Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ba7e9430bdcb805…

MALICIOUS

PDF

79.2 KB Created: 2021-03-24 00:23:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 28b43bcd75e57110f87da8bf8355ef8e SHA-1: e9bd6fb9bc1d115fee5154775b3e65438d902b7e SHA-256: 0ba7e9430bdcb805d6ceadcf2e31543ef1dc17594d4f1b28bdfc9ed1d3d8cbe4
96 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The embedded URI points to a suspicious domain, likely intended to host a phishing page or download further malware. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest a phishing or credential harvesting attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://resalured.ru/123?utm_term=arizona+coyotes+twitter+reporter
    • http://xupogete.iblogger.org/9388368949.pdf
    • http://kopuvimu.scienceontheweb.net/vavejulenirijujoro.pdf
    • https://cdn-cms.f-static.net/uploads/4478688/normal_600e90cf1a690.pdf
    • http://shop-you.xyz/what_happened_to_marys_husband_on_downton_abbeyu8lbw.pdf
    • http://stav-games.ru/77098229108axk97.pdf
    • http://idealicait.website/joxiwotufifaxibaa7oqf.pdf
    • https://cdn-cms.f-static.net/uploads/4450428/normal_6042fcc1a5c51.pdf
    • https://cdn-cms.f-static.net/uploads/4415742/normal_60433c2344e9b.pdf
    • https://static.s123-cdn-static.com/uploads/4384030/normal_5fec9fc7953d9.pdf
    • https://cdn-cms.f-static.net/uploads/4492250/normal_600a07c3b90d6.pdf
    • https://cdn-cms.f-static.net/uploads/4392210/normal_601b1e35f0ad8.pdf
    • https://static.s123-cdn-static.com/uploads/4449602/normal_5ffc5f835d6c6.pdf
    • http://ionatr.fun/98501851367h6rhj.pdf
    • https://cdn-cms.f-static.net/uploads/4462727/normal_60176b9b06ea3.pdf
    • http://drilltech.info/fasodaasx4z.pdf
    • http://zuraleres.mywebcommunity.org/sodalogedeluketesupinuje.pdf
    • http://pokupka.space/corporate_social_responsibility_ranking_public_listed_companies_in_malaysiayc717.pdf
    • http://daliadiago.com/what_is_difference_between_formal_and_informal_assessmentfrie5.pdf
    • http://chambrehq.xyz/my_hp_pavilion_says_plugged_in_but_not_charging8pdrn.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://voxafizuvukulam.epizy.com/biblical_hebrew_grammar_book.pdf
    • http://dawifugoxumevej.rf.gd/what_is_a_calling_bird.pdf
    • http://tenurusimuxu.epizy.com/audio_visualizer_for_avee_player.pdf
    • http://mibavened.rf.gd/95093120350.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f692.bin
5b60ed92b6d0676129ea064c7a5cff49e7e152c5caac08d2a7fe08ce659b9ac9
pdf-font-stream PDF embedded font (sfnt) at offset 0xF692 5128 bytes
font_01_sfnt_off00010837.bin
0e94c896b22a29308099f6e707b84e3aacb58e74dfd4a168b2f9fd9475964ee7
pdf-font-stream PDF embedded font (sfnt) at offset 0x10837 11476 bytes