Malicious PDF — malware analysis report

Static analysis result for SHA-256 7cea55677352b22f…

MALICIOUS

PDF

77.6 KB Created: 2021-02-12 15:40:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 4d1fa8b9bffb330db000cc11ad414f11 SHA-1: 38dc817a582591df24afa9bcde05d4d35f10862e SHA-256: 7cea55677352b22f56cd070026123cb32c1ff3bb69f59875d9306df305939c46
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a phishing page disguised as a 'Family Feud' audition process. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for credential harvesting or further malware delivery. No scripts were extracted, but the presence of a malicious URL within the document body is a primary indicator of a phishing attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://bologen.ru/wix?keyword=family+feud+audition+process PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4498983/normal_5fef37b91cbc9.pdfIn PDF document text
    • https://cdn.sqhk.co/xawodoze/XgjuT1A/tulutivabo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495257/normal_60158d7f04abb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495387/normal_6016418e9a60f.pdfIn PDF document text
    • https://cdn.sqhk.co/padirazemi/vJoiaaL/bunujinowiwabuzuwe.pdfIn PDF document text
    • https://cdn.sqhk.co/soredepel/ihxIgcS/xesitiginiromedime.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495240/normal_600f9e872fe1a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4377371/normal_6008e4fd460da.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403276/normal_5fc9041aefc9e.pdfIn PDF document text
    • https://cdn.sqhk.co/xumirikebixo/Z67fhOK/space_shooter_new_galaxy_attack_apk_download.pdfIn PDF document text
    • https://cdn.sqhk.co/tedogegez/cgdxjfu/police_audio_song_download.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369646/normal_600392c4aca81.pdfIn PDF document text
    • https://cdn.sqhk.co/ranemagesoga/hhjd8jc/unique_cupcake_recipes_from_scratch.pdfIn PDF document text
    • https://cdn.sqhk.co/gukugifixija/fC6Rqkf/stack_up_my_money_like_tetris.pdfIn PDF document text
    • https://cdn.sqhk.co/ralapogifur/ddggLgh/weed_killer_for_grass.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461250/normal_5fd7803bb5314.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451561/normal_6013e4f5b9091.pdfIn PDF document text
    • https://cdn.sqhk.co/regomesu/0avW2um/19513864885.pdfIn PDF document text
    • https://cdn.sqhk.co/liripudeb/uaibgdW/92706156100.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://ramapenutizawa.epizy.com/buzonumij.pdfIn PDF document text
    • http://faletabud.epizy.com/sevujenomexewe.pdfIn PDF document text
    • http://jitelujojutomu.rf.gd/7480113599.pdfIn PDF document text
    • http://welavosapo.rf.gd/camera_apps_2018_for_android.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_off0000e5cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5CD 5240 bytes
SHA-256: 16991717fa9a01ef3b21f43e5634eb558737c61fa51b3a0dfdcadee81a294f40
font_01_sfnt_off0000f790.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF790 10352 bytes
SHA-256: 0535ed11c806797cfe637425b74f3128c633ff2bf5d805fecb1e3fc4aa1c4314
font_02_sfnt_off00011b11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11B11 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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