Malicious PDF — malware analysis report

Static analysis result for SHA-256 8980fd4abfa30ada…

MALICIOUS

PDF

41.6 KB Created: 2020-11-03 02:55:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 9fa2200cd2cee392ad0cc93ce6c5b156 SHA-1: d7f7be02e09f7a6c7c400d8f4cd05f7e9b263a00 SHA-256: 8980fd4abfa30ada9a0d57fc12162d4d44cd6951ed6b342afaac740a275b0f65
94 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

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://ttraff.club/123?keyword=cycling+webquest+water+cycle+answers In PDF document text
    • https://natulawud.weebly.com/uploads/1/3/4/3/134309077/4536698.pdfIn PDF document text
    • https://jazaxalik.weebly.com/uploads/1/3/4/4/134488577/7793016.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/nuxepiduded/semopebejafadaxasejena.pdfIn PDF document text
    • https://s3.amazonaws.com/jiwisigetizoxif/40699283400.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/8848/7603/files/youth_group_names_and_logos.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/15d4971d-ccc0-4deb-a342-374061923b88/wubom.pdfIn PDF document text
    • https://s3.amazonaws.com/fasanag/40032217511.pdfIn PDF document text
    • https://s3.amazonaws.com/xumakomowi/orland_park_theater_troupe_cinderella.pdfIn PDF document text
    • https://s3.amazonaws.com/gotijejaj/vestal_guide_watch.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/1708/3286/files/40957353598.pdfIn PDF document text
    • https://s3.amazonaws.com/dukexajuj/pdf_file_merger_free_download_software.pdfIn PDF document text
    • https://s3.amazonaws.com/zaxuledo/37511055341.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004fa7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4FA7 5332 bytes
SHA-256: 7ad1840aba9b04ffd493f6af6ce0d2e3c24842da918dfc34c3d94c035aeabeba
font_01_sfnt_off000061ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61EC 10024 bytes
SHA-256: 520ac645f29b0c1da407888e13461b4fe24ea3be4b95d27ea2d1513ae17d1a90
font_02_sfnt_off00008477.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8477 16088 bytes
SHA-256: 2727b978b38a50f39ad898ebf475f8e8b5e599e3ec01ea6686db683a475b2ff9