Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ce1293b672ba364…

MALICIOUS

PDF

82.8 KB Created: 2021-03-31 21:41:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: a4f1b2cfdd6bb81bb9733e7d5d942d50 SHA-1: 67458463b1d22aed872ee0c565deb4027b50bbdb SHA-256: 7ce1293b672ba36422525de49e609896f56564d4d47a5f91a20b1bc2e03f4bdf
116 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 a callback-phone (TOAD) 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
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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://pelibifir.ru/wix?keyword=plantronics+wo1+manual PDF link annotation
    • https://cdn.sqhk.co/dagosasojo/a8jiflt/1755727642.pdfIn PDF document text
    • https://cdn.sqhk.co/pidodalatip/48jhIje/las_vegas_official_visitors_guide.pdfIn PDF document text
    • https://cdn.sqhk.co/maduzonuxoke/ggfjchi/88541210406.pdfIn PDF document text
    • https://cdn.sqhk.co/rapedipular/eZupBup/love_tester_3_funny_games.pdfIn PDF document text
    • https://cdn.sqhk.co/sixatowitur/gsrjYSV/60780165122.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/kegubinefuda/11167541222.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/65b3848a-16a7-4307-9acb-02a93a129feb/mesagimevigofusolisebu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/58962b8d-7d23-4284-8dfc-a7e2479f5ce2/rarelimenuxomasikawa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/14ce3a7e-1c86-4d53-8495-831e8ffe7e38/51033661668.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/41442c48-8bcf-4a61-8d5f-14ec3469f0ab/how_to_allow_flash_on_chrome_by_default.pdfIn PDF document text
    • https://s3.amazonaws.com/vovuzize/delighting_in_the_trinity_chapter_2_summary.pdfIn PDF document text
    • https://s3.amazonaws.com/wuwabobujasivor/rewebasosozivadipi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8ba5224a-ddf3-430e-9ecf-fbbdbdb25990/troy_bilt_pony_mower_oil_change.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e9985471-a443-4259-a563-ec4c5362228b/what_is_the_lowest_carb_bagel.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aeda647d-edab-44e0-bdae-61ac2c47933b/bryant_trouble_codes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4db6f180-271f-4cbc-b037-8d7d47988b2c/79199476379.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/23aa868e-7a61-4875-a1e1-5fb85b4df78a/dnd_5e_phb_gods.pdfIn PDF document text
    • https://s3.amazonaws.com/rutufokedizon/kemoxibepado.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_off00010350.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10350 5092 bytes
SHA-256: dd455ee43fae2200ab963c28e94a47baa9975555407720d60ba35642f61694ce
font_01_sfnt_off000114a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x114A1 12624 bytes
SHA-256: 6acc2962fb09b2d7d59f8f3bb0b2ccaf50327f77551285dd68877c563b72f655

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