Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc08bbaebb99fab1…

MALICIOUS

PDF

72.2 KB Created: 2021-03-03 01:17:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 572fecae0f20ae161627ad4fe96717b5 SHA-1: 9a5465d7c526a573837dc9288242c5e883d855f8 SHA-256: dc08bbaebb99fab1af1c4c27fa3dd19658c9270fb6460ce66f8bdcca50efd443
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://zajinet.ru/wix?keyword=cl2o7+compound+name PDF link annotation
    • http://vzruvayarttraff.xyz/cat_3126_parts_cataloge7dx9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383160/normal_601bb2e12b7d9.pdfIn PDF document text
    • https://sodefabufu.weebly.com/uploads/1/3/4/4/134473286/zifipemogotinagime.pdfIn PDF document text
    • http://nubigawe.22web.org/gmod_autoexec._cfg.pdfIn PDF document text
    • http://womenit.space/mijomaxewesutagarudofoze8pjbn.pdfIn PDF document text
    • http://raisinshq.pro/themes_in_jazz_by_toni_morrisonrvxfm.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411917/normal_602f2bfeca6d3.pdfIn PDF document text
    • https://golotarati.weebly.com/uploads/1/3/1/8/131856611/fewexe_zokadel.pdfIn PDF document text
    • http://ing-cliente.com/95008090472izvyd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410989/normal_6033f40767ef7.pdfIn PDF document text
    • https://lujukote.weebly.com/uploads/1/3/2/7/132712447/nodizexevewoz_zumurapibakokum.pdfIn PDF document text
    • http://kinoxca.xyz/ocean_dream_ship_itinerary2edfs.pdfIn PDF document text
    • https://saxipapes.weebly.com/uploads/1/3/0/7/130738636/gejimorutof_lizar.pdfIn PDF document text
    • https://xikixofifot.weebly.com/uploads/1/3/4/5/134597691/7361118.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/satedafadusizo/xoxixegopovubapejavizurij.pdfIn PDF document text
    • http://sosumanaxixit.epizy.com/the_yard_birds_band_members.pdfIn PDF document text
    • https://s3.amazonaws.com/juvuraguvutoxif/jikovewizobajulenerones.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_off0000def8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEF8 5060 bytes
SHA-256: 04a32519347b9bb89f6412fa4790f69eb51ee7fc58acd229eef8788ccbbd72b6
font_01_sfnt_off0000f024.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF024 10596 bytes
SHA-256: 26a552021a358cc6d0412b0d26a2f1287ab881c7e559885a1806982c7f30c865