Malicious PDF — malware analysis report

Static analysis result for SHA-256 8981aae89bdc4d84…

MALICIOUS

PDF

76.3 KB Created: 2021-03-21 02:56:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: 80b40c6d4b576046a9a93d93588aa9e3 SHA-1: 8cffea188afbe6e88ac4f6d700f39c058bc92fb1 SHA-256: 8981aae89bdc4d840a57dfc4be2fee4c1ecf137d6a48655e6075e45381e6c351
126 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The document body, though heavily obfuscated, contains references to 'Gta vice city 5 download apk pc', suggesting a lure for software downloads. Numerous external URLs are embedded, many hosted on disposable domains, which are characteristic of phishing or malware distribution campaigns.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://jottigo.ru/wix?keyword=gta+vice+city+5+download+apk+pc PDF link annotation
    • http://darawesewagu.22web.org/kilax.pdfIn PDF document text
    • http://wirelosine.22web.org/bhagavad_gita_by_prabhupada.pdfIn PDF document text
    • https://cdn.sqhk.co/diwiporeb/gj0Gtgj/nail_designs_pictures_fall.pdfIn PDF document text
    • http://bikomowaxibujoj.medianewsonline.com/how_to_measure_using_vernier_caliper.pdfIn PDF document text
    • http://waxinexedodupij.22web.org/warobageruge.pdfIn PDF document text
    • http://bewudewumit.sportsontheweb.net/red_blood_cells_function.pdfIn PDF document text
    • http://jakivuxevova.22web.org/53793077086.pdfIn PDF document text
    • http://fezufizibum.mypressonline.com/mathematical_analysis_vol_2.pdfIn PDF document text
    • https://cdn.sqhk.co/sibamoxa/ulmhgGE/merugesobetexoturowil.pdfIn PDF document text
    • http://banuduxirodeb.mypressonline.com/trust_deed_format_in_tamil.pdfIn PDF document text
    • https://cdn.sqhk.co/nogawevorus/ijge7jh/robzone_duoro_xcontrol_profi_recenze.pdfIn PDF document text
    • http://muvepifare.mygamesonline.org/mafaretatag.pdfIn PDF document text
    • https://cdn.sqhk.co/lepezusija/4YRVCge/podenofawukoxetugef.pdfIn PDF document text
    • https://cdn.sqhk.co/salasereki/p5Q5jeP/ctet_exam_2019_paper_1_answer_key.pdfIn PDF document text
    • https://cdn.sqhk.co/xezojutatow/Wgdihgc/roblox_free_robux_hack_script.pdfIn PDF document text
    • https://cdn.sqhk.co/vokalater/jgibdjc/kung_fu_fighting.pdfIn PDF document text
    • http://funuvumolifedaj.iblogger.org/wagekodi.pdfIn PDF document text
    • https://cdn.sqhk.co/nudizodi/QmJyhdy/ice_princess_lily_movie_2019.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sisigetevi.rf.gd/57562758071.pdfIn PDF document text
    • http://vatugiw.epizy.com/el_color_de_mis_palabras_libro_completo.pdfIn PDF document text
    • http://lakobomupixa.epizy.com/17905884861.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 8

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_off0000edbb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDBB 5268 bytes
SHA-256: 49070e1209b30a199d08a7185445c5a0edf4ac004c29602cfa6286d515001385
font_01_sfnt_off0000ffe7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFE7 10544 bytes
SHA-256: 6a46d89e695039283b3edcf6eabea60e686b1bfe53da6aa1fd947d075122b804

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