_is_a_inverter_generator_wikipediazdrwj.pdfIn PDF document text
    • https://datojulimiwijo.weebly.com/uploads/1/3/4/7/134708787/vojulexujafowok.pdfIn PDF document text
    • http://doweryklkq.space/fallout_4_looksmenu_preseti4dv6.pdfIn PDF document text
    • http://pisobadepujo.22web.org/51100076485.pdfIn PDF document text
    • https://roguvajodanuk.weebly.com/uploads/1/3/1/3/131379692/jumiguxegafexibaw.pdfIn PDF document text
    • https://tezefidusipenu.weebly.com/uploads/1/3/1/8/131857758/8a3adba.pdfIn PDF document text
    • https://sejevijuwev.weebly.com/uploads/1/3/2/7/132712154/sikudasesudef-demuzifeba-vipuge-zelujumode.pdfIn PDF document text
    • https://mesasijodise.weebly.com/uploads/1/3/5/3/135315214/gigixarakujarozixo.pdfIn PDF document text
    • https://rimozaruminipa.weebly.com/uploads/1/3/5/3/135391391/rizokogax.pdfIn PDF document text
    • https://pivazadigemeza.weebly.com/uploads/1/3/4/6/134642233/8153092.pdfIn PDF document text
    • http://vash-fasad.live/8014535175d6ytc.pdfIn PDF document text
    • http://bezprovodov.guru/84133989214ecnzl.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/sedowedi/civilization_5_zigzagzigal_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/rodiligarexo/7583210293.pdfIn PDF document text
    • http://bomesesif.epizy.com/tiwale.pdfIn PDF document text
    • https://s3.amazonaws.com/wurivuve/64405244221.pdfIn PDF document text
    • https://s3.amazonaws.com/nezanurugega/boss_baby_images.pdfIn PDF document text
    • http://tininababa.rf.gd/hey_jude_piano_sheet_music_notes.pdfIn PDF document text
    • http://tenefotozefuzuw.rf.gd/7693478019.pdfIn PDF document text
    • https://s3.amazonaws.com/jalasilunaz/lagu_ari_lasso_penjaga_hati_lirik.pdfIn PDF document text
    • http://zepenolewiri.epizy.com/cds_paper_2019_answer_key.pdfIn PDF document text
    • http://wusudafatuzawe.epizy.com/dodatamejeguke.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_off0000ea4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA4A 5536 bytes
SHA-256: 3be0b28e8499a14b6aceae7e4fef0debdc7b127869d9010c0f2658003787de2c
font_01_sfnt_off0000fd2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD2F 10440 bytes
SHA-256: 0d4b285bf134aca765c707485c6f16f24835e40d549171563f239818f8b774fc

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