Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e42dd4ad8547e89…

MALICIOUS

PDF

90.7 KB Created: 2021-04-10 06:46:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: b3f26b74be83e390fde4c4f7bd76e837 SHA-1: 43fa03d10613d950123e33d0ee3243071d576fae SHA-256: 7e42dd4ad8547e89184124c9a3834c1f9e8c3e9563c9b223e88af5c26f507f60
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 0.9996

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://vilenefex.ru/strik?utm_term=why+ieps+are+bad PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4403410/normal_601617bba049b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417813/normal_603aa9ee24271.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/1278c54b-d3ce-4782-bcbc-a84e79eadb73/52898799995.pdfIn PDF document text
    • https://s3.amazonaws.com/xabalaru/is-_7_wot_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/xujitezu/24495960009.pdfIn PDF document text
    • https://s3.amazonaws.com/satedafadusizo/cynthia_morgan_in_love_audio.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bfd8c2fa-f1e1-428d-9418-a28fe03411e1/how_to_get_a_graco_stroller_down.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/de9a7ff9-df3f-4d2c-9060-31ceac82ed7f/labokovobi.pdfIn PDF document text
    • https://s3.amazonaws.com/libowebujakux/vanuvokufixeniferemuzo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3acb97b9-81a1-4f89-8109-c23ba56907f7/thrawn_comic_book_series.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/08e80b84-8ca1-4414-93bf-a41abe6aa1b8/mesimud.pdfIn PDF document text
    • https://s3.amazonaws.com/xipavir/caliper_guide_pins_noise.pdfIn PDF document text
    • https://s3.amazonaws.com/mejawiwomak/update_facebook_messenger.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fea71a14-4f3f-4f9f-90aa-1fb9a44b43a2/zusukorasisojubapij.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e4ae296d-1cb6-4ce8-b98a-1b05f12d1374/what_is_breakfast_sausage_made_out_of.pdfIn PDF document text
    • https://s3.amazonaws.com/furunumaroxun/98065129603.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d8c76cf9-cecb-412a-8e0c-dc28a5897d62/new_testament_books_written_as_letters.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a589cf0b-417b-4c18-8755-685c9c01a3dd/55720966712.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/594aae50-f6d9-4a63-a5cb-18b07541a5bf/photosynthesis_animation_student_worksheet_key.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/252ad41e-8cd3-4385-b1c4-658e85f28ece/how_long_is_the_novel_war_and_peace.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/84bd606e-7708-401a-a833-6642ce885800/is_keto_really_better_than_a_normal_diet.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010ea5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10EA5 5272 bytes
SHA-256: a360d5a81ad10b149f5e0d812285f2145cd7ad3ffcde799f028868908ef2800e
font_01_sfnt_off00012094.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12094 11188 bytes
SHA-256: ce5567723a8ed26bfa8b2e3d62492ea3e1b806e12243eae6448ee43245644e3d
font_02_sfnt_off0001470a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1470A 16204 bytes
SHA-256: a95eff378c135b1ab40d10b3cd1da1bafbc07f86005f57898d079c90d712ddbd

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