Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7adc6a1f5f28e77…

MALICIOUS

PDF

87.3 KB Created: 2021-03-19 12:09:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 72ee0dd200739ffadfc41c463a698cb2 SHA-1: f162be25137d8ee64d8fb910194a57e3a826ab08 SHA-256: e7adc6a1f5f28e7748186bae785a4e56cd0689cee962e209907bfaf8db773a17
96 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The embedded URL, https://midufefew.ru/wix?keyword=oedipus+the+king+vocabulary+worksheet, suggests a phishing or social engineering attack, likely attempting to trick the user into downloading further malware or providing sensitive information. The document body, though heavily obfuscated, contains references to 'oedipus the king vocabulary worksheet', reinforcing the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://midufefew.ru/wix?keyword=oedipus+the+king+vocabulary+worksheet
    • https://cdn.sqhk.co/gidenateg/8OgfhdP/37375806724.pdf
    • https://cdn.sqhk.co/mosugukasiba/jeehfic/convert_regular_load_to_load_wallet_globe.pdf
    • https://dudobafileziv.weebly.com/uploads/1/3/5/3/135331993/vizutol.pdf
    • http://gizovivomiz.getenjoyment.net/commerce_dictionary_english_to_marathi.pdf
    • https://juxufosuzuvol.weebly.com/uploads/1/3/1/4/131437906/9851801.pdf
    • https://xotozefubineru.weebly.com/uploads/1/3/4/5/134576546/319bbeff57d12d.pdf
    • https://cdn.sqhk.co/xozifejor/bWyNihG/16728463738.pdf
    • http://valuburikodajad.medianewsonline.com/possessive_pronouns_worksheet_6th_grade.pdf
    • http://pawomodom.medianewsonline.com/abu_garcia_black_max_5_parts.pdf
    • https://nitavadokeja.weebly.com/uploads/1/3/1/1/131163909/fibujewakupudew.pdf
    • https://cdn.sqhk.co/segenapiza/iezhg2e/royal_family_tree_through_history.pdf
    • http://zoguponuwuxoli.medianewsonline.com/63000896721.pdf
    • http://kirudikegopoded.sportsontheweb.net/jbl_boombox_vs_xtreme_2_specs.pdf
    • https://dapasubasawesol.weebly.com/uploads/1/3/4/3/134383907/1218910.pdf
    • http://tezijexipilimo.getenjoyment.net/xewiroduwewog.pdf
    • https://wimukesogizat.weebly.com/uploads/1/3/4/6/134639197/xigaxanigokil.pdf
    • https://dekodisiga.weebly.com/uploads/1/3/6/0/136051758/wasetofavon.pdf
    • https://cdn.sqhk.co/gulifunanale/he0rSgd/pentagon_sides_equal.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://soranodabiwegi.myartsonline.com/applied_multivariate_statistical_analysis_6th_edition_free_download.pdf
    • https://s3.amazonaws.com/fevobelijogal/57019578391.pdf
    • https://s3.amazonaws.com/xeroguru/sajaraditibafodidonekafom.pdf
    • https://s3.amazonaws.com/rodakarugupoko/hodder_plus_workbook_answers.pdf
    • https://s3.amazonaws.com/jeduzizonox/48445334281.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001139a.bin
6bce9a3dd2c4484fb32e75ca47585e85af504ca112b21e1e5c91f607e8d65b90		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1139A 5820 bytes
font_01_sfnt_off00012772.bin
cc3fe1d91e8a69fc1697609586fa0460316e69c90a4b56adeff53f24e8891f53		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12772 11308 bytes

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