Malicious PDF — malware analysis report

Static analysis result for SHA-256 88ab1beee9a39689…

MALICIOUS

PDF

83.2 KB Created: 2021-02-08 17:11:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 3082485f3a16e407d4cfd9cc672fde21 SHA-1: 4a41d67709761d293fed80e979472b9b3b47a1fa SHA-256: 88ab1beee9a39689722250aa7e0aa6f1ee51ca23a2c357f28c2570bda8f471ec
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains an embedded URI pointing to 'https://crophysi.ru/aws?utm_term=aspire+3d+clipart', which is likely part of the phishing lure. No scripts were extracted, but the presence of embedded URIs and the overall detection suggest a malicious intent to redirect users to a harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://crophysi.ru/aws?utm_term=aspire+3d+clipart PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4416322/normal_6003bd7dcafdc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416927/normal_5ff610d886acd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374376/normal_5fdf5d60031c0.pdfIn PDF document text
    • http://lyudi23.ru/vojifawamn276l.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386081/normal_5fcd457f8c65d.pdfIn PDF document text
    • https://cdn.sqhk.co/doxowite/hcIM5nH/cheetah_running_gif.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374698/normal_5ffa855a64b37.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421767/normal_5feb5cea2c2dd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426572/normal_5fd2cabdd43fe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449012/normal_5fe6ec9534b30.pdfIn PDF document text
    • https://cdn.sqhk.co/xamozafi/NjeOmCN/6899938153.pdfIn PDF document text
    • http://xipevufizokev.iblogger.org/42997442543.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411919/normal_6006bd97525ce.pdfIn PDF document text
    • http://gozatelaji.22web.org/les_chevaliers_du_ciel.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481684/normal_6001ff964f125.pdfIn PDF document text
    • https://cdn.sqhk.co/ruwiketi/duiiha9/skyward_fbisd_iscorp.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jawikiluzejibe.epizy.com/rukarekujepafajod.pdfIn PDF document text
    • http://sikitoda.rf.gd/sivir_s9_guide.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f0b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0B5 5220 bytes
SHA-256: ceeb702c893fc13f0b3f840d9e2b880ed26faa46510cdbdfd4420a862a31afce
font_01_sfnt_off00010282.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10282 11464 bytes
SHA-256: 51b7c325dc2d21fc5ad6e41dbc163c9c67199a5d6e2a584c179339c19ed6b386
font_02_sfnt_off00012975.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12975 16336 bytes
SHA-256: 4c546d31c579de887a25148404dfd84a1d3ee202a243da1a388503521d3f565a

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