Malicious PDF — malware analysis report

Static analysis result for SHA-256 340f8a7b5b3e47a4…

MALICIOUS

PDF

91.9 KB Created: 2021-07-19 07:19:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: f3913d8a893ff22030980662cd33c87b SHA-1: d816cfaee902f16cff50acd2484bd14767a61a10 SHA-256: 340f8a7b5b3e47a4f34780d44c5d63be7091210caec3d98e7b2d4aa9512fb65b
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The presence of embedded URLs, despite some being marked as benign, suggests an attempt to redirect the user to malicious content. The PDF structure and embedded artifacts are consistent with a phishing or scam document designed to trick users into downloading further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://feedproxy.google.com/~r/sq/ugae/~3/jEScUJLm1bs/square?utm_term=riprap+and+cold+mountain+poems+pdf PDF link annotation
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60f03ae9fd683a7867cd7a09/1626356457248/wupovaneziziz.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60ec87e90d838b6c850d63d7/1626114025279/35753391769.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60edd0716f118478735a9237/1626198129335/45379616789.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60f342b7ac778402356ad33c/1626555063498/92056486279.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60ede5c38e89d93564d5a230/1626203588019/answers_to_the_impossible_quiz_app.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60ec9405a1b53f2c225f22ef/1626117126414/neburafeluwegex.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60f2f86e4b68c137e696ff8a/1626536046580/wowisulezilegage.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60f218a4db752c5e499eced6/1626478756482/great_gatsby_reading_guide_answers.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60f0af02f74ce745cc25e2a1/1626386178850/sesarurim.pdfIn PDF document text
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60f2f767c4d0d61e673347c4/1626535784557/mumps_in_the_neck.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60f48deee13ee97666153972/1626639854627/29532846957.pdfIn PDF document text
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60e881b2455dce08fe7d3da2/1625850290580/sub_sales_property_meaning.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60f272531ad9bf1c32ab0a74/1626501716021/how_to_throw_grenades_in_fallout_4_xbox_1.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60ee6f2cf72ce0266e12c9f3/1626238765083/wofiwote.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60eff723cd1cf129e162ec50/1626339107103/mofuromuxoti.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60f28c72d68f32259050ded3/1626508402832/23951676718.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010339.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10339 10928 bytes
SHA-256: 213328149a2a09b814a86e64d643d07679cd35a91d87a8fbb5d33b069146fb48
font_01_sfnt_off00011c7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C7B 17484 bytes
SHA-256: 9cf1a42c4cb8e2743d37a8c0e80a014d6bbf410622ae9e75201a1aeeae3f531f
font_02_sfnt_off00014a9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14A9B 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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