Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d9f3a09d6d847e4…

MALICIOUS

PDF

83.6 KB Created: 2021-02-20 18:15:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: bbfbbd469a5155e717876d1f49b4c1cb SHA-1: 5ec2e87cf8e19e399decaa411f7710b6ad0b6e23 SHA-256: 0d9f3a09d6d847e452bebf1679e7be90ed728ac96c025e20bca80e5529f01fe1
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://seumenha.ru/aws?utm_term=sat+math+topics+college+board PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4382973/normal_5fe2ca2657092.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460231/normal_5fe2a4356afb7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4457330/normal_5fdf70cfc19cb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421613/normal_601aee7f550aa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366335/normal_6012955e55958.pdfIn PDF document text
    • http://verexexomebot.iblogger.org/amathanna_dj_song_jayasrilanka.pdfIn PDF document text
    • https://cdn.sqhk.co/sujutowupolu/gfjjisL/sling_tv_channels_list_2020.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://medelomozukomav.epizy.com/how_s_it_going_answer.pdfIn PDF document text
    • https://s3.amazonaws.com/mogipegi/xuxipote.pdfIn PDF document text
    • https://s3.amazonaws.com/zobuwubedak/builder_design_pattern_android.pdfIn PDF document text
    • https://s3.amazonaws.com/wazotojemov/nokawatexaratog.pdfIn PDF document text
    • https://s3.amazonaws.com/mozedijiz/malayalam_cinema_box_office_collection_report.pdfIn PDF document text
    • http://joriboka.epizy.com/53750681495.pdfIn PDF document text
    • http://sijuzoratimi.epizy.com/mubilatufumedi.pdfIn PDF document text
    • https://s3.amazonaws.com/fonazuzixagizir/rewomo.pdfIn PDF document text
    • https://s3.amazonaws.com/baxegezivumi/dufawexika.pdfIn PDF document text
    • https://s3.amazonaws.com/wetevali/2007_starcraft_boat_owners_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/fajujiju/veradewu.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fd5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD5D 5412 bytes
SHA-256: 6186f89ac39fb8cb029daea1186ced764afec71b58b4fb413a22eba321eaec7e
font_01_sfnt_off00010fb0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10FB0 10392 bytes
SHA-256: 6478995e71988bf8612e49898bfb6b69ca41ef9e4d8d92f6f763186afffcd802
font_02_sfnt_off00013341.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13341 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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