PDF malware analysis — malicious · dc6319cfee9c97fe

MALICIOUS

PDF

77.4 KB Created: 2021-07-19 11:40:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)

MD5: 65c0cb1f734d2737cffdda7155b59e9e SHA-1: 95313f0614d6b07e3e99dcfb7fb5ca1d9ac8f610 SHA-256: dc6319cfee9c97fed69e16b27a84132bb5a8193961c5c00e7ec9d6829da6c85a

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains embedded URLs, one of which is linked to a potential phishing or malware distribution lure. No scripts were extracted from this sample, but the presence of embedded URLs suggests an attempt to redirect the user to a malicious site.

Machine Learning

Nyx PDF Classifier malicious score 0.9680

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/qI_NY8u86tA/square?utm_term=mainship+34+for+sale+by+owner
- https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60edeac9a50f6e33a3259e93/1626204873460/mcq_on_trigonometry_for_class_11_download.pdf
- https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60f261316d5e991e36d68248/1626497329231/west_highland_terrier_chihuahua_mix.pdf
- https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60f109486e32095df98234b4/1626409288951/duzilimojapasobemalavewik.pdf
- https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60e815fbba333063f17ae05f/1625822715525/as_in_periodic_table_of_elements.pdf
- https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60f450069ee5897bffac0183/1626624007207/43516725280.pdf
- https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60f15ef4f8313f2e5968a798/1626431220757/who_is_willow_smith_dating.pdf
- https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60ec8c51e0914637f38b6ad2/1626115153735/nivegemeteninajuv.pdf
- https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60ec7dfa8300fd66e195bb3b/1626111482583/stems_and_petals.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.

Filename	Kind	Source	Size
`font_00_sfnt_off0000cd5e.bin` `8aee98d7c1261081c8f6ec58a45c9308a9f02bad9ac0ad32d31673417b02075a`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCD5E	10940 bytes
`font_01_sfnt_off0000e685.bin` `59b7533957182ff4205f6a436983cb3eb0dbefc9e002d56c2156f5102c1d2b90`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE685	16004 bytes
`font_02_sfnt_off00010fde.bin` `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10FDE	16792 bytes

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