Malicious PDF — malware analysis report

Static analysis result for SHA-256 448e9642efcb1a62…

MALICIOUS

PDF

80.1 KB Created: 2021-03-04 02:08:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 4d054034c0677b4159960e662964375a SHA-1: 3d0ee5a805b264ab59769c1957a15fa3a25d1f52 SHA-256: 448e9642efcb1a628da524c5ec340f0d6bc3ebeb38d52c10b42f08277f01cc59
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. It contains multiple embedded URLs, with one specifically pointing to 'gimoguvi.ru', suggesting a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains text related to 'midi controller for ableton', likely a lure to disguise the malicious nature of the PDF.

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://gimoguvi.ru/123?utm_term=what%2527s+the+best+midi+controller+for+ableton PDF link annotation
    • https://cdn.sqhk.co/remigalakefo/bpgeAEE/steam_games_for_kids.pdfIn PDF document text
    • http://sluzhba1.net/adrenergic_system_and_drugsk4ygc.pdfIn PDF document text
    • http://dfahsdfgjsfg.online/woxafefokominatawur5bgv.pdfIn PDF document text
    • http://serikanipesemo.iblogger.org/tennessee_wild_boar_hunting_guides.pdfIn PDF document text
    • http://taptopbot.com/printable_self_certification_form_nhsjtmmr.pdfIn PDF document text
    • http://shoes-storie.club/do_you_capitalize_mother_earthyouww.pdfIn PDF document text
    • https://cdn.sqhk.co/surudije/ggusjjH/92542530966.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481402/normal_602f798ec5237.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365602/normal_602c3ff19f97d.pdfIn PDF document text
    • http://nejewif.iblogger.org/what_is_pascals_theorem.pdfIn PDF document text
    • https://cdn.sqhk.co/niripakexad/XnSKihI/nokipetaw.pdfIn PDF document text
    • http://pearhaidhr.fun/lasivubebopegedevitenirafpr5rn.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374024/normal_603112cf6817c.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/vesubodufisi/53954523279.pdfIn PDF document text
    • https://s3.amazonaws.com/sugowubuf/werit.pdfIn PDF document text
    • https://s3.amazonaws.com/wuvepilamamuse/dragon_nest_sea_leveling_guide_60-_70.pdfIn PDF document text
    • https://s3.amazonaws.com/falevi/fosupakawiw.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ef3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF3A 5236 bytes
SHA-256: f9c12d0d16944021aac78207c52d6707c81bda4db2f1c3cb7551f6ecb832ac51
font_01_sfnt_off000100df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x100DF 10632 bytes
SHA-256: 1608061999cea28215fb7723a11ad6662c357aaa87ec26ceec0ba27f21d9c7d3
font_02_sfnt_off00012526.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12526 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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