Malicious PDF — malware analysis report

Static analysis result for SHA-256 62b6fb56fe9be893…

MALICIOUS

PDF

44.5 KB Created: 2020-10-07 03:15:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: e4dc668c9a2d779be2e63acbd7fed316 SHA-1: 59ef8c8de8b9271ec9f391e74d07ed5b5db266f5 SHA-256: 62b6fb56fe9be893881002570e25498df506db21d3227484426fbca897904793
154 Risk Score

Malware Insights

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

The PDF contains numerous links to external websites, many of which are part of a link farm designed to manipulate search engine results. One prominent link directs to a known malicious redirector infrastructure. The document body, though partially corrupted, contains text related to search queries and the authoring application, suggesting a lure to drive traffic to malicious sites.

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://cctraff.ru/strik?keyword=ensayo+los+hijos+de+la+malinche+octavio+paz+pdf In PDF document text
    • https://site-1039356.mozfiles.com/files/1039356/jezixiparusuxetese.pdfIn PDF document text
    • https://site-1038758.mozfiles.com/files/1038758/82778385205.pdfIn PDF document text
    • https://site-1037009.mozfiles.com/files/1037009/furuluditafifoba.pdfIn PDF document text
    • https://site-1039903.mozfiles.com/files/1039903/lovotamizonewadonuwo.pdfIn PDF document text
    • http://files.rangerwritings.com/uploads/1/3/1/1/131164383/tapuwolapokubut.pdfIn PDF document text
    • http://xekoke.stmarysacocksgreen.org/uploads/1/3/0/7/130738971/gowazidetupis_xojazuginenes.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://cdn.shopify.com/s/files/1/0438/3241/0272/files/mount_and_blade_warband_best_starting_stats.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5373/4298/files/90018694612.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0472/3009/1429/files/49385277989.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0479/7133/6355/files/football_manager_handheld_2015_mod_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8473/4883/files/64454354470.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8315/9957/files/63548265038.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0480/6046/5316/files/lejop.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_off00006134.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6134 5332 bytes
SHA-256: 7c006474957ca2c5287bfae51599990765ffc753901faecba22c759e712b4036
font_01_sfnt_off00007349.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7349 10832 bytes
SHA-256: 60acb78aaf1483632d8e37c86e1f8f42b04cb76506c5e4d5724ef87898a9e311
font_02_sfnt_off000096b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x96B7 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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