Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7b4d9ae0c958fd5…

MALICIOUS

PDF

82.3 KB Created: 2021-04-01 09:34:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 224e3fa50daf1a2791ee4317b7a22297 SHA-1: e505e23124ff396efbfe087f86eef7d56b346f7f SHA-256: d7b4d9ae0c958fd5f2e9eaa9bb57c4b517dc712c078077e59138e4815b05d5e6
96 Risk Score

Malware Insights

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

The file is a PDF document detected as malicious by ClamAV and an ML classifier. It contains an embedded URL pointing to a phishing lure related to a Chili's employment application. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest it is designed to trick users into downloading further malicious content, likely another PDF or executable, from the provided URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://ponafet.ru/award?keyword=chili+s+restaurant+employment+application+pdf PDF link annotation
    • http://fsbsiod.com/rosikelenyc927.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420604/normal_5fcb97a736f35.pdfIn PDF document text
    • http://fasekafalig.scienceontheweb.net/printable_calendar_december_2020.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377674/normal_605a1def47a1d.pdfIn PDF document text
    • http://gilumesu.mypressonline.com/what_is_critical_theory_in_english_literature.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406191/normal_605b357318d2d.pdfIn PDF document text
    • http://excschool.ru/assistive_touch_iphone_7_downloades68l.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387412/normal_603197922cc0f.pdfIn PDF document text
    • https://cdn.sqhk.co/zolilobup/ithiHgg/best_video_maker_with_music_app_for_iphone.pdfIn PDF document text
    • https://cdn.sqhk.co/tagodepa/gjcvijR/11778554505.pdfIn PDF document text
    • http://ita-fitness.fun/wofaf4gfrt.pdfIn PDF document text
    • http://zuwazekanusur.mypressonline.com/24658359302.pdfIn PDF document text
    • https://cdn.sqhk.co/vasegodesazu/fjjrjcf/88191975484.pdfIn PDF document text
    • https://cdn.sqhk.co/xupodafib/WgjHbgi/niwurotudesakurirevulibop.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/jusagi/english_file_intermediate_plus_answer_key.pdfIn PDF document text
    • http://tibamupebunod.atwebpages.com/fubewijafajotulitugu.pdfIn PDF document text
    • http://xanedemu.onlinewebshop.net/60961037216.pdfIn PDF document text
    • https://s3.amazonaws.com/wewuxuviwar/nevolasobobedofa.pdfIn PDF document text
    • http://piwolimosopobu.myartsonline.com/marathi_aarti_sangrah_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/rewepalazamiso/vases.pdfIn PDF document text
    • https://s3.amazonaws.com/wukevirenesu/what_is_kafkas_message_in_the_metamorphosis.pdfIn PDF document text
    • https://s3.amazonaws.com/vabemavuputenif/backwards_curriculum_design_template.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_off0000f1fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1FC 5404 bytes
SHA-256: 19bc85a816c4c473c703fe08ea178c7a2823660a3725665c15e90813b8d9e444
font_01_sfnt_off00010432.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10432 11464 bytes
SHA-256: c00215299f872e352daafb32c4651d41e1c166837d44e085dc242910222e03cc
font_02_sfnt_off00012b6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12B6D 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

Open this report in the interactive analyzer, or submit your own file for analysis.