Malicious PDF — malware analysis report

Static analysis result for SHA-256 72f8115bc6400366…

MALICIOUS

PDF

77.6 KB Created: 2021-02-21 07:45:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: e9f5bae994fa4a006c577132a0c5e6af SHA-1: 9bae18a2dcbc0605f93ca654bc3804239bb3d1cf SHA-256: 72f8115bc64003669e42b4ae199385f5ca7fbdd587bbb973798707fd7548e30d
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URL pointing to 'https://maypoin.ru/123?utm_term=what+is+the+concept+of+community+health+nursing', which is likely used to redirect the user to a phishing or malware distribution site. The document body, though partially corrupted, suggests a lure related to community health nursing to entice users to click the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://maypoin.ru/123?utm_term=what+is+the+concept+of+community+health+nursing PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4459777/normal_60161bc1a10d3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460473/normal_60233a6ca9389.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460708/normal_5fd7767f6be0d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454550/normal_602d4a8c08736.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475874/normal_5fdd89034cc34.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407983/normal_5fdd430e23c62.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383446/normal_5fdb5e166995f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471723/normal_60312f1779e96.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449605/normal_5fe1867fd5253.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/wifiduxezo/14896267379.pdfIn PDF document text
    • https://s3.amazonaws.com/pogolo/74816398031.pdfIn PDF document text
    • https://s3.amazonaws.com/xelimewat/wapking_hd_movie_2014.pdfIn PDF document text
    • https://s3.amazonaws.com/wefadep/positive_ppd_treatment_guidelines_cdc.pdfIn PDF document text
    • https://s3.amazonaws.com/lewuli/juvenasoves.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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d02b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD02B 5320 bytes
SHA-256: 5b6b6bc776b6fbcd94a8a260e7b8fb0502a1a7a9ece8e2c76a0e265714a4670d
font_01_sfnt_off0000e24f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE24F 5428 bytes
SHA-256: 17571f7e9f4b49d39bf140ea0fcefc118dfc156e675c20ea861312bdbd24fe35
font_02_sfnt_off0000f49c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF49C 11128 bytes
SHA-256: 790a52f913f13b71e499e3b4960ef286c41d277a040c2851a9d90a9c5dd72716
font_03_sfnt_off00011a8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11A8A 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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