Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c703983a3081a30…

MALICIOUS

PDF

90.6 KB Created: 2021-02-16 08:03:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 9166b62ec516bf887b4e6f72ed57eb3a SHA-1: 9f428a93df82bf1a8915859d8c75ccea63fcd7e0 SHA-256: 2c703983a3081a301ff3c2efa56a909a5379a34cabe0b57fbea9d562186995dd
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded external URI pointing to a suspicious domain, likely intended to redirect the user to a malicious site. The document body, though heavily obfuscated, suggests a lure related to 'Jesus storybook bible curriculum free', indicating a phishing or social engineering attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://jottigo.ru/123?utm_term=jesus+storybook+bible+curriculum+free PDF link annotation
    • http://wunutomerar.iblogger.org/vepegigiremesegunip.pdfIn PDF document text
    • https://cdn.sqhk.co/mibazudifij/Vqihfjj/67932412563.pdfIn PDF document text
    • https://cdn.sqhk.co/sadirorig/ISidjvT/fox_news_live_app.pdfIn PDF document text
    • https://cdn.sqhk.co/tatidukigag/a0ihVIe/9352275150.pdfIn PDF document text
    • https://cdn.sqhk.co/jolodovi/herkrFj/find_your_friends_on_spotify.pdfIn PDF document text
    • https://cdn.sqhk.co/vopofuxo/wDxXjaa/megezen.pdfIn PDF document text
    • https://cdn.sqhk.co/xasujuteguk/ebghXif/ninja_foodi_tendercrisp_pressure_cooker_air_fryer.pdfIn PDF document text
    • https://cdn.sqhk.co/zifeduwa/cSighfV/word_worm_games_online.pdfIn PDF document text
    • https://cdn.sqhk.co/sarunasol/hhelgd6/superhero_jumper_knitting_pattern.pdfIn PDF document text
    • https://cdn.sqhk.co/damukowabij/fiiImHI/pirate_hat_crafts_for_preschoolers.pdfIn PDF document text
    • http://nepojar.22web.org/foxowositikofulupugot.pdfIn PDF document text
    • https://cdn.sqhk.co/dutimapo/LgiieoM/morek.pdfIn PDF document text
    • https://cdn.sqhk.co/sufokorume/iehcRGb/flow_sports_1_tv_guide.pdfIn PDF document text
    • https://cdn.sqhk.co/fabunavaxa/d3od5hd/lubaromerugose.pdfIn PDF document text
    • https://cdn.sqhk.co/dofexoxev/idY9RqV/zimojate.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tijoduv.epizy.com/jofusaroditoramov.pdfIn PDF document text
    • http://titetirif.epizy.com/86258955637.pdfIn PDF document text
    • https://s3.amazonaws.com/jodabiladezot/32936838325.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_off00012490.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12490 5112 bytes
SHA-256: d871f0703efe05f18104cbb193f3b0a2b3047b163381cae7824e978311d0e8f2
font_01_sfnt_off000135f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x135F4 11460 bytes
SHA-256: cd62f41282dc3095b495e39184cb04a922c1c91a00a74078a9eb93fac4accd0a

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