Malicious PDF — malware analysis report

Static analysis result for SHA-256 42580fac18afd328…

MALICIOUS

PDF

66.6 KB Created: 2021-03-12 17:35:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 10e9f5a07f34cab6e1e7560237cabc6f SHA-1: 398d0806ace0b75d9f3c23f3f3f7203afbb9e13f SHA-256: 42580fac18afd3283e6fedb3783d59a6a14e9f713e8bee8619334f68efca62c9
94 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, specifically identified as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, which is likely used to deliver a secondary payload or conduct phishing activities. The document body, though heavily obfuscated, suggests a lure related to educational materials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9676

Heuristics 3

  • 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
  • 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://crophysi.ru/award?keyword=multiplication+worksheets+pdf+grade+7
    • http://kulinar2020.site/mopifowikuzapesezhfume.pdf
    • http://itasummer.fun/120359092127o21l.pdf
    • http://kungfumalibu.com/wozivonululabalact6ig.pdf
    • http://fizebiredasibi.mypressonline.com/89169536036.pdf
    • https://sorunamupojiwek.weebly.com/uploads/1/3/1/4/131407183/c71e01f3.pdf
    • http://itdiscount.info/marvel_comics_movies_on_netflix7d775.pdf
    • http://melapotu.22web.org/v_for_vendetta_quotes_v_introduces_himself.pdf
    • https://jigugelelatowo.weebly.com/uploads/1/3/1/4/131437208/20500.pdf
    • http://rejawulomov.mywebcommunity.org/38231727818.pdf
    • http://kirakexig.mypressonline.com/vijadavo.pdf
    • http://myshoes.moscow/el_evangelio_apcrifo_de_mara_magdalenamnbgf.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://medojowibapij.epizy.com/tipadabovudenusuni.pdf
    • http://faruvesisok.rf.gd/27934422535.pdf
    • https://40e214c1-1950-44e8-a195-e2c6eeb23253.filesusr.com/ugd/a517f4_7b4d57a3bc0340248ecde371f96cbf9b.pdf?index=true
    • https://48bf584d-d56c-45cf-b4f3-c1c05dce5274.filesusr.com/ugd/3f4b99_ddfc1d22ace7454da53a3f8fe3464b0a.pdf?index=true
    • https://a0d2adcf-75bd-42a9-a42a-c23e1c6e9e1a.filesusr.com/ugd/85c99c_2a60c665c967464992eabf3cd4e07477.pdf?index=true
    • http://tikigare.rf.gd/9557378496.pdf
    • http://xerozodofuvu.epizy.com/starbucks_almond_milk_frappuccino_calories.pdf
    • http://xiramegakasivi.epizy.com/67086709014.pdf
    • http://kunuzozadaza.epizy.com/egypt_the_winged_sun_disc.pdf
    • http://borogibapomad.epizy.com/76929488409.pdf
    • http://kamaxunavag.epizy.com/mapeh_10_teachers_guide.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e25f.bin
038977b79a3aded5a4b4324cd5c5fa656352cb7223a1ceece277ff0301d5219c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE25F 5656 bytes

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