Malicious PDF — malware analysis report

Static analysis result for SHA-256 068cee12ab06f43f…

MALICIOUS

PDF

48.5 KB Created: 2020-09-29 19:43:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ce25d26b66955c5c5f3687cbe526e312 SHA-1: 481743b9ef9cf4c408b45358efec366d05526277 SHA-256: 068cee12ab06f43f479afb2f92d07565d17d8c76d31b379155cfffed5f4183fc
154 Risk Score

Malware Insights

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

This PDF document contains a large number of embedded links, many of which point to redirector infrastructure or potentially malicious PDF files. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' indicates that one of the URLs leads to known malicious redirector infrastructure. The 'PDF_SEO_LINK_FARM' heuristic further suggests the document is designed to host a large number of external links, likely for SEO manipulation or to distribute further malicious content. No scripts were extracted, but the primary attack vector appears to be the embedded links leading 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://ggtraff.ru/strik?keyword=bipolar+disorder+types+pdf
    • http://files.braddykema.com/uploads/1/3/1/4/131437322/mugenoko.pdf
    • http://files.velvetandtulle.com/uploads/1/3/1/1/131164350/zuwusebapuze.pdf
    • http://rubila.hickmanhighschooltheatre.com/uploads/1/3/1/4/131406806/5342449.pdf
    • http://sijelon.ayefilmstudio.com/uploads/1/3/1/0/131070331/jemaragowavufelo.pdf
    • http://files.lavingtonurc.org/uploads/1/3/0/7/130776661/03c6c889.pdf
    • https://site-1036646.mozfiles.com/files/1036646/xunaroporitopiladorevetu.pdf
    • https://site-1037214.mozfiles.com/files/1037214/34197660665.pdf
    • https://site-1037164.mozfiles.com/files/1037164/36402761061.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0433/6487/6453/files/ncert_accountancy_book_class_11_solutions.pdf
    • https://cdn.shopify.com/s/files/1/0431/1187/4716/files/list_of_antidiabetic_plants.pdf
    • https://cdn.shopify.com/s/files/1/0431/3346/8821/files/marathi_kadambari_online.pdf
    • https://cdn.shopify.com/s/files/1/0433/7516/5594/files/kizuzepuzegulozodazugoj.pdf
    • https://cdn.shopify.com/s/files/1/0440/0916/0854/files/31960000342.pdf
    • https://uploads.strikinglycdn.com/files/00bcafec-6b6e-407d-bd55-959d42407cfb/pobidovanevo.pdf
    • https://uploads.strikinglycdn.com/files/9ae6cf05-82be-4fb7-9d20-c8f8095709d9/1921235041.pdf
    • https://uploads.strikinglycdn.com/files/6d831652-9a38-4f68-b265-7e069730576e/47473321875.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007276.bin
ff8ddb34f23b33b7a63c8e9cd2dca8ecf7ea32bbae893f2866568582f4ffb975		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7276 4868 bytes
font_01_sfnt_off00008318.bin
251095fb683c6de7a1371d1602ba8c05f07796789f79a230e0a39a8b60439bf6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8318 10448 bytes
font_02_sfnt_off0000a6be.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA6BE 4324 bytes

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