Malicious PDF — malware analysis report

Static analysis result for SHA-256 be6e1fabf0fe0833…

MALICIOUS

PDF

220.9 KB Created: 2020-06-08 10:58:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-09-15
MD5: 5e2937e692db22049c9d000e8027d57c SHA-1: b955e7cef6c9ff2ffa8ebc32e614b9b9d33b0b13 SHA-256: be6e1fabf0fe08337c862e00891fdae705ba87a2a63621432b8c3956e5968852
76 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://youbangtaobaowangwangqunfaruanjian.thesurge.cc/uploads/1/3/0/8/130874668/130874668.html#american+pageant+chapter+27+audiobook PDF link annotation
    • http://premagro.com/uploads/1/3/0/2/130272428/jojudake.pdfIn PDF document text
    • http://essentiallysusie.com/uploads/1/3/0/5/130589202/dalot.pdfIn PDF document text
    • http://sourcedocumentssolution.net/uploads/1/3/0/4/130435609/3bf4a1c4feaaa.pdfIn PDF document text
    • http://gritngravel.com/uploads/1/3/0/3/130379147/8707575.pdfIn PDF document text
    • http://towerviewsuites.com/uploads/1/3/0/5/130588875/mazejanotul.pdfIn PDF document text
    • http://mta-sts.autismcommunity.org.au/uploads/1/3/1/4/131453350/2333313.pdfIn PDF document text
    • http://thecotillionsocietyofcleveland.org/uploads/1/3/0/8/130874153/1904d5faadd2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://jipikufe.files.wordpress.com/2020/06/wotasopelaz.pdfIn PDF document text
    • https://kuperira.files.wordpress.com/2020/06/493882466.pdfIn PDF document text
    • https://ferorobel.files.wordpress.com/2020/06/67306036595.pdfIn PDF document text
    • https://sadobibelor.files.wordpress.com/2020/06/kexikitevenokapoj.pdfIn PDF document text
    • https://dibozulanid.files.wordpress.com/2020/06/77749581418.pdfIn PDF document text
    • https://legukomos.files.wordpress.com/2020/06/10501659684.pdfIn PDF document text
    • https://megazotawulo183772260.files.wordpress.com/2020/06/12797374542.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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003417a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3417A 11024 bytes
SHA-256: 519b3f1bd0a40c5609f9b80db02727e114952e3c6c1d87cd9919c8a61a9beb56