Malicious PDF — malware analysis report

Static analysis result for SHA-256 6fc48cf4c5c65c72…

MALICIOUS

PDF

71.7 KB Created: 2021-01-06 03:08:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 3b2e4001a4e0fe63b2439a66657c24a7 SHA-1: 41ad70120d3023bc0800f2cb0cf5153df7f7fcfa SHA-256: 6fc48cf4c5c65c72363081e8d4002785ffcdf7e449b2c8c89111b018c462fa46
154 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 routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://traffmen.ru/aws?utm_term=articulation+of+form In PDF document text
    • https://ninozaji.weebly.com/uploads/1/3/4/6/134690112/vakagavojowevisule.pdfIn PDF document text
    • https://cdn.sqhk.co/todusukiraxi/YezVy2G/nokia_old_bounce_ball_game_free_download.pdfIn PDF document text
    • https://vebajixumese.weebly.com/uploads/1/3/4/4/134483039/mukuriv_wiripexuluki.pdfIn PDF document text
    • https://cdn.sqhk.co/zekuxemelop/hgfai6g/origami_christmas_tree_instructions.pdfIn PDF document text
    • https://cdn.sqhk.co/zewuxumaro/ehg0gfm/download_day_r_premium_hack.pdfIn PDF document text
    • https://cdn.sqhk.co/fuvepiwedo/ibcjeQa/scream_go_hero_apk_uptodown.pdfIn PDF document text
    • https://gazododisup.weebly.com/uploads/1/3/4/7/134720907/xixixisitevim-mamelanunava-sobetu.pdfIn PDF document text
    • https://divupitibi.weebly.com/uploads/1/3/4/3/134328085/11d7c5c.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/suzujewa/ada_ramp_guidelines_2017.pdfIn PDF document text
    • https://s3.amazonaws.com/niporofez/gilexa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1ebde8e9-afe9-48e4-beff-f8d09b039608/2014_ford_edge_owners_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3538dc61-dfb9-48ee-9830-97d82a6e9895/71807740076.pdfIn PDF document text
    • https://s3.amazonaws.com/tibitexil/zopesigaravitirutiviw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/97c56166-9b69-4451-9377-5ac7b7540e18/iphone_notes_icon_black.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_off0000ddc1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDC1 4840 bytes
SHA-256: ae32f3bf0021b15a1039be41a78ff451b6db65df93bcdca8b20a7f1a933e5bdc
font_01_sfnt_off0000ee25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE25 10592 bytes
SHA-256: 2ddc642df5fa474767d98a466d5e253d9567c03e9e41e1cb953b9a5fffc9e4c9

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