Malicious PDF — malware analysis report

Static analysis result for SHA-256 9147bf4605065c1f…

MALICIOUS

PDF

73.2 KB Created: 2021-02-11 23:47:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 771b7a1ceea0e3a671bd0e7c547a75ff SHA-1: fb5ec15f40201df88b062dc9bd40665677396be4 SHA-256: 9147bf4605065c1f2e6e3a015f0c852e4ae5b5f1f87313af7caaf2ed2686c8be
244 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://yafferge.ru/wix?keyword=asphalt+8+mod+apk+data+2020 In PDF document text
    • https://japarikadag.weebly.com/uploads/1/3/4/1/134108792/e4edc7.pdfIn PDF document text
    • https://cdn.sqhk.co/fenazijeguk/eEjjTnY/lewilefegagisu.pdfIn PDF document text
    • http://creditpm.com/jawabkom_the_detailed_answer_dailypqsk8.pdfIn PDF document text
    • https://jesasifewom.weebly.com/uploads/1/3/1/4/131453969/3018050.pdfIn PDF document text
    • http://trastenmyqort.online/norifiwovenink1ide.pdfIn PDF document text
    • https://cdn.sqhk.co/wovovoteg/a8eDqV1/pofitiromuribolobejebem.pdfIn PDF document text
    • https://ziperivowupidu.weebly.com/uploads/1/3/1/3/131381589/xederi-biweru-simisafiwix.pdfIn PDF document text
    • https://xajixaze.weebly.com/uploads/1/3/2/3/132302973/jezafukipizebez-zatizo-duwitusiwuwit-litafod.pdfIn PDF document text
    • https://xiluxobafuju.weebly.com/uploads/1/3/5/3/135323992/6474059.pdfIn PDF document text
    • https://cdn.sqhk.co/dodirorip/boLjeyY/zonulemeliliwulusolumu.pdfIn PDF document text
    • http://generalmassage.online/ac3_audio_mx_player_androidchufe.pdfIn PDF document text
    • http://lanejaselisipu.22web.org/charleston_battery_fc_form.pdfIn PDF document text
    • https://sedanafijokam.weebly.com/uploads/1/3/4/8/134888359/c0948d8dab4c3dd.pdfIn PDF document text
    • http://pokemonrivals.online/pijijekopmg7b.pdfIn PDF document text
    • https://fujolununepa.weebly.com/uploads/1/3/4/6/134683680/8266175.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
    • http://notewewagegev.rf.gd/alimentos_transgenicos_y_cancer.pdfIn PDF document text
    • http://lafatakijuton.epizy.com/soxatu.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_off0000d4bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4BB 5140 bytes
SHA-256: a80ab12f56115c04422a1120aac7ebd40ceed6274a827110ebdbe41be0c33fd0
font_01_sfnt_off0000e62b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE62B 10388 bytes
SHA-256: 26cc06adf9a1a3ff3b3e7297ed6a4c0d5e6f5b69c776ebecd533f2b31ecd06bf
font_02_sfnt_off000109a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109A7 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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