Malicious PDF — malware analysis report

Static analysis result for SHA-256 bae957f5c896f3be…

MALICIOUS

PDF

74.2 KB Created: 2021-03-06 03:53:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-29
MD5: 73d74ec3fa51bc5833b77fc7b622693c SHA-1: e23b92aa5eff196d3453f9e539238851f5070cf4 SHA-256: bae957f5c896f3be59704620ae9a624afa69f91e9bab12d70a65ddbe9f1af3bd
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a high risk score. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware distribution site. The document body is heavily obfuscated, but the presence of embedded URLs and the overall detection by security tools strongly suggest a malicious intent, possibly related to phishing or credential harvesting.

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://lozipotod.ru/strik?utm_term=zoom+g1on+in+effects+loop PDF link annotation
    • http://verenica.net/classical_sociological_theoriesyc7tj.pdfIn PDF document text
    • https://cdn.sqhk.co/doxanusubomo/heiiAEH/free_viral_videos_of_laughter._org.pdfIn PDF document text
    • http://madewithsunshine.com/terumusexuwefupodavebatu0uv1.pdfIn PDF document text
    • https://cdn.sqhk.co/joxipadij/hgiiDie/real_football_2016_download_apk.pdfIn PDF document text
    • http://yarrebitteh.online/88942687026u764d.pdfIn PDF document text
    • https://cdn.sqhk.co/pogadidotilu/ePnEFOA/japevowebonotugamilibizog.pdfIn PDF document text
    • http://grigolia-studio.ru/heat_and_glo_fireplace_wont_stay_onpxrcv.pdfIn PDF document text
    • https://cdn.sqhk.co/bowazeduz/7ojchfW/grand_hotel_mania_level_80.pdfIn PDF document text
    • http://detonic-ufficiale.website/57273491694l9bsd.pdfIn PDF document text
    • http://axecheat6.xyz/best_mods_for_skyrim_xbox_one_2020rm1a8.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/dudurat/sub_zero_refrigerator_drawers.pdfIn PDF document text
    • https://s3.amazonaws.com/mogedozara/panasonic_genius_microwave_manual_demo_mode.pdfIn PDF document text
    • https://s3.amazonaws.com/rolefosiju/38218619441.pdfIn PDF document text
    • https://s3.amazonaws.com/risisipajole/iv_iron_administration_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/zafibimutadoti/vajodegesisi.pdfIn PDF document text
    • https://s3.amazonaws.com/vipinib/decimal_on_a_number_line_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/palikuvexake/ravekogexuwodezonokorum.pdfIn PDF document text
    • https://s3.amazonaws.com/sazomo/imagine_dragons_birds_lyrics.pdfIn PDF document text
    • https://s3.amazonaws.com/minaxigevani/gixasaxitujejoxememeber.pdfIn PDF document text
    • https://s3.amazonaws.com/juzowilipi/67073814982.pdfIn PDF document text
    • https://s3.amazonaws.com/numegubowalonan/happy_birthday_to_you_viola_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/nonipesikiri/52095269296.pdfIn PDF document text
    • https://s3.amazonaws.com/mijumomub/73438481876.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_off0000e656.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE656 5040 bytes
SHA-256: a8aef687f8cc7f4550edef2a9da40e6cf2979a03c65c1671b31a3f234755ede1
font_01_sfnt_off0000f791.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF791 10548 bytes
SHA-256: 1ff16291ebd9b926cafe0a36f7cc5b5931af211dfab582d95f6dd543ac3fab4a

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