Malicious PDF — malware analysis report

Static analysis result for SHA-256 56a7f594e14d22ed…

MALICIOUS

PDF

78.3 KB Created: 2021-06-10 00:14:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: ca4f8fc55a3b1661f1538ae83e2a77b8 SHA-1: 58118d1f727d93133d0675e6418ff82bc64cc9a3 SHA-256: 56a7f594e14d22eda0222a718025b79f6a4d8f9fe37d8d356e1f8d8f0011bab5
104 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The file is a PDF document flagged by ClamAV as a phishing trojan. It contains an embedded URI pointing to a URL that appears to be a lure for setting up a printer, likely a pretext for a phishing or malware download. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9976

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://archism.ru/wb?keyword=pixma%20mg3120%20wifi%20setup PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4409236/normal_6056ab5812bb5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444866/normal_6015fed756ef5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393762/normal_60570f2a49fe8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4494451/normal_5fe9e35b97940.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4462732/normal_5ffa51e089c5d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413455/normal_5fec593343a6b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417305/normal_60313a6d2bb28.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480589/normal_6028e4b21a357.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370294/normal_5fccf3a9b1327.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370777/normal_5fdf975714161.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381320/normal_604bcadaeb112.pdfIn PDF document text
    • https://static.s123-cdn-static-d.com/uploads/4491155/normal_60afeff88f610.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369773/normal_60481bcabd0b0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4494147/normal_606e299c5dc46.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383681/normal_606ccdf825676.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374364/normal_60614cf531171.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388824/normal_604dc6a5bc051.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414851/normal_5ffa2738374a1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469841/normal_5fdebba1b3ee5.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/e95c7692-46d6-4699-9fd4-2705513961cf/94027821883.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5ca99d47-7d46-4608-8f58-b7bfd6d89c18/dell_inspiron_2350_remove_hard_drive.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6c4ff64e-2da8-462c-a45a-c69bbb4d6891/56940281706.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4d91bcea-84e4-4543-8839-93245facb56b/jireroxixunegufo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e2321125-fc0c-46de-832c-daa43c081c7e/2658526705.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#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_off0000f588.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF588 5744 bytes
SHA-256: bd2b4e97906ec6aca09c9cb5e397438568c4641e76f87843fdcbd22542a6426e
font_01_sfnt_off00010936.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10936 11532 bytes
SHA-256: 37d57e08eeff0159348587a662c941a1def9ceac2552fc170791eaf2c9fe0cee

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