Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e11c08f73bfd243…

MALICIOUS

PDF

83.9 KB Created: 2021-03-19 14:25:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-20
MD5: 047d11b4a8adacad7e25034e5109bfdd SHA-1: 5b424920cb7a0bbb2d4ea95ede825069dd677c12 SHA-256: 0e11c08f73bfd2438e7997042005c043d743b2dfe84481b42fafb7befbab5324
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, which is likely a phishing lure. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. The document body, though heavily obfuscated, contains text related to 'quick shortcut apk 6.0.1', reinforcing the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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/wix?keyword=quick+shortcut+apk+6.0.1 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4413976/normal_601b7aab26c3e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487641/normal_602b3d647de8e.pdfIn PDF document text
    • http://lerinumemikiw.22web.org/ben_10_cartoon_network_android_games.pdfIn PDF document text
    • http://kuvuradivikosef.iblogger.org/acronis_true_image_2016_full_iso.pdfIn PDF document text
    • http://kenugizi.getenjoyment.net/what_do_punctuated_equilibrium_mean.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426957/normal_6004a82ddd7c8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446260/normal_5fe966de66a43.pdfIn PDF document text
    • http://timinome.getenjoyment.net/81870255176.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487641/normal_6035bc5ecc08d.pdfIn PDF document text
    • http://dizurexemubegog.mygamesonline.org/access_control_mechanism_in_network_security.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/jazuravazaguz/dog_mange_pictures.pdfIn PDF document text
    • http://mivowejow.rf.gd/xuwikilaju.pdfIn PDF document text
    • https://s3.amazonaws.com/zalisujezajaje/big_data_platform_architect.pdfIn PDF document text
    • https://s3.amazonaws.com/sinadi/interstitial_lung_disease_treatment_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/fapaga/information_about_nilgiri_biosphere_reserve.pdfIn PDF document text
    • http://fijumusuxolegoj.atwebpages.com/64848258422.pdfIn PDF document text
    • http://fegelefuxenitud.rf.gd/wexutikolutalakiwedilu.pdfIn PDF document text
    • http://sugorotebego.epizy.com/defekufo.pdfIn PDF document text
    • http://telosizaba.onlinewebshop.net/wiraxozegokifiwizidezuno.pdfIn PDF document text
    • https://s3.amazonaws.com/mejawiwomak/grim_fandango_guide_year_2.pdfIn PDF document text
    • https://s3.amazonaws.com/goviwigax/incident_reporting_nhs_england.pdfIn PDF document text
    • https://s3.amazonaws.com/gopuze/common_sense_questions_and_answers_in_english.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e8c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8C0 5196 bytes
SHA-256: d9fab11b4293967282845c48acf0883737dd475d0d463b4ee0b504d7254b8538
font_01_sfnt_off0000faf5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAF5 5152 bytes
SHA-256: f4b76f22ce215fc4c96dd9081e7f3ae1599534f63c19d2bc9e9af26bd3fa8489
font_02_sfnt_off00010c8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C8E 11160 bytes
SHA-256: 849a5776510464ad65f57d8e293ee6bf4a292adf01332a9cfe907978f5f37a1e
font_03_sfnt_off000131d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x131D5 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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