Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb50e9c2a1814a5f…

MALICIOUS

PDF

71.4 KB Created: 2021-03-03 10:09:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 949f65b56814b5f84d88fca5de319c67 SHA-1: 640d4f9deb84fac85f167271a9150396f9437130 SHA-256: bb50e9c2a1814a5fbbffb505705071d56aceda3c2ce4042ec0768b043bdb889d
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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 https://botokaw.ru/wix?keyword=female+warforged+names PDF link annotation
    • http://smartline58.ru/archive_25_albumh7v5o.pdfIn PDF document text
    • http://bbbbbbbbeeee.space/kakufetafobsfopy.pdfIn PDF document text
    • http://politach.com/26877461869bfozk.pdfIn PDF document text
    • http://wivaserana.mywebcommunity.org/learn_python_for_free_reddit.pdfIn PDF document text
    • http://homeolimp.com/1025702368878w5e.pdfIn PDF document text
    • http://autoupgrade.website/rexenizufakololugatenivizbaio7.pdfIn PDF document text
    • http://kikababono.mywebcommunity.org/5942276544.pdfIn PDF document text
    • http://lalashoppen.online/kunumifulivojobn4ecn.pdfIn PDF document text
    • https://xutorobufazam.weebly.com/uploads/1/3/5/3/135345650/patew-mofiruga-wilosoj-fibibanawu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/wopari/what_percentage_of_california_are_homeless.pdfIn PDF document text
    • http://demuwesax.epizy.com/meagre_sentence_form.pdfIn PDF document text
    • http://vejegaba.atwebpages.com/tagumonibos.pdfIn PDF document text
    • http://dazoxamawix.rf.gd/18418318798.pdfIn PDF document text
    • https://s3.amazonaws.com/gadumagabusodel/31551483873.pdfIn PDF document text
    • http://rosuwofa.rf.gd/pisiform_bone_pain_and_swelling.pdfIn PDF document text
    • http://gadivedu.rf.gd/la_cimbali_m27_re_manual.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_off0000db9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB9A 5272 bytes
SHA-256: 1700fec76d287d700061ad3d4c29c2876fee0349062d02223f1d0da653064ae8
font_01_sfnt_off0000ed87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED87 10328 bytes
SHA-256: 27f524e5f6486de35a49fd88d3f29d63a06156530aada1904795552dc25126e9