Malicious PDF — malware analysis report

Static analysis result for SHA-256 b556311be2d97996…

MALICIOUS

PDF

68.6 KB Created: 2021-02-27 08:11:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 1d4abedd3f7c425fc53d656d42b7a06b SHA-1: 433d9fec613d187b4236464f63bacda188b6edc2 SHA-256: b556311be2d97996377363838fcc01c227dad502aa0f8a5fae0160f51e75858e
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://xajibur.ru/award?keyword=chauvet+4play+cl PDF link annotation
    • http://rilomenininun.getenjoyment.net/texudiloxakevapirite.pdfIn PDF document text
    • http://svarka-aurora.online/deck_heroes_apk_mod6tc8v.pdfIn PDF document text
    • http://mosquito.codes/100_opposite_words_in_marathijga74.pdfIn PDF document text
    • http://rovebagilin.22web.org/26322363620.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495997/normal_5fe170de663b6.pdfIn PDF document text
    • http://winovigamaj.mygamesonline.org/13483248690.pdfIn PDF document text
    • https://widedajixefur.weebly.com/uploads/1/3/5/3/135312737/59d6039ee30.pdfIn PDF document text
    • http://braco.ru/8993862609biuhi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370319/normal_5fc8ebc08cec4.pdfIn PDF document text
    • http://likedizar.medianewsonline.com/how_to_pair_ue_boom_2_speakers_together.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476766/normal_6030db3502a67.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421641/normal_5fd0eec7d0c83.pdfIn PDF document text
    • https://raragunaxunu.weebly.com/uploads/1/3/4/8/134886293/watif_vinojomaguzusi_bilofewoteta_naxiwope.pdfIn PDF document text
    • https://lufegema.weebly.com/uploads/1/3/4/1/134132410/tasad.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://litorow.myartsonline.com/55610112146.pdfIn PDF document text
    • http://vorisenunajix.myartsonline.com/gubazuliba.pdfIn PDF document text
    • https://s3.amazonaws.com/nedijowewoded/97727410076.pdfIn PDF document text
    • http://duvawozejesazol.rf.gd/tatibupoketoxa.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_off0000cf0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF0E 4900 bytes
SHA-256: 9042178189636515d2bb32307a1fedf1b8e540ae4b6cf2c1575c6c493a2d61ca
font_01_sfnt_off0000dfd0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFD0 10792 bytes
SHA-256: 1bfc929e9c438cd7cf3bd507b39dfdb28516549f2e90c92a8395026f60500462