Malicious PDF — malware analysis report

Static analysis result for SHA-256 29a85cef3b51272d…

MALICIOUS

PDF

96.4 KB Created: 2021-01-06 12:02:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: ca9e64f7d93b7a337cc1e4e7045ecc2b SHA-1: 9138d793c3d5eded4f30d80ad52275beb38d8895 SHA-256: 29a85cef3b51272daa192de42572f7dcf79caa8e8132a079389257550c7d1a88
162 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains a link to known malicious redirector infrastructure, identified by the 'PDF_MALICIOUS_REDIRECTOR_LINK' heuristic. The document body, though heavily obfuscated, contains text suggesting an urgency lure, as indicated by the 'SE_URGENCY_LURE' heuristic. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=example+of+audit+report+pdf In PDF document text
    • https://static.s123-cdn-static.com/uploads/4445107/normal_5fe36ffcc39ad.pdfIn PDF document text
    • https://garasomebopite.weebly.com/uploads/1/3/0/7/130775476/pomuwibiri.pdfIn PDF document text
    • https://cdn.sqhk.co/jutafegobexe/icheWjf/arena_football_video_game_ps2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459774/normal_5fd264b87f31d.pdfIn PDF document text
    • https://patewolenapew.weebly.com/uploads/1/3/4/5/134525441/1347063.pdfIn PDF document text
    • https://sivamodinuna.weebly.com/uploads/1/3/4/7/134762665/4530591.pdfIn PDF document text
    • https://cdn.sqhk.co/vujenibolo/vnH0kih/extreme_landings_game_download.pdfIn PDF document text
    • https://xesaranit.weebly.com/uploads/1/3/2/6/132696194/zixutinofukuvipaxi.pdfIn PDF document text
    • https://wesuzekubiw.weebly.com/uploads/1/3/1/6/131607103/334499.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/bulolimepol/air_games_apk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/06fcb420-0b29-43ca-83bf-7a418c871930/locucin_adverbial_adversativa.pdfIn PDF document text
    • https://s3.amazonaws.com/nuxulikiwab/kitty_cat_pumpkin_template.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cb22572c-2778-45f9-9edf-5c172354dce2/an_operational_definition_is_blank.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/792b7a3f-0c22-4d20-9112-483ecfe1b059/96160168098.pdfIn PDF document text
    • https://s3.amazonaws.com/lokijuronig/vshare_for_apple_ipad.pdfIn PDF document text
    • https://s3.amazonaws.com/memexelu/dallas_zip_code_map.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_off00013962.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13962 5036 bytes
SHA-256: 33663b95a534eedbfe5a9df14a0ab88fbd72558e1b13416b15d81638b7eaf425
font_01_sfnt_off00014a77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14A77 12760 bytes
SHA-256: 8a5ab179b772fdef2aa2f99b11c581420edbd13f19ea35736c66e44a35596c04

Open this report in the interactive analyzer, or submit your own file for analysis.