PDF malware analysis — malicious · d0c43f7772b3988b

MALICIOUS

PDF

82.7 KB Created: 2021-07-13 16:13:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)

MD5: 79c9fbc02511f236f0db94bdcce2c6f4 SHA-1: 601b672da773b71056eb8c645f0647fce9074f2e SHA-256: d0c43f7772b3988bf9f2b5a50c626a4b188e559d95d72a82eca92539b5a6d58b

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF file was flagged as malicious by a machine learning classifier and ClamAV. It contains embedded URLs that likely serve as lures to phishing or malware distribution sites. Although no scripts were explicitly extracted, the presence of embedded URLs and the overall detection suggest an attempt to trick the user into navigating to a malicious resource.

Machine Learning

Nyx PDF Classifier malicious score 0.9571

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/AG-UZpNbJGc/square?utm_term=joint+venture+meaning+in+tagalog
- https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60ec885d4a8bde38c34552fc/1626114141594/intracapsular_ligaments_of_the_knee.pdf
- https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60ecd98f0689303983939521/1626134928041/word_technical_manual_template.pdf
- https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60e82b548f757b1ac454a399/1625828180591/deled_4th_semester_notes.pdf
- https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60ec8289fd54eb070825c324/1626112649594/about_giraffe_for_kids.pdf
- https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60ecd2514969f715b3f3d954/1626133073381/26763171567.pdf
- https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60ec93517b14134336ddf560/1626116945494/93732252308.pdf
- https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60ed8f6037bee829a28b452f/1626181472537/29558968984.pdf
- https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60ed8c923489b768f172537a/1626180754699/unit_6_radical_functions_homework_8_inverse_relations_and_functions_answer_key.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_off0000e082.bin` `eef8377dc81eca97bc42a2ef66499a248c8719c1cc4a3c80097202058f87b429`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE082	17832 bytes
`font_01_sfnt_off00010f10.bin` `781df97dccede6281512b5c542f434f84017bc615c715c0b0dea00ccb8f8ce62`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10F10	10440 bytes
`font_02_sfnt_off000126c1.bin` `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x126C1	16792 bytes

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