Malicious PDF — malware analysis report

Static analysis result for SHA-256 bbacecbb9a37e8ab…

MALICIOUS

PDF

83.7 KB Created: 2021-07-13 23:02:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: a54754f08a9e7f59c6e9540a0071fb9e SHA-1: 4eaa1e1f87888dde757b945e331d416158b8a935 SHA-256: bbacecbb9a37e8ab103072c1dd240393bf995d84810f3e15b7223a9361f72489
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI that points to a suspicious URL, likely intended to redirect the user to a malicious site. While no scripts were explicitly extracted, the PDF structure and heuristic firings suggest an attempt to exploit users through a phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9550

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/razvivatel/yapz/~3/um1bUVUAM38/square?utm_term=forge+and+farrier
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60ecaa5dcd1a1204f6cbf010/1626122845278/62029370778.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60ec96734f2b1c51afa5632d/1626117747874/40002364541.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60e8c0d659653256e7b1f09f/1625866454147/sad_quotes_for_being_alone.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60edc911e7c05a5352547196/1626196241519/negation_of_proposition.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60edc55aebcbe27d0c7b256b/1626195290694/nv_energy_power_outage.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60e8c9b9c5d9771337091a3d/1625868729826/jejigonagavidokalunawo.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60ede797d9d5ad70ebd3659b/1626204055651/resamigidusuzitiwenazezo.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60ec87cd5c244202458bcabc/1626113997362/tebuxumibekasapiluvemipa.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e88d.bin
cd91ce308d25a09d7a1780c17e335dc87af690daccc3798e3ab22115c873ce69		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE88D 16668 bytes
font_01_sfnt_off00011411.bin
784c79c46f66b1b3433c9ad5f270b0875429848db0f8b25c61cebd440118f350		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11411 10196 bytes
font_02_sfnt_off00012ac1.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12AC1 16792 bytes

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