Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c34c4695afa9c9d…

MALICIOUS

PDF

45.6 KB Created: 2020-10-29 22:49:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: e3eb594ad0345bc6208d0365d131f955 SHA-1: 041f9c295906d2c632a6dc947f822c3f875cc3ba SHA-256: 2c34c4695afa9c9d36b3307e16736a6b9661fca70521679f5ba634a395f958e3
94 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The embedded URL 'https://cctraff.ru/pify?keyword=words+that+start+with+h+meaning+good' is the primary indicator of malicious intent. While no scripts were explicitly extracted, the PDF structure and the presence of embedded URLs suggest an attempt to lure the user to a malicious site, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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://cctraff.ru/pify?keyword=words+that+start+with+h+meaning+good In PDF document text
    • https://bebamewikirebu.weebly.com/uploads/1/3/0/8/130874540/a43fe167bd2d.pdfIn PDF document text
    • https://gonerogad.weebly.com/uploads/1/3/1/4/131438616/gepaneluposonu.pdfIn PDF document text
    • https://korebamo.weebly.com/uploads/1/3/0/7/130739662/fedomixugebarupisal.pdfIn PDF document text
    • https://xoxajunun.weebly.com/uploads/1/3/4/3/134351876/8563720.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/4e9a2d24-47ae-4d0d-b95d-efc3d97bb882/www.gigapurbalingga.com__idm.6.25_final.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/0449/2438/files/thomas_edison_high_school_football_schedule.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/2328/9496/files/android_chrome_latest_version_apk_download.pdfIn PDF document text
    • https://s3.amazonaws.com/rebesudanolo/remidalifozugapimaneb.pdfIn PDF document text
    • https://s3.amazonaws.com/zirojopemup/86782595794.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/5021/9692/files/momiwofitudabakuwojif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/1646/5817/files/zuxoxadakiz.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_off000073b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73B3 5312 bytes
SHA-256: 3ba90913198827a82f19ae8da4941086ff5854340d27012ffdca091afbdc8731
font_01_sfnt_off000085af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85AF 10672 bytes
SHA-256: 184d74bc3702a0b6c5b43a85969922282503b30b2ddc05080da4b37f88738941