Malicious PDF — malware analysis report

Static analysis result for SHA-256 b180c220b9623af1…

MALICIOUS

PDF

72.2 KB Created: 2021-03-10 12:34:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b1bce61372592aef6d4367dbce5bc003 SHA-1: 719a6fb0fec846f4428188668ededf49e2e2606c SHA-256: b180c220b9623af105fdab36e45157e1631c340e4608188406473b6af8a49c1c
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, specifically identified as a phishing trojan. It contains an embedded URL pointing to a suspicious domain, likely intended to redirect the user to a phishing site. The PDF structure and embedded content suggest an attempt to deceive the user into clicking the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://druttle.ru/award?keyword=beps+action+2+pdf
    • http://neip-forum.fun/94102100113be917.pdf
    • http://pearhaidhr.fun/xuxizafixqnmcv.pdf
    • http://brumbum3.xyz/bmw_r1200gs_adventure_service_manualiw266.pdf
    • https://static.s123-cdn-static.com/uploads/4383698/normal_5fec6bcc72fd4.pdf
    • http://fishland.store/how_to_manage_your_time_as_a_student_athleteduwxa.pdf
    • http://fastcreditreport.info/architecture_drawing_app_for_pcve3lh.pdf
    • http://mattelipsticks.site/97819405490jm3g2.pdf
    • http://armada.technology/crash_course_in_physics_worksheet_answerso8i4w.pdf
    • http://muzhskoizhurnal.ru/96835383005bxdbo.pdf
    • https://zorusijumabek.weebly.com/uploads/1/3/4/8/134851431/3094168.pdf
    • http://netewe8.xyz/romeo_and_juliet_movie_1996_actorsfsasy.pdf
    • https://feronokemafa.weebly.com/uploads/1/3/1/1/131164109/9004096.pdf
    • http://goproits.com/calculus_of_variations_gelfanduseuz.pdf
    • https://static.s123-cdn-static.com/uploads/4485718/normal_5fed1f6631a65.pdf
    • https://static.s123-cdn-static.com/uploads/4410415/normal_5fd0875829625.pdf
    • https://static.s123-cdn-static.com/uploads/4406208/normal_6006ebaf716d8.pdf
    • https://nozifudofo.weebly.com/uploads/1/3/2/6/132681081/69066337190ccd.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/nijosinizo/lopomozuru.pdf
    • https://s3.amazonaws.com/nilafafakem/40300689431.pdf
    • https://s3.amazonaws.com/povodijirig/jssc_excise_constable_result_2019_answer_key.pdf
    • https://s3.amazonaws.com/kudufigunabi/tinker_board_root_android.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_off0000dfb7.bin
9bc8707ef1896119fb7755aee88f1287cd9d8ab3be1c28cafc52775eb22a75d3
pdf-font-stream PDF embedded font (sfnt) at offset 0xDFB7 5200 bytes
font_01_sfnt_off0000f189.bin
d7bd8719bbfe6ceabe7e638f6fd442707e66e86bb3d594c38547d5a38f0bd0b1
pdf-font-stream PDF embedded font (sfnt) at offset 0xF189 10032 bytes