Malicious PDF — malware analysis report

Static analysis result for SHA-256 60ca6e20d11eb69c…

MALICIOUS

PDF

86.2 KB Created: 2021-01-26 05:48:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 157c9b48a5f715515fd7f36f61657e38 SHA-1: df9e66954e7317b5b0efa5fd5326b1188e9ce39f SHA-256: 60ca6e20d11eb69c622564454b6bbf6b6b9b8264cf3de300554c3de36cc09499
214 Risk Score

Malware Insights

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

The PDF contains numerous links to external websites, many of which are part of a link farm designed to attract traffic. One critical heuristic indicates that the PDF links to known malicious redirector infrastructure, specifically `https://gettraff.ru/wb?keyword=ipad%20pro%209.%207%20mic%20stand%20mount`. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/wb?keyword=ipad%20pro%209.%207%20mic%20stand%20mount In PDF document text
    • https://static.s123-cdn-static.com/uploads/4530429/normal_5fde09a60062e.pdfIn PDF document text
    • https://tawatoxox.weebly.com/uploads/1/3/4/0/134018263/daxemilono_jokematufuz.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4479921/normal_5ff107c638238.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388420/normal_60080862d2a4d.pdfIn PDF document text
    • https://cdn.sqhk.co/vedasukuki/ajegiQT/helicopter_game_apple.pdfIn PDF document text
    • https://sewimoranekodov.weebly.com/uploads/1/3/0/9/130969375/sesageto_jazumefox_xepogukefekudi_bujurajikafo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385862/normal_5ff3375b6175f.pdfIn PDF document text
    • https://cdn.sqhk.co/vekuperik/jhig6ge/home_design_makeover_app_cheats.pdfIn PDF document text
    • https://dekitinuro.weebly.com/uploads/1/3/4/8/134871397/0b8936ce73.pdfIn PDF document text
    • https://cdn.sqhk.co/mofijovelu/fihIMgj/magic_castle_embroidery.pdfIn PDF document text
    • https://suzoniku.weebly.com/uploads/1/3/4/4/134456843/bafuku.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
    • https://s3.amazonaws.com/fasomusogapovi/assetto_corsa_competizione_setup_guide_deutsch.pdfIn PDF document text
    • https://s3.amazonaws.com/sajatesawodiji/uncle_drew_soundtrack_album_zip.pdfIn PDF document text
    • https://s3.amazonaws.com/xilasisefi/duranosojerej.pdfIn PDF document text
    • https://s3.amazonaws.com/wenobagupexekap/duzitafafesubewififijel.pdfIn PDF document text
    • https://s3.amazonaws.com/takateg/asme_code_for_welding.pdfIn PDF document text
    • https://s3.amazonaws.com/foneniz/phase_1_and_phase_2_biotransformation_reactions.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_off00010658.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10658 5156 bytes
SHA-256: b359f2e27be51e0088e7eb1c00306bf8c8dbcd04b24eee82b98294005d4b1a96
font_01_sfnt_off000117ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x117CA 10988 bytes
SHA-256: f2e246400e9267555237b17e4d3c989ab33e795570882aa53ebb025c7d0ee576
font_02_sfnt_off00013d5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13D5D 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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