Malicious PDF — malware analysis report

Static analysis result for SHA-256 90f05d9cd48ad180…

MALICIOUS

PDF

79.2 KB Created: 2021-04-09 12:54:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 32a61d49161498c33e82592863566144 SHA-1: 6747f026e62aa2bf073ab2dc0651af407c73693a SHA-256: 90f05d9cd48ad18081850019098487b047777ac9a54b0d7c5c5173aed10b71a5
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The embedded URL, 'https://pelibifir.ru/strik?utm_term=twilight+breaking+dawn+part+2+watch+online+gomovies', suggests a phishing lure related to a popular movie. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are commonly used for distributing malware or conducting phishing campaigns.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://pelibifir.ru/strik?utm_term=twilight+breaking+dawn+part+2+watch+online+gomovies PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4389085/normal_60640b1e01105.pdfIn PDF document text
    • http://cethq.xyz/3778800330asrfk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387243/normal_6046e3e449f8a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413236/normal_5ff26b4abe99f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483337/normal_602d82647a68d.pdfIn PDF document text
    • https://cdn.sqhk.co/fusajovogi/bjeggvj/wutasizifakelazuxar.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410016/normal_603b41d876912.pdfIn PDF document text
    • https://cdn.sqhk.co/moxinivo/gfjcifc/candied_ice_cream_parlour.pdfIn PDF document text
    • https://cdn.sqhk.co/nupegefozub/dgiggji/heroics_meaning_in_english.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384026/normal_604fe380297b5.pdfIn PDF document text
    • http://zoomita.space/how_to_learn_korean_grammar_easilyzyxgd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412160/normal_600ca203de949.pdfIn PDF document text
    • https://cdn.sqhk.co/wavafinudow/hjLahj8/bergamasque_suite_sheet_music.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383805/normal_5fdd60e210ae2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454665/normal_606282cbb6b59.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4428052/normal_6006d5e743a61.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4376098/normal_5fca442a8980b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464874/normal_6042e066d0783.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/jebokizez/fodax.pdfIn PDF document text
    • https://s3.amazonaws.com/dewazewokib/36775040136.pdfIn PDF document text
    • https://s3.amazonaws.com/setikizo/pijilado.pdfIn PDF document text
    • https://s3.amazonaws.com/wovedukevikov/where_to_buy_a_george_foreman_grill.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

Related samples 7

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f566.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF566 5924 bytes
SHA-256: 5b6d5ee8ada9823e006494933cd462e40d1ee760cdc3e4a0b3ce06e18534a86d
font_01_sfnt_off00010977.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10977 11080 bytes
SHA-256: 6d05abce7069c74a24fb7226be5014b078312c8b2da862a50e3f7d66ebe86dd5

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