Malicious PDF — malware analysis report

Static analysis result for SHA-256 14aef859213f9e36…

MALICIOUS

PDF

79.0 KB Created: 2020-12-25 18:48:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 1d487c3474f42a7558211801b0b7e9f2 SHA-1: e674f8ab3606e72ec2dfbd1d15db60f6e655484d SHA-256: 14aef859213f9e366d070244d48c1ace14d8da5eafbae23ba689b7e26e49031c
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a high risk score. It contains an embedded URI pointing to 'trafffe.ru', which is a strong indicator of phishing or malware distribution. The document body, though partially corrupted, contains text that appears to be a lure. No scripts were extracted, but the presence of external URLs suggests an attempt to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://trafffe.ru/123?utm_term=welcome+to+the+statute+of+secrecy+task+force PDF link annotation
    • https://cdn.sqhk.co/niturunajik/RP0qw48/10112137603.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460966/normal_5fdc91dcf3241.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415739/normal_5fbdd652a85d9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459479/normal_5fb613f0842db.pdfIn PDF document text
    • https://cdn.sqhk.co/tuwagezo/RBBoPv6/editing_text_online_free.pdfIn PDF document text
    • https://cdn.sqhk.co/rosafipex/cieV4WF/spy_camera_gadgets_online_shopping.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/83cc83ec-ddea-4790-a6ad-e866232d0be9/emerson_model_lc320em2f_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/fizaxo/queen_grimhilde_cowl_fanfiction.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/97f367b5-a0ae-4dfb-974c-a01af0112122/7685495768.pdfIn PDF document text
    • https://s3.amazonaws.com/vufupu/approaches_to_management_information_system_development.pdfIn PDF document text
    • https://s3.amazonaws.com/sosupejuxofedo/koxojogupidefexigusuzif.pdfIn PDF document text
    • https://s3.amazonaws.com/lomiwexuva/23178926211.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f8ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8AC 5300 bytes
SHA-256: be9ee2613a11167c554a9095547d9333ea27b31d1f7e94a794b9336dc7306a51
font_01_sfnt_off00010a9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A9B 10980 bytes
SHA-256: 9d6f7c3e6ab4aaad580f1613b99905a1fc6abaa482e302932b14d64b9f97f2c1