Malicious PDF — malware analysis report

Static analysis result for SHA-256 058977806c4ee31c…

MALICIOUS

PDF

113.5 KB Created: 2021-01-09 05:53:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: bc3f0478579779e2591abf6373d169f8 SHA-1: f0972b36e5df7dd4914e66a424d680070b55d4f1 SHA-256: 058977806c4ee31ca9e8098c4fbf39d19c3ff5a4f9fbc0357421b79955314851
136 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, and exhibits characteristics of a payment redirection lure. It contains an embedded URI pointing to 'traffset.ru', which is highly suspicious and likely serves as a gateway to a phishing or malware distribution site. Although no scripts were explicitly extracted, the PDF structure and the presence of external URIs suggest an attempt to exploit the user through deceptive content, aligning with a phishing attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • 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://traffset.ru/aws?utm_term=entertainment+one+ltd.+annual+report PDF link annotation
    • https://gujijuxe.weebly.com/uploads/1/3/5/3/135326775/3a7fdd3dd2c93e7.pdfIn PDF document text
    • https://cdn.sqhk.co/bunewonu/0S1peZf/pefuju.pdfIn PDF document text
    • https://cdn.sqhk.co/kuzosexiwugu/gLHiahb/dino_run_game_no_internet.pdfIn PDF document text
    • https://fesinukovib.weebly.com/uploads/1/3/4/7/134715349/zowirawop_muzogaful_sakopemaj_dikikowa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403805/normal_5f93ee1158544.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453129/normal_5fa4c308587f6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4377663/normal_5fe42bbd0b36b.pdfIn PDF document text
    • https://cdn.sqhk.co/gevajoke/ihaJghb/zikizasugutawatamorurapiz.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/24cf60ed-6af8-4826-b4ff-19989699d341/event_marketing_plan_template_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cde4312e-a012-4113-86f9-9e3a1a90cb6a/antman_x_wasp_cast.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a445e694-63f9-4fda-b868-ace59c1a39d0/2992646306.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off000190ac.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x190AC 23492 bytes
SHA-256: 6a01c2c4e1e5a224b88dde3c823248061bf78460c91b13ad7c94484b8e8e7064
font_00_sfnt_off00015a42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15A42 4916 bytes
SHA-256: 746ccb1ffa9f1b793aa703b81ed4d8308a78500661ee1e25ea70365a5b92da9e
font_01_sfnt_off00016ae3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16AE3 10988 bytes
SHA-256: 53004a24a986e45f2f245869fce5ff369e0305edca6e47a75583d6fa32b7c704

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