PDF malware analysis — malicious · 10596e908bf2bca5

MALICIOUS

PDF

79.0 KB Created: 2021-07-20 05:33:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)

MD5: dbe4c4dc5c9d854f967449fd2c219d74 SHA-1: e72011bb14e43b0e583f30ffcbddfeb638ac505d SHA-256: 10596e908bf2bca5f4cbe1e073f974a216f8af5f2805f39a9dfb9a066e4d2ee3

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The file was identified 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 potentially harmful content. The document's structure and metadata, generated by wkhtmltopdf, do not provide specific content, but the heuristic firings point towards a phishing or malware distribution vector.

Machine Learning

Nyx PDF Classifier malicious score 0.9511

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/v-xubMviL4Y/square?utm_term=father+daughter+dance+songs+modern
- https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60ec9d8d1951226b8b8d4f94/1626119566029/how_to_make_someone_chase_you_again.pdf
- https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60e8b6b1566cc9679b7ea53d/1625863857973/nebivedanutumosozemija.pdf
- https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60e904d412fb7d0b27923189/1625883860554/reese_witherspoon_ava_phillippe.pdf
- https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60f1d8a925a50200f460518d/1626462377764/28666956056.pdf
- https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60e7ebb5efb14d112211f019/1625811893869/21029207590.pdf
- https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60f465bdbb7e64222d03444e/1626629565958/mafoziten.pdf
- https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60f597a6956d4479f9f7c839/1626707878457/c_section_pain_after_6_weeks.pdf
- https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60f183f0e7c78223958cb5b4/1626440688089/28924071032.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_off0000d619.bin` `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD619	16792 bytes
`font_01_sfnt_off0000ee2b.bin` `9bf75c1b6bef2e6cb0582bfd4f16e6a2f580fa1f5eb1be2aa6c73c43b7f3f7ea`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEE2B	16036 bytes
`font_02_sfnt_off00011796.bin` `99e9017cc7059e386670ce28951c4957947704ed911281bb312f1b35f3fa43d2`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11796	10756 bytes

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