Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b04331fe51f9ef0…

MALICIOUS

PDF

79.1 KB Created: 2020-12-27 19:35:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 374eb41df0000d9ec755c4c387bd8634 SHA-1: 12d8b74251e4e60a4854b8220ba78d9dc48db68a SHA-256: 1b04331fe51f9ef0951704c6f77708f5973155144087d9b039988d8293302e78
104 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. It uses an urgency-based lure. 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 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://trafftec.ru/aws?utm_term=streaming+music+player+apk PDF link annotation
    • https://cdn.sqhk.co/sakiforivona/WRichii/free_movies_on_xbox_one.pdfIn PDF document text
    • https://cdn.sqhk.co/vizinifum/4jesE4K/value_of_human_life_synonym.pdfIn PDF document text
    • https://cdn.sqhk.co/libarazituw/fUihmCb/mexican_ice_cream_shop_near_me.pdfIn PDF document text
    • https://cdn.sqhk.co/narulaloro/5gcjbhc/ninja_coffee_bar_manual_cleaning.pdfIn PDF document text
    • https://cdn.sqhk.co/momujolo/fgehiye/deadly_medieval_arena.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378827/normal_5fbe0f3bc3784.pdfIn PDF document text
    • https://cdn.sqhk.co/silakozafi/iphjjaz/police_siren_sound_download_free.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449193/normal_5fa59cf65e753.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/a2f3bc58-9ebb-4ae9-af6f-0d77837abe90/integer_word_problems_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/gekixadonuru/tv_guide_gold_coast_qld_tonight.pdfIn PDF document text
    • https://s3.amazonaws.com/fukezavazuj/jrotc_uniform_inspection_checklist.pdfIn PDF document text
    • https://s3.amazonaws.com/sukedil/yugioh_rare_cards_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/lekelepowo/bijanuvi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/46502de2-44aa-462e-8c57-f888bb3f7771/74258873652.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a1328a82-6db0-4473-9926-aea15226a2af/25553556998.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 2

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_off0000f743.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF743 5524 bytes
SHA-256: b871ee531675babb962b106106bc20aec48295ca6cba7578db42efd416dfd964
font_01_sfnt_off00010a01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A01 11012 bytes
SHA-256: f918b9aabbc35f1a1c3d4239f9520c8f46596a6ab05a1b4a87b5b70f74334f4c

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