Malicious PDF — malware analysis report

Static analysis result for SHA-256 65d9f87772d8f734…

MALICIOUS

PDF

40.3 KB Created: 2020-10-31 20:20:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 2f5df7275d03e31b55261ff91adc2a51 SHA-1: 16f33fbffb32e2ee4910fda37c974c5b883923e6 SHA-256: 65d9f87772d8f7346945518c2d4a753bc1b635d643be6ffdb545c9e9a5404b76
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm and 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 4

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.cc/pify?keyword=never+not+a+lovely+moon+ebay In PDF document text
    • https://cdn-cms.f-static.net/uploads/4378848/normal_5f9491fa57845.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412582/normal_5f9b8f920671e.pdfIn PDF document text
    • https://xanodupujariris.weebly.com/uploads/1/3/0/9/130969381/sadokuxarezug.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/5371308.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/1872/9672/files/float_tube_pro_apk_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6874/2040/files/46378467216.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0015/1707/files/stick_wars_unblocked_flash_games.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a85ecf1f-8e0a-4839-8601-033f6bb2d5b0/vafumukowiwabotugumuge.pdfIn PDF document text
    • https://s3.amazonaws.com/fezenur/nisixikexilosufodawikak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/9358/0704/files/bafuvujiduruw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/6971/6672/files/spotify_apk_free_download_latest_version.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_off00006236.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6236 4924 bytes
SHA-256: a2bf9d4bbf15439f84859a851dffd346ff5e217fc46ebc0c9266a2665b9c8967
font_01_sfnt_off000072f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72F1 9972 bytes
SHA-256: 3f4391b7864a8909b0223a5e3dc5951a5990a60f1714133ffd455a347ff1ee8e

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