Malicious PDF — malware analysis report

Static analysis result for SHA-256 134eeb06c0b5096a…

MALICIOUS

PDF

75.2 KB Created: 2021-02-23 00:16:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: fde066dd78f423b12babcdf98ad93d1f SHA-1: 09d8d60e5c217ab2805b79d7c366c86cdf520afe SHA-256: 134eeb06c0b5096ac2dfaf5f3840ede3cd06c591d6e5ff7fa3654e940d17cfa1
96 Risk Score

Malware Insights

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

The PDF file contains embedded URLs and is flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The document body, though heavily obfuscated, suggests a lure related to a 'Poulan leaf blower fuel line diagram' to direct users to a suspicious URL. No scripts were extracted, but the presence of external URIs and the overall detection profile strongly suggest a phishing or malware distribution attempt.

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://leonvi.ru/aws?utm_term=poulan+leaf+blower+fuel+line+diagram PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4405186/normal_6001ec5f40141.pdfIn PDF document text
    • https://cdn.sqhk.co/fagaxirupunu/dEihbjc/tomb_of_the_mask_download_pc.pdfIn PDF document text
    • https://cdn.sqhk.co/kixobaza/VChjfif/puzadezigolajugixatowuxax.pdfIn PDF document text
    • https://cdn.sqhk.co/tokarikadez/zje5Wic/japanese_alphabet_in_english_letters.pdfIn PDF document text
    • https://cdn.sqhk.co/tovizabep/eJgcJ97/bmw_red_warning_light_car_on_ramp.pdfIn PDF document text
    • https://cdn.sqhk.co/rifebonapesi/djgjdjc/balloon_brain_out.pdfIn PDF document text
    • https://cdn.sqhk.co/wadelovelo/d5hhWgf/english_word_puzzle_games_online.pdfIn PDF document text
    • https://cdn.sqhk.co/sulugedako/fpqhegh/38669737636.pdfIn PDF document text
    • https://cdn.sqhk.co/zimajigon/j0jghif/vocabulary_games_online.pdfIn PDF document text
    • http://coins24h.com/rolling_stones_song_lyrics_brown_sugarc5jtc.pdfIn PDF document text
    • https://cdn.sqhk.co/rijakobebux/ghdiggf/tivapevivodefopituto.pdfIn PDF document text
    • https://cdn.sqhk.co/pidenali/PgeKhfL/celebrity_birthday_wishes_for_husband.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390995/normal_603059a6ca1a4.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/fukepez/23159417495.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_off0000e903.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE903 5280 bytes
SHA-256: 9357e182e8d847d5778a5b19054e703b620ae7bd054a676c42f59a3d8d2bc9a9
font_01_sfnt_off0000fafd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAFD 10692 bytes
SHA-256: 08d53907e7a89ff2715d1345dc0e83fd9c4e61b493be6c7c71adf23214932df0