Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a82d7000a0cc265…

MALICIOUS

PDF

93.1 KB Created: 2021-03-31 03:02:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 02a709b6b1e6784267d536af53416558 SHA-1: a44abe78e882770f2c952c7a6b756cde72bd086b SHA-256: 9a82d7000a0cc2656871ffeea21f9a457bb5cb1479916e69cc5988c3935c2929
96 Risk Score

Malware Insights

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

The file is a PDF that contains an embedded URI pointing to a suspicious domain, likely intended for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to redirect users to a malicious site, potentially for credential harvesting or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9988

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://xajibur.ru/123?utm_term=bipolar+disorder+types+pdf
    • http://hookup754.fun/juvuwuzivijigugakezeba4reeq.pdf
    • http://usersonlineguardingsettings.site/line_6_spider_iii_presets_liste4fo4.pdf
    • http://luxazeguliwa.iblogger.org/behind_closed_doors_a_true_story_of_abuse_neglect_and_survival_against_the_odds.pdf
    • http://robertferrell.net/83537462880cpmb7.pdf
    • http://xrootunited.com/list_of_useful_french_phrases_omniglotsh3fi.pdf
    • http://mmamba.ru/dogekavedomiramofizjg8k.pdf
    • http://vas-rem.ru/12423417849fkh2h.pdf
    • http://opensalle.xyz/tiradaepi66.pdf
    • http://pc-remont.website/19038083660eksvi.pdf
    • http://copyrights-notices-helps.com/how_to_fix_oven_knobs766ps.pdf
    • http://livethailand.fun/gemulisewunujutojuj5me31.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/gofilafixu/shabdkosh_english_to_punjabi_dictionary_free.pdf
    • https://s3.amazonaws.com/dukexajuj/2013_chevrolet_volt_infotainment_manual.pdf
    • http://bupojawepuda.epizy.com/77746020623.pdf
    • https://s3.amazonaws.com/fomudebipefasu/bimufekovuz.pdf
    • http://porimab.epizy.com/iso_9001_version_2015_ppt_free_download.pdf
    • https://s3.amazonaws.com/lorugipopuxe/situation_analysis_marketing_plan_template.pdf
    • https://s3.amazonaws.com/numegubowalonan/bajaj_allianz_car_insurance_claim_form.pdf
    • https://s3.amazonaws.com/fejatepudopito/20451201198.pdf
    • https://s3.amazonaws.com/vobuturinivi/sumif.pdf
    • http://kukalawewo.epizy.com/kozidetodojoxusogalotox.pdf
    • https://s3.amazonaws.com/sagotomagin/jumping_spider_lifespan_in_captivity.pdf
    • https://s3.amazonaws.com/didowugorokirug/90010770648.pdf
    • https://s3.amazonaws.com/bejikefowu/what_is_emergency_placement_foster_care.pdf
    • https://s3.amazonaws.com/bokexizometun/best_korean_novels_to_read.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011a6f.bin
f232bf88b27726d5c7505c5475de3d1dba95c5ef6bcde45d792c15880a2eecad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11A6F 5188 bytes
font_01_sfnt_off00012c2c.bin
00bac210386957021b4072df6ced7a47e1037c0add9a3f46a589e1474f13d5b8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12C2C 11032 bytes
font_02_sfnt_off000151ea.bin
5b0d2701ab39d2f69c66d7d16c60d8db0b323aa0832947137e757b5401d27330		 pdf-font-stream PDF embedded font (sfnt) at offset 0x151EA 16060 bytes

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