Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb2e4eda24ae2518…

MALICIOUS

PDF

78.1 KB Created: 2021-03-08 22:24:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d135b771012eba06b1ba5a039d152029 SHA-1: 97e4a847a20d833e80f124c95eaefc7861b64fa3 SHA-256: bb2e4eda24ae2518308403c4367394f285e6eb46df6e113180e858496ad1f7c1
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, indicating a high likelihood of malicious intent. It contains embedded URIs pointing to external websites, suggesting a phishing or credential harvesting attempt. The presence of PDF-specific heuristics further supports its classification as a malicious PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9961

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=words+for+strength
    • http://bosnoslovnoejelaniekupit.xyz/28716508876f40ko.pdf
    • http://tonagruz.ru/sword_of_truth_meme_template4yt6i.pdf
    • https://cdn.sqhk.co/senuziker/jiibjju/tunnel_rush_colors.pdf
    • http://autobaff.xyz/hero_xtreme_160r_price_in_chennaicn67w.pdf
    • http://heretythere.site/tulukaxelibivufolekaxcz9b8.pdf
    • https://static.s123-cdn-static.com/uploads/4405419/normal_5ff50c0551ee5.pdf
    • https://bolukuja.weebly.com/uploads/1/3/0/7/130739437/a7606af.pdf
    • https://cdn-cms.f-static.net/uploads/4475738/normal_602b84b93c177.pdf
    • http://gepanukotex.getenjoyment.net/best_math_workbook_for_5th_grade.pdf
    • https://static.s123-cdn-static.com/uploads/4378599/normal_5fefd4394d449.pdf
    • https://jabibodusap.weebly.com/uploads/1/3/2/6/132681053/a6a5bd4.pdf
    • https://bivapere.weebly.com/uploads/1/3/4/6/134689139/kejotadadegazus-kizekugigezuzol.pdf
    • https://cdn.sqhk.co/ridijafugemi/ijgYPhg/ted_cruz_book_signing_2020.pdf
    • http://lexibanoma.iblogger.org/zaremadewukibigib.pdf
    • https://cdn.sqhk.co/jigekuragige/ighjbCk/runescape_steam_achievements.pdf
    • http://mastera-saydinga.ru/how_to_get_a_senior_drivers_license_ny8w3g6.pdf
    • https://sadozilodefizon.weebly.com/uploads/1/3/4/6/134659806/9028961.pdf
    • http://rasezinetoge.iblogger.org/nurivar.pdf
    • https://mubajodopiwal.weebly.com/uploads/1/3/1/4/131454521/4347799.pdf
    • https://cdn.sqhk.co/zumedizojas/gcNidha/pixel_gun_shooter_3d.pdf
    • https://cdn-cms.f-static.net/uploads/4421937/normal_5fdbd0f4088a1.pdf
    • http://lozuzaragujeb.mypressonline.com/44618356281.pdf
    • https://cdn.sqhk.co/soziwariru/1jjFifk/yandex_navigator_download.pdf
    • http://lupazul.mywebcommunity.org/bolens_lawn_mower_spark_plug_location.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://sizuzupapefapo.epizy.com/propiedades_del_acido_acetico.pdf
    • http://bukofitezude.rf.gd/stick_of_truth_detention_sentence_guide.pdf
    • http://nununad.myartsonline.com/litipazisateruferuv.pdf
    • http://rawopewudoj.rf.gd/administer_medication_at_school_form.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_off0000f745.bin
0d3a6e1477b886813654d417bf2e9b1281935a18e556c1d2a2a274e0ff745d5e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF745 4940 bytes
font_01_sfnt_off0001081e.bin
66e6fec56024135b4c0be621ff03c3bd4139e83510bd6f672c66ac2a34e785ed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1081E 10252 bytes

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