Malicious PDF — malware analysis report

Static analysis result for SHA-256 1204e4f76b5edc83…

MALICIOUS

PDF

69.0 KB Created: 2021-01-31 05:51:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: d904a55e74fb8f2967eeb25ab81fa765 SHA-1: 02aa94360a6f6ced1deaeda9ec44fffa9c7d79b6 SHA-256: 1204e4f76b5edc834332702444ab2c3f2ddbcbfe8f3a3ad62ba84a92f44454f0
96 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains an embedded URI pointing to 'trafftec.ru', likely a lure to a malicious website. The document body, though heavily obfuscated, suggests a pretext related to business development management. No scripts were extracted, but the presence of external URLs and the overall detection profile strongly suggest a phishing attempt to redirect users to malicious content.

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://trafftec.ru/wb?keyword=rr%20np%20business%20development%20manager PDF link annotation
    • http://natgood.space/pmp_exam_prep_8th_edition_updateds54ru.pdfIn PDF document text
    • http://onlyforyou.space/check_my_airtel_number_details5dsvh.pdfIn PDF document text
    • http://daating19.site/plague_inc_evolved_androidqed1r.pdfIn PDF document text
    • http://yoptan.space/59672927170nd399.pdfIn PDF document text
    • http://endi-itali.space/ridozamudefojevon7qaet.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/jujadodedaruxix/588745967.pdfIn PDF document text
    • https://s3.amazonaws.com/zodererezuzuxi/18434455323.pdfIn PDF document text
    • https://s3.amazonaws.com/tapelu/97250620699.pdfIn PDF document text
    • https://s3.amazonaws.com/sojaxub/gamexejijew.pdfIn PDF document text
    • https://s3.amazonaws.com/zisulamisozoto/80000988868.pdfIn PDF document text
    • https://s3.amazonaws.com/rolefosiju/lymphoscintigraphy_procedure_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/pibabopuduj/modele_business_plan_food_truck.pdfIn PDF document text
    • https://s3.amazonaws.com/sugowubuf/21584508275.pdfIn PDF document text
    • https://s3.amazonaws.com/domegagowevag/40565310376.pdfIn PDF document text
    • https://s3.amazonaws.com/nutanigonu/pewefedagojovapugufog.pdfIn PDF document text
    • https://s3.amazonaws.com/fotojipifuzitul/everglades_city_fishing_report.pdfIn PDF document text
    • https://s3.amazonaws.com/takateg/cadillac_xt5_2019_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/vabedafozo/zebuwupovevetumibeguj.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_off0000cff8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFF8 5488 bytes
SHA-256: 2003a69431aef50899cd2116218dd67c4c6c9711721652091a17215245686949
font_01_sfnt_off0000e287.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE287 10708 bytes
SHA-256: 02754b5bcf0a878e6c59bbf5cacbf2b374221d3dd45088328bf0510d698dc029

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