Malicious PDF — malware analysis report

Static analysis result for SHA-256 56a4972f16f24496…

MALICIOUS

PDF

69.4 KB Created: 2020-12-15 08:54:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 698f7b6a82310d93ba6b76e77cc2043f SHA-1: a9a7476a9afad94e54654939eaef5f0ca64665ab SHA-256: 56a4972f16f2449659395888b19801c506a91f2677c26db6df545d5f74ecab7c
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ggtraff.ru'. This URL is likely used to redirect users to a phishing or malware distribution site. The ML classifier also strongly flagged this PDF as malicious, and ClamAV detected it as 'Pdf.Phishing.Trojan'. No scripts were extracted, but the presence of a malicious URL is sufficient evidence for a phishing attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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/aws?utm_term=lands+end+navy+uniform+skirt In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbdf6079b1ed035389ffe32/1606284811980/28894648513.pdfIn PDF document text
    • https://s3.amazonaws.com/wotodedaruzuk/desu_desu_desu.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd0aaf29c5e26690277b25/1606224559562/94335171561.pdfIn PDF document text
    • https://s3.amazonaws.com/mefadedosuw/alternaria_tenuissima.pdfIn PDF document text
    • https://s3.amazonaws.com/bakoloj/35461938226.pdfIn PDF document text
    • https://s3.amazonaws.com/wusone/33527057320.pdfIn PDF document text
    • https://s3.amazonaws.com/wuxupewu/77724390622.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc4f1e7be9b69395124b73d/t/5fd602705488895576a13c8e/1607860849059/aerospace_engineering_degree_sheet_ou.pdfIn PDF document text
    • https://s3.amazonaws.com/satuja/aparajita_singh_ias_marksheet.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0ea36f7cf8c75402afe56/t/5fcc60df5177ea328cb8f53f/1607229664002/noxotenit.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd0b373fdc31513a1196f7/1606224697397/hahn_appliance_outlet_inventory.pdfIn PDF document text
    • https://s3.amazonaws.com/bulozor/tom_lehrer_masochism_tango_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/joterige/30238430032.pdfIn PDF document text
    • https://s3.amazonaws.com/mufukep/video_editor_software_free_softonic.pdfIn PDF document text
    • https://s3.amazonaws.com/meludav/pituxemowugalirilemib.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd237330b50a6bc4cc8951/1606230899160/aqua_tech_5-15_manual.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc293a78ef7301f8b1b7b85/t/5fc6dcce1d106d256bb1c64c/1606868175206/24476644145.pdfIn PDF document text
    • https://s3.amazonaws.com/dinigugaxej/juvanefubimunefemifeg.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_off0000d1c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1C2 5188 bytes
SHA-256: 2a30d9a0e1daa5fa4ca6e5a63aaf2606ef04613f013e119a9cbee0d8859010d4
font_01_sfnt_off0000e369.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE369 10884 bytes
SHA-256: ac0a284af2c4e09e05fa96bf532686b0a3ba811ad779216198d7461ad3d3a2f3

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