Malicious PDF — malware analysis report

Static analysis result for SHA-256 46fceacb18a08d40…

MALICIOUS

PDF

90.8 KB Created: 2021-01-14 19:46:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: f24fa7943cb549e7a062095709c85dcf SHA-1: 0b0d35b92981c67c9aca7b338448779031a3a05a SHA-256: 46fceacb18a08d40053a07788ed592fa93f0fb8403639a32bf3fc52aa2215217
154 Risk Score

Malware Insights

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

The file is identified as malicious by multiple heuristics, including a critical alert for a PDF redirector link to 'ggtraff.ru'. The ML classifier also strongly flagged the PDF. While no scripts were extracted, the presence of embedded URLs and the critical redirector alert indicate the document's primary function is to lead the user to malicious infrastructure, likely for phishing or further malware delivery.

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://ggtraff.ru/123?utm_term=la+noche+boca+arriba+analisis In PDF document text
    • https://cdn.sqhk.co/bosamame/qbieHOT/red_alert_remastered.pdfIn PDF document text
    • https://cdn.sqhk.co/furafurume/XWPogcV/dojifapatuw.pdfIn PDF document text
    • https://site-1178760.mozfiles.com/files/1178760/promodj_top_100.pdfIn PDF document text
    • https://site-1174838.mozfiles.com/files/1174838/eternal_palace_mythic_raid_guide.pdfIn PDF document text
    • https://cdn.sqhk.co/numovasovev/jiGwLa5/gepob.pdfIn PDF document text
    • https://site-1171591.mozfiles.com/files/1171591/sabalarajavetoko.pdfIn PDF document text
    • https://cdn.sqhk.co/datisafapuv/gdsjdmq/most_difficult_games_to_run_on_pc.pdfIn PDF document text
    • https://cdn.sqhk.co/womibakok/fgighic/69543051616.pdfIn PDF document text
    • https://cdn.sqhk.co/zudatona/OsWhbqd/84512963303.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/najipavez/logo_quiz_level_answers_3.pdfIn PDF document text
    • https://s3.amazonaws.com/lunojol/96511501190.pdfIn PDF document text
    • https://s3.amazonaws.com/luramamelolem/46426309303.pdfIn PDF document text
    • https://s3.amazonaws.com/sigobija/54242750729.pdfIn PDF document text
    • https://s3.amazonaws.com/sikuva/24913422868.pdfIn PDF document text
    • https://s3.amazonaws.com/viromibukoleliw/what_does_beach_formal_dress_code_mean.pdfIn PDF document text
    • https://s3.amazonaws.com/lososimap/6272432837.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011788.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11788 4676 bytes
SHA-256: 4b1cbd0bba105aef05b4d5319ffd071c156987b9c14f99ef1ae2bc1661cecd4b
font_01_sfnt_off0001274a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1274A 12140 bytes
SHA-256: b8e36e88b0cfc72e5fbfea333c64318bb008d9eca7707fba0baf51852bc24778
font_02_sfnt_off00014e10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14E10 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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