Malicious PDF — malware analysis report

Static analysis result for SHA-256 131acc604d613460…

MALICIOUS

PDF

76.0 KB Created: 2021-03-05 14:22:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 4f1b173ccf4ee5d698ba673934b6bce3 SHA-1: 53a83ad735fec6ed1f064fa6d417117ea056096c SHA-256: 131acc604d6134606a69fae91c7423728c4fb106ece362a7ddc00ac3c6021da6
96 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware distribution site. The document body, though heavily obfuscated, appears to be a lure related to a specific search query, suggesting a targeted phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

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://druttle.ru/wix?keyword=lee+davis+high+school+njrotc PDF link annotation
    • https://cdn.sqhk.co/zokuwagopole/ehdhaah/78154577250.pdfIn PDF document text
    • https://cdn.sqhk.co/levuzivanu/9ijghhj/music_events_barcelona_september_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/wufotubi/fBwjdjg/balega_socks_black_friday_sale.pdfIn PDF document text
    • https://cdn.sqhk.co/befozaxulot/RghvJgh/bovoxabuzomew.pdfIn PDF document text
    • https://cdn.sqhk.co/xutazazo/R2jdgjh/57747869111.pdfIn PDF document text
    • https://cdn.sqhk.co/wagomito/ahfI9id/how_to_play_spider_solitaire_on_phone.pdfIn PDF document text
    • https://cdn.sqhk.co/bisadidizi/swwhajb/emergency_call_luke_wilson_trailer.pdfIn PDF document text
    • https://cdn.sqhk.co/jobiwokojo/QjaCanh/fireboy_watergirl_elements_walkthrough.pdfIn PDF document text
    • https://cdn.sqhk.co/navimoxa/hahbcOF/30171813440.pdfIn PDF document text
    • http://betixisu.22web.org/metformin_hcl_850_para_que_sirve.pdfIn PDF document text
    • https://cdn.sqhk.co/repipedifavi/dijm4EF/79547663377.pdfIn PDF document text
    • https://cdn.sqhk.co/rotefuver/vf4giCf/retro_style_games_on_switch.pdfIn PDF document text
    • https://cdn.sqhk.co/mozoposowi/hegfmdZ/angle_meter_protractors.pdfIn PDF document text
    • https://cdn.sqhk.co/milibotobov/Dij1jdJ/word_jumble_answers_12_12_19.pdfIn PDF document text
    • https://cdn.sqhk.co/xodegajeriw/ShiHhfv/51020083606.pdfIn PDF document text
    • https://cdn.sqhk.co/vuxevabuvix/ficibgg/37543204327.pdfIn PDF document text
    • https://cdn.sqhk.co/zojixemem/cgclheP/wumirad.pdfIn PDF document text
    • https://cdn.sqhk.co/dubagojovo/8u8hhj1/denosuwa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/01a67b90-6d49-46f3-ae24-1a8a853a3cf1/how_to_repair_a_remote_garage_door_opener.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/63786738-f251-4b7e-a85e-e4de2da7f035/gexanizarodoxulezeno.pdfIn PDF document text
    • http://tuzotulerijenej.rf.gd/merchant_of_venice_themes_prezi.pdfIn PDF document text
    • http://jujabezemaluwe.rf.gd/european_guidelines_helicobacter_pylori_treatment.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6dedcde1-5eac-45a7-aa6a-47a519f2026a/36700944742.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9cf3fa72-6136-4a6a-ba39-14ecae275e79/tascam_dr-40x_manuale_italiano.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7a131132-3ad5-45fb-910b-aaeb58c52d06/takiranovo.pdfIn PDF document text
    • http://wimidisa.epizy.com/perimeter_of_regular_shapes_worksheets.pdfIn PDF document text
    • http://julivaradisakit.rf.gd/appetite_italic_font_free.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ee16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE16 5280 bytes
SHA-256: e8057646a6a815d7e6689f12cc34fc46571393a6d77400ffb90a2bb4445411d7
font_01_sfnt_off00010015.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10015 10032 bytes
SHA-256: 80eec5f4682042d7499e11586319ea4fdadff8a398570e499de812d1cb36afaa

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