Malicious PDF — malware analysis report

Static analysis result for SHA-256 04baaced32a348c5…

MALICIOUS

PDF

80.7 KB Created: 2021-01-11 17:43:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 07e0996f93e514b8a8f1f80f086772d1 SHA-1: 19363ebae994b3dad483b6cf2b48d14c98f72c2b SHA-256: 04baaced32a348c5f079790cc8e8cb3adf6d1b0a9e76ef3ba2d1098db0abb5bf
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://trafftec.ru/aws?utm_term=batuan+andesit+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4380876/normal_5f8bdc19b76bb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367296/normal_5fe0fe535168f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4503214/normal_5fcf2eafd64a8.pdfIn PDF document text
    • https://cdn.sqhk.co/bitizulokiva/1xEsZOD/88580666525.pdfIn PDF document text
    • https://cdn.sqhk.co/sezelijimofi/kjd3APU/iphone_12_mini_review_gsmarena.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452846/normal_5fd2c4464dac3.pdfIn PDF document text
    • https://site-1177224.mozfiles.com/files/1177224/90659775451.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484156/normal_5fc112c040c29.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463010/normal_5fa23d27ee2aa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365642/normal_5f87d36f13a70.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501995/normal_5fdb92f019d06.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409627/normal_5ff589c587bcf.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/zidenigad/54165769615.pdfIn PDF document text
    • https://s3.amazonaws.com/vufuzewasi/biwapomokodemunobomalujem.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e8cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8CB 4956 bytes
SHA-256: 91584871745cd3bbe38e631b07b9f686fb2f391c2dd12c3f3d8236f1dd98af8c
font_01_sfnt_off0000f9c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9C5 11884 bytes
SHA-256: 9430e21a2c0fa35d425036874cb9e5ac2f58f5ad50bdafd21425a9a7fb3aad71
font_02_sfnt_off000121a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x121A1 16028 bytes
SHA-256: 0bae8649ba252bcfab81cb8324cfe1737d73e47191b507e117e6d0858e0066a8