Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d37ff647f7e953a…

MALICIOUS

PDF

67.8 KB Created: 2021-01-08 18:52:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 9b4bb29c03d82f47adee59a30d01f450 SHA-1: 587ad168ef226c9bf5dfc9c62d0cac00afe3658b SHA-256: 0d37ff647f7e953afa4a2c87c371bd44bbb84027067c935628ca207f867db3be
154 Risk Score

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 0.9998

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
  • 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://gettraff.ru/aws?utm_term=viewmodel+android+architecture In PDF document text
    • https://cdn.sqhk.co/pomijatan/lieY0bH/bomumusebopigipo.pdfIn PDF document text
    • https://cdn.sqhk.co/mofosalamo/JD13ja4/zolaretid.pdfIn PDF document text
    • https://cdn.sqhk.co/bizujutenifo/hfgdKZr/real_drift_car_racing_download_pc.pdfIn PDF document text
    • https://cdn.sqhk.co/kuxaroposa/hdE1Oig/starlink_battle_for_atlas_review_nintendolife.pdfIn PDF document text
    • https://cdn.sqhk.co/mimotulifoti/cKwidgc/16237339355.pdfIn PDF document text
    • https://cdn.sqhk.co/fujonexa/sFhgijp/nojisa.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/47c8c29a-4b1e-4d04-a0f6-7a6023018600/79918542731.pdfIn PDF document text
    • https://s3.amazonaws.com/musoxifuvitalo/wizomo.pdfIn PDF document text
    • https://s3.amazonaws.com/gazitif/dofifamatetupar.pdfIn PDF document text
    • https://s3.amazonaws.com/nijudow/72804028926.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/54b8cd1b-131f-4992-b35e-ee74e7eae5a0/delco_training_center.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2fdfd71e-ae0a-4563-bc58-92235ffe964d/niwawavuwu.pdfIn PDF document text
    • https://s3.amazonaws.com/jajoxulabojaso/tis_880_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/307f7b55-af4c-4ef4-8bf2-4e3c621f134f/6539241036.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_off0000cc18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC18 5060 bytes
SHA-256: f75c6dd0322d453ce5757728390a9ecb2f542b290195122031f239d85404189b
font_01_sfnt_off0000dd30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD30 11000 bytes
SHA-256: 470b2d3c0bfe96038942ce67a95fa8d9a6cde21ac04c1aabb8b7cb55fced95b6