Malicious PDF — malware analysis report

Static analysis result for SHA-256 bdf614910d33ced9…

MALICIOUS

PDF

48.0 KB Created: 2020-10-27 04:55:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 84d59f695b3f0153413ac4264aa071e3 SHA-1: 37ae0dcc1f4eaf7ba27aa265a0fce5dc69cf20da SHA-256: bdf614910d33ced995f5e688d811917bfea9434d7d9e53d74455a6d01a69d9aa
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains a link farm with 30 external PDF links, including a redirector to 'https://ttraff.link/123?keyword=prodigal+son+arts+and+crafts'. This indicates a phishing or malicious redirection attempt. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the presence of numerous links suggests an attempt to lead the user to malicious content.

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.link/123?keyword=prodigal+son+arts+and+crafts In PDF document text
    • https://cdn-cms.f-static.net/uploads/4376126/normal_5f8c10875fdf7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4394060/normal_5f92f9f2638ff.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365635/normal_5f8bb78f0a61f.pdfIn PDF document text
    • https://daletutanedura.weebly.com/uploads/1/3/1/6/131636587/pifuniriwifukob-muxugar-juvokawerer-xalaluxat.pdfIn PDF document text
    • https://firedisivimi.weebly.com/uploads/1/3/0/9/130969818/buvukujixasinaloke.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/1/0434/4279/8757/files/xender_for_android_2.3.5.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/2042/6653/files/township_game_cheats_mac.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2308/1378/files/8855739395.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ded788fb-b3f7-41f1-9993-3be5fd187649/titudibatavamubodon.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/540f08ab-a746-4405-94c8-c1cacd4b3a76/zumojalo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f5ee5c1c-fa21-476f-91a0-153ed12326c5/aoki_hagane_no_arpeggio_ars_nova_dc.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/be535e62-76e2-4ef5-b468-882c6b326eea/1662637307.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fe483a1f-6666-407f-b4ce-d07d9ffcc763/kukodoxitagudifozuwoju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5952/8355/files/pizedibupafo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5150/7112/files/7818240236.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8545/4750/files/la_gran_aventura_de_alejandro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/2072/8478/files/5862000618.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/8468/6525/files/swapix_apk_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0493/7534/6847/files/35828852457.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4432/1945/files/zepirofadaw.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_off00007dd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DD1 5192 bytes
SHA-256: fbeb47c9ab9439cd9e9d9b35278f241089ad70290e53a83adb14b8deda0a0a1f
font_01_sfnt_off00008f87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F87 10336 bytes
SHA-256: 252c36675ddfe9ea88e0f703cbd535b8f3f091c6c317a05449f4118994604528

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