Malicious PDF — malware analysis report

Static analysis result for SHA-256 ace0e3279871e941…

MALICIOUS

PDF

71.1 KB Created: 2021-03-01 00:53:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: ea0c9e156c7d6e9ba052a91d3f1d8fdc SHA-1: 20ac11d77064fd3dba737661cb8c3383aa05e62b SHA-256: ace0e3279871e9416e91a4d666ab6bb05efd6f93253f07ad37b06545b631007a
96 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains an embedded URI pointing to a suspicious domain, likely used to host a phishing page or download further malicious content. Although no scripts were explicitly extracted, the PDF format can embed JavaScript, which is often used for malicious redirection or exploitation.

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://resalured.ru/wix?keyword=harrison+design+1911 PDF link annotation
    • http://xsafak.com/nipipezenuwelapiwnjxi.pdfIn PDF document text
    • https://duzigolanulemo.weebly.com/uploads/1/3/2/6/132680867/6666671.pdfIn PDF document text
    • https://vazigawexike.weebly.com/uploads/1/3/1/6/131606690/75dd822f181b53d.pdfIn PDF document text
    • http://fudidudigas.iblogger.org/18692935575.pdfIn PDF document text
    • http://chestlune.online/d-link_dcs-932l_setup_manualvu9yd.pdfIn PDF document text
    • https://rubosesizip.weebly.com/uploads/1/3/4/7/134744628/661328.pdfIn PDF document text
    • http://useraisins.pro/30813206628jho5f.pdfIn PDF document text
    • http://laura-egorova.ru/rekuvamehxade.pdfIn PDF document text
    • http://vavawosasote.iblogger.org/radepifo.pdfIn PDF document text
    • http://cesaregaspari.com/eating_for_life_food_liste0rmw.pdfIn PDF document text
    • https://kudowelevuk.weebly.com/uploads/1/3/4/5/134585456/linuzivo.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/wurivuve/walter_benjamin_quotes_on_photography.pdfIn PDF document text
    • http://veluvuwipigunuw.rf.gd/lopazeberadejolaxilinalet.pdfIn PDF document text
    • http://jomovexujufadi.epizy.com/figure_of_speech_worksheet_for_grade_6.pdfIn PDF document text
    • http://dixasimoxipux.rf.gd/h2so4_and_alkene.pdfIn PDF document text
    • https://s3.amazonaws.com/lulelepese/64163456696.pdfIn PDF document text
    • https://s3.amazonaws.com/vuliwisuwig/burayu_town_profile.pdfIn PDF document text
    • http://mirimanomuropa.rf.gd/82323751873.pdfIn PDF document text
    • https://s3.amazonaws.com/norozovijalu/myob_invoice_template_free.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_off0000d9ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9AD 5128 bytes
SHA-256: f47222493cb9180f49282f8af5aa70f4d17a9d578670b6ec234d9291b8af6678
font_01_sfnt_off0000eb2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB2D 10672 bytes
SHA-256: 83cc8dbf78e4e382c4c490db704d44c59f48ccb00be04d3912a47d8901962076

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