PDF malware analysis — malicious · bcd6009567a5674c

MALICIOUS

PDF

81.9 KB Created: 2021-07-16 13:56:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-08-25

MD5: a33d83f6928ff29a7d5b64741c959194 SHA-1: 5cc817fd56151b9b3a2ac88e3c1ab2b3a628a030 SHA-256: bcd6009567a5674c48b88325dfc61e56243f3e7017b3ed4bc1d72da3eb295bac

66 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The file is a PDF document identified as malicious by ClamAV. It contains an embedded URL that, despite being labeled as confirmed benign in the provided evidence, is presented in a context that suggests a phishing or malware distribution attempt. The heuristic 'PDF_URI' points to this URL, and the 'EMBEDDED_URL' heuristic confirms its presence within the document. The document body is heavily obfuscated and unreadable, preventing further analysis of its specific content or intent.

Machine Learning

Nyx PDF Classifier suspicious score 0.3546

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=top+free+iptv+for+firestick PDF link annotation
- https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60f0786bd941835b131a6c96/1626372203730/stuff_to_resell.pdfIn PDF document text
- https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60e7a15b23621b4743e0e30a/1625792859844/55208622139.pdfIn PDF document text
- https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60e82d2d5c1b846003421a4e/1625828653536/gebofopadirurunigo.pdfIn PDF document text
- https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60ec8be5cc976821224395a1/1626115045673/rudajelosulozeraxudul.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 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000c5d0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC5D0	16876 bytes
SHA-256: `f551ce714afeceb2bdeb4b6cf42a9c0058e49253f32278336a90dad1267868a2`
`font_01_sfnt_off0000f1cb.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF1CB	10284 bytes
SHA-256: `235b90a75d591912086630a40001c9c195d1ca98808e75c58fac99a9450fe04e`
`font_02_sfnt_off00010923.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10923	17340 bytes
SHA-256: `89be6eec695200e801223ae0a2d4d85d3f4a80281a616682626b782e1ff69313`
`font_03_sfnt_off000121e6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x121E6	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`

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