Malicious PDF — malware analysis report

Static analysis result for SHA-256 cad16062b2c1d79f…

MALICIOUS

PDF

77.1 KB Created: 2021-02-13 11:36:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: aae7904db9911f310cef0de1b217b55c SHA-1: 53236854075bd13948b8d6b2bda50686a46680ff SHA-256: cad16062b2c1d79f2ad70d11877c65a1312e685e9787c2a7937393fa03759d5d
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://jacksth.ru/aws?utm_term=collins+dictionary+synonyms PDF link annotation
    • https://cdn.sqhk.co/winelolibug/kk0jUha/offroad_tractor_farmer_simulator_2018_cargo_drive.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470029/normal_6013706c2e389.pdfIn PDF document text
    • https://cdn.sqhk.co/waxipefimafa/cPmgeia/46843654301.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448746/normal_5fcae76560d9a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474978/normal_5fd3d6fe9d935.pdfIn PDF document text
    • http://idealicaitaly-ufficiale.site/mobikawelulupnj9c6.pdfIn PDF document text
    • http://edevletorg.com/cryptography_and_network_security_notesorx1k.pdfIn PDF document text
    • http://zathkatow.xyz/xerox_versant_180_press_service_manualz66wz.pdfIn PDF document text
    • http://ersoil.fun/tasipajudokotowaliferwjxoz.pdfIn PDF document text
    • http://libralab.digital/53679371562w6fvj.pdfIn PDF document text
    • https://cdn.sqhk.co/nezusoxe/Yjv0nha/the_weather_channel_radar_houston.pdfIn PDF document text
    • https://cdn.sqhk.co/wiwuwigo/egche8Q/64243360375.pdfIn PDF document text
    • http://reduslimitaly.website/81723905650i39tb.pdfIn PDF document text
    • http://nuveclovet.xyz/non_biodegradable_waste_managementhhmu4.pdfIn PDF document text
    • http://tugrull.com/star_wars_characters_names_starting_with_uuj16w.pdfIn PDF document text
    • http://ig-copyrightnotice.com/malukosokosisazivw5fs.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/nijosinizo/teaching_textbook_algebra_1_answer_key.pdfIn PDF document text
    • https://s3.amazonaws.com/jukoxisojow/brake_caliper_guide_pin_boot_replacement.pdfIn PDF document text
    • https://s3.amazonaws.com/risisipajole/date_sheet_of_cricket_world_cup_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/zufaxepixiguxax/bavipalunezivuz.pdfIn PDF document text
    • https://s3.amazonaws.com/pusixa/68786083662.pdfIn PDF document text
    • https://s3.amazonaws.com/lopadivupudexa/atj_8_86.pdfIn PDF document text
    • https://s3.amazonaws.com/jazamerijekufol/conformations_of_alkanes_and_cycloalkanes_ppt.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e45d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE45D 4880 bytes
SHA-256: 0729c2aa8140f29bb1580ad937da000f25dd13f968879f1172e82fc24d5a7527
font_01_sfnt_off0000f4d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4D4 10660 bytes
SHA-256: 78455f542ddcccdaf23dca462c548664627843fcc316dfc04645f2e029cfbbc6
font_02_sfnt_off00011925.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11925 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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